Unlocking the twinning stress: confidence inspiring light alloys

释放孪晶应力：激发信心的轻合金

• 批准号: DP140102355
• 负责人: Prof Matthew Barnett
• 金额: $ 25.17万
• 依托单位: Deakin University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-05-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP140102355
• 关键词: Unlocking; twinning; stress; confidence; inspiring

The ultimate aim of this research is to reduce fuel consumption through weight reduction. It will achieve this by increasing the performance of the lightest structural metal, magnesium. Contrary to the metals it typically replaces (steel and aluminium), magnesium fails via mechanisms that involve deformation twinning. Better understanding of twinning is needed to enhance performance and give automotive makers confidence to apply the metal more widely. The applicants have recently found evidence that a key missing piece of the puzzle is the role of plastic relaxation. The proposed work will use this idea to develop a new fundamental understanding of twinning using novel in-situ diffraction and modelling techniques.

这项研究的最终目的是通过减轻重量来减少燃料消耗。它将通过提高最轻的结构金属镁的性能来实现这一目标。与它通常取代的金属（钢和铝）相反，镁通过涉及变形孪晶的机制失效。需要更好地了解孪生，以提高性能，并使汽车制造商有信心更广泛地应用金属。申请人最近发现的证据表明，一个关键的失踪的一块拼图是塑料松弛的作用。拟议中的工作将利用这一想法，开发一个新的基本理解孪生使用新的原位衍射和建模技术。