GCr15轴承钢中渗碳体粒径的调控对其硬度的影响

刘晶, 李云杰, 秦煜, 李琳琳

Influence of Particle Size Control of Cementite on Hardness of GCr15 Bearing Steel

LIU Jing, LI Yunjie, QIN Yu, LI Linlin

图5 二次淬火+低温回火后GCr15轴承钢的SEM照片

Fig.5 SEM images of GCr15 bearing steel after secondary quenching and low-temperature tempering treatment(a) QT1, (b) QT2, (c) QT3, (d) QT4