Taking 6082 aluminum alloy as the research object,the influence of aging treatment on the structure and corrosion performance of 6082 aluminum alloy was analyzed.The 6082 aluminum alloy was treated with a solution treatment at 540 ℃ for 30min,and the relationship curve between the aging time and hardness was determined when the aging temperature was 170 ℃.The under-aging was 170 ℃,4 h,the peak-aging was 170 ℃,8 h,and the over-aging was 170 ℃,12 h,the intergranular corrosion,spalling corrosion,and stress corrosion were carried out,and the microstructure evolution law and intergranular corrosion,spalling corrosion,and stress corrosion behaviors of 6082 aluminum alloy were analyzed.The result shows that the aging treatment has a great effect on the hardness of 6082 aluminum alloy,and the surface hardness of 6082 aluminum alloy increases gradually with the increase of aging time.After reaching the peak of 8 h,the hardness began to gradually decrease as the aging time continued to increase.The aging treatment has a great impact on the corrosion performance of 6082 aluminum alloy,and the influence order on intergranular corrosion sensitivity,spalling corrosion sensitivity and stress corrosion sensitivity is basically the same,and the corrosion sensitivity is peak-aging,under-aging and over-aging from high to low.
NETL
NSTL
万方数据
