压力容器Issue(5)：36-40,5.DOI:10.3969/j.issn.1001-4837.2014.05.005
胀接工艺对镍基合金换热管残余应力的影响
Influence of Expanding Process on Residual Stress of Nickel-Base Alloy Tubes
王立辉 1李伟 1吴喜亮1
作者信息
- 1. 哈电集团 秦皇岛 重型装备有限公司，河北秦皇岛 066206
- 折叠
摘要
Abstract
Residual tensile stress caused by expanding was the major factor lead to stress corrosion crack-ing on nuclear heat exchangers tubes.Experimental research of residual stress in expanded SB-163 UNS N06690 tubes was carried out with hydraulic expansion and mechanical rolling processes.The results show that,maximum residual stress was located at expansion transition zone and minimum value located at un-expanded zone.Deformation of mechanical rolling was larger than hydraulic expansion and results in high-er residual stresses.Residual stresses in transition zone increase with wall reduction.关键词
镍基合金换热管/液压胀接/机械胀接/残余应力Key words
nickel-base tube/hydraulic expansion/mechanical rolling/residual stress分类
机械制造引用本文复制引用
王立辉,李伟,吴喜亮..胀接工艺对镍基合金换热管残余应力的影响[J].压力容器,2014,(5):36-40,5.
