The effect of counterbody material on fretting wear behavior of the high-carbon high-chromium X210CrW12 steel before and after nitriding was investigated. The transformation of hard carbides into nitrides took place during nitriding, and these nitrides acted as new types of hard phases in the nitrided layer. Two counterbody materials (GCr15 steel ball and SiC ball) were used to conduct the fretting wear tests, which contributed to a better understanding of the role of hard phases in fretting wear. The results indicated that the unnitrided samples fretted against SiC balls with much higher hardness had a much lower wear volume and coefficient of friction (CoF), and the primary carbides acted as barriers against the plastic flow of softened matrix material. For the nitrided samples, the different hardness ratios of the two counterbody materials to the nitrides (transformed carbides) led to different wear damage modes, and the samples fretted against the steel balls had higher wear volume under the low loads of 10 N and 30 N. For the samples fretted against the two counterbody materials, the carbides (or nitrides) played different roles during fretting.

研究了配合体材料对高碳高铬X210CrW12钢渗氮前后微动磨损行为的影响。硬质碳化物在渗氮过程中转变为氮化物，这些氮化物在渗氮层中充当新型硬质相。使用两种配对材料（GCr15 钢球和 SiC 球）进行微动磨损试验，有助于更好地了解硬相在微动磨损中的作用。结果表明，未氮化的样品与硬度更高的 SiC 球摩擦时具有更低的磨损量和摩擦系数 (CoF)，并且初级碳化物充当了软化基体材料塑性流动的屏障。对于氮化样品，