ORCID Profile
0000-0001-5046-9702
Current Organisations
Tongji University
,
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)
Materials Engineering | Metals and Alloy Materials | Numerical Modelling and Mechanical Characterisation | Other Physical Sciences | Manufacturing Processes and Technologies (excl. Textiles) | Pyrometallurgy | Analytical Spectrometry | Materials Engineering Not Elsewhere Classified | Physical Metallurgy | Materials Engineering not elsewhere classified | Nanoscale Characterisation | Condensed Matter Imaging | Instruments And Techniques |
ANZSRC Socio-Economic Objective (SEO)
Expanding Knowledge in the Physical Sciences | Expanding Knowledge in Engineering | Energy Conservation and Efficiency in Transport | Other | Basic Iron and Steel Products | Expanding Knowledge in the Chemical Sciences | Metals (composites, coatings, bonding, etc.) | Management of Solid Waste from Manufacturing Activities | Scientific instrumentation | Coated Metal and Metal-Coated Products
Related Links
Publications
Grain size, misorientation, and texture evolution of copper processed by equal channel angular extrusion and the validity of the Hall-Petch relationship
Publisher: Springer Science and Business Media LLC
Date: 05-2007
Progressive texture evolution during equal channel angular extrusion
Publisher: Elsevier BV
Date: 11-2006
Self-consistent modeling of texture evolution in TWIP steel during uniaxial tension
Publisher: Wiley
Date: 25-03-2014
A correlative approach to segmenting phases and ferrite morphologies in transformation-induced plasticity steel using electron back-scattering diffraction and energy dispersive X-ray spectroscopy
Publisher: Elsevier BV
Date: 12-2014
DOI: 10.1016/J.ULTRAMIC.2014.07.005
Abstract: Using a combination of electron back-scattering diffraction and energy dispersive X-ray spectroscopy data, a segmentation procedure was developed to comprehensively distinguish austenite, martensite, polygonal ferrite, ferrite in granular bainite and bainitic ferrite laths in a thermo-mechanically processed low-Si, high-Al transformation-induced plasticity steel. The efficacy of the ferrite morphologies segmentation procedure was verified by transmission electron microscopy. The variation in carbon content between the ferrite in granular bainite and bainitic ferrite laths was explained on the basis of carbon partitioning during their growth.
Shear texture gradient in AA6061 aluminum alloy processed by accumulative roll bonding with high roll roughness
Publisher: Elsevier BV
Date: 05-2014
Assessing phase discrimination: Via the segmentation of an elemental energy dispersive X-ray spectroscopy map: A case study of Bi2 Te3 and Bi2 Te2 S
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7RA08594J
Abstract: The present case study critically assesses the efficacy of a previously proposed segmentation methodology as a means to discriminate phases via post-processing the image of an elemental map.
Correcting intensity loss errors in the absence of texture-free reference samples during pole figure measurement
Publisher: Elsevier BV
Date: 08-2016
Texture Evolution during Annealing of Warm Rolled Cr-Containing Low Carbon Steels
Publisher: Trans Tech Publications Ltd.
Date: 15-10-2007
Stabilised mechanical properties in Ni-based Hastelloy C276 alloy by additive manufacturing under different heat inputs incorporated with active interlayer temperature control
Publisher: Elsevier BV
Date: 2023
Solid-State Bonding of Bulk PbTe to Nickel Electrode for Thermoelectric Modules
Publisher: American Chemical Society (ACS)
Date: 24-01-2018
Effect of annealing on the microstructure and mechanical properties of cold rolled Fe-24Mn-3Al-2Si-1Ni-0.06C TWIP steel
Publisher: Elsevier BV
Date: 04-2011
Texture evolution of cold rolled and annealed Fe-24Mn-3Al-2Si-1Ni-0.06C TWIP steel
Publisher: Elsevier BV
Date: 05-2011
Effect of isochronal annealing on the microstructure, texture and mechanical properties of a cold-rolled high manganese steel
Publisher: Elsevier BV
Date: 10-2018
Recrystallisation in a cold drawn low cost beta titanium alloy during rapid resistance heating
Publisher: Elsevier BV
Date: 02-2014
A comparative study of a NiTi alloy subjected to uniaxial monotonic and cyclic loading-unloading in tension using digital image correlation: The grain size effect
Publisher: Elsevier BV
Date: 03-2019
Recent progress on the study of the microstructure and mechanical properties of ECAE copper
Publisher: Springer Science and Business Media LLC
Date: 30-01-2007
Microstructure and texture evolution during equal channel angular extrusion of interstitial-free steel: Effects of die angle and processing route
Publisher: Elsevier BV
Date: 02-2007
A digital image correlation study of a NiTi alloy subjected to monotonic uniaxial and cyclic loading-unloading in tension
Publisher: Elsevier BV
Date: 05-2018
Application of Transmission Kikuchi Diffraction to a Multi-phase TRIP-TWIP Steel
Publisher: Elsevier BV
Date: 2015
Microstructure and Mechanical Properties of Interstitial Free Steel Subjected to Equal Channel Angular Extrusion
Publisher: Trans Tech Publications, Ltd.
Date: 08-2003
Evidencing extrinsic stacking faults in twinning-induced plasticity steel
Publisher: Elsevier BV
Date: 2017
Evolution of recrystallization texture in a 0.78wt.% Cr extra-low-carbon steel after warm and cold rolling
Publisher: Elsevier BV
Date: 07-2011
The effect of processing parameters on the microstructure and mechanical properties of low-Si transformation-induced plasticity steels
Publisher: Springer Science and Business Media LLC
Date: 04-01-0001
An Assessment of Bulk and Local Stored Energy Measurements in Ultrafine Grained Interstitial Free Steel
Publisher: Trans Tech Publications, Ltd.
Date: 2010
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.89-91.244
Abstract: The evolution of stored energy and associated thermal behaviour was investigated for an ultrafine grained Ti-IF steel severely deformed by Equal Channel Angular Pressing (ECAP) followed by cold rolling at ambient and liquid nitrogen temperatures. Bulk stored energy measurements by Differential Scanning Calorimetry (DSC) returned 350-600 whereas local stored energy estimates from microhardness, Electron Back-Scattering Diffraction (EBSD) and X-ray line profile analysis resulted in 5-140 . Higher bulk stored energy values correspond to the enthalpy release from all sources of strain in the material volume as well as Ti precipitation during annealing while the lower local stored energy range alludes only to dislocation content or internal stresses. An apparent activation energy of 500-550 suggests sluggish recrystallisation due to excess of Ti in solid solution.
A transmission kikuchi diffraction study of a cold-rolled and annealed Fe-17Mn-2Si-3Al-1Ni-0.06C wt% Steel
Publisher: Wiley
Date: 05-06-2015
An EBSD investigation of interstitial-free steel subjected to equal channel angular extrusion
Publisher: Elsevier BV
Date: 12-2008
Addressing Retained Austenite Stability in Advanced High Strength Steels
Publisher: Trans Tech Publications, Ltd.
Date: 2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.738-739.212
Abstract: Advances in the development of new high strength steels have resulted in microstructures containing significant volume fractions of retained austenite. The transformation of retained austenite to martensite upon straining contributes towards improving the ductility. However, in order to gain from the above beneficial effect, the volume fraction, size, morphology and distribution of the retained austenite need to be controlled. In this regard, it is well known that carbon concentration in the retained austenite is responsible for its chemical stability, whereas its size and morphology determines its mechanical stability. Thus, to achieve the required mechanical properties, control of the processing parameters affecting the microstructure development is essential.
A transmission Kikuchi diffraction study of cementite in a quenched and tempered steel
Publisher: Elsevier BV
Date: 04-2016
Microstructure and mechanical properties after annealing of equal-channel angular pressed interstitial-free steel
Publisher: Elsevier BV
Date: 06-2011
On the evolution and modelling of lattice strains during the cyclic loading of TWIP steel
Publisher: Elsevier BV
Date: 08-2013
Role of microstructure in susceptibility to hydrogen embrittlement of X70 microalloyed steel
Publisher: Trans Tech Publications, Ltd.
Date: 23-05-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.783-786.961
Abstract: The effect of phases and steel processing on hydrogen uptake (diffusible and residual), surface and internal damage were evaluated using optical and scanning electron microscopy. The results have shown the fastest formation of blisters in ferrite-pearlite microstructure of strip, followed by equaixed ferrite-pearlite microstructure in normalised condition, then by ferrite-bainite microstructure. No blistering was observed in heat affected zone s les for up to 24 hrs charging. Analysis of hydrogen-induced cracking using electron back scattering diffraction has revealed that crack propagation has predominantly intragranular character without a clear preference on {001}, {110}, {112} and {123} planes and is independent of the steel microstructure and prior processing.
The effect of processing parameters on the dynamic recrystallisation behaviour of API-X70 pipeline steel
Publisher: Elsevier BV
Date: 05-2013
Nucleation, coarsening and deformation accommodation mechanisms of ε-martensite in a high manganese steel
Publisher: Elsevier BV
Date: 07-2018
Microstructure evolution during isochronal annealing of a 42% cold rolled TRIP-TWIP steel
Publisher: IOP Publishing
Date: 07-08-2015
On the first direct observation of de-twinning in a twinning-induced plasticity steel
Publisher: Elsevier BV
Date: 09-2018
Annealing behaviour and mechanical properties of severely deformed interstitial free steel
Publisher: Elsevier BV
Date: 12-2011
Integrated multi-scale modeling of variant selection during stress-induced martensite formation in metastable β Ti-alloys
Publisher: Elsevier BV
Date: 11-2022
An in-situ neutron diffraction study of a multi-phase transformation and twinning-induced plasticity steel during cyclic loading
Publisher: AIP Publishing
Date: 27-04-2015
DOI: 10.1063/1.4919455
Abstract: In-situ neutron diffraction during cyclic tension-compression loading (∼+3.5% to −2.8%) of a 17Mn-3Al-2Si-1Ni-0.06C steel that exhibits concurrent transformation and twinning -induced plasticity effects indicated a significant contribution of intragranular back stresses to the observed Bauschinger effect. Rietveld analysis revealed a higher rate of martensitic transformation during tension compared to compression. Throughout cycling, α′-martensite exhibited the highest phase strains such that it bears an increasing portion of the macroscopic load as its weight fraction evolves. On the other hand, the ε-martensite strain remained compressive as it accommodated most of the internal strains caused by the shape misfit associated with the γ→ε and/or ε→α′ transformations.
Psychiatric disorders and subsequent risk of cardiovascular disease: a longitudinal matched cohort study across three countries
Publisher: Elsevier BV
Date: 07-2023
Evolution of microstructure and mechanical properties during annealing of cold rolled Fe-24Mn-3Al-2Si-1Ni-0.06C TWIP steel
Publisher: Trans Tech Publications, Ltd.
Date: 11-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.409.719
Abstract: TWinning Induced Plasticity (TWIP) steels have been recently developed as a promising material for automotive applications. In the present work the recrystallisation behaviour of 42% cold-rolled Fe-24Mn-3Al-2Si-1Ni-0.06C TWIP steel was investigated during isochronal annealing for 300s via microhardness testing, Electron Back-Scattering Diffraction (EBSD) and uniaxial tensile testing. EBSD internal misorientation data corroborates recrystallised fraction estimates from microhardness measurements. Annealing twins play an important role during recrystallisation by bulging at the deformed grain boundaries during nucleation and generating twin related orientations. During uniaxial tension, the recovered condition recorded three work hardening regions while all partially recrystallised s les exhibited four regions. A modified Hollomon scheme is suggested to account for the effect of strain on microstructure refinement.
Microtexture analysis of cold-rolled and annealed twinning-induced plasticity steel
Publisher: Elsevier BV
Date: 09-2011
Texture Development in Interstitial Free (IF) Steel Subjected to Two Cycles of Equal Channel Angular Extrusion
Publisher: Trans Tech Publications, Ltd.
Date: 09-2005
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.495-497.809
Abstract: Texture development and grain refinement of interstitial-free (IF) steel as a function of ideal simple shear or torsion was undertaken for up to 8 pressings, Route BC. Dominant texture components evolved after a single pass and remained correspondent for all subsequent passes. End-cycle (4 and 8 pass) orientation distribution functions (ODFs) showed an increased spread of contour levels and the re-appearance of texture components similar to the 0-pass condition. Rotation of torsion components away from their ideal pole figure (PF) orientations increased at mid-cycle and decreased to almost equivalent levels after end-cycle passes. This is attributed to the principle slip directions of BCC structures aligning with the shear direction.
The crystallography of carbide-free bainites in thermo-mechanically processed low Si transformation-induced plasticity steels
Publisher: Elsevier BV
Date: 12-2014
The effect of β-phase condition on the tensile behaviour in a near-β Ti alloy produced by blended elemental powder metallurgy
Publisher: Elsevier BV
Date: 02-2019
The Hall-Petch Relationship in Interstitial-Free Steel Processed by Equal Channel Angular Extrusion
Publisher: Springer London
Date: 2009
Slip system activity and lattice rotation in polycrystalline copper during uniaxial tension
Publisher: Elsevier BV
Date: 05-2022
Self-consistent modelling of lattice strains during the in-situ tensile loading of twinning induced plasticity steel
Publisher: Elsevier BV
Date: 2014
Cardiovascular disease and subsequent risk of psychiatric disorders: a nationwide sibling-controlled study
Publisher: eLife Sciences Publications, Ltd
Date: 21-10-2022
DOI: 10.7554/ELIFE.80143
Abstract: The association between cardiovascular disease (CVD) and selected psychiatric disorders has frequently been suggested while the potential role of familial factors and comorbidities in such association has rarely been investigated. We identified 869,056 patients newly diagnosed with CVD from 1987 to 2016 in Sweden with no history of psychiatric disorders, and 910,178 full siblings of these patients as well as 10 in idually age- and sex-matched unrelated population controls ( N = 8,690,560). Adjusting for multiple comorbid conditions, we used flexible parametric models and Cox models to estimate the association of CVD with risk of all subsequent psychiatric disorders, comparing rates of first incident psychiatric disorder among CVD patients with rates among unaffected full siblings and population controls. The median age at diagnosis was 60 years for patients with CVD and 59.2% were male. During up to 30 years of follow-up, the crude incidence rates of psychiatric disorder were 7.1, 4.6, and 4.0 per 1000 person-years for patients with CVD, their siblings and population controls. In the sibling comparison, we observed an increased risk of psychiatric disorder during the first year after CVD diagnosis (hazard ratio [HR], 2.74 95% confidence interval [CI], 2.62–2.87) and thereafter (1.45 95% CI, 1.42–1.48). Increased risks were observed for all types of psychiatric disorders and among all diagnoses of CVD. We observed similar associations in the population comparison. CVD patients who developed a comorbid psychiatric disorder during the first year after diagnosis were at elevated risk of subsequent CVD death compared to patients without such comorbidity (HR, 1.55 95% CI, 1.44–1.67). Patients diagnosed with CVD are at an elevated risk for subsequent psychiatric disorders independent of shared familial factors and comorbid conditions. Comorbid psychiatric disorders in patients with CVD are associated with higher risk of cardiovascular mortality suggesting that surveillance and treatment of psychiatric comorbidities should be considered as an integral part of clinical management of newly diagnosed CVD patients. This work was supported by the EU Horizon 2020 Research and Innovation Action Grant (CoMorMent, grant no. 847776 to UV, PFS, and FF), Grant of Excellence, Icelandic Research Fund (grant no. 163362-051 to UV), ERC Consolidator Grant (StressGene, grant no. 726413 to UV), Swedish Research Council (grant no. D0886501 to PFS), and US NIMH R01 MH123724 (to PFS).
On the evolution and modelling of brass-type texture in cold-rolled twinning-induced plasticity steel
Publisher: Elsevier BV
Date: 05-2014
An in-situ synchrotron study of the B2→B19′ phase transformation in a Ni-Ti alloy subjected to uniaxial monotonic tension
Publisher: Elsevier BV
Date: 2019
Recent progress on the study of the microstructure and mechanical properties of ECAE copper (Journal of Materials Science 42:5 (1622-1637) DOI:10.1007/s10853-006-1283-1)
Publisher: Springer Science and Business Media LLC
Date: 05-2008
An in-situ electron backscattering diffraction and viscoplastic self-consistent study of OFHC copper subjected to uniaxial tension
Publisher: Elsevier BV
Date: 07-2021
Microstructure evolution and alloying elements distribution between the phases in powder near-b titanium alloys during thermo-mechanical processing
Publisher: Springer Science and Business Media LLC
Date: 26-06-2012
Effect of Uniaxial Tension on the Microstructure and Texture of High Mn Steel
Publisher: Wiley
Date: 10-09-2018
Effect of processing route on microstructure and texture development in equal channel angular extrusion of interstitial-free steel
Publisher: Elsevier BV
Date: 02-2006
Fracture mechanisms in rails with mechanically and thermomechanically-induced white etching layers under three-point bending
Publisher: Elsevier BV
Date: 2022
Self-consistent modelling of TWIP steel during uniaxial tensile loading
Publisher: Trans Tech Publications, Ltd.
Date: 23-05-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.783-786.732
Abstract: The Visco-Plastic (VPSC) and Elasto-Plastic (EPSC) Self-Consistent models were applied to simulate the macroscopic stress-strain response and the evolution of crystallographic texture during the tensile loading of a fully annealed Fe-24Mn-3Al-2Si-1Ni-0.06C TWIP steel. Bulk texture measurements acquired by X-ray diffraction were used to validate the modelling results. Various modelling constructs were employed to assess the contribution of twinning and latent hardening to the texture evolution. The simulations revealed the dominant role of perfect slip and the limited effect of twinning on texture development as well as a possible role for latent hardening. Comparison between the texture predictions of the VPSC and EPSC models underscored the correlation between the latent hardening effects and the employed grain interaction scheme.
On the feasibility of twinning nucleation via extrinsic faulting in twinning-induced plasticity steel
Publisher: Elsevier BV
Date: 03-2013
EBSD observations of recrystallisation and tensile deformation in twinning induced plasticity steel
Publisher: Springer Science and Business Media LLC
Date: 04-07-2013
On the feasibility of partial slip reversal and de-twinning during the cyclic loading of TWIP steel
Publisher: Elsevier BV
Date: 11-2016
An in situ synchrotron study of the localized B2↔B19′ phase transformation in an Ni–Ti alloy subjected to uniaxial cyclic loading–unloading with incremental strains
Publisher: International Union of Crystallography (IUCr)
Date: 18-02-2020
DOI: 10.1107/S1600576720000370
Abstract: High-resolution in situ synchrotron X-ray diffraction was applied to study a cold-drawn and solution-treated 56Ni–44Ti wt% alloy subjected to uniaxial cyclic loading–unloading with incremental strains. The micro-mechanical behaviour associated with the partial and repeated B2↔B19′ phase transformation at the centre of the s le gauge length was studied with respect to the macroscopic stress–strain response. The lattice strains of the (110) B2 and different B19′ grain families are affected by (i) the transformation strain, the load-bearing capacity of both phases and the strain continuity maintained at/near the B2–B19′ interfaces at the centre of the gauge length, and (ii) the extent of transformation along the gauge length. With cycling and incremental strains (i) the elastic lattice strain and plastic strain in the remnant (110) B2 grain family gradually saturate at early cycles, whereas the plastic strain in the B19′ phase continues to increase. This contributes to accumulation of residual strains (degradation in superelasticity), greater non-linearity and change in the shape of the macroscopic stress–strain curve from plateau type to curvilinear elastic. (ii) The initial 〈111〉 B2 fibre texture transforms to [ 1 20] B19′ , [ 1 30] B19′ , [ 1 50] B19′ and [010] B19′ orientations. Further increase in the applied strain with cycling results in the development of [130] B19′ , [ 1 02] B19′ , [102] B19′ , [ 1 00] B19′ and [100] B19′ orientations.
Stored energy of a severely deformed interstitial free steel
Publisher: Elsevier BV
Date: 10-2009
Effect of iron content on sintering behavior of Ti-V-Fe-Al near-β titanium alloy
Publisher: Springer Science and Business Media LLC
Date: 08-09-2012
Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension
Publisher: Elsevier BV
Date: 04-2013
Development of High Current Capacity Mono-and 18-Filament in situ MgB2 Cables by Varying the Twist Pitch
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 10-2014
Texture Evolution during Recrystallisation of Cold Rolled TWIP Steel
Publisher: Trans Tech Publications, Ltd.
Date: 12-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.702-703.647
Abstract: A TWinning Induced Plasticity (TWIP) steel was cold rolled to 42% thickness reduction followed by isochronal annealing for 300 s between 600-850 °C. Bulk texture evolution during recrystallisation was investigated by X-Ray Diffraction. While the development of the α-fibre after cold rolling is typical of low stacking fault energy materials, anomalously higher intensities were noted for the Goss ({110}) compared to Brass ({110}) orientations. Upon recrystallisation, the main rolling texture components were retained and ascribed to nucleation at orientations close to those of the deformed matrix followed by annealing twinning which leads to crystallographically identical variants. Unlike previous texture investigations on austenitic steels, the relatively homogeneous deformation microstructure and uniform distribution of subsequent nucleation sites led to the retention of the F ({111}) orientation. Moreover, the firsthand observation of the Rotated Copper ({112}) orientation in TWIP steel is attributed to the second order twinning of the A ({110}) orientation.
Investigation into the viability of K-TIG for joining armour grade quenched and tempered steel
Publisher: Elsevier BV
Date: 04-2018
Microstructure and micro-texture evolution during the dynamic recrystallisation of a Ni-30Fe-Nb-C model alloy
Publisher: Elsevier BV
Date: 12-2016
Evolution of Microstructure During the In Situ Heating of 42 Pct Cold-Rolled High Mn Steel
Publisher: Springer Science and Business Media LLC
Date: 19-11-2019
Transmission Kikuchi diffraction versus electron back-scattering diffraction: A case study on an electron transparent cross-section of TWIP steel
Publisher: Elsevier BV
Date: 12-2017
DOI: 10.1016/J.MICRON.2017.09.008
Abstract: The present case study compares transmission Kikuchi diffraction (TKD) with electron back-scattering diffraction (EBSD) on the same area of an electron transparent cross-section of a twinning induced plasticity steel. While TKD expectedly provides better clarity of internal defect substructures in the band contrast map, EBSD returns orientation data that approaches the quality of the TKD map. This was rationalised by Monte Carlo simulations of the electron energy spreads, which showed that due to the geometry-based compromises associated with adapting a conventional EBSD detector (which is off-axis with respect to the incident electron beam) to TKD, a broadening in the electron energy distribution of the forward-scattered electrons collected on the detector phosphor screen, is unavoidable. In this circumstance, the values of the full-widths at half-maximum of the energy distributions for TKD and EBSD are of the same order. It follows that EBSD on electron transparent cross-sections may be a viable alternative to TKD when: (i) conventional EBSD detectors are adapted to TKD and, (ii) s le microstructures comprise features whose sizes do not mandate the application of TKD.
Microstructure and texture evolution of bcc and fcc metals subjected to equal channel angular extrusion
Publisher: Elsevier BV
Date: 2006
Mechanical, microstructure and texture properties of interstitial-free steel and copper subjected to equal channel angular extrusion and cold-rolling
Publisher: IOP Publishing
Date: 07-2010
Effect of cold rolling on as-ECAP interstitial free steel
Publisher: Springer Science and Business Media LLC
Date: 17-11-2011
A re-evaluation of The micromechanics of twinning in a TWIP steel
Publisher: Elsevier BV
Date: 2016
Effect of processing schedule on the microstructure and texture of 0.78 wt% Cr extra-low-carbon steel
Publisher: Iron and Steel Institute of Japan
Date: 2008
Experimental and Self-Consistent Modeling Study of De-twinning in a Twinning-Induced Plasticity Steel
Publisher: Springer Science and Business Media LLC
Date: 20-02-2019
Effect of Annealing on the Microstructure, Texture and Mechanical Properties of Severely Deformed Interstitial Free Steel
Publisher: Trans Tech Publications, Ltd.
Date: 2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.706-709.1817
Abstract: Ti-stabilised interstitial free (IF) steel initially subjected to 8 passes, route B C equal channel angular pressing (ECAP) was further cold rolled (CR) at room temperature to 95% thickness reduction. Both s les were isothermally annealed at 710 °C following which their microstructures and micro-textures were compared via electron back-scattering diffraction (EBSD). The mechanical properties first obtained by shear punch testing (SPT) were later corroborated by uniaxial tensile tests. In the case of the ECAP material, continuous recrystallisation is followed by abnormal growth at prolonged annealing times with minor increases in high angle boundary (HAGB) fraction. On the other hand, the additionally CR material shows continuous recrystallisation accompanied by a reduction in the HAGB fraction. After 15 s annealing, the ECAP and CR s les exhibit a good strength-ductility balance which corresponds to ~52% and ~67% softening, respectively.
Twins or the omega phase: Which is it in high carbon steels?
Publisher: Elsevier BV
Date: 09-2020
Stress-Induced Twinning and Phase Transformations during the Compression of a Ti-10V-3Fe-3Al Alloy
Publisher: Springer Science and Business Media LLC
Date: 29-07-2017
NSAID use and unnatural deaths after cancer diagnosis: a nationwide cohort study in Sweden
Publisher: Springer Science and Business Media LLC
Date: 17-01-2022
DOI: 10.1186/S12885-021-09120-9
Abstract: Cancer patients experience increased risk of death from accident and suicide. Cognitive impairment induced by cancer-related inflammation and stress-related psychiatric symptoms may be underlying mechanisms. We therefore studied the association between use of nonsteroidal anti-inflammatory drugs (NSAIDs) and risk of these outcomes. Following a cohort of 388,443 cancer patients diagnosed between October 2005 and December 2014 in Sweden, we ascertained dispense of aspirin or non-aspirin NSAIDs from 3 months before cancer diagnosis onward and defined the on-medication period as from date of drug dispense until the prescribed dosage was consumed. Follow-up time outside medicated periods and time from unexposed patients were defined as off-medication periods. We used Cox models to estimate hazard ratios (HRs) of death due to suicide or accident, by comparing the on-medication periods with off-medication periods. In total, 29.7% of the cancer patients had low-dose aspirin dispensed and 29.1% had non-aspirin NSAIDs dispensed. Patients with aspirin use were more likely to be male than patients without aspirin use. Compared with off-medication periods, there was a 22% lower risk of accidental death ( N = 651 HR 0.78, 95% confidence interval [CI]: 0.70 to 0.87) during on-medication periods with aspirin. The use of aspirin was not associated with risk of suicide ( N = 59 HR 0.96, 95% CI: 0.66 to 1.39). No association was noted between use of non-aspirin NSAIDs and the risk of suicide ( N = 13 HR 0.95, 95% CI: 0.42 to 2.18) or accidental death (N = 59 HR 0.92, 95% CI: 0.68 to 1.26). Intake of low-dose aspirin after cancer diagnosis was associated with a lower risk of unnatural deaths among cancer patients.
Habit plane determination from reconstructed parent phase orientation maps
Publisher: Elsevier BV
Date: 08-2023
Multiscale in-situ studies of strain-induced martensite formation in inter-critically annealed extra-low-carbon martensitic stainless steel
Publisher: Elsevier BV
Date: 11-2021
Atom probe analysis of clusters and precipitates in severely deformed and annealed interstitial free steel
Publisher: Informa UK Limited
Date: 04-2011
Microstructure Development and Alloying Elements Diffusion during Sintering of Near-β Titanium Alloys
Publisher: Trans Tech Publications, Ltd.
Date: 08-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/KEM.520.49
Abstract: Two near-β alloys, Ti-5Al-5Mo-5V-2Cr-1Fe and Ti-10V-3Fe-3Al, were produced by the blended element powder metallurgy technique. The use of (i) elemental powders with the Al-V master alloy in the case of Ti-5Al-5Mo-5V-2Cr-1Fe and, (ii) the complex Al-Fe-V master alloy in Ti-10V-3Fe-3Al has highlighted the influence of different alloying elements and their combination on microstructure evolution and chemical homogenisation. While Fe has the fastest diffusivity in Ti and its addition improves the density of both sintered alloys it also results in accelerated rates of grain coarsening. The combination of Al and V in the master alloy powder inhibits the diffusion of V into the Ti matrix. The unexpectedly slow diffusion of Cr at the early sintering stage in Ti-5Al-5Mo-5V-2Cr-1Fe was attributed to the formation of surface oxides on the Cr powders.
Recrystallisation Behaviour of Low Carbon Steel with and without Addition of Chromium
Publisher: Trans Tech Publications, Ltd.
Date: 04-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.715-716.679
Abstract: The effects of 0.74wt% Cr addition on the recrystallisation kinetics of low carbon (LC) steel was investigated using Vickers hardness testing, optical metallography and Electron Back-Scattering Diffraction (EBSD). Compared to the unalloyed steel, Cr addition significantly delays the time for recrystallisation and increases the JMAK pre-exponential factor ( k ) by an order of magnitude. During initial softening, EBSD returned similar orientations for nucleated and growing grain fractions in both steels. However with longer annealing times the micro-texture of recrystallised grains differs from their earlier counterparts. Overall, the effect of fine Cr carbides on grain boundary mobility in the LC-Cr steel causes variations in recrystallisation kinetics, grain morphology and micro-textures.
Investigation of the effect of electrolytic hydrogen charging of X70 steel: II. Microstructural and crystallographic analyses of the formation of hydrogen induced cracks and blisters
Publisher: Elsevier BV
Date: 07-2016
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