| 离心压缩机2级叶轮断裂失效分析 |
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| 引用本文： | 王亚勤,王志明.离心压缩机2级叶轮断裂失效分析[J].现代制造工程,2006(1):116-117. |
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| 作者姓名： | 王亚勤 王志明 |
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| 作者单位： | 沈阳铸造研究所,沈阳,110022 |
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| 摘 要： | 采用宏观、微观及SEM等分析方法,对离心压缩机2级叶轮断裂失效原因进行分析。结果表明,离心压缩机叶轮断裂原因是由于断裂源处表面脱碳,存在大量铁素体,使叶轮在该处硬度、强度及耐疲劳性能明显下降,难以承受压缩机工作状态对其产生的应力作用,形成疲劳方式开裂。
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| 关 键 词： | 叶轮 铁素体 脱碳 疲劳断裂 |
| 文章编号： | 1671-3133(2006)01-0116-02 |
| 修稿时间： | 2005年6月28日 |
Fracture failure analysis for centrifugal compressor 2 step leafwheel |
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| Wang Yaqin,Wang Zhiming.Fracture failure analysis for centrifugal compressor 2 step leafwheel[J].Modern Manufacturing Engineering,2006(1):116-117. |
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| Authors: | Wang Yaqin Wang Zhiming |
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| Abstract: | The analysis of fracture failure for centrifugal compressor 2 step leaf wheel were made by means of macro examination and microstructure examination.The results showed that the reason of fracture failure is caused by the divorce carbon of crack source zone surface,a large number of ferrite in the microstructure,the hardness strength and resist fatigue property of leaf wheel in this place obvious fall down,which is difficult to bear the stress action in compressor operating condition,so it forms fatigue fashion fracture. |
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| Keywords: | Leaf wheel Ferrite Divorce carbon Fatigue fracture |
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