理化检验-物理分册2013，Vol.49Issue(1)：64-67,70,5.
超临界机组轴封冷却器TP304不锈钢管泄漏原因分析
Analysis on Leakage Cause of TP304 Stainless Steel Tube in Gland Steam Condenser of USC Units
田晓 1肖国华 1李益民 1杨百勋1
作者信息
- 1. 西安热工研究院有限公司,西安710043
- 折叠
摘要
Abstract
The leakage cause of TP304 stainless steel tube in gland steam condenser of USC units was investigated by means of macroscopic observation, chemical composition analysis, tensile test, flattening test, intergranu-lar corrosion test, metallographic examination, SEM and EDS analysis. The results showed that the leakage of TP304 stainless steel tube was caused by stress corrosion under the joint action of surface residual stress and corrosive medium Cl- , S2- in steam. For this, preventive measures, such as relieving surface residual stress, strictly controlling boiler steam-water quality, reducing the content of harmful irons, have been put forward.关键词
轴封冷却器/TP304不锈钢/应力腐蚀/裂纹Key words
gland steam condenser/ TP304 stainless steel/ stress corrosion/ crack分类
能源科技引用本文复制引用
田晓,肖国华,李益民,杨百勋..超临界机组轴封冷却器TP304不锈钢管泄漏原因分析[J].理化检验-物理分册,2013,49(1):64-67,70,5.
