Deformation of Ni20W20Cu20Fe20Mo20 high entropy alloy for tensile followed by compressive and compressive followed by tensile loading: A molecular dynamics simulation based study

被引：9

作者：

Meraj, Md. ^{[1
]}

Pal, S. ^{[1
]}

机构：

[1] Natl Inst Technol Rourkela, Dept Met & Mat Engn, Computat Mat Engn Grp, Rourkela 769008, Odisha, India

来源：

5TH NATIONAL CONFERENCE ON PROCESSING AND CHARACTERIZATION OF MATERIALS | 2016年 / 115卷

关键词：

Molecular Dynamics; High entropy alloy; Twin; Atomic diffusion;

D O I：

10.1088/1757-899X/115/1/012019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, molecular dynamics (MD) simulations based study on deformation behavior during uniaxial tension followed by compression and compression followed by tension after 0.6 pre-strain for Ni20W20Cu20Fe20Mo20 high entropy alloy (20 at. % each element) single crystals has been reported. This MD simulation is carried out at strain rate of 108 s-1 and at the temperature of -10oC. The influence of observed nano twin on deformation behaviour for such two types of loading process (i.e. tensile followed by compressive and compressive followed by tensile) has been investigated thoroughly. It is found that the dominant deformation mechanism is twin for tensile forward loading in Ni20W20Cu20Fe20Mo20 high entropy alloy single crystal, whereas atomic diffusion is the dominating factor for deformation behaviour in compressive reverse loading direction of high entropy alloy.

引用

页数：7

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