Al-Mg-Li-Cu系铝合金
俄罗斯专利RU2296176中公布的这种新型Al合金中除Al外,其它主要合金成分质量分数为:1.5%-1.9%了Li,1.2%~3.5%Mg,1.4%-1.8%Cu,0.01%-1.2%Zn,0.01%-0.8%Mn,0.01%~0.25%Ti,0.005%~0.8%Si,0.005~0.4%Ce;合金中还可添加0.01%-0.3%Se,或0.003%-0.15%Zr,或0.001%~0.2%Be。该合金的热处理步骤是淬火-机械矫直-三步法时效处理。
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