Zn含量对Al-Zn-Mg-Cu合金挤压棒材耐剥落腐蚀性能的影响

杨臻珅,刘胜胆,唐建国,叶凌英

Effect of Zn Content on Exfoliation Corrosion Resistance of Al-Zn-Mg-Cu Alloy Extruded Rod

Zhenshen YANG,Shengdan LIU,Jianguo TANG,Lingying YE

表1 实验用铝合金挤压棒材化学成分(%,质量分数)

Table 1 Chemical composition of the studied aluminum alloy extruded rods (%, mass fraction)

Alloys Zn Mg Cu Zr Fe Si Al 1# 8.0(7.93) 3.2(3.30) 2.2(2.19) 0.14(0.15) <0.12 <0.10 Bal. 2# 9.0(8.66) 3.2(3.13) 2.2(2.31) 0.14(0.14) <0.12 <0.10 Bal. 3# 10.0(9.85) 3.2(3.25) 2.2(2.27) 0.14(0.13) <0.12 <0.10 Bal.