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7 应变50%、应变速率0.1和1 s-1时不同变形温度下热变形后M50轴承钢中碳化物周围孔洞的SEM像
Fig.7 SEM images of voids around primary carbides in M50 bearing steel after hot deformation at strain rates of 0.1 s-1 (a, c, e, g) and 1 s-1 (b, d, f, h) with temperatures of 1000oC (a, b), 1050oC (c, d), 1100oC (e, f), and 1150oC (g, h) at strain of 50%