The strain rate during the thermal deformation process has a decisive effect on the performance of the material. Herein, Inconel 625 alloy is subjected to thermal compression at different strain rates to obtain fretting wear samples with different microstructures. The effects of the recrystallized grain morphologies, textures, and microhardness values on the fretting wear resistance of thermally compressed Inconel 625 are studied. The results demonstrate that the thermally compressed Inconel 625 alloy underwent severe oxidation reactions during fretting wear, mainly Fe oxides. At an equal temperature, as the strain rate of thermal compression increases, the friction coefficient and wear volume are found to first decrease and then increase. When the strain rates during thermal compression are 0.1 and 1 s⁻¹, the workpiece is in a relatively fine recrystallized grain form without texture and with high hardness. At this time, the thermally compressed Inconel 625 has a low friction coefficient, a small volume of wear, and a large number of oxides on its surface. Therefore, the thermal deformation microstructure has a great influence on the wear resistance. Improvement in the fretting wear resistance of the workpiece by adjusting the strain rate during the thermal deformation process is proposed.

中文翻译：

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应变速率对热压Inconel 625合金微动磨损性能的影响

热变形过程中的应变率对材料的性能具有决定性的影响。在此，对Inconel 625合金以不同的应变速率进行热压缩，以获得具有不同的微观结构的微动磨损样品。研究了再结晶晶粒的形态，织构和显微硬度值对热压Inconel 625的抗微动磨损性的影响。结果表明，热压Inconel 625合金在微动磨损（主要是Fe氧化物）过程中发生了严重的氧化反应。在相同温度下，随着热压缩应变率的增加，摩擦系数和磨损量会先减小然后增加。当热压缩期间的应变率为0.1和1 s ^-1时，工件为相对细的再结晶晶粒形式，没有纹理并且具有高硬度。此时，经热压缩的Inconel 625具有低摩擦系数，小磨损量以及其表面上的大量氧化物。因此，热变形组织对耐磨性有很大影响。提出了通过调节热变形过程中的应变率来提高工件的抗微动磨损性。