Effects of Residual Stress on Creep Crack Initiation and Growth of Cr-Mo-V steel in Cracked C(T) Specimen

被引：7
作者：
Song, X. M. [1 ]
Wang, G. Z. [1 ]
Tu, S. -T. [1 ]
Xuan, F. Z. [1 ]
机构：
[1] E China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China
来源：
PRESSURE VESSEL TECHNOLOGY: PREPARING FOR THE FUTURE | 2015年 / 130卷
关键词：
Residual stress; creep crack initiation; creep crack growth; local out-of-plane compression; finite element; FAILURE SIMULATIONS; PREDICTION; CONSTRAINT; BEHAVIOR; DAMAGE; 316H;
D O I：
10.1016/j.proeng.2015.12.328
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effects of residual stress on the creep crack initiation and growth behavior were investigated. It has been shown that the higher compressive residual stress ahead of crack tips delays creep crack initiation and increases creep initiation life, while the higher tensile residual stress promotes creep crack initiation and decreases the initiation life. The residual stress essentially has no effect on creep crack growth rate. In creep life assessments of high temperature components, the effect of residual stress on the creep crack initiation should be mainly considered. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the organizing committee of ICPVT-14
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收藏
页码：1770 / 1778
页数：9
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