Abstract In order to enhance component performance, material sustainability, and service life, this study presents the tribological behavior of different austempered AISI 5160 steel specimens with shot peening. All the specimens were austempered for 2 h, then followed by shot peening to study the effect of shot peening and bainite morphologies on the wear and friction behavior. The microstructures, hardness, and residual stress of specimens were studied by optical microscopy, scanning electron microscopy, Vickers micro-hardness, 3D-profiler, and X-ray diffraction. Shot peening produced higher hardness on soft austempered specimens, rather than on hard austempered specimens. Compared with non-shot peened austempered disk specimens, the wear reduction of disk specimens with shot peening is up to 73%.

中文翻译：

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喷丸/等温淬火 AISI 5160 钢的摩擦学行为

摘要 为了提高部件性能、材料可持续性和使用寿命，本研究展示了不同的奥氏体 AISI 5160 钢试样喷丸处理的摩擦学行为。所有试样均经过等温淬火 2 h，然后进行喷丸处理，以研究喷丸处理和贝氏体形貌对磨损和摩擦行为的影响。通过光学显微镜、扫描电子显微镜、维氏显微硬度、3D 轮廓仪和 X 射线衍射研究了试样的微观结构、硬度和残余应力。喷丸在软等温淬火试样上产生更高的硬度，而不是在硬等温淬火试样上。与未经喷丸处理的奥氏体圆盘试样相比，喷丸处理的圆盘试样的磨损减少高达 73%。