| 内燃机铸造铝合金活塞失效分析 |
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| 引用本文： | 梅华生,肖勇,李荣强,张秀蓉,王长朋.内燃机铸造铝合金活塞失效分析[J].精密成形工程,2013,5(4):60-63. |
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| 作者姓名： | 梅华生 肖勇 李荣强 张秀蓉 王长朋 |
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| 作者单位： | 西南技术工程研究所,重庆,400039 |
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| 摘 要： | 通过化学成分分析、断口扫描分析及金相组织分析等手段,对内燃机铸造铝合金活塞顶部破裂失效原因进行了分析.结果表明,材料内部存在的组织缺陷及大量的铁相夹杂是导致构件早期失效断裂的主要原因.
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| 关 键 词： | 活塞 失效分析 组织缺陷 |
| 收稿时间： | 2012/9/10 0:00:00 |
| 修稿时间： | 6/1/2013 12:00:00 AM |
Failure Analysis of the Casting Aluminum Pistons of Internal Combustion Engines |
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| MEI Hua-sheng,XIAO Yong,LI Rong-qiang,ZHANG Xiu-rong and WANG Chang-peng.Failure Analysis of the Casting Aluminum Pistons of Internal Combustion Engines[J].Journal of Netshape Forming Engineering,2013,5(4):60-63. |
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| Authors: | MEI Hua-sheng XIAO Yong LI Rong-qiang ZHANG Xiu-rong and WANG Chang-peng |
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| Affiliation: | Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Southwest Technology and Engineering Research Institute, Chongqing 400039, China |
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| Abstract: | The fracture failure reason of the casting aluminum pistons of internal combustion engines was analyzed by means of chemical composition analysis, SEM analysis and metallographic examination. The results showed that the microstructure defects and lots of Fe-phase inclusions in material were the main reasons which led to earlier failure of the workpiece. |
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| Keywords: | piston failure analysis microstructure defect |
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