作者
Haidong Fan, Qingyuan Wang, Xiaobao Tian, Jaafar A El-Awady
发表日期
2017/1/15
期刊
Scripta Materialia
卷号
127
页码范围
68-71
出版商
Pergamon
简介
Temperature effects on the mobility of < c + a > dislocations on pyramidal planes are characterized by molecular dynamics simulations. On the first-order pyramidal planes, near-edge dislocations always decompose, while the critical resolved shear stress (CRSS) for near-screw dislocations increases with increasing temperatures. On the second-order pyramidal planes, the CRSS decreases to a minimum at ~ 400 K, then increases with temperatures. This indicates that first-order pyramidal slip is favorable at low temperatures, while at elevated temperatures both pyramidal slip planes are active, leading to profuse plasticity.
学术搜索中的文章
H Fan, Q Wang, X Tian, JA El-Awady - Scripta Materialia, 2017