| 空气滤网不锈钢丝开裂原因分析 |
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| 引用本文： | 高岩,郑志军,赵中玲. 空气滤网不锈钢丝开裂原因分析[J]. 腐蚀科学与防护技术, 2004, 16(2): 107-109 |
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| 作者姓名： | 高岩 郑志军 赵中玲 |
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| 作者单位： | 1. 华南理工大学,机械工程学院,广州,510640
2. 黑龙江电力职工大学教务处,哈尔滨,150030 |
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| 摘 要： | 对某电厂开裂失效的不锈钢丝编制的空气滤网的分析表明：其开裂是由晶间腐蚀和应力腐蚀联合作用引起的开裂.主裂纹是应力腐蚀裂纹，不锈钢丝冷加工残余拉应力及环境中Cl离子的存在是不锈钢丝发生应力腐蚀开裂的主要原因.而用材不当，导致发生了晶间腐蚀.晶间腐蚀作为裂纹的起源，诱发并促进了不锈钢丝的应力腐蚀开裂.
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| 关 键 词： | 不锈钢 晶间腐蚀 应力腐蚀开裂 |
| 文章编号： | 1002-6495(2004)02-0107-03 |
| 收稿时间： | 2002-10-24 |
| 修稿时间： | 2002-10-24 |
FRACTURE ANALYSIS OF STAINLESS STEEL WIRE OF AIR FILTER |
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| GAO Yan,ZHENG Zhi-jun,ZHAO Zhong-ling .College of Mechanical Engineering,South China University of Technology,Guangzhou ,China, .HeiLongJiang Extracurricular College of Electric Power,Haerbin ,China. FRACTURE ANALYSIS OF STAINLESS STEEL WIRE OF AIR FILTER[J]. Corrosion Science and Protection Technology, 2004, 16(2): 107-109 |
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| Authors: | GAO Yan ZHENG Zhi-jun ZHAO Zhong-ling .College of Mechanical Engineering South China University of Technology Guangzhou China .HeiLongJiang Extracurricular College of Electric Power Haerbin China |
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| Affiliation: | 1.College of Mechanical Engineering;South China University of Technology 2.HeiLongJiang Extracurricular College of Electric Power |
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| Abstract: | The stainless steel wire of the air filter of a power plant cracked seriously after operated for less than two months.It was found through failure analysis that the fracture was caused by the joint action of stress corrosion and intergranalar corrosion.The main cracks are stress corrosion cracks.The residual stress induced by cold working and Cl in the environment were the main reasons for the stress corrosion cracking,whereas the misuse of the material resulted in the intergranular corrosion,which induced the stress corrosion cracks and promoted their propagation. |
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| Keywords: | stainless steel intergranular corrosion stress corrosion |
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