| 减震器托架断裂失效分析 |
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| 引用本文： | 刘艳琳,梅华生,彭颋.减震器托架断裂失效分析[J].精密成形工程,2014,6(4):69-73. |
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| 作者姓名： | 刘艳琳 梅华生 彭颋 |
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| 作者单位： | 西南技术工程研究所, 重庆 400039;西南技术工程研究所, 重庆 400039;西南技术工程研究所, 重庆 400039 |
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| 摘 要： | 目的解决减震器托架断裂失效的问题。方法通过化学成分分析、力学性能分析、断口扫描分析、金相组织分析、氢含量测试等手段,确定了减震器托架断裂性质及原因。结果减震器托架发生氢脆断裂。结论由于酸洗过程中材料渗入过量氢,导致氢脆并发生断裂。为防止类似的失效事故再次发生,提供了一些指导性建议。
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| 关 键 词： | 减震器拖架 失效分析 断裂 |
| 收稿时间： | 2014/5/10 0:00:00 |
| 修稿时间： | 7/1/2014 12:00:00 AM |
Fracture Failure Analysis of the Shock Absorber Bracket |
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| LIU Yan-lin,MEI Hua-sheng and PENG Ting.Fracture Failure Analysis of the Shock Absorber Bracket[J].Journal of Netshape Forming Engineering,2014,6(4):69-73. |
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| Authors: | LIU Yan-lin MEI Hua-sheng and PENG Ting |
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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 |
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| Abstract: | Objective To investigate the cause for fracture failure of the shock absorber bracket. Methods The properties and cause of the fracture failure of the shock absorber bracket were determined by means of chemical composition analysis, mechanical performance analysis, SEM analysis, metallographic examination and hydrogen content test. Results The fracture failure of shock absorber bracket belonged to hydrogen embrittlement. Conclusion The permeation of excessive hydrogen during the acid washing process of the material induced hydrogen embrittlement and fracture failure. In order to prevent similar failure accidents, this paper provided some guiding advice. |
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| Keywords: | shock absorber bracket failure analysis fracture |
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