Effect of biaxial cyclic tension on the fatigue life and damage mechanisms of Cr-Mo steel
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- 作者：Vidit Gaura ; b ; gaur.vidit@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Vé ; ronique Doqueta ; doquet@lms.polytechnique.fr" class="auth_mail" title="E-mail the corresponding author ; Emmanuel Persentb ; Elé ; onore Roguetb
- 关键词：Biaxial tension ; Intergranular facets ; Hydrogen embrittlement ; Fatigue criterion ; Steel
- 刊名：International Journal of Fatigue
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：87
- 期：Complete
- 页码：124-131
- 全文大小：3347 K
文摘
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Cyclic biaxial tension tests were run at various biaxialities on 2.5%Cr–1%Mo steel.
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Moderate biaxialities (B = 0.25 and 0.5) had a beneficial effect on fatigue lives.
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By contrast equibiaxial tension slightly reduced the fatigue lives.
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Various endurance criteria failed to capture both mean stress and biaxiality effects.
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An alternative fatigue criterion extending Gerber’s parabola was proposed.