Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations
Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations
复制标题
DOI：
10.1016/j.jnucmat.2016.02.031
复制
发表时间：
2016-05
影响因子：
3.1
通讯作者：
G. Bonny;D. Terentyev;J. Elena;A. Zinovev;B. Minov;E. Zhurkin
中科院分区：
文献类型：
--
作者：
G. Bonny;D. Terentyev;J. Elena;A. Zinovev;B. Minov;E. Zhurkin
Upon irradiation, iron based steels used for nuclear applications contain dislocation loops of both< 100> and ½< 111> type. Both types of loops are known to contribute to the radiation hardening and embrittlement of steels. In the literature many molecular dynamics works studying the interaction of dislocations with dislocation loops are available. Recently, based on such studies, a thermo-mechanical model to threat the dislocation–dislocation loop (DL) interaction within a discrete dislocation dynamics framework was developed for ½< 111> loops. In this work, we make a literature review of the dislocation–DL interaction in bcc iron. We also perform molecular dynamics simulations to derive the stress-energy function for< 100> loops. As a result we deliver the function of the activation energy versus activation stress for< 100> loops that can be applied in a discrete dislocation dynamics framework.
