Large-volume gradient materials: Manufacturing and deformation mechanism

该项目旨在开发一种低成本、高生产率的工艺，以生产适合于工程应用的高强度和良好延展性的大体积金属。超细晶(UFG)材料和纳米晶(NG)材料通常很强，但延展性不是很好。本项目将使用累积平整轧制(ASPR)技术来制备具有梯度结构的金属带材。该项目开发的数值模拟有望有助于理解梯度材料的变形机理。

This project aims to develop a low-cost and high productivity process to produce large-volume metals with high strength and good ductility, suitable for engineering application. Ultrafine grained (UFG) materials and nano-grained (NG) materials are usually strong, but not very ductile. This project will use an accumulative skin-pass rolling (ASPR) technique to fabricate the metallic strips with gradient structure. The numerical simulations developed in the project are expected to contribute to understanding the deformation mechanism of gradient materials.