西南交通大学“创源”大讲堂研究生学术讲座

讲座时间： 2018年9月26日(周三)，上午10:30-11:15

讲座地点：九里校区行政楼222会议室

讲座题目：Structural transformations in Fe-C alloys: From atomistic simulations to a microscopic understanding

主  讲 人： Dr. Xie  Zhang

（Materials Department, University of California, Santa Barbara xiezhang@ucsb.edu https://www.mrl.ucsb.edu/~vandewalle/group.php）

个人简介： Dr. Xie Zhang performed his Ph.D. with Prof. J?rg Neugebauer from 2012 to 2015 at the Max-Planck-Institut für Eisenforschung (MPIE) in Germany, during which he focused on understanding the relationship between structural transformations and mechanical performance in advanced steels based on ab initio and atomistic simulations. Afterwards, he continued working as a postdoctoral researcher at MPIE on interfaces in Fe-based alloys till the end of 2016. Since January 2017, he joined the Materials Department at the University of California, Santa Barbara, working as a postdoctoral researcher with Prof. Chris G. Van de Walle on the development of advanced electronic materials, such as hybrid perovskites.

讲座内容：

Structural transformations at the atomic scale are decisive for the nucleation and evolution of diverse microstructures that govern the mechanical performance of materials on the engineering, i.e., macroscopic scale. However, even if we consider one of the most widely used and mature materials, namely, steels, our understanding of these connections is still rather limited. In the present talk, I will focus on atomistic simulations of various structural transformations in Fe-C alloys in order to reveal the mechanisms behind these transformations on the most fundamental, i.e., atomistic level and how they trigger the formation of some of the most important microstructures in steels. These insights are crucial for tailoring microstructure and provide theoretical guidance for developing ultra-high performance steels.

主办：研究生院

承办：力学与工程学院