题目：Multiscale Computational Study of the Mechanics of Pure Magnesium and Magnesium Alloys
主讲人：WU Zhaoxuan (香港城市大学 助理教授)
日期： 2019年05月29日（星期三）
时间： 11：00-12：00
地点：国家超级计算广州中心1楼会议室101
主持：杜云飞 教授
摘要：Magnesium (Mg) is the lightest structural metal and is particularly attractive to the automotive, aerospace and biomedical industries. However, pure Mg has low ductility, low fracture toughness and is susceptible to cleavage fracture. In this talk, Prof. Wu will demonstrate a multi-scale computational approach, combining density functional theory(DFT) calculations, atomistic simulations and mechanistic theories, to (i) establish the fundamental mechanics properties of Mg and (ii) design ductile Mg alloys, and develop a mechanistic theory to capture the critical plasticity-controlling mechanisms, essential solute mechanics and chemistry effects on them, and predict the conditions for ductility as a function of Mg alloy compositions.
个人介绍：Zhaoxuan Wu is Assistant Professor in the department of Materials Science and Engineering, City University of Hong Kong. He is currently studying plasticity, fracture behaviours and alloying effects in hcp metals and Al alloys. Dr. Wu has published more than 20 papers in various scientific journals such as Science, Nature and PNAS. He received the Outstanding Reviewer Award 2016 for Acta Materialia from Elsevier.