New insights into radiation hardening in face-centered cubic alloys

被引：12

作者：

Monnet, Ghiath ^{[1
]}

机构：

[1] EDF R&D, F-77818 Moret Sur Loing, France

来源：

SCRIPTA MATERIALIA | 2015年 / 100卷

关键词：

Strengthening; Dislocation dynamics; Radiation hardening; Dislocation loops; fcc; DISLOCATION DYNAMICS; DEFORMATION; LOCALIZATION; PLASTICITY; LOOPS;

D O I：

10.1016/j.scriptamat.2014.12.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In face-centered cubic (fcc) metals, defects with dislocation character are the main component of the radiation microstructure. Despite the large number of reported interaction mechanisms, a significant ratio of interactions results in defect absorption, leading to the forming of superjogs and helical turns. Since absorption is controlled by elastic relaxation, dislocation dynamics simulations are used to determine the corresponding hardening. In agreement with experiments, simulation results reveal a strong hardening level, independent of the alloy friction or the dislocation velocity. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：24 / 27

页数：4

共 31 条

[1] A dislocation dynamics study of the transition from homogeneous to heterogeneous deformation in irradiated body-centered cubic iron [J].