| 柴油发动机连杆断裂原因分析 |
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| 引用本文： | 成俊峰,李杰民,李秀芬.柴油发动机连杆断裂原因分析[J].理化检验(物理分册),2002,38(9):407-408. |
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| 作者姓名： | 成俊峰 李杰民 李秀芬 |
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| 作者单位： | 邢台机械轧辊有限公司,邢台,054025 |
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| 摘 要： | 应用金相、扫描电镜、能谱分析等手段，分析了柴油机连杆断裂原因。认为连杆的断裂是由于材料中存在的显微孔洞和夹杂物导致产生锻造裂纹，在随后调质过程中裂纹进一步扩展，致使使用时发生脆性断裂。
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| 关 键 词： | 柴油发动机 连杆 断裂 原因分析 显微孔洞 夹杂物 沿晶断口 |
| 文章编号： | 1001-4012(2002)09-0407-02 |
| 修稿时间： | 2001年12月11 |
THE FRACTURE ANALYSIS OF CONNECTING RODS OF DIESEL ENGINE |
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| CHENG Jun feng,LI Jie ming,LI Xiu fen.THE FRACTURE ANALYSIS OF CONNECTING RODS OF DIESEL ENGINE[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2002,38(9):407-408. |
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| Authors: | CHENG Jun feng LI Jie ming LI Xiu fen |
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| Abstract: | The fractured connecting rods of diesel engine were analyzed by means of SEM, EDS and metallographic test. The results showed that cracks by the forging cracks which results from microholes and inclusions of the material were developed in quenching and tempering, and led rods fracture finally. |
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| Keywords: | Microholes Inclusions Intergranular fracture |
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