超声振动对镁/铝异质合金搅拌摩擦搭接焊接头界面组织演变的影响

阴嘉琳, 石磊, 武传松

Effect of Ultrasonic Vibration on Microstructure Evolution at the Mg/Al Dissimilar Alloy Friction Stir Welded Lap Joint Interface

YIN Jialin, SHI Lei, WU Chuansong

图4 焊缝匙孔样品切取示意图

Fig.4 Schematics of keyhole sample extraction from the lap joint (WD—welding direction, LS—leading side, TS—trailing side) (a) overview of sample extraction (b) sample extraction around the keyhole center at 0°, 90°, 180°, and 270° (c) sample extraction along the original lap surface