【摘要】 铝锂合金是航空航天理想的结构材料。分析了不同厚度的铝锂合金厚板的成分特征，归纳了铝锂合金淬透性与成分的相关性，总结了铝锂合金薄板与厚板的性能差异、厚板不同厚度层的力学性能及其各向异性和相应的金相组织、织构及析出相分布的差异，并提出了铝锂合金厚板材料需重点关注的几个问题。更多还原

【Abstract】 Al-Li alloys are ideal structural materials for aerospace. In this paper, the composition characteristics of Al-Li alloys with different thicknesses were first analyzed. The relation between hardenability and composition was concluded, the mechanical property difference between sheet and plate and the mechanical property distribution and anisotropy characteristics at different layers through thickness in the plate were summarized. In addition, the corresponding differences of metallographic structures, textures and precipitate distribution were expounded. Furthermore, some key problems of Al-Li alloy plate were put forward.更多还原