摘要：Gas multi-elements Penetration is a new surface hardening technology to improve the performance of the surface.In this paper, we focus on the study on the influence of multi-elements penetration on hardness of GCr15 bearing steel surface by C-N-O multi-elements penetrating treatment, and analyze the three elements, C, N and O in the surface with an EDX. Analysis of SEM images shows that there forms a penetrated layer 75 μ m or so in thickness over the surface, in which,0-30 μ m is the passivation layer, 30-60 μ m, the bright layer, and 60-75, the transition layer.

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