45钢块体超细晶棒材3D-SPD轧制法

林鹏程, 庞玉华, 孙琦, 王航舵, 刘东, 张喆

3D-SPD Rolling Method of 45 Steel Ultrafine Grained Bar with Bulk Size

LIN Pengcheng, PANG Yuhua, SUN Qi, WANG Hangduo, LIU Dong, ZHANG Zhe

图7 3D-SPD等效应变及等效应变随时间的变化

Fig.7 Equivalent strains in 3D-SPD process (a) and changes of equivalent strain with time (b) (r—distance between tracking point and rolling line, R—bar radius)