New Wrought Magnesium Alloys: Manipulating the Annealed Microstructure. One of the main impediments to increased use of wrought magnesium is its characteristic but mediocre mechanical properties. The proposed work paves the way for new improved wrought magnesium alloys by determining how the constituent nano-structures, micro-structures and deformation conditions can be manipulated to control the evolution of properties during annealing. The project will deliver mathematical models describing th ....New Wrought Magnesium Alloys: Manipulating the Annealed Microstructure. One of the main impediments to increased use of wrought magnesium is its characteristic but mediocre mechanical properties. The proposed work paves the way for new improved wrought magnesium alloys by determining how the constituent nano-structures, micro-structures and deformation conditions can be manipulated to control the evolution of properties during annealing. The project will deliver mathematical models describing the annealed microstructure and mechanical properties. The work will also explore the potential of a recent discovery made by the CI of a simple technique to randomise the alignment of the annealed atomic lattice structure, which promises to markedly improve formability.Read moreRead less
Modelling twinning transitions in light metals: a new foundation for alloy and process development. Australia's quest to become a world leader in light metals technology is being held back by a lack of quantitative understanding of the metallurgical behaviour of magnesium, which is the lightest engineering metal, and titanium, which is the strongest light metal. In particular, there is poor knowledge of the influence of material parameters on deformation twinning. This knowledge is vital for eff ....Modelling twinning transitions in light metals: a new foundation for alloy and process development. Australia's quest to become a world leader in light metals technology is being held back by a lack of quantitative understanding of the metallurgical behaviour of magnesium, which is the lightest engineering metal, and titanium, which is the strongest light metal. In particular, there is poor knowledge of the influence of material parameters on deformation twinning. This knowledge is vital for efficient production and optimised alloy and part design. This proposal aims to develop a quantitative understanding of transitions in twinning activation for improved performance in fatigue, crash behaviour, structural integrity, forming, forging, extruding, hot rolling and annealing.Read moreRead less
ENHANCED PERFORMANCE OF AUTOMOTIVE SHEET ALLOYS VIA CONTROL OF COMPOSITION, THERMAL PROCESSING AND NANOSTRUCTURE. This project involves characterisation using modern facilities of the form and identity of atomic-scale clusters of alloying elements in selected automotive sheet alloys that have been subjected to single and multiple ageing treatments and examination and modelling of deformation mechanisms and behaviour in such alloys. The aim is to establish the precise role of clusters of solute a ....ENHANCED PERFORMANCE OF AUTOMOTIVE SHEET ALLOYS VIA CONTROL OF COMPOSITION, THERMAL PROCESSING AND NANOSTRUCTURE. This project involves characterisation using modern facilities of the form and identity of atomic-scale clusters of alloying elements in selected automotive sheet alloys that have been subjected to single and multiple ageing treatments and examination and modelling of deformation mechanisms and behaviour in such alloys. The aim is to establish the precise role of clusters of solute atoms and vacancies in the formation of precipitate phases that control the final strength and deformation behaviour of the alloys, and to provide useful guidelines for further improvements in strength of these alloys via the control of alloy composition and of multiple ageing treatments.Read moreRead less
A Microstructure Based Approach to Steel Design for Improved Crash Performance. There is a continual need for the automotive industry to develop vehicles with increased fuel efficiency and safety. This research will establish how different types of new advanced steels can contribute to improved crash worthiness, while also helping to increase fuel efficiency through lighter weight. This will lead to the development of new steels that offer even better crash performance while also providing more ....A Microstructure Based Approach to Steel Design for Improved Crash Performance. There is a continual need for the automotive industry to develop vehicles with increased fuel efficiency and safety. This research will establish how different types of new advanced steels can contribute to improved crash worthiness, while also helping to increase fuel efficiency through lighter weight. This will lead to the development of new steels that offer even better crash performance while also providing more realistic computer models for car designers.Read moreRead less
Texture enhancement by inoculation in strip-cast metallic sheet. A recent discovery by the applicants has shown the possibility of producing, by inoculation during a direct casting route, stainless steel strip that exhibits a remarkably strong crystallographic alignment of grains perpendicular to the sheet surface. The production of this so-called <001>//ND fibre texture in thin strip by direct casting represents a vastly simplified route for the possible production of iron-base strip suitable f ....Texture enhancement by inoculation in strip-cast metallic sheet. A recent discovery by the applicants has shown the possibility of producing, by inoculation during a direct casting route, stainless steel strip that exhibits a remarkably strong crystallographic alignment of grains perpendicular to the sheet surface. The production of this so-called <001>//ND fibre texture in thin strip by direct casting represents a vastly simplified route for the possible production of iron-base strip suitable for some magnetic applications. The principle aims of the project are to elucidate the mechanisms of formation of this highly textured steel sheet and to explore the feasibility of reproducing the texture in other metallic systems.Read moreRead less
Optimising the Formability of Strip-Cast Low Carbon Steel. Recent advances in strip casting of low carbon steel have the potential for producing formable sheet products at a fraction of the cost of conventional slab casting and secondary processing. The aim of the project is to develop a deeper understanding of the effect of solidification microstructure of strip-cast steel on the development of microstructure and texture following cold rolling and annealing in an attempt to improve the formabi ....Optimising the Formability of Strip-Cast Low Carbon Steel. Recent advances in strip casting of low carbon steel have the potential for producing formable sheet products at a fraction of the cost of conventional slab casting and secondary processing. The aim of the project is to develop a deeper understanding of the effect of solidification microstructure of strip-cast steel on the development of microstructure and texture following cold rolling and annealing in an attempt to improve the formability of the final strip product. The project is also expected to produce an outstanding Australian researcher relevant to industry with expertise in ferrous physical metallurgy.Read moreRead less
An Integrated Thermal and Structural Investigation for the Development of Innovative Lightweight Cold-formed Steel Wall and Floor Systems under Fire Conditions. This research will benefit the Australian building industry by providing a set of design rules that will not only enhance the fire safety standards but also the structural robustness of steel construction, thereby resulting in a reduction in loss of lives and property due to natural or man-made disasters. This will give Australian manufa ....An Integrated Thermal and Structural Investigation for the Development of Innovative Lightweight Cold-formed Steel Wall and Floor Systems under Fire Conditions. This research will benefit the Australian building industry by providing a set of design rules that will not only enhance the fire safety standards but also the structural robustness of steel construction, thereby resulting in a reduction in loss of lives and property due to natural or man-made disasters. This will give Australian manufacturers a leading edge both nationally and internationally in developing innovative prefabricated fire resistant LSF wall and floor systems using high strength steels. Australians have an opportunity to become world leaders in fire research and LSF construction. It will provide valuable research training to young Australians and will contribute to the protection of Australia's critical infrastructure.Read moreRead less
New Generation Pipeline and Q&T Plate Steels. If successful, the progressive reformulation of the alloy design of a new family of steels would enhance their properties, greatly reduce the complexity of manufacture, ensure more efficient steelmaking production practices and enable the full capacity of the domestic pipe mills and plate manufacturing facilities to be realised. This innovative and new approach opens up opportunities for market growth and export potential in areas of fundamental impo ....New Generation Pipeline and Q&T Plate Steels. If successful, the progressive reformulation of the alloy design of a new family of steels would enhance their properties, greatly reduce the complexity of manufacture, ensure more efficient steelmaking production practices and enable the full capacity of the domestic pipe mills and plate manufacturing facilities to be realised. This innovative and new approach opens up opportunities for market growth and export potential in areas of fundamental importance to Australia's infrastructure and mining industries and defence capability. Implementation of this newly developed technology would, for the first time, create export market opportunities for Australian pipe manufacturers.
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Dynamic recrystallization and preferred orientation in ultra-thin steel-strip under conditions of fluctuating temperature and stress. We aim to develop a sound understanding of the origins of ridge-buckle defects in flat-rolled steel sheet and to train researchers in advanced techniques. By studying dynamic recrystallisation and texture formation, not of the bulk, but of isolated pockets of material within the bulk that are subject to fluctuating conditions of temperature and stress, defect form ....Dynamic recrystallization and preferred orientation in ultra-thin steel-strip under conditions of fluctuating temperature and stress. We aim to develop a sound understanding of the origins of ridge-buckle defects in flat-rolled steel sheet and to train researchers in advanced techniques. By studying dynamic recrystallisation and texture formation, not of the bulk, but of isolated pockets of material within the bulk that are subject to fluctuating conditions of temperature and stress, defect formation will be related to the intricate interplay between rolling dynamics and microstructural development. Through this new approach a scientifically founded quantitative model should emerge so that defect occurrence can be forecasted, preventative action predicted and industry's competitive position be retained. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775656
Funder
Australian Research Council
Funding Amount
$490,000.00
Summary
High Rate Testing System for Materials and Structures. Human or natural disasters such as terrorist attack or tsunami take place and they have catastrophic consequences, in terms of fatalities and psyche of fear among the population, as well as enormous financial loss. Vehicle accident is another example. In Australia, 1636 people were killed in 1481 road crashes, in 2005 alone. There is a great demand for research into devising novel materials and structures for optimum performance under such c ....High Rate Testing System for Materials and Structures. Human or natural disasters such as terrorist attack or tsunami take place and they have catastrophic consequences, in terms of fatalities and psyche of fear among the population, as well as enormous financial loss. Vehicle accident is another example. In Australia, 1636 people were killed in 1481 road crashes, in 2005 alone. There is a great demand for research into devising novel materials and structures for optimum performance under such circumstances. The proposed new high rate testing system will significantly advance research in this area. The facility will directly support a range of research projects in material and structural design in military and civil vehicles, aerospace industry and defence.Read moreRead less