Unlocking the twinning stress: confidence inspiring light alloys

这项研究的最终目的是通过减轻重量来降低燃油消耗。它将通过提高最轻的结构金属镁的性能来实现这一点。与通常取代的金属(钢和铝)相反，镁通过变形孪生机制失效。需要更好地了解孪生现象，以提高性能，并让汽车制造商有信心更广泛地应用这种金属。申请者最近发现的证据表明，这个谜题中缺失的一个关键部分是塑料松弛的作用。这项拟议的工作将利用这一想法，利用新的原位衍射和建模技术来发展对孪生的新的基本理解。

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.