| 双动滑阀螺栓断裂失效分析 |
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| 引用本文： | 李家鼎,吴素君,史青君,刘翊之,钟群鹏. 双动滑阀螺栓断裂失效分析[J]. 失效分析与预防, 2006, 1(4): 42-45 |
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| 作者姓名： | 李家鼎 吴素君 史青君 刘翊之 钟群鹏 |
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| 作者单位： | 北京航空航天大学材料科学与工程学院,北京,100083;北京航空航天大学材料科学与工程学院,北京,100083;北京航空航天大学材料科学与工程学院,北京,100083;北京航空航天大学材料科学与工程学院,北京,100083;北京航空航天大学材料科学与工程学院,北京,100083 |
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| 摘 要： | 对双动滑阀装置上连接基座与滑道的螺栓在使用过程中发生的断裂进行了分析.结果表明,该螺栓化学成分和金相组织未见异常.断裂为多源沿晶断裂.经过对螺栓的服役条件以及工作中受力情况进行分析,认为螺栓断裂主要是由于长时间在高温条件下发生蠕变导致的.
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| 关 键 词： | 螺栓 断裂 蠕变 |
| 文章编号： | 1673-6214（2006）04-0042-04 |
| 收稿时间： | 2006-07-18 |
| 修稿时间： | 2006-07-182006-09-08 |
Failure Analysis of Bolt in Two-Way Moving Slide Valve |
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| LI Jia-ding,WU Su-jun,SHI Qing-jun,LIU Yi-zhi,ZHONG Qun-peng. Failure Analysis of Bolt in Two-Way Moving Slide Valve[J]. Failure Analysis and Prevention, 2006, 1(4): 42-45 |
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| Authors: | LI Jia-ding WU Su-jun SHI Qing-jun LIU Yi-zhi ZHONG Qun-peng |
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| Affiliation: | Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The fracture characteristics of bolt connecting the pedestal with slipway in a two-way moving slide valve was analyzed, The results show that chemical composition and microstructure of rite facture bolt were in normal state. The bolt was intergranular fracture with many origins. Work condition and force acting of the bolt were analyzed. The bolt failure was creep fracture mainly due to their high temperature work condition. |
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| Keywords: | bolt fracture creep |
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