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Rolling Contact Fatigue of Nitrided 32CrMoV13 steel

机译:氮化32CrMoV13钢的滚动接触疲劳

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In this paper, dent initiated Rolling Contact Fatigue (RCF) of nitrided 32CrMoV13 steel is studied, both experimentally and numerically, from the indentation process to the RCF failure. First, a method based on nano-indentation testing has been set up to identify the local elastic-plastic behaviour of nitrided 32CrMoV13 steel, hence enabling the characterisation of the micro-yield shear stress profile. Fatigue tests have then been conducted to evidence the influence of different operating conditions on RCF and to compare nitrided 32CrMoV13 steel to a reference material. Last, a numerical study is presented. An indent based endurance limit, H1I is determined. The comparison of H1I with experimental results show that it is a coherent definition of the endurance limit.
机译:本文从压痕过程到RCF破坏,从实验和数值上研究了凹痕引发的32CrMoV13氮化钢的滚动接触疲劳(RCF)。首先,已经建立了一种基于纳米压痕测试的方法来识别氮化的32CrMoV13钢的局部弹塑性行为,从而能够表征微屈服剪切应力曲线。然后进行了疲劳测试,以证明不同操作条件对RCF的影响,并将氮化的32CrMoV13钢与参考材料进行比较。最后,给出了数值研究。确定基于凹痕的耐力极限H1I。 H1I与实验结果的比较表明,它是耐力极限的一致定义。

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