| 汽车发动机曲轴断裂原因分析 |
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| 引用本文： | 李学鹏. 汽车发动机曲轴断裂原因分析[J]. 山东内燃机, 2011, 0(2): 50-52 |
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| 作者姓名： | 李学鹏 |
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| 作者单位： | 济南鲍德汽车运输有限公司,山东济南250101 |
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| 摘 要： | 通过宏观分析、断口分析、化学成分检验、金相检验和力学性能检测等方法,对汽车发动机曲轴断裂原因进行了分析。结果表明：该曲轴硫化物夹杂偏多、组织偏析导致曲轴强度和硬度偏低,引起曲轴疲劳断裂。
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| 关 键 词： | 曲轴 淬火组织 疲劳断裂 疲劳强度 |
Failure Analysis of Crankshaft Fracture in Automobile Engine |
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| LI Xue-peng. Failure Analysis of Crankshaft Fracture in Automobile Engine[J]. Shandong Internal Combustion Engine, 2011, 0(2): 50-52 |
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| Authors: | LI Xue-peng |
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| Affiliation: | LI Xue-peng(Jinan Baode Auto Transportation Co.,Ltd.,Jinan 250101,China) |
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| Abstract: | The analysis of automobile engine crankshaft was conducted by macroscopic examination,fracture analysis,chemical composition analysis,metallographic examination and mechanical properties test.The results indicate that the low strength and hardness,resulting from the Sulfide inclusions and organizational segregation,led to the crankshaft fatigue fracture. |
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| Keywords: | Crankshaft Quenching Microstructure Fatigue Fracture Fatigue Strength |
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