| 换热设备用不锈钢材料腐蚀失效分析 |
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| 引用本文： | 鲁照玲,周志毅,周宇.换热设备用不锈钢材料腐蚀失效分析[J].腐蚀科学与防护技术,2006,18(6):443-445. |
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| 作者姓名： | 鲁照玲 周志毅 周宇 |
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| 作者单位： | 1. 华中科技大学化学系,武汉,430074
2. 武汉材料保护研究所腐蚀室,武汉,430030 |
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| 摘 要： | 用能量散射能谱(EDS)、金相分析和化学分析等手段，对换热器用的1Cr18Ni9Ti不锈钢材料的腐蚀失效行为进行了分析.结果表明，换热器用1Cr18Ni9Ti不锈钢的腐蚀失效主要由不锈钢晶间的碳化物析出、环境介质中氯离子含量过高及残余应力所引起.
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| 关 键 词： | 不锈钢 腐蚀 碳化物 氯离子 残余应力 |
| 文章编号： | 1002-6495（2006）06-0443-03 |
| 收稿时间： | 2005-12-11 |
| 修稿时间： | 2006-03-20 |
FAILURE ANALYSIS OF STAINLESS STEEL USED IN A HEAT-EXCHANGER EQUIPMENT |
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| LU Zhao-ling,ZHOU Zhi-yi,ZHOU Yu.FAILURE ANALYSIS OF STAINLESS STEEL USED IN A HEAT-EXCHANGER EQUIPMENT[J].Corrosion Science and Protection Technology,2006,18(6):443-445. |
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| Authors: | LU Zhao-ling ZHOU Zhi-yi ZHOU Yu |
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| Affiliation: | 1. Chemistry Department, Huazhong University of Science and Technology, Wuhan 430074 ; 2. Corrosion Laboratory, Wuhan Research Institute of Materials Protection, Wuhan 430030 |
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| Abstract: | The corrosion-induced failure behavior of stainless steel used in a heat-exchanger equipment was analysized by various methods including Energy Dispersive Spectrometry(EDS),optical microscopy and chemical composition analysis.The results showed that the failure is induced mainly by the intergranular precipitation of carbides,the high content of chloride ion in the medium as well as the residual stress of the steel component. |
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| Keywords: | stainless steel corrosion carbide chloride ion residual stress |
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