Effect of Chromium and Manganese on the Formations of Graphite and Carbide on the surface of Low Carbon Sheet Steels. Surface graphite and surface carbide are two surface defects observed in cold-rolled low carbon steel sheets after batch annealing under non-oxidising atmosphere. The surface defects detract from the appearance of the steel sheets and diminish the surface treatment potential of the sheets, causing significant and costly material losses. The aims of the project are to study the in ....Effect of Chromium and Manganese on the Formations of Graphite and Carbide on the surface of Low Carbon Sheet Steels. Surface graphite and surface carbide are two surface defects observed in cold-rolled low carbon steel sheets after batch annealing under non-oxidising atmosphere. The surface defects detract from the appearance of the steel sheets and diminish the surface treatment potential of the sheets, causing significant and costly material losses. The aims of the project are to study the inhibition of surface graphite formation by the additions of Chromium and Manganese and to study the mechanism of formation of surface carbide with the aim of developing an alloying / processing strategy which eliminates both the surface graphite and the surface carbide.Read moreRead less
Understanding and minimising oxidation during hot rolling and metal coating of steel strip. Steel production is one of the few manufacturing industries in which Australia is internationally competitive. Annual steel exports generate about two billion dollars in national income. Substantial value is added to raw steel by hot rolling it into sheet and coating with zincalume and paint. The market for these products is intensely competitive, and continued success is critically dependent on produc ....Understanding and minimising oxidation during hot rolling and metal coating of steel strip. Steel production is one of the few manufacturing industries in which Australia is internationally competitive. Annual steel exports generate about two billion dollars in national income. Substantial value is added to raw steel by hot rolling it into sheet and coating with zincalume and paint. The market for these products is intensely competitive, and continued success is critically dependent on productivity and quality. This project will assist BlueScope Steel in understanding and controlling millscale development on hot rolled products, and avoiding scale defects in zincalume coating.Read moreRead less
Surface reaction kinetics of zinc gas relevant to the ZINCALUME coating process. The proposed project aims to develop a sound understanding of the mechanism and rate of condensation of zinc vapour on clean and partially oxidised steel strip surfaces. This Fundamental scientific knowledge is the key to furthering our understanding of the effect of process variables on the occurrence of pinholes and bare patches on ZINCALUME coated steel strip. Should the fundamental causes of defect formation be ....Surface reaction kinetics of zinc gas relevant to the ZINCALUME coating process. The proposed project aims to develop a sound understanding of the mechanism and rate of condensation of zinc vapour on clean and partially oxidised steel strip surfaces. This Fundamental scientific knowledge is the key to furthering our understanding of the effect of process variables on the occurrence of pinholes and bare patches on ZINCALUME coated steel strip. Should the fundamental causes of defect formation be established, product quality can be improved, process costs reduced and the Australian industry's competitive position in the market place retained. A new experimental approach will be taken; conductive to the training of the researchers involved in advanced research techniques.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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INVESTIGATION OF THE EFFECT OF ALLOYING ELEMENTS ON SHEAR BAND FORMATION DURING THE WARM ROLLING OF LOW CARBON AND INTERSTITIAL FREE STEELS. This proposal involves the application of three dimensional atom probe field ion microscopy and advanced transmission electron microscopy techniques to study the phenomena of precipitation and solute atoms' interactions with dislocations in warm rolled low carbon steels and interstitial free steels. It is intended to examine the effect of alloying addition ....INVESTIGATION OF THE EFFECT OF ALLOYING ELEMENTS ON SHEAR BAND FORMATION DURING THE WARM ROLLING OF LOW CARBON AND INTERSTITIAL FREE STEELS. This proposal involves the application of three dimensional atom probe field ion microscopy and advanced transmission electron microscopy techniques to study the phenomena of precipitation and solute atoms' interactions with dislocations in warm rolled low carbon steels and interstitial free steels. It is intended to examine the effect of alloying additions on in-grain shear bands formation, texture formation and formability of warm rolled and annealed low carbon steels. Ultimately, the project is concerned with developing of fundamental understanging of solute interactions which provide an improved basis for design of these economically significant steels.Read moreRead less
Competitive nucleation and growth during rapid solidification of steel. This research will assist in maintaining Australia at the forefront of research into strip casting of steel. Fundamental understanding and new modelling capabilities will help to promote the take-up of this energy/emission/cost efficient revolutionary process. It will furthermore provide, through the development of a novel experimental technique, new research capabilities for Australian researchers in other fields such as ra ....Competitive nucleation and growth during rapid solidification of steel. This research will assist in maintaining Australia at the forefront of research into strip casting of steel. Fundamental understanding and new modelling capabilities will help to promote the take-up of this energy/emission/cost efficient revolutionary process. It will furthermore provide, through the development of a novel experimental technique, new research capabilities for Australian researchers in other fields such as rapid solidification of advanced materials, e.g. hard magnets and thermoelectric alloys.Read moreRead less
Nanolayer Degradation Deposits on Cold Rolled Steel Strip: The Influence of Rolling Oil Emulsions in Sequential Oxidative and Reductive Environments. Cold rolled steel strip, produced by BHP Steel, is a precursor material for production of internationally recognised Australian products ZINCALUMER Steel and COLORBONDR Steel. Lubricating oils supplied by Quaker Chemical are used during the cold rolling process. When exposed to the direct fired annealing process, nanolayer surface residues can de ....Nanolayer Degradation Deposits on Cold Rolled Steel Strip: The Influence of Rolling Oil Emulsions in Sequential Oxidative and Reductive Environments. Cold rolled steel strip, produced by BHP Steel, is a precursor material for production of internationally recognised Australian products ZINCALUMER Steel and COLORBONDR Steel. Lubricating oils supplied by Quaker Chemical are used during the cold rolling process. When exposed to the direct fired annealing process, nanolayer surface residues can develop from rolling oil films and adversely affect subsequent steel surface wetting by the molten zinc alloy. This collaborative research project will investigate the fundamental nature of nanolayer residue formation, using advanced thermal and surface analysis techniques, with the aim of determining the factors influencing residue formation and reducing their impact.Read moreRead less