transformations in Fe-C alloys: From atomistic simulations to a microscopic
主 讲 人:
Dr. Xie Zhang
（Materials Department, University of California, Santa
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.
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.