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10 热变形样品在850℃下保温1 h前后样品的SEM像
Fig.10 SEM images of thermal deformation sample before (a) and after (b) soaking at 850oC for 1 h