| 低频率下波纹管膨胀节腐蚀疲劳行为模拟 |
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| 引用本文： | 康学勤,孙智,李晓伋. 低频率下波纹管膨胀节腐蚀疲劳行为模拟[J]. 压力容器, 2008, 25(9): 1-3 |
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| 作者姓名： | 康学勤 孙智 李晓伋 |
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| 作者单位： | 中国矿业大学,材料科学与工程学院,江苏,徐州,221116 |
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| 摘 要： | 针对供热管道波纹管膨胀节在设计使用期限内发生泄漏的实际问题，在低频率下对波纹管膨胀节的腐蚀疲劳行为进行模拟，用宏观、微观的方法分析研究了发生开裂泄漏的波纹管和模拟试验中波纹管的各种特征，得出了如下结论：波纹管实际腐蚀破坏中存在着腐蚀疲劳失效。经过研究表明，该波纹管有一定的耐腐蚀疲劳性能，检测未发生泄漏的波纹管可以继续使用。
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| 关 键 词： | 奥氏体不锈钢 失效分析 腐蚀疲劳 |
Simulation of Corrosion Fatigue of Stainless Steel Bellow Expansion Joints at Low Frequency |
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| KANG Xue-qin,SUN Zhi,LI Xiao-ji. Simulation of Corrosion Fatigue of Stainless Steel Bellow Expansion Joints at Low Frequency[J]. Pressure Vessel Technology, 2008, 25(9): 1-3 |
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| Authors: | KANG Xue-qin SUN Zhi LI Xiao-ji |
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| Affiliation: | -ji (School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China) |
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| Abstract: | 1 Cr18Ni9Ti stainless steel bellows used in the heat supply pipeline was cracked in term of service. The behavior of corrosion fatigue of stainless steel bellow expansion joints was simulated at low frequency. The failure characters of 1Cr18Ni9Ti bellows and simulated bellows were analyzed through macro -analysis and micro- analysis in this thesis. The results show that corrosion fatigue occured in bellows application. The simulated test shows that bellows have certain residual corrosion fatigue resistance. |
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| Keywords: | austenitic stainless steel failure analysis corrosion fatigue |
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