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6 变形温度1100℃和应变50%时不同应变速率下热变形后M50轴承钢中碳化物周围孔洞的SEM像及孔洞的体积分数和数量密度统计结果
Fig.6 SEM images of voids around carbides in M50 bearing steel after hot deformation at strain rates of 0.001 s-1 (a), 0.01 s-1 (b), 0.1 s-1 (c), and 1 s-1 (d) at temperature of 1100oC and strain of 50%, and statistical results of the volume fraction and number density of voids (e)