| 不锈钢波纹管早期失效原因的分析 |
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| 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) |
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| 作者姓名： | 陈云祥 郭琳 许岚 |
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| 作者单位： | 浙江机电职业技术学院,浙江,杭州,310053;杭州市机械科学研究院,浙江,杭州,310001 |
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| 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.
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| 关 键 词： | 波纹管 腐蚀失效 显微组织 |
Analysis on Early Failure of Stainless Steel Ripple Pipe |
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| 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) |
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| Authors: | CHEN Yun-xiang GUO Lin XU Lan |
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| Affiliation: | 1.Zhejiang Institute of Mechanical and Electrical Engineering;Hangzhou Zhejiang 310053;China;2.Hangzhou Research Institute of Mechanical Engineering;Hangzhou Zhejiang 310001;China |
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| 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... |
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| Keywords: | ripple pipe corrosion failure microstructure |
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