| 发电厂机组螺栓断裂失效分析 |
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| 引用本文： | 韩伟红,张绪平,孙智.发电厂机组螺栓断裂失效分析[J].煤矿机械,2007,28(3):67-68. |
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| 作者姓名： | 韩伟红 张绪平 孙智 |
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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,221008 |
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| 摘 要： | 发电厂机组螺栓在检修时发生断裂,因此对螺栓断裂原因进行了分析。结果表明,断裂的螺栓组织粗大不均,硫产生偏聚,螺栓材料严重脆化,不足以承受施加的载荷,而且外部载荷存在偏载,从而导致完全脆性断裂。
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| 关 键 词： | 螺栓 失效分析 脆性断裂 |
| 文章编号： | 1003-0794（2007）03-0067-02 |
| 修稿时间： | 2006-12-19 |
Fracture Failure Analysis on Bolt for Power Plant |
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| HAN Wei-hong,ZHANG Xu-ping,SUN Zhi.Fracture Failure Analysis on Bolt for Power Plant[J].Coal Mine Machinery,2007,28(3):67-68. |
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| Authors: | HAN Wei-hong ZHANG Xu-ping SUN Zhi |
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| Affiliation: | Material Science and Engineering Institute, China University of Mining and Technology, Xuzhou 221008, China |
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| Abstract: | The breaking of unit bolt of power plant at service was investigated by fracture analysis means. The results showed that the micro structure of broken bolt is bulky and non - uniform and sulfur partial gathered in some parts. This condition made the steel embritflement. The bolt cant, stand against the external load which is deflection, then cause the completeness brittle fracture finally. |
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| Keywords: | bolt failure analysis brittle fracture |
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