Experimental study on the fatigue failure mechanism of QP-16 type ball-eye under asymmetric load
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- 作者：Zhanshan Xiea ; c ; xiezs2015@hhu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yuan Zhenga ; Anni Wangb ; c ; wanganni19871028@163.com" class="auth_mail" title="E-mail the corresponding author ; Yuan Chenc ; Qian Tiand ; Kan Kana
- 关键词：Failure analysis ; The ball eye ; Asymmetric load ; Fatigue test ; Microstructure
- 刊名：Engineering Failure Analysis
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：66
- 期：Complete
- 页码：141-153
- 全文大小：1524 K
文摘
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For the working conditions of the ball eye on the overhead line, it is the first time to carry out the fatigue test which bases on the following data:r = 0.25, S = 500 MPa, then curving the plotting of S-N, analyzing the fatigue mechanism and characteristics of the ball eye.
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From the macro point of view, it is the first time to analyze the mechanical properties and fatigue fracture characteristics of the ball eye in the process of fatigue evolution.
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From the microscopic point of view, it is the first time to analyze movement law and evolution characteristics of grain in the process of fatigue failure.