ORCID Profile
0000-0003-1405-7828
Current Organisation
University of Wollongong
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Manufacturing Processes and Technologies (excl. Textiles) | Numerical Modelling and Mechanical Characterisation | Tribology | Mechanical Engineering | Materials Engineering | Manufacturing Engineering Not Elsewhere Classified | Manufacturing Engineering | Mechanical Engineering | Condensed matter modelling and density functional theory | Additive manufacturing | Materials engineering | Nanotechnology | Civil Geotechnical Engineering | Construction Engineering | Composite Materials | Civil Engineering | Alloy Materials | Metals and alloy materials | Computational Fluid Dynamics | Civil Engineering not elsewhere classified | Interdisciplinary Engineering Not Elsewhere Classified | Materials Engineering Not Elsewhere Classified |
ANZSRC Socio-Economic Objective (SEO)
Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified | Environmentally Sustainable Plant Production not elsewhere classified | Iron and steel (e.g. ingots, bars, rods, shapes and sections) | Energy storage | Transport | Civil Construction Processes | Metals (composites, coatings, bonding, etc.) | Lubricants | Lubricants | Sheet metal products | Ground transport | Oil and Gas Exploration | Polymeric materials (e.g. paints) | Basic Iron and Steel Products | Rail Equipment | Manufactured products not elsewhere classified | Rail Infrastructure and Networks
Related Links
Publications
Variations in the microstructure and mechanical properties of the oxide layer on high speed steel hot rolling work rolls
Publisher: Elsevier BV
Date: 12-2012
A First-Principles Study of Impurity-Enhanced Adhesion and Lubricity of Graphene on Iron Oxide Surface
Publisher: American Chemical Society (ACS)
Date: 16-02-2021
Surface transformation and interactions of iron oxide in glassy lubricant: An ab initio study
Publisher: Elsevier BV
Date: 10-2020
A fuzzy algorithm for flatness control in hot strip mill
Publisher: Elsevier BV
Date: 09-2003
An insight into the deformation and orientation development of severely plastic deformed aluminum
Publisher: AIP
Date: 2013
DOI: 10.1063/1.4806826
Influence of alkaline species on the high temperature lubrication of molten carbonate
Publisher: Elsevier BV
Date: 2022
A study of alkali polyphosphate/borate/carbonate for high temperature lubrication of silicon steel using ball-on-disc tests
Publisher: Elsevier BV
Date: 08-2021
Tribofilms generated from bulk polyphosphate glasses at elevated temperatures
Publisher: Elsevier BV
Date: 05-2015
Acoustic emission-based condition monitoring methods: Review and application for low speed slew bearing
Publisher: Elsevier BV
Date: 05-2016
Corrigendum to Comparisons of stress, heat and wear generated by AC versus DC locomotives under diverse operational conditions [WEAR 328-329 (2015) 186–196]
Publisher: Elsevier BV
Date: 09-2015
Tribological behavior of hydrogenated diamond-like carbon on polished alumina substrate with chromium interlayer for biomedical application
Publisher: Elsevier BV
Date: 09-2016
Na2CO3 and graphene nanocomposites toward efficient lubrication
Publisher: Elsevier BV
Date: 06-2021
Probing tribo-interface evolution governing high temperature tribology of nitride ceramic contacts
Publisher: Elsevier BV
Date: 02-2020
Intrinsic Effect of Alkali Concentration on Oxidation Reactivity and High-Temperature Lubricity of Silicate Melts between Rubbed Steel/Steel Contacts
Publisher: American Chemical Society (ACS)
Date: 18-06-2020
Effect of carbides on the creep properties of a Ni-base superalloy M963
Publisher: Elsevier BV
Date: 04-2005
Lubrication mechanism of sodium metasilicate at elevated temperatures through tribo-interface observation
Publisher: Elsevier BV
Date: 02-2020
Physical and chemical insights into molecular adsorption of copolymer’s monomers on Rutile surface
Publisher: Elsevier BV
Date: 04-2019
Erratum: Chemical nature of alkaline polyphosphate boundary film at heated rubbing surfaces (Scientific Reports (2016) 6 (26008) DOI: 10.1038/srep26008)
Publisher: Springer Science and Business Media LLC
Date: 27-06-2016
DOI: 10.1038/SREP28214
Abstract: Scientific Reports 6: Article number: 26008 published online: 16 May 2016 updated: 27 June 2016. In this Article, Affiliation 6 is incorrectly listed as ‘Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, Australia’. The correct affiliation is listed below:
Adsorption of Normal-Alkanes on Fe(110), FeO(110), and Fe2O3(0001): Influence of Iron Oxide Surfaces
Publisher: American Chemical Society (ACS)
Date: 27-05-2015
Investigation on slab continuous straightening technology and deformation analysis
Publisher: Inderscience Publishers
Date: 2013
In-situ investigation of oxidation behaviour in high-speed steel roll material under dry and humid atmospheres
Publisher: Elsevier BV
Date: 08-2010
Elevated Temperature Sliding Wear Behaviors of Piercing Plug Tool Steels Used for Production of Seamless Tube of Power Plant
Publisher: The Korean Institute of Metals and Materials
Date: 05-12-2015
The wave motion of the rolling force during variable gauge rolling
Publisher: Wiley
Date: 06-06-2013
Computational Tribochemistry: A Review from Classical and Quantum Mechanics Studies
Publisher: American Chemical Society (ACS)
Date: 03-08-2021
Surface Film Adsorption and Lubricity of Soybean Oil In-Water Emulsion and Triblock Copolymer Aqueous Solution: A Comparative Study
Publisher: MDPI AG
Date: 30-12-2016
Discrete element method using cohesive plastic beam for modeling elasto-plastic deformation of ductile materials
Publisher: Springer Science and Business Media LLC
Date: 11-07-2020
Formation mechanism and evolution of white etching layers on different rail grades
Publisher: Elsevier BV
Date: 10-2022
Numerical Evaluation of a High Speed Steel Work Roll during Hot Strip Rolling Process
Publisher: Trans Tech Publications, Ltd.
Date: 08-2017
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.904.55
Abstract: Hot strip rolling process is one of the most promising industrial processes to fabricate finished or semi-finished bulk products. Numerical analysis on the temperature and thermal stress distributions in a high speed steel work roll during hot rolling has been conducted based on a transient thermo-mechanical model. Influence of initial work roll body temperature on temperature and thermal stress has been discussed in detail by assuming different rolling stages. Compared to the work roll surface, stress is much smaller at depth of 2.1 mm and 5.0 mm, respectively. Results showed similar maximum circumferential thermal stress at both depths of 2.1 mm and 5.0 mm when the roll has initial temperature of 25 °C and 100 °C, but they are about 3 times and 8 times larger than at depth of 2.1 mm and 5.0 mm, respectively, when the initial temperature is 200 °C.
Effect of Pre‐H eating on the Microstructural Evolution and Super‐P lasticity of Al Deformed by Accumulative Roll Bonding
Publisher: Wiley
Date: 03-07-2013
A micro deep drawing of ARB processed aluminium foil AA1235
Publisher: Inderscience Publishers
Date: 2013
Asymmetric cold rolling of thin strip with roll edge kiss
Publisher: IEEE
Date: 05-2007
Tribo-surface charge and polar lubricant molecules on friction and lubrication under multiple 3D asperity contacts
Publisher: Elsevier BV
Date: 05-2015
Tribological behaviors of two distinct classes of white etching layers on rail surface
Publisher: Elsevier BV
Date: 11-2023
A tool to estimate the wheel/rail contact and temperature rising under dry, wet and oily conditions
Publisher: WIT Press
Date: 24-06-2014
DOI: 10.2495/CR140151
Deformation behavior and wear resistance of hard TiCN and TiCN/Ti coatings on Ti6Al4V alloy
Publisher: Trans Tech Publications, Ltd.
Date: 05-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.939.451
Abstract: Monolayer titanium carbide nitride (TiCN) and multilayer TiCN reinforced titanium (Ti) are coated on the surface of Ti6Al4V alloy by Filtered Arc Deposition System (FADS). Surface chemical composition has been characterized by an X-ray diffraction (XRD). Wear resistance of TiCN coating and TiCN/Ti coating have been detected by hommel tester T1000. Hardness and deformation mechanisms of the multilayer coatings are investigated using depth-sensing indentation comparison with the monolayer TiCN coatings. Focused Ion Beam (FIB) and Transmission Electron Microscopy (TEM) are used to identify the fracture modes of the coatings. The TEM image observations show that the inclined crack is the dominant crack in the monolayer TiCN coating while small bending crack is the dominant crack in the multilayer TiCN/Ti coating. The Ti layer with good ductility could efficiently suppress the crack propagation and absorb more indent energy.
Evaluation of tribological performance of oxide nanoparticles in fully formulated engine oil and possible interacting mechanism at sliding contacts
Publisher: Elsevier BV
Date: 05-2016
Tribological features of roll surface in cold metal rolling
Publisher: Inderscience Publishers
Date: 2009
Influence of white etching layer on rolling contact behavior at wheel-rail interface
Publisher: Springer Science and Business Media LLC
Date: 20-05-2020
DOI: 10.1007/S40544-020-0388-X
Abstract: The existence of narrow and brittle white etching layers (WELs) on the rail surface is often linked with the formation of rail defects such as squats and studs, which play the key roles in rail surface degradation and tribological performance. In the present study, a systematic investigation on stress/strain distribution and fatigue life of the WEL during wheel-rail rolling contact was conducted based on a numerical model considering the realistic wheel geometry. This is the first study considering the influence of rail materials, loading pressure, frictional condition, WEL geometry ( a/b ), and slip ratio (Sr) in the practical service conditions at the same time. The results revealed much higher residual stress in WEL than in rail matrix. Stress changes along the rail depth matched with the previously reported microstructure evolutions. The current work revealed that the maximum difference in contact stress between the wheel passages of rail matrix and the WEL region (noted as stress variation) rises with the increase of loading pressure, the value of a/b , and Sr but drops with the friction coefficient ( μ ). In addition, a critical length-depth ratio of 5 for a/b has been found. The fatigue parameter, FP, of the WEL decreased quickly with the length-depth ratio when it was less than 5 and then increased slightly when it was larger than 5. This study also revealed that the fatigue life of the WEL was reduced for high strength head hardened (HH) rail compared with standard carbon (SC) rail.
Micro-scratch behaviour of adsorbed film formed by aqueous copolymer lubricants with phosphate ester additive on Ti-coated surface
Publisher: Emerald
Date: 13-11-2017
Abstract: This paper aims to assess the adsorption behaviour and the adhesion strength of lubricant films formed by polypropylene oxide-polyethylene oxide-polypropylene oxide (PPO-PEO-PPO) with phosphate ester additive on Ti-coated surface and to identify the influence of molecular architecture and phosphate ester additive. The thickness of the adsorbed PPO-PEO-PPO with phosphate ester lubricant films on Ti surfaces was measured by ellipsometry. The adhesion strength of the copolymer and the copolymer with phosphate ester lubricants was studied by the micro-scratch tests the scratch tracks on the surfaces were observed by atomic force microscopy and scanning electronic microscopy. The copolymer with a higher weight percentage of PPO not only formed a thicker film but also showed stronger adhesion and better lubrication performance. The added phosphate ester increased the film thickness and improved the tribological behaviour. The finding reveals that the adsorbed film thickness which depends on the PPO chain length and the presence of phosphate ester has a considerable effect on the scratch behaviour. This paper fulfils the studies about adsorption behaviour and lubrication mechanism of this new lubricant which has not been adequately investigated on the metal surface.
Chemical- and Mechanical-Induced Lubrication Mechanisms during Hot Rolling of Titanium Alloys Using a Mixed Graphene-Incorporating Lubricant
Publisher: MDPI AG
Date: 02-04-2020
DOI: 10.3390/NANO10040665
Abstract: Hot rolling of titanium alloy currently is carried out without lubrication because of the surface defects. In order to explore an effective lubrication scheme to reduce friction and wear during hot rolling of titanium alloy, a mixed graphene-incorporating lubricant has been proposed to study its lubrication performance and mechanism. The tribological experiments were carried out by ball-disk friction and wear tester under hot-rolling parameters. Scanning electron microscopy (SEM), X-ray energy spectrum analyzer (EDS), X-ray powder diffractometer (XRD) and Raman analysis were used to analyse the surface and cross-section of the wear marks on the s les after the tribological experiments. The results show that the friction coefficient decreases up to about 35% compared with tests under dry and lubricated conditions. The surface quality of the wear marks is improved significantly after applying the proposed lubricant. The graphene which is embedded in the phosphate film can be effectively applied as a lubricating material to strengthen the lubricating film with less combustion loss at high temperatures. A chemical- and mechanical-induced lubrication mechanism for the hot rolling of titanium sheets has been proposed due to the synergistic lubrication effect of the graphene, ZrO2 nano particles and phosphate. It is of great significance and potential value to apply this proposed lubricant as an effective way to reduce the wear, friction and oxidation during the hot-rolling process of titanium alloy.
Effect of loading on the friction and interface microstructure of lubricated steel tribopairs
Publisher: Elsevier BV
Date: 12-2017
Surface characteristics of oxide scale in hot strip rolling
Publisher: Elsevier BV
Date: 09-2003
Investigation of different inorganic chemical compounds as hot metal forming lubricant by pin-on-disc and hot rolling
Publisher: Elsevier BV
Date: 09-2018
Mechanics of roll edge contact in cold rolling of thin strip
Publisher: Elsevier BV
Date: 07-2006
A study of water-based lubricant with a mixture of polyphosphate and nano-TiO2 as additives for hot rolling process
Publisher: Elsevier BV
Date: 07-2021
Tribological Performance of Inorganic Borate at Elevated Temperatures
Publisher: Informa UK Limited
Date: 24-08-2020
Hot corrosion of borate melt and interface chemistry of borate-coated steel under tribological stimulation
Publisher: Elsevier BV
Date: 08-2018
Roughness and Lubricant Effect on 3D Atomic Asperity Contact
Publisher: Springer Science and Business Media LLC
Date: 05-11-2013
Microstructural changes on railway track surfaces caused by electrical leakage between wheel and rail
Publisher: Elsevier BV
Date: 12-2019
TiO2-SiO2 Nanoparticle-Stabilized Soybean Oil-in-Water Emulsions: Dispersion Stability, Rolling Lubrication Performance, and Surface Self-Cleaning Effects
Publisher: ASME International
Date: 22-03-2022
DOI: 10.1115/1.4053356
Abstract: Vegetable oil-in-water emulsions are common cold rolling lubricants. However, maintaining the required dispersion for polar oil droplets for consistent lubrication and proper surface self-cleaning after rolling remains a practical challenge. In this study, titanium silicate TiO2–SiO2 nanoparticle (NP)-stabilized soybean oil emulsions are produced and NPs functions as dispersant, lubrication enhancer, and detergent agent to clean up oil residue are explored. Cold rolling of SS316 strips reveals a threshold of NPs wt%, at which stably dispersed oil droplets improve tribology and lower the rolling parameters relative to without or at high wt% of NPs. Cleaner as-rolled strips are also obtained with NPs. Favorable results are attributed to the formation of NP-coating layers on oil droplets which enhances dispersion, optimizes plate-out while keeping adequate wetting, and provides a three-body abrasive rolling as opposed to two-body adhesion without NPs. A model of sliding–rolling lubrication in cold rolling is also discussed.
High temperature low cycle fatigue behavior of Ni-base superalloy M963
Publisher: Elsevier BV
Date: 08-2005
FE method to predict damage formation on curved track for various worn status of wheel/rail profiles
Publisher: Elsevier BV
Date: 2015
Theoretical and experimental investigation of thermal and oxidation behaviours of a high speed steel work roll during hot rolling
Publisher: Elsevier BV
Date: 10-2017
The Influence of Water Addition on High-Temperature Tribological Properties of Interstitial Free Steel Sliding against Different Counterparts
Publisher: Informa UK Limited
Date: 15-03-2018
The effect of expanded graphite with sodium metasilicate as lubricant at high temperature
Publisher: Elsevier BV
Date: 04-2020
Multifunctional Bi-Layered Tribofilm Generated on Steel Contact Interfaces under High-Temperature Melt Lubrication
Publisher: American Chemical Society (ACS)
Date: 03-11-2017
Nanomechanical properties of TiCN and TiCN/Ti coatings on Ti prepared by Filtered Arc Deposition
Publisher: Elsevier BV
Date: 02-2015
Oxidative and Frictional Behavior of a Binary Sodium Borate–Silicate Composite in High-Temperature Lubricant Applications
Publisher: American Chemical Society (ACS)
Date: 18-12-2020
Characterisation of White Etching Layers formed on rails subjected to different traffic conditions
Publisher: Elsevier BV
Date: 10-2019
Influence of cold rolling reduction on the deformation behaviour and crystallographic orientation development
Publisher: Elsevier BV
Date: 2014
Lubrication performance of aqueous copolymer lubricants with phosphate ester additive at different temperature on the Si surface
Publisher: Wiley
Date: 07-01-2020
DOI: 10.1002/LS.1498
Influence of molecular structure on lubrication of aqueous triblock copolymer lubricants between rutile surfaces: An MD approach
Publisher: No publisher found
Date: 2019
A molecular dynamics simulation of 3D rough lubricated contact
Publisher: Elsevier BV
Date: 11-2013
An Initial Report on the Structure–Property Relationships of a High‐Strength Low‐Alloy Steel Subjected to Advanced Thermomechanical Processing in Ferrite
Publisher: Wiley
Date: 13-02-2020
Evolution of thermally induced white etching layer at rail surface during multiple wheel/train passages
Publisher: Elsevier BV
Date: 06-2022
First-Principles Study of the Adsorption and Depolymerization Mechanisms of Sodium Silicate on Iron Surfaces at High Temperature
Publisher: American Chemical Society (ACS)
Date: 18-08-2018
High load capability, sticking scale inhabitation and promising lubrication of sodium carbonate coating for steel/steel contact at high temperature
Publisher: Elsevier BV
Date: 2021
The Influence of Alkali Metal Polyphosphate on the Tribological Properties of Heavily Loaded Steel on Steel Contacts at Elevated Temperatures
Publisher: Wiley
Date: 19-03-2015
Tribological performance of aqueous copolymer lubricant in loaded contact with Si and coated Ti film
Publisher: Elsevier BV
Date: 04-2013
Temperature/shear-induced interface reconstruction of hot rolled carbon steel lubricated by polyphosphate composite lubricants
Publisher: Elsevier BV
Date: 12-2019
Molecular dynamics simulation of the grain boundary sliding behaviour for Al Σ5 (210)
Publisher: Elsevier BV
Date: 2014
Evolution of microstructure, temperature and stress in a high speed steel work roll during hot rolling: Experiment and modelling
Publisher: Elsevier BV
Date: 02-2017
A 3D dynamic model to investigate wheel–rail contact under high and low adhesion
Publisher: Elsevier BV
Date: 08-2014
Analysis of surface temperature and thermal stress field of slab continuous casting
Publisher: Trans Tech Publications, Ltd.
Date: 06-2009
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.76-78.554
Abstract: There are many defects on the surface of continuous casting slab, such as corner cracks, longitudinal cracks etc. To analyze the cracks and determine their locations, two-dimensional heat transfer mathematical model and thermal elasto-plastic stress model of slab casting were established in this paper. The process of solidification, temperature field, and thermal stress distribution on slab surface were analyzed using finite element method. The effect of thermal stress on the cracks on the slab surface was discussed. The location of the cracks caused by thermal stress can be predicted. This is useful for finding approaches to overcome these defects.
Microstructural Evolution and Mechanical Property of AA5050 Alloy Deformed by Accumulative Roll Bonding
Publisher: Springer Science and Business Media LLC
Date: 16-04-2013
Excellent melt lubrication of alkali metal polyphosphate glass for high temperature applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA12028K
Abstract: A new class of high temperature lubricant of inorganic alkali metal polyphosphate was developed for hot metal forming, which involved a fundamental knowledge of melt lubrication.
Adsorption structure and adhesion strength of aqueous copolymer lubricant films on Si surface
Publisher: Wiley
Date: 03-05-2017
DOI: 10.1002/LS.1384
Interface adhesion during sliding wear in cast iron after hot deformation
Publisher: Elsevier BV
Date: 04-2013
Molecular Dynamics Simulation of Confined n-Alkanes Between Nano-Asperity Walls
Publisher: American Society of Mechanical Engineers
Date: 07-10-2012
Abstract: A molecular dynamics simulation of confined n-alkanes is conducted to investigate the effect of chain length (C8, C16, C32, C64) and normal load (250, 500, 750, 1000MPa) on friction and asperity contact. The results indicate that the longer chain n-alkanes maintain more monolayer atoms in the asperity contact interface than the shorter ones and as a result significantly reduce the friction force. Under a normal load of 250MPa, the asperity with C32 and C64 are separated by the lubricant with less metal contact. Periodic friction force is observed and it correlates with the deformation of the local lattice that breaks and relocates the atoms during the asperity contact.
High temperature lubrication and mechanism of sodium carbonate by interface tailoring
Publisher: Elsevier BV
Date: 11-2020
Foreword
Publisher: Springer Science and Business Media LLC
Date: 28-09-2013
Chemical Origin of Sodium Phosphate Interactions on Iron and Iron Oxide Surfaces by First Principle Calculations
Publisher: American Chemical Society (ACS)
Date: 28-12-2018
Lubricant as a sticking-scale inhibitor on high temperature sliding contact
Publisher: Elsevier BV
Date: 12-2019
Chemical nature of alkaline polyphosphate boundary film at heated rubbing surfaces
Publisher: Springer Science and Business Media LLC
Date: 16-05-2016
DOI: 10.1038/SREP26008
Abstract: Alkaline polyphosphate has been demonstrated to be able to reduce significant wear and friction of sliding interfaces under heavy loads ( GPa) and elevated temperature (800 °C and above) conditions, e.g. hot metal manufacturing. The chemical composition and fine structure of polyphosphate lubricating film is not well understood as well as the role of alkaline elements within the reaction film at hot rubbing surface. This work makes use of the coupling surface analytical techniques on the alkaline polyphosphate tribofilm, XANES, TOF-SIMS and FIB/TEM. The data show the composition in gradient distribution and trilaminar structure of tribofilm: a shorter chain phosphate overlying a long chain polyphosphate that adheres onto oxide steel base through a short chain phosphate. The chemical hardness model well explains the anti-abrasive mechanism of alkaline polyphosphate at elevated temperatures and also predicts a depolymerisation and simultaneous cross-linking of the polyphosphate glass. The role of alkaline elements in the lubrication mechanism is especially explained. This work firstly serves as a basis for a detailed study of alkaline polyphosphate tribofilm at temperature over 600 °C.
Microstructural investigation on a rail fracture failure associated with squat defects
Publisher: Elsevier BV
Date: 09-2023
Microstructural study and residual stress measurement of a hot rolling work roll material during isothermal oxidation
Publisher: Springer Science and Business Media LLC
Date: 21-01-2019
Phase Behavior and Lubricity of Aqueous PEO-PPO-PEO and PPO-PEO-PPO Triblock Copolymer Solutions
Publisher: Informa UK Limited
Date: 25-08-2016
Squat formation and the occurrence of two distinct classes of white etching layer on the surface of rail steel
Publisher: Elsevier BV
Date: 11-2017
Atomistic simulation of nanoindentation of iron with different indenter shapes
Publisher: SAGE Publications
Date: 16-06-2009
Abstract: In this article molecular dynamics (MD) simulations have been conducted to investigate the effect of the indenter shape on the nanoindentation behaviours of iron with body centred cubic structure. Two types of indenters (hemispherical indenter and pyramidal indenter) with dimensions of several nanometres have been modelled. The simulation results have shown that the indenter shape significantly influences the nanoindentation behaviours at such small scale. The indentation force increases with indentation depth during loading for the hemispheri-cal indenter, while the indentation force is low in values for the pyramidal indenter. To validate the MD model nanoindentation experiments have been carried out. The calculated indentation hardness of the hemispherical indenter is in reasonable agreement with the experimental value.
Erratum to: Chemical nature of alkaline polyphosphate boundary film at heated rubbing surfaces (Scientific Reports, (2016), 6, 1, (26008), 10.1038/srep26008)
Publisher: Springer Science and Business Media LLC
Date: 24-08-2018
DOI: 10.1038/S41598-018-31338-0
Abstract: A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
Tribological behaviour of enamel coatings
Publisher: Elsevier BV
Date: 04-2019
Crystal plasticity FEM study on the influence of crystallographic orientation in copper single crystals subjected to equal channel angular pressing
Publisher: Wiley
Date: 07-06-2013
A Molecular Dynamics Simulation of Fracture in Nanocrystalline Copper
Publisher: Trans Tech Publications, Ltd.
Date: 10-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/JNANOR.25.188
Abstract: Removed at authors request due to editorial error the original was published www.scientific.net/JNanoR.23.50
Effect of Temperature and Strain Amplitude on Dislocation Structure of M963 Superalloy during High-Temperature Low Cycle Fatigue
Publisher: Japan Institute of Metals
Date: 2006
Formation of white etching layer on rails due to coupled thermal and mechanical actions
Publisher: Elsevier BV
Date: 10-2023
Mechanical and tribological assessments of high-vanadium high-speed steel by the conventional powder metallurgy process
Publisher: Springer Science and Business Media LLC
Date: 27-03-2019
A simulation of wear behaviour of high-speed steel hot rolls by means of high temperature pin-on-disc tests
Publisher: Elsevier BV
Date: 04-2013
Synchronization of two coupled exciters in a vibrating system of spatial motion
Publisher: Springer Science and Business Media LLC
Date: 12-11-2009
Adsorbed film structure and tribological performance of aqueous copolymer lubricants with phosphate ester additive on Ti coated surface
Publisher: Elsevier BV
Date: 05-2015
Sintered ZrO2 –TiO2 ceramic composite and its mechanical appraisal
Publisher: Elsevier BV
Date: 2020
Tribochemistry of adaptive integrated interfaces at boundary lubricated contacts
Publisher: Springer Science and Business Media LLC
Date: 30-08-2017
DOI: 10.1038/S41598-017-09879-7
Abstract: Understanding how an adaptive integrated interface between lubricant additives and solid contacts works will enable improving the wear and friction of moving engine components. This work represents the comprehensive characterization of compositional and structural orientation at the sliding interface from the perspective of surface/interface tribochemistry. The integrated interface of a lubricant additive-solid resulting from the friction testing of Graphite-like carbon (GLC) and PVD-CrN coated rings sliding against cast iron under boundary lubrication was studied. The results indicate that in the case of the CrN/cast iron pair the antiwear and friction behavior were very strongly dependent upon lubricant. In contrast, the tribology of the GLC surface showed a much lower dependence on lubrication. In order to identify the compounds and their distribution across the interface, x-ray microanalysis phase mapping was innovatively applied and the principle of hard and soft acids and bases (HSAB) to understand the behaviour. Phase mapping clearly showed the hierarchical interface of the zinc-iron polyphosphate tribofilm for various sliding pairs and different sliding durations. This interface structure formed between lubricant additives and the sliding surfaces adapts to the sliding conditions – the term adaptive interface. The current results help explain the tribology of these sliding components in engine.
An approach to analyse the special rolling of thin strip
Publisher: Elsevier BV
Date: 07-2006
Investigation into reciprocating dry sliding friction and wear properties of bulk CoCrFeNiMo high entropy alloys fabricated by spark plasma sintering and subsequent cold rolling processes: Role of Mo element concentration
Publisher: Elsevier BV
Date: 11-2020
Application of solid lubricant during warm rolling process of interstitial free steel
Publisher: Informa UK Limited
Date: 12-2013
First-principles molecular dynamics study on the surface chemistry and nanotribological properties of MgAl layered double hydroxides
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0NR08706H
Abstract: Friction reduction mechanism of layered double hydroxides (LDHs).
The Effect of Molecular Structure on the Adsorption of PPO-PEO-PPO Triblock Copolymers on Solid Surfaces
Publisher: Trans Tech Publications, Ltd.
Date: 11-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.773-774.670
Abstract: This paper investigates the adsorption behavior of triblock copolymer Poly (propylene oxide)-poly (ethylene oxide)-poly (propylene oxide), PPO-PEO-PPO on silicon and iron surfaces by using the contact angle goniometer, spectroscopic ellipsometer and atomic force microscopy (AFM). After adsorption, the decrease of water contact angle was observed on each surface and a larger reduction of water contact angle occurred on the surface covered by the copolymer film with longer and higher weight percent of hydrophilic PEO block. This means that the PEO block may be on the top of the adsorbed copolymer film. The film thickness measurement shows that the copolymer with longer and higher weight percent of PPO block forms a thicker film on the hydrophobic surface, which suggests that the hydrophobic PPO block of the copolymer in the aqueous solution plays the main role during the adsorption of PPO-PEO-PPO onto the hydrophobic surface. It has been found from the AFM results that the roughness of the surface decreased after adsorption and the smoother topography was observed on the surface adsorbed by a thicker adsorbed film.
Potential application of graphene nanoplatelets as a high temperature lubricant for hot rolling
Publisher: Springer Science and Business Media LLC
Date: 20-05-2022
DOI: 10.1007/S40544-021-0556-7
Abstract: Graphene has been shown to be a promising solid lubricant to reduce friction and wear of the sliding counterparts, and currently is reported to only function below 600 °C. In this study, its potential as a lubricant above 600 °C was studied using a ball-on-disc tribo-meter and a rolling mill. Friction results suggest that a reduction up to 50% can be obtained with graphene nanoplatelets (GnP) under lubricated conditions between 600–700 °C when compared with dry tests. and this friction reduction can last more than 3 min. At 800 and 900 °C, the friction reduction is stable for 70 and 40 s, respectively, which indicates that GnP can potentially provide an effective lubrication for hot metal forming processes. Hot rolling experiments on steel strips indicate that GnP reduces the rolling force by 11%, 7.4%, and 6.9% at 795, 890, and 960 °C, respectively. These friction reductions are attributed to the easily sheared GnP between the rubbing interfaces. A temperature higher than 600 °C will lead to the gasification of the residual graphene on the strip surface, which is believed to reduce the black contamination from traditional graphite lubricant.
Mechanisms of remarkable wear reduction and evolutions of subsurface microstructure and nano-mechanical properties during dry sliding of nano-grained Ti6Al4V alloy: A comparative study
Publisher: Elsevier BV
Date: 05-2022
A Molecular Dynamics Simulation of Fracture in Nanocrystalline Copper
Publisher: Trans Tech Publications, Ltd.
Date: 07-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/JNANOR.23.50
Abstract: A large-scale molecular dynamics simulation was used to investigate the propagation of cracks in three dimensional s les of nanocrystalline copper, with average grain sizes ranging from 5.34 to 14.8 nm and temperatures ranging from 1K to 500 K. It was shown that intragranular fracture can proceed inside the grain at low temperature, and plastic deformation around the tip of the crack is accommodated by dislocation nucleation/emission indeed, both fully extended dislocation and deformation twinning were visible around the tip of the crack during fracture. In addition, due to a higher concentration of stress in front of the crack at a relative lower temperature, it was found that twinning deformation is easier to nucleate from the tip of the crack. These results also showed that the decreasing grain size below a critical value exhibits a reverse Hall-Petch relationship due to the enhancing grain boundary mediation, and high temperature is better for propagating ductile cracks.
Contribution of Sodium Metasilicate to the Diffusion of Mn in Steel under Tribological Contact at High Temperatures
Publisher: American Chemical Society (ACS)
Date: 22-05-2019
Finite Element Modeling of the Nanoindentation of Layers of Porous Oxide on High Speed Steel
Publisher: Wiley
Date: 05-07-2013
Insights into the behavior of polyphosphate lubricant in hot rolling of mild steel
Publisher: Elsevier BV
Date: 04-2019
Evolution of rail surface degradation in the tunnel: The role of water on squat growth under service conditions
Publisher: Elsevier BV
Date: 03-2019
A crystal plasticity study of the effect of friction on the evolution of texture and mechanical behaviour in the nano-indentation of an aluminium single crystal
Publisher: Elsevier BV
Date: 2014
Effect of five typical vacancy defects on the tribological behaviors of MoS2 sheet: A molecular dynamics study
Publisher: Elsevier BV
Date: 12-2023
Porosity-induced mechanically robust superhydrophobicity by the sintering and silanization of hydrophilic porous diatomaceous earth
Publisher: Elsevier BV
Date: 05-2021
Tribochemical Behavior of Phosphate Compounds at an Elevated Temperature
Publisher: American Chemical Society (ACS)
Date: 09-11-2016
Tribological Performance of Aqueous Copolymers Solutions in Metallic Contact
Publisher: Trans Tech Publications, Ltd.
Date: 11-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.773-774.678
Abstract: Tribology performances (friction and anti-wear) of aqueous symmetrical tri-block normal and reverse copolymer solutions have been investigated. The ball-on-disk experiment was carried out to measure the coefficient of friction of solutions used at ~25°C and ~50°C. The interaction of alkyl phosphate ester, an anionic surfactant, and the aqueous copolymer solutions was also investigated. When solution was supplied at ~50°C, high friction and severe wear were found indicated that the solutions were not able to protect the surface. The friction and the anti-wear was found to improve when solution used at ~25°C. However, adding alkyl phosphate ester as extreme pressure additive into aqueous solutions produced a stronger adsorbed lubricant film protecting the surface. Low COF s were obtained from solutions below and above the cloud point. For the wear volume, the presence of phosphate ester produced comparable wear with the solution without added alkyl phosphate ester . The stainless steel was found less reactive to the alkyl phosphate ester hence the wear not much reduced. The possible lubrication mechanism is discussed by analysing the worn tracks using Scanning Electron Microscope (SEM), Atomic Force Microscope (AFM) and the water contact angle measurements.
Ab initio study on physical and chemical interactions at borates and iron oxide interface at high temperature
Publisher: Elsevier BV
Date: 2020
Structural response of alkali metal borates at Fe2O3 sliding interface: The effect of alkali cations
Publisher: Elsevier BV
Date: 11-2020
Modelling of work roll edge contact in thin strip rolling
Publisher: Elsevier BV
Date: 11-2004
Oxide scales growth of low-carbon steel at high temperatures
Publisher: Elsevier BV
Date: 11-2004
Understanding and treatment of squat defects in a railway network
Publisher: Elsevier BV
Date: 02-2020
Microstructural feature and tribological behaviors of pyrolytic carbon-coated copper foam/carbon composite
Publisher: Springer Science and Business Media LLC
Date: 26-07-2019
Dual effects of TiSiO4 composite nanoparticles on dispersion stability and lubrication performance of vegetable oil‐in‐water emulsions
Publisher: Wiley
Date: 06-12-2018
DOI: 10.1002/LS.1443
A study of abrasive wear on high speed steel surface in hot rolling by Discrete Element Method
Publisher: Elsevier BV
Date: 06-2017
A molecular dynamics simulation of boundary lubrication: The effect of n-alkanes chain length and normal load
Publisher: Elsevier BV
Date: 04-2013
Flow Stress and Pyroplastic Behaviour of Ultra-Low Carbon Steel in Warm Temperature Range
Publisher: Trans Tech Publications, Ltd.
Date: 05-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.939.415
Abstract: In order to analyze the mechanical behaviour of ultra-low carbon steel in warm rolling, the flow stress and pyroplastric behaviour were investigated on the Gleeble-3500 with the deformation temperatures in the warm range. The strain rates of 0.1, 1 and 10s -1 were applied to the temperatures above. A series of stress-strain curves were obtained after the compression Gleeble tests with different parameters. The result indicates the flow stress increases with the decreasing deformation temperatures during the compression. And it increases with the increasing strain rate as well. The constitutive equation, which includes the deformation activation energy Q and the Kelvin temperature T, was developed by using the concept that proposed by C. M. Sellars and W.J. M. Tegart. These equation results can be verified by the results of Gleeble compression test. It indicates the average error is reasonable and acceptable for predicting the flow stress and pyroplastic deformation behaviour of ultra-low carbon steel in warm temperature range. The achieved constitutive equation provides theoretical fundaments for designing the warm rolling process of ultra-low carbon steel. The experimental data also can be used as material property parameters for the establishment of finite element (FE) model.
Effects of Lubrication in Ferrite Rolling of Interstitial Free Steel
Publisher: Trans Tech Publications, Ltd.
Date: 11-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.773-774.186
Abstract: Ferrite rolling of interstitial free steel strip in the temperature range 650-850°C can effectively reduce furnace costs and scale formation as a result of lower strip reheating temperatures. Different lubrication conditions of lubricating oil, solid lubricant and dry condition were used during ferrite rolling tests of thin interstitial free steel strip on a 2-high Hille 100 experimental rolling mill. Different rolling speed, rolling temperature and reductions were applied to the rolling process. The rolling force and roll roughness were affected by the lubrication conditions and rolling parameters. Solid lubricant indicated an improved performance in terms of the roll roughness, as well as the oxidation property of the strip surface during ferrite rolling.
The influence of high temperature due to high adhesion condition on rail damage
Publisher: Elsevier BV
Date: 05-2015
An ab initio study on the effects of Na passivation on friction reduction of an iron oxide surface
Publisher: AIP Publishing
Date: 11-02-2020
DOI: 10.1063/1.5133078
Abstract: The presence of sodium-rich layers on iron oxide surfaces plays an important role in the functionality of glassy lubricants used in harsh working conditions of metal formation. However, the underlying low-friction mechanism of the sodium layer on iron oxide surfaces at the atomic level is not well understood. In this work, Na adsorption on the most stable surface of Fe2O3 (0001) is studied by density functional theory. The most stable adsorption configuration and the modifications induced by the adsorption on the structural as well as the electronic properties of the surface are discussed. By constructing the potential energy surface, we can quantitatively compare the sliding behaviors of two sodium passivated oxide layers with that of clean surfaces. The determination of energy corrugations, sliding paths, static lateral forces, and shear strengths has suggested a significantly lower friction in the Na-passivated system compared to that of the clean surface. The effects of a load on the friction are also investigated. The results indicate that sodium passivation in glass lubricants can help to prevent the direct contact of two oxide surfaces and thereby maintain a low friction and hence wear reduction at high pressures.
Study of work roll edge contact in asymmetrical rolling by modified influence function method
Publisher: Elsevier BV
Date: 05-2005
Characterizing deformation behaviour of an oxidized high speed steel: Effects of nanoindentation depth, friction and oxide scale porosity
Publisher: Elsevier BV
Date: 05-2019
Three dimensional microstructure study of oxide scale formed on a high-speed steel by means of SEM, FIB and TEM
Publisher: Elsevier BV
Date: 11-2011
Accelerating design of novel Cobalt‐based superalloys based on first-principles calculations
Publisher: Elsevier BV
Date: 12-2022
Tribological Behavior of Aqueous Copolymer Lubricant in Mixed Lubrication Regime
Publisher: American Chemical Society (ACS)
Date: 17-02-2016
Abstract: Although a number of experiments have been attempted to investigate the lubrication of aqueous copolymer lubricant, which is applied widely in metalworking operations, a comprehensive theoretical investigation at atomistic level is still lacking. This study addresses the influence of loading pressure and copolymer concentration on the structural properties and tribological performance of aqueous copolymer solution of poly(propylene oxide)-poly(ethylene oxide)-poly(propylene oxide) (PPO-PEO-PPO) at mixed lubrication using a molecular dynamic (MD) simulation. An effective interfacial potential, which has been derived from density functional theory (DFT) calculations, was employed for the interactions between the fluid's molecules and iron surface. The simulation results have indicated that the triblock copolymer is physisorption on iron surface. Under confinement by iron surfaces, the copolymer molecules form lamellar structure in aqueous solution and behave differently from its bulk state. The lubrication performance of aqueous copolymer lubricant increases with concentration, but the friction reduction is insignificant at high loading pressure. Additionally, the plastic deformation of asperity is dependent on both copolymer concentration and loading pressure, and the wear behavior shows a linear dependence of friction force on the number of transferred atoms between contacting asperities.
Effect of heat treatment on microstructures and tensile properties of Ni-base superalloy M963
Publisher: Elsevier BV
Date: 05-2005
Optimization of Short Stroke Control Curve in Hot Strip Mill by FEM Modelling
Publisher: Trans Tech Publications, Ltd.
Date: 12-2009
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.83-86.106
Abstract: The slab edge rolling has been widely used in the roughing stand of hot strip mill to control the width of the slab. However, the slab edge rolling and consequent horizontal rolling will cause a significant width change in the head part and tail part of the slab, which have to be trimmed before the finishing stands. The short stroke control (SSC) technology has been developed to overcome this problem. In this paper, the finite element method (FEM) has been used to simulate the unsteady edge rolling process. Three SSC control curves have been compared in order to obtain the best width control result. The optimized SSC control curve has been applied to the industrial rolling mill.
Understanding the tribological impacts of alkali element on lubrication of binary borate melt
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA04658A
Abstract: The involvement of sodium induces dramatic transformation in lubrication potentials of boron oxide melt.
Molecular dynamics simulation of confined n-alkanes: ordered structure and crystalline bridges
Publisher: Inderscience Publishers
Date: 2014
Effect of rolling parameters on cold rolling of thin strip during work roll edge contact
Publisher: Elsevier BV
Date: 09-2003
Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
Publisher: Elsevier BV
Date: 12-2023
Crystal plasticity modeling of texture evolution and heterogeneity in equal channel angular pressing of aluminum single crystal
Publisher: Elsevier BV
Date: 05-2011
Fracture mechanisms in rails with mechanically and thermomechanically-induced white etching layers under three-point bending
Publisher: Elsevier BV
Date: 2022
Unveiling oil-additive/surface hierarchy at real ring-liner contact
Publisher: Elsevier BV
Date: 06-2019
Crack propagation behavior in white etching layer on rail steel surface
Publisher: Elsevier BV
Date: 10-2019
Effect of MWCNT content on conductivity and mechanical and wear properties of copper foam/resin composite
Publisher: Elsevier BV
Date: 07-2019
Unusual Competitive and Synergistic Effects of Graphite Nanoplates in Engine Oil on the Tribofilm Formation
Publisher: Wiley
Date: 09-08-2019
Editorial
Publisher: Informa UK Limited
Date: 12-2013
Thickness and scratch resistance of adsorbed film formed by triblock symmetrical copolymer solutions
Publisher: Wiley
Date: 02-2016
DOI: 10.1002/LS.1332
Modified general solution model for interstitial solid solution
Publisher: Elsevier BV
Date: 09-2001
Reactive Molecular Dynamics Study of Hierarchical Tribochemical Lubricant Films at Elevated Temperatures
Publisher: American Chemical Society (ACS)
Date: 20-02-2020
Depolymerization of sodium polyphosphates on an iron oxide surface at high temperature
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7CP08364E
Abstract: Analysis of surface and chain length effects on the depolymerization of a phosphate-based lubricant at elevated temperature using first principles calculations.
An Investigation of Mechanical Non-Sinusoidal Oscillation of Continuous Casting Mold
Publisher: Trans Tech Publications, Ltd.
Date: 06-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.264-265.337
Abstract: In this paper, a new technique to set up non-sinusoidal oscillations of the mold in continuous casting is presented. The waveform functions of this non-sinusoidal oscillation technique and operational parameters are analyzed and the design to realize the non-sinusoidal oscillation of mold is presented. It is anticipated that this technique will be widely applied as it has many advantages such as lower investment and maintenance cost, simple equipment which is easy to manufacture and maintain.
Thermo-mechanical coupled finite element analysis of rolling contact fatigue and wear properties of a rail steel under different slip ratios
Publisher: Elsevier BV
Date: 2020
Surface characteristics and wettability of superhydrophobic silanized inorganic glass coating surfaces textured with a picosecond laser
Publisher: Elsevier BV
Date: 2021
Effects of normal load and velocity on the dry sliding tribological behaviour of CoCrFeNiMo0.2 high entropy alloy
Publisher: Elsevier BV
Date: 04-2020
Molecular dynamics simulation of effect of indenter shape on nanoscratch of Ni
Publisher: Elsevier BV
Date: 10-2009
Mechanisms of Pressure-Induced Structural Transformation in Confined Sodium Borate Glasses
Publisher: American Chemical Society (ACS)
Date: 05-12-2019
Abstract: In this paper, density functional theory simulations were conducted to investigate the structural adaptation of sodium borates
An investigation into the tribological behaviour of a work roll material at high temperature
Publisher: Elsevier BV
Date: 11-2011
Effect of hot coil profile containing ridges on ridge-buckle defects of cold rolled thin strip
Publisher: Springer Science and Business Media LLC
Date: 30-06-2009
Dispersion Stability and Lubrication Performance Correlation of Vegetable Oil-In-Water Emulsions with Nanoparticle-Shielded Oil Droplets
Publisher: MDPI AG
Date: 09-06-2018
A damping boundary condition for atomistic-continuum coupling
Publisher: IOP Publishing
Date: 05-2017
A molecular dynamics study on the tribological behavior of molybdenum disulfide with grain boundary defects during scratching processes
Publisher: Springer Science and Business Media LLC
Date: 20-11-2020
DOI: 10.1007/S40544-020-0459-Z
Abstract: The effect of grain boundary (GB) defects on the tribological properties of MoS 2 has been investigated by molecular dynamics (MD) simulations. The GB defects-containing MoS 2 during scratching process shows a lower critical breaking load than that of indentation process, owing to the combined effect of pushing and interlocking actions between the tip and MoS 2 atoms. The wear resistance of MoS 2 with GB defects is relevant to the misorientation angle due to the accumulation of long Mo-S bonds around the GBs. Weakening the adhesion strength between the MoS 2 and substrate is an efficient way to improve the wear resistance of MoS 2 with low-angle GBs.
Comparisons of stress, heat and wear generated by AC versus DC locomotives under diverse operational conditions
Publisher: Elsevier BV
Date: 04-2015
Friction and anti-wear property of aqueous tri-block copolymer solutions in metal forming
Publisher: Inderscience Publishers
Date: 2014
An overview of inorganic polymer as potential lubricant additive for high temperature tribology
Publisher: Elsevier BV
Date: 10-2016
The structural, tribological, and rheological dependency of thin hexadecane film confined between iron and iron oxide surfaces under sliding conditions
Publisher: Elsevier BV
Date: 09-2017
Rendering hydrophilic glass-ceramic enamel surfaces hydrophobic by acid etching and surface silanization for heat transfer applications
Publisher: Elsevier BV
Date: 07-2019
The mechanical behaviour of TiN and multi-layered coating of TiN/Ti on Ti6Al4V substrate during nano-indentation
Publisher: Inderscience Publishers
Date: 2014
Building Resilience in Times of Uncertainty and Complexity: Teacher Educator Perceptions of Pre-service Teacher Resilience
Publisher: Springer Singapore
Date: 2018
Study on Lubrication Characteristics of C4-Alkane and Nanoparticle during Boundary Friction by Molecular Dynamics Simulation
Publisher: MDPI AG
Date: 15-09-2021
DOI: 10.3390/MET11091464
Abstract: Lubricant has been widely applied to reduce wear and friction between the contact surfaces when they are in relative motion. In the current study, a nonequilibrium molecular dynamics (NEMD) simulation was specifically established to conduct a comprehensive investigation on the dynamic contact between two iron surfaces in a boundary friction system considering the mixed C4-alkane and nanoparticles as lubricant. The main research objective was to explore the effects of fluid and nanoparticles addition on the surface contact and friction force. It was found that nanoparticles acted like ball bearings between the contact surfaces, leading to a change of sliding friction mode to rolling friction mode. Under normal loads, plastic deformation occurred at the top surface because nanoparticles were mainly supporting the normal load. By increasing the number of C4-alkane molecules between two contact surfaces, the contact condition has been changed from partial to full lubrication. In addition, an attractive force from the solid–liquid LJ interaction between C4-alkane and surfaces was observed at the early stage of sliding, due to the large space formed by wall surfaces and nanoparticles. The findings in this paper would be beneficial for understanding the frictional behavior of a simple lubricant with or without nanoparticles addition in a small confinement.
Molecular dynamics simulation of crack propagation on different slip planes of BCC iron
Publisher: IEEE
Date: 02-2008
AFM and Ellipsometry Studies of Ultra Thin Ti Film Deposited on a Silicon Wafer
Publisher: Trans Tech Publications, Ltd.
Date: 11-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.773-774.616
Abstract: An ultra- thin Ti film with a thickness of less than 30 nm was deposited on the surface of a silicon wafer by the filtered arc deposition system. A novel technique was adopted to create a height step between the coated area and non-coated area (silicon wafer) during deposition. The surface morphology and thickness of the film was detected by atomic force microscopy (AFM). The AFM results showed that the deposited film formed a smooth structure on the silicon wafer and the height step between the coating and silicon wafer was clear enough to give the thickness of the deposited film. The composition of the deposited film was detected by a combined use of Ellipsometry and AFM. Natural oxidisation of Ti (TiO2) was found on the top of the Ti film after deposition, and the thickness of TiO2 was determined by ellipsometry to be about 0.6 nm.
In-situ interfacial tribochemistry toward eliminating red-scale of silicon steel in friction process
Publisher: Elsevier BV
Date: 03-2020
Investigating the corrosion-fatigue wear on CrN coated piston rings from laboratory wear tests and field trial studies
Publisher: Elsevier BV
Date: 08-2019
Effect of high pressure torsion process on the microhardness, microstructure and tribological property of Ti6Al4V alloy
Publisher: Elsevier BV
Date: 12-2021
Effect of Pyrolytic Carbon Interface Thickness on Conductivity and Tribological Properties of Copper Foam/Carbon Composite
Publisher: Springer Science and Business Media LLC
Date: 09-01-2021
Thin film lubrication of hexadecane confined by iron and iron oxide surfaces: A crucial role of surface structure
Publisher: AIP Publishing
Date: 22-10-2015
DOI: 10.1063/1.4933203
Abstract: A comparative analysis of thin film lubrication of hexadecane between different iron and its oxide surfaces has been carried out using classical molecular dynamic simulation. An ab initio force-field, COMPASS, was applied for n-hexadecane using explicit atom model. An effective potential derived from density functional theory calculation was utilized for the interfacial interaction between hexadecane and the tribo-surfaces. A quantitative surface parameterization was introduced to investigate the influence of surface properties on the structure, rheological properties, and tribological performance of the lubricant. The results show that although the wall-fluid attraction of hexadecane on pure iron surfaces is significantly stronger than its oxides, there is a considerable reduction of shear stress of confined n-hexadecane film between Fe(100) and Fe(110) surfaces compared with FeO(110), FeO(111), Fe2O3(001), and Fe2O3(012). It was found that, in thin film lubrication of hexadecane between smooth iron and iron oxide surfaces, the surface corrugation plays a role more important than the wall-fluid adhesion strength.
Investigation on mechanical properties of high speed steel roll material by nanoindentation
Publisher: Informa UK Limited
Date: 12-2013
Insights into the tribochemistry of sliding iron oxide surfaces lubricated by sodium silicate glasses: An ab initio molecular dynamics study
Publisher: Elsevier BV
Date: 10-2020
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