This paper examines the effect of mean stress on the fatigue behavior of very hard carburized steels. Current theories suggest that the maximum stress at the fatigue limit continuously decreases with decreasing minimum stress whereas the results of this study indicate that the maximum stress remains constant for minimum stresses less than the fully reversed constant amplitude fatigue limit minimum stress. The theory proposed by the authors corrects this error by maintaining the maximum stress at the fatigue limit constant with decreasing minimum stress in the compressive mean stress region.

中文翻译：

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硬钢在应力寿命中的平均应力效应

本文研究了平均应力对非常硬的渗碳钢的疲劳行为的影响。当前的理论表明，疲劳极限处的最大应力随着最小应力的减小而连续减小，而本研究的结果表明，对于最小应力小于完全反转的恒定振幅疲劳极限最小应力，最大应力保持恒定。作者提出的理论通过在压缩极限平均应力区域内减小最小应力的同时，将最大应力保持在疲劳极限不变，从而纠正了该误差。