锂作为合金化元素在铝基合金中得到了比较广泛的使用。对 Al—Cu—Li系三元和更多元的合金的时效与机械性能的研究已经是很详细了,在这个合金的基础上,苏联和其他国家研制了在室温和高温下使用的高强度合金,也介绍了锂对其他系铝合金的机械性能所产生的良好作用, Lithium as an alloying element in aluminum-based alloys has been more widely used. The study of the aging and mechanical properties of Al-Cu-Li based ternary and more diverse alloys has been done in great detail. On the basis of this alloy, the Soviet Union and other countries have developed high-strength Alloy, also introduced the good effect of lithium on the mechanical properties of other aluminum alloys,