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The relation between two ductility mechanisms for Mg alloys revealed by high-throughput simulations...

by Zongrui Pei, Junqi Yin
Publication Type
Journal
Journal Name
Materials & Design
Publication Date
Page Number
108286
Volume
182
Issue
TBD

Understanding the deformation mechanisms of Mg has been a long-standing and significant problem for materials scientists. Currently, there are two widely acknowledged ductility-improving mechanisms, i.e., the dislocation nucleation mechanism and dislocation mobility mechanism. Since the two mechanisms were previously investigated using very different solute sets, hitherto there is no clear understanding of the relation between them. Based on the newly proposed descriptors for the mechanisms, high-throughput calculations are performed for 63 solutes. Our results confirm that the two mechanisms are strongly correlated. In most of the cases, the same solute has the same effect on the deformation through both mechanisms.