|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Computational Materials Discovery and Optimization: From 2D to Bulk Materials
||H-1: A Theoretical Study on the Origin of Mg-based LPSO Structures
||Daisuke Matsunaka, Yoji Shibutani
|On-Site Speaker (Planned)
Recently, Mg alloys have been attracting attention because of its light weight. In particular, Mg-M-RE alloys (M: main group or transition metal, RE: rare earth) show excellent mechanical performances such as high yield strength and ductility, which are considered to be caused by long period stacking ordered (LPSO) structures. The LPSO structures consist of the periodic arrangement of basal stacking faults (SFs) and the enrichment of solute atoms in the vicinity of SFs. However, the physical origin of the ordering of the solute-enriched layers still remains controversial. In this study, we evaluate interaction between the neighboring solute-enriched layers, using first-principles calculations, and investigate effects of phonon on the periodic arrangement of the solute-enriched layers with a simple effective model.
||Planned: A print-only volume