Fisheye failure analysis and life design approach for case-carburized gear steel based on statistical evaluation of defect size
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- 作者：Zhenduo Sun ; Wei Li ; lw_cy@sina.com" class="auth_mail" title="E-mail the corresponding author ; Hailong Deng ; Zhenyu Zhang
- 关键词：Carburized gear steel ; Interior fisheye failure ; Inclusion ; Fatigue strength ; Design approach
- 刊名：Engineering Failure Analysis
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：59
- 期：Complete
- 页码：28-40
- 全文大小：1854 K
文摘
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The fisheye is the common failure feature in the HCF and VHCF regimes.
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The effect of crack size within fisheye on fatigue life is reduced with increase of stress.
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A fatigue strength prediction model associated with the variation of crack size was developed.
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An approach for establishing interior S–N curve with inclusion-fisheye failure was proposed.