Study on Decarburization Mechanism and Law of GCr15 Bearing Steel during Heat Treatment

Figure 9

Optical micrographs of decarburized surface of Cr15 bearing steel heated at the temperature of 810°C for (a) 20 min, (b) 30 min, (c) 40 min, (d) 50 min, (e) 60 min, and (f) 70 min. Scale bar corresponds to 100 μm.

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