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    卢书媛, 顾伟, 王卫忠, 徐海斌, 徐罗平. 汽车转向传动轴断裂原因分析[J]. 机械工程材料, 2014, 38(2): 102-104.
    引用本文: 卢书媛, 顾伟, 王卫忠, 徐海斌, 徐罗平. 汽车转向传动轴断裂原因分析[J]. 机械工程材料, 2014, 38(2): 102-104.
    shu
    LU Shu-yuan, GU Wei, WANG Wei-zhong, XU Hai-bin, XU Luo-pin. Failure Analysis of Vehicle Steering Driveshaft Fracture[J]. Materials and Mechanical Engineering, 2014, 38(2): 102-104.
    Citation: LU Shu-yuan, GU Wei, WANG Wei-zhong, XU Hai-bin, XU Luo-pin. Failure Analysis of Vehicle Steering Driveshaft Fracture[J]. Materials and Mechanical Engineering, 2014, 38(2): 102-104.
    shu

    汽车转向传动轴断裂原因分析

    Failure Analysis of Vehicle Steering Driveshaft Fracture

      摘要
    • 摘要: 通过断口形貌与显微组织观察、化学成分测试等分析了汽车转向传动轴断裂失效的原因。结果表明: 转向传动轴属扭转疲劳断裂, 裂纹萌生于其外表面, 表面粗糙的机加工痕迹形成裂纹源, 是造成转向传动轴早期失效的主要原因。

       

      Abstract: The reasons for fracture failure of some steering driveshaft were analyzed from the tests of fracture morphology, microstructure and chemical composition. The results show that the steering driveshaft broke because of torsional fatigue, and cracks initiated from the surface of the steering driveshaft. The main reason for early failure of the steering driveshaft was the rough machining trace.

       

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