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不锈钢波纹管早期失效原因的分析
引用本文:陈云祥,郭琳,许岚.不锈钢波纹管早期失效原因的分析[J].热处理技术与装备,2009,30(2).
作者姓名:陈云祥  郭琳  许岚
作者单位:1. 浙江机电职业技术学院,浙江,杭州,310053
2. 杭州市机械科学研究院,浙江,杭州,310001
摘    要:对冷凝器内不锈钢波纹管的早期失效,本文运用金相显微镜、扫描电子显微镜和能谱仪等手段对波纹管的材质、微观组织和腐蚀现象进行分析研究.结果表明,波纹管为点状穿壁破损泄漏,在破损口周围材料中存在沿晶腐蚀和点蚀现象,材料中存在的夹杂物是形成破损通道的主要原因,环境腐蚀和管壁偏薄加速了波纹管破损泄漏的发生.

关 键 词:波纹管  腐蚀失效  显微组织

Analysis on Early Failure of Stainless Steel Ripple Pipe
CHEN Yun-xiang,GUO Lin,XU Lan.Analysis on Early Failure of Stainless Steel Ripple Pipe[J].Heat Treatment Technology and Equipment,2009,30(2).
Authors:CHEN Yun-xiang  GUO Lin  XU Lan
Affiliation:1.Zhejiang Institute of Mechanical and Electrical Engineering;Hangzhou Zhejiang 310053;China;2.Hangzhou Research Institute of Mechanical Engineering;Hangzhou Zhejiang 310001;China
Abstract:For the early failure of strainless-steel ripple pipe in condenser the component,microstructure and corrosion surface are researched by optical microscope,scan electronic microscope and spectrometer in this paper.The results show that the ripple pipe is a point leak perforating on pipe wall.There is point corrosion and crystal-boundary corrosion phenomena around the leaked channel.The leaking channel on pipe wall is mainly caused by impurity in strainless steel.The thin pipe wall and environment corrosion q...
Keywords:ripple pipe  corrosion failure  microstructure  
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