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A scuffing criterion of steels based on the friction-induced adiabatic shear instability
Tribology International ( IF 6.1 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.triboint.2020.106340
Chuanwei Zhang , Bo Peng , Le Gu , Tingjian Wang , Liqin Wang

Abstract The modified scuffing equations based on the adiabatic shear instability induced by friction effects are postulated. With the present equations, an alternative softening mechanism of the near-surface material undergoing adiabatic shear failure is proposed. This mechanism is dominated by the frictional work, rather than the plastic-deformation work. Based on the mechanism, a quantitative criterion is developed for scuffing prediction, where scuffing failure results from the competition between the thermal softening and work hardening during adiabatic shear. Accordingly, the effect of materials properties associated with scuffing can be thoroughly understood, and quantitative evaluation of the material performance and efficient exploration of new materials subjected to extreme contact loading conditions are possible.

中文翻译:

基于摩擦引起的绝热剪切不稳定性的钢划伤判据

摘要 提出了基于摩擦效应引起的绝热剪切失稳的修正磨损方程。利用目前的方程,提出了一种近表面材料经历绝热剪切破坏的替代软化机制。这种机制主要是摩擦功,而不是塑性变形功。基于该机理,开发了一种用于磨损预测的定量标准,其中磨损失效是由绝热剪切过程中的热软化和加工硬化之间的竞争引起的。因此,可以彻底了解与划伤相关的材料特性的影响,并且可以对材料性能进行定量评估并有效探索在极端接触载荷条件下的新材料。
更新日期:2020-08-01
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