| 超临界锅炉过热器联箱管座断裂原因分析 |
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| 引用本文： | 王智春,李炜丽,蔡文河,侯旭东.超临界锅炉过热器联箱管座断裂原因分析[J].华北电力技术,2010(10):42-44. |
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| 作者姓名： | 王智春 李炜丽 蔡文河 侯旭东 |
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| 作者单位： | 1. 华北电力科学研究院有限责任公司,北京,100045
2. 河北锅炉压力容器监督检验研究院,河北石家庄,050061 |
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| 摘 要： | 针对超临界锅炉过热器联箱管座频繁出现开裂的问题,对典型的开裂管座宏观形貌、显微组织、力学性能以及断口微观形貌进行了分析,结果表明管座开裂是由于其在服役过程中承受了双向的弯曲循环载荷所导致的,这是超临界机组要加强监督的重点。
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| 关 键 词： | 超临界锅炉 联箱管座 疲劳断裂 |
Fracture Cause of Supercritical Boiler Superheater Header Tube Socket |
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| Wang Zhi-chun,Li Wei-li,Cai Wen-he,Hou Xu-dong.Fracture Cause of Supercritical Boiler Superheater Header Tube Socket[J].North China Electric Power,2010(10):42-44. |
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| Authors: | Wang Zhi-chun Li Wei-li Cai Wen-he Hou Xu-dong |
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| Affiliation: | 1. North China Electric Power Research Institute Co. Ltd. , Beijing 100045, China; 2. Hebei Boiler ＆ Pressure Vessel Inspection Institute, Shijiazhuang 050061, China) |
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| Abstract: | According to the frequent cracking problem of supercritical boiler superheater header tube socket, the typical crack tube socket macro-morphology, microstructure, mechanical properties and fracture morphology were analyzed, the results showed that the cracking was due to its two-way bending cyclic loading in service, which is the focus of supervision for supercrital units. |
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| Keywords: | supercritieal boiler header tube socket fatigue fracture |
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