EFFECTS OF Cu and Mg ON MICROSTRUCTURE AND PROPERTIES OF -Al(3-4 Wt%)Li ALLOYS

作     者：C.G.Jiao G.F. Yu and M.G. Yan(Institute of Aeronautical Materials, Beijing 100095, ) 

作者机构：Beijing Inst of Aeronautical materials Beijing China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1996年第9卷第6期

页      面：659+657-663页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Al-Li alloy microstructure and pruperty rapid solidification 

摘      要：The influences of Cu and Mg on the microstructure and properties of rapidly solidified Al(3-4 wt% )Li alloys prepared by atomization technique have been studied in the present *** results showed that additions of Cu and Mg in high lithium content RS Al-Li alloys are limited due to the formation of coarse intermetallics during solution treatment. With certain addition of Cu,Mg and conventional heat treatment, the Cu and Mg containing phase S(Al_2CuMg)was found to co-precipitate with δ (Al_3Li) in the alloys. However the acceptable combinations of strength and ductility of the alloy could not be acquired. Optimizations of Cu and Mg content added in high lithium RS Al-Li alloys are given and the reasons are discussed in detail.