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

表1 EDS晶间腐蚀点的元素成分 (atomic fraction / %)

Table 1 EDS determined compositions of the marked points in Fig.11

Element O Na Mg Al Si Cl Cr Cu Zn Point 1 2.80 - 0.09 58.84 38.21 0.06 0.01 0.05 - Point 2 1.05 - 0.11 96.47 2.17 0.08 - 0.10 0.02 Point 3 2.91 0.03 - 92.23 4.61 0.07 - 0.15 -