Al-Cu-Li系合金热轧板材组织、性能和织构的研究

Study of microstructure, properties and texture of Al-Cu-Li alloys

研究了 Al-Cu-Li-( Mn) -( Zr)合金热轧板在 T8态下的显微组织、性能和织构情况。发现因合金的成分不同 ,T8处理对它们造成的影响也不同。其原因主要是由于 Mn、Zr对合金内部的再结晶过程产生了不同的影响。对热轧板的织构和性能测试结果表明 ,晶体学织构与材料的各向异性之间存在着对应关系 ,材料的塑性各向异性比强度各向异性更为严重 。

The microstructure, mechanical properties and texture of Al-Li-Cu-(Mn)-(Zr) alloys in T8 state were investigated. It was found that they are quite different from their compositions. The processing(T8) has different effects on the alloys, since the elements Mn and Zr playing an important role on recrystallization. It may be concluded that there is a correspondence relationship between the crystalline texture and the mechanical anisotropy. The experimental results also imply that the ductility anisotropy is more serious than that of the strength, and an important method for controlling crystalline texture and mechanical anisotropy is utilizing the element Mn.