期刊
MATERIALS & DESIGN
卷 54, 期 -, 页码 708-711出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2013.08.054
关键词
Ni-based alloy; Laser shock processing; Residual stress; Thermal relaxation; Finite element analysis
资金
- National Natural Science Foundation of China [51275556, 51239005]
- Jiangsu province science and technology support program [BE2013009-2]
- Six Major Talent Peak of Jiangsu Province [2012-ZBZZ-025]
The residual stress induced by laser shock processing and the thermal relaxation behaviors of residual stress in Ni-based alloy GH4169 were investigated by means of three-dimensional nonlinear finite element analysis. To study the effect of different given exposure time and different temperatures on residual stress in laser shock processing Ni-based alloy GH4169, Johnson-Cook material model was used in order to account for the nonlinear constitutive behavior. The influence of heating temperature and exposure time on the stress thermal relaxation was studied. It was concluded that stress relaxation mainly occured during the initial period of exposure, and the degree of relaxation increased as the temperature risen. The results would provide a theoretical basis for controlling the laser shock processing and guiding subsequent experiments. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据