摘要
研究了缓饱和时效工艺（ＤＳＡ） 对超高强铝合金强度和抗腐蚀性能的影响。ＤＳＡ处理可使超高强铝合金获得理想的性能（ 屈服强度比７１５０Ｔ７７ 合金提高５ ％） ， 且抗应力腐蚀性能相对峰值时效后的Ｔ６ 状态得到明显改善。同时讨论了ＤＳＡ处理改善合金强度和抗蚀性能的机理。
Abstract: The effect of the desaturation aging (DSA) treatment on the strength and the corrosion resistance of ultra high strength aluminium alloys were studied. The results showed that the ideal strength of ultra high strength aluminium alloys can be obtained by DSA treatment (about 10% greater yield strength than 7150T77 alloy), and the stress corrosion resistance relates to the peak strength T6 type tempers was obvious improved. The principle of improving the strength and corrosion resistance of the alloy by DSA treatment was discussed.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
1999年第6期414-416,共3页
Chinese Journal of Rare Metals
关键词
超高强铝合金
缓蚀和时效
应力腐蚀
铝合金
Ultra high strength aluminium alloy, Desaturation aging, Stress corrosion
