| 汽车发动机B48盘簧断裂原因分析 |
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| 引用本文： | 杨川,崔国栋,高国庆.汽车发动机B48盘簧断裂原因分析[J].金属热处理,2006,31(9):71-73. |
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| 作者姓名： | 杨川 崔国栋 高国庆 |
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| 作者单位： | 西南交通大学,材料学院,四川,成都,610031;西南交通大学,材料学院,四川,成都,610031;西南交通大学,材料学院,四川,成都,610031 |
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| 摘 要： | 利用光学显微镜与扫描电镜对汽车发动机中断裂的B48型盘簧微观组织与断口进行分析。结果表明，盘簧断裂属于疲劳断裂。造成疲劳断裂的原因是由于盘簧在工作状态下发生了剧烈的摩擦，盘簧表面发生相变，形成疲劳裂纹。
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| 关 键 词： | 盘簧 断裂 分析 |
| 文章编号： | 0254-6051（2006）09-0071-03 |
| 收稿时间： | 2006-03-24 |
| 修稿时间： | 2006-03-24 |
Fracture Analysis of B48 Coil-Spring for Automobile Engine |
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| YANG Chuan,CUI Guo-dong,GAO Guo-qing.Fracture Analysis of B48 Coil-Spring for Automobile Engine[J].Heat Treatment of Metals,2006,31(9):71-73. |
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| Authors: | YANG Chuan CUI Guo-dong GAO Guo-qing |
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| Affiliation: | Materials School, Southwest Jiaotong University, Chengdu Sichuan 610031, China |
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| Abstract: | The microstructure and fracture appearance of B48 coil spring in automobile engine were analyzed by OM and SEM. The results show that the fracture of B48 coil spring belongs to fatigue fracture. The reason of fatigue fracture is that exquisite friction took place during the coil spring working, causing phase transformation and forming crack in the surface of coil spring. |
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| Keywords: | coil-spring fracture analysis |
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