为了研究碳氮共渗温度对17CrNiMo6船用高速重载齿轮钢共渗层组织和摩擦磨损性能的影响，对低碳合金钢17CrNiMo6在不同温度（860℃、880℃、900 ℃）下进行碳氮共渗处理，随后利用扫描电镜和维氏硬度计分析其显微组织与硬度，并通过摩擦磨损试验机表征其摩擦磨损性能。结果表明：相较于860℃-6 h试样，当共渗温度提高至880 ℃和900 ℃时，试样表面显微硬度分别提升28.0%和46.0%，渗层厚度分别增加33.1%和63.6%。碳氮共渗温度为880 ℃时，试样表面渗层组织以马氏体为主，磨损失重为0.6 mg；在此温度下，材料强韧性匹配最佳且磨损率最低，磨损机制以粘着磨损为主，并伴随轻微的磨粒磨损，试样表现出最优耐磨性能。

To investigate the influence of carbo-nitriding temperature on the microstructure and friction and wear properties of the carbo-nitriding layer of 17CrNiMo6 marine high-speed heavy-duty gear steel, the low-carbon alloy steel 17CrNiMo6 was subjected to carbo-nitriding treatment at different temperatures (860℃, 880℃, and 900 ℃). Subsequently, its microstructure and hardness were analyzed using a scanning electron microscope and a Vickers hardness tester. And its friction and wear performance was characterized by a friction and wear testing machine. The results show that compared with the 860 ℃-6 h sample, when the co-permeation temperature is increased to 880 ℃ and 900 ℃, the microhardness of the sample surface increases by 28.0% and 46.0% respectively, and the thickness of the permeation layer increases by 33.1% and 63.6% respectively. When the carbo-nitriding temperature is 880 ℃, the infiltration layer structure on the sample surface is mainly martensite, and the wear weight loss is 0.6 mg. At this temperature, the material's strength and toughness match best and the wear rate is the lowest. The wear mechanism is mainly adhesive wear, accompanied by slight abrasive wear, and the sample exhibits the best wear resistance.