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本文研究了22CrMnMo和18CrMnTi钢在渗层深度1.2mm—1.3mm条件下,经薄层软化直接淬火,薄层软化缓冷再加热淬火和薄层软化缓冷再加热高浓度碳氮共渗淬火等不同热处理后,对接触疲劳、弯曲疲劳和多冲性能的影响。试验结果表明、在渗层深度相近情况下,薄层软化缓冷再加热高浓度碳氮共渗淬火的接触疲劳强度最高,簿层软化直淬次之,薄层软化缓冷再加热淬火最低;相反,薄层软化缓冷再加热淬火的弯曲疲劳和多冲抗力最高。
In this paper, 22CrMnMo and 18CrMnTi steel at the infiltration depth of 1.2mm-1.3mm conditions, the direct quenching by thinning, thinning slow cooling reheat quenching and thinning soft slow cooling reheat high concentration carbonitriding quenching Effect of different heat treatments on contact fatigue, flexural fatigue and multi-impact properties. The results show that the contact fatigue strength of the thin layer softening slow reheating high concentration carbonitriding quenching is the highest when the depth of the infiltration layer is similar, the softening of the book layer is straight quenching, the slow softening of the sheet softening slow reheating is the lowest, In contrast, thin layer softening slow cooling reheat quenching flexural fatigue and multi-impact resistance highest.