|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Molecular Dynamic Simulations on the Mechanical Properties of CoCrFeMnNi High Entropy Alloy and the Equimolar Alloys in Its Sub-system
||Yinkai Lei, Michael Gao, Youhai Wen, Yu Zhong
|On-Site Speaker (Planned)
The mechanical properties of FCC CoCrFeMnNi high entropy alloy and the equimolar alloys in its sub-system are investigated by molecular dynamic simulations using a recently developed Modified-Embedded-Atom-Method potential. Four effects on the mechanical properties have been investigated, i.e. entropy effect, temperature effect, strain rate effect and grain size effect. Typical deformation mechanisms under different conditions have also been analyzed. These atomistic scale simulations provide basic understanding on the detailed deformation mechanisms in Co-Cr-Fe-Mn-Ni alloy system and how they affect the mechanical properties. The atomic structures generated from molecular dynamics are compared with those from first-principles density functional theory and hybrid Monte Carlo/ab initio molecular dynamics simulations.