Abstract: The compositions and structures of grinding oxide films on the surface for both precise and plain bearings of GCr15 steel have been investigated by means of Auger electron spectroscopic depth profile analysis as well as deconvolution and the peak decomposition investigation of X-ray photoelectron spectroscopic depth profile. The results show that grinding oxide films are mixture of Fe and its oxide, and the bearing with superior mechanical properties possesses the thinnest oxide film.

Key words: GCr15钢, X射线光电子谱, 俄歇电子能谱, 摩削氧化膜, 轴承