Lightweight Automobile Structures Using High Strength and High Ductility Nanostructured Metals
New materials and structures with atomic,nano-,micro- and macro-scale functional gradients for generating different toughening mechanisms using the strain non-localization approach are developed.A significant enhancement of selective surface reaction kinetics in the nanostructured surface layer in iron has been observed after Surface Mechanical Attrition Treatment (SMAT) with significant improvement of properties1～2.By combining SMAT and diffusion based treatments,we have created a new category of interface free nanomaterials with a gradient structure of nano-to-micro sized grains,which resulted in remarkable wear,corrosion,mechanical properties,such as high yield strength and good ductility.We also developed SMAT to obtain high strength and high ductility metallic glasses using and developed new methodologies of investigation of mechanical behaviors of ultrahigh strength materials as a function of atomic structures3～5.
LU Jian
Center for Advanced Structure Materials, City University of Hong Kong, Hong Kong, China
国际会议
成都
英文
749-749
2016-11-16（万方平台首次上网日期，不代表论文的发表时间）