Abstract Fretting may deteriorate contacts in terms of wear and cracking. Fretting-induced material degradation and frictional behaviour was studied experimentally in a large flat-on-flat fretting contact with a moderate nominal normal pressure and in different sliding conditions. The materials studied were cast iron, structural steel, and quenched and tempered steel. The results for all materials revealed a severely deformed microstructure, a tribologically transformed structure with high hardness, an oxidized third body layer and cracking. The initial peak in the coefficient of friction followed by stabilization occurred in all material pairs in gross sliding conditions. With low utilization of friction, only a limited amount of damage occurred. The results for each of these materials were compared.

中文翻译：

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与钢和铸铁的大平对平微动接触中的裂纹和降解层

摘要 微动可能会导致接触件磨损和开裂。在中等标称法向压力和不同滑动条件下的大型平对平微动接触中，通过实验研究微动引起的材料降解和摩擦行为。研究的材料是铸铁、结构钢和调质钢。所有材料的结果都显示出严重变形的微观结构、具有高硬度的摩擦转变结构、氧化的第三体层和开裂。摩擦系数的初始峰值随后稳定出现在粗滑动条件下的所有材料对中。由于摩擦利用率低，只发生了有限的损坏。比较了每种材料的结果。