Abstract Rolling contact fatigue is the main cause of failure in bearings. Among other factors, damage phenomena are related to material properties and manufacturing processes. The damage evolution might be affected by microinclusions present in the material. This influence is related to composition, dimension, shape and location of microinclusions. The relation between microinclusions and fatigue life is investigated for both specimens undergoing rotating bending fatigue and balls undergoing Hertzian pressure fatigue for 100Cr6. A life model for balls, involving microinclusions effect and actual ball rotation movements is proposed. Failures are analyzed to relate life of rolling elements to the microinclusion parameters.

中文翻译：

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微夹杂物对滚动体寿命的影响：实验、微观结构、分析和数值研究

摘要 滚动接触疲劳是轴承失效的主要原因。除其他因素外，损坏现象与材料特性和制造工艺有关。损伤演变可能受到材料中存在的微夹杂物的影响。这种影响与微夹杂物的成分、尺寸、形状和位置有关。对于 100Cr6 进行旋转弯曲疲劳和球体的赫兹压力疲劳试验，研究了微观夹杂物与疲劳寿命之间的关系。提出了一种球的生命模型，涉及微包裹体效应和实际球旋转运动。分析故障以将滚动元件的寿命与微夹杂物参数相关联。