半固态7075铝合金搅拌摩擦焊接头晶间腐蚀行为研究

丁智超, 张树国, 肖晓春, 汪迪, 李文杰, 姜丽红

Intergranular Corrosion Behavior of Friction Stir Welded Joints of Semi-solid 7075 Al-alloy

DING Zhichao, ZHANG Shuguo, XIAO Xiaochun, WANG Di, LI Wenjie, JIANG Lihong

图7 焊接接头BM晶间腐蚀不同时间后的微观形貌

Fig.7 Micro-morphologies of the BM of the welded joint after intergranular corrosion for 1 h (a), 2 h (b), 4 h (c) and 6 h (d)