M50轴承钢热变形过程中孔洞形成及演化机制

侯志远, 刘威峰, 徐斌, 孙明月, 时婧, 任少飞

Formation and Evolution Mechanism of Voids in M50 Bearing Steel During Thermal Deformation

HOU Zhiyuan, LIU Weifeng, XU Bin, SUN Mingyue, SHI Jing, REN Shaofei

图9 M50轴承钢在1100℃变形不同程度后碳化物周围孔洞的SEM像及孔洞的体积分数和数量密度统计结果

Fig.9 SEM images of voids around carbides in M50 bearing steel after hot deformation at strains of 0.1 s-1 (a, c) and 1 s-1 (b, d) for strains of 10% (a, b) and 30% (c, d); and statistical results of volume fraction (e) and number density (f) of voids