压力容器2011，Vol.28Issue(9)：7-9,14,4.DOI:10.3969/j.issn.1001-4837.2011.09.002
在役自增强反应管残余应力衰减规律及影响
Relaxation Law and Effect of Residual Stress of Autofrettaged Tubular Reactor in Service
朱金花 1秦宗川 1徐鹏1
作者信息
- 1. 合肥通用机械研究院国家压力容器与管道安全工程技术研究中心,安徽合肥230031
- 折叠
摘要
Abstract
The residual stress distribution of AISI4333 M4 autofrettage reactor vessel in service was meas-ured by Sachs stress relief method. Test result shows that the average circumferential stress of the reactor vessel is decreased by 18.0% after running for 17 years. More analysis shows that the stress relaxation with thickness of reactor vessel shows with alphabet "V" variation and the elastic - plastic interface prop-agates to the surface along radius direction in the tube, the strength of fatigue reduces a lot; which pro-vides reference and basic data for security assessment of reactor vessel in service.关键词
反应管/自增强/残余应力/应力松弛/弹塑性界面/疲劳强度Key words
reactor vessel/ autofrettage/ residual stress/ stress relaxation/ elastic-plastic interface/ strength of fatigue分类
化学化工引用本文复制引用
朱金花,秦宗川,徐鹏..在役自增强反应管残余应力衰减规律及影响[J].压力容器,2011,28(9):7-9,14,4.
