综述了6xxx系铝合金导体材料的时效行为.微量元素Cu促进时效进程,减轻停放效应,提高峰值强度,Zr减缓时效进程,改善合金的耐热性,适量稀土对合金的性能产生好的影响.6xxx系铝合金导体材料的使用状态为β?相起主要强化作用的过时效状态.要开发出高电导率中强度铝合金导体材料,必须深入研究低Mg+ Si含量的Al-Mg-Si-RE铝合金时效行为.
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