低碳钢预制涡流搅拌摩擦焊工艺研究
王启勇, 李晓博, 刘小超, 王心成, 张泰瑞, 倪中华, 陈彪

Process of Prefabricated Vortex Flow-Based Friction Stir Welding for Low Carbon Steel
WANG Qiyong, LI Xiaobo, LIU Xiaochao, WANG Xincheng, ZHANG Tairui, NI Zhonghua, CHEN Biao
图4 不同焊速区间下试样#4和#5截面的OM像
Fig.4 Cross-sectional low (a-f) and high (g, h) magnified OM images of sample #4 (a-e, g) and sample #5 (f, h) under different welding speed intervals
(a) start position (b) 10 mm/min (c) 20 mm/min (d, g) 30 mm/min (e) end position (f, h) 20 mm/min