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5 试样#5顶部位置、中部位置及底部弱连接区域的SEM像

Fig.5 Low (a-c) and locally high (d-f) magnified SEM images of kissing bond regions at top (a, d), middle (b, e), and bottom (c, f) of the samples #5 (Dotted lines in Figs.5c and f represent boundaries of unbonded region)