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

表1 3D-SPD与传统斜轧法工艺参数[26]对比

Table 1 Comparisons of parameters between 3D-SPD and traditional cross-rolling[26]

Process α / (°) β / (°) Reduction rate / % Ovality factor 3D-SPD 4-6 20-24 35-55 1.02-1.05 Traditional cross-rolling[26] 1-3 8-15 ±5-10 1.10-1.20