在人们迫切需要减轻结构重量、新型材料严重威胁铝合金在航空航天工业中的传统地位的形势下,北美、欧洲乃至东方世界的许多铝合金生产厂商目前都在积极开发铝锂合金。美国Alcoa公司已建立了一家年产2000万磅铝锂合金锭的工厂。该公司还同30多家实验室协作开展铝锂合金的测试研究工作。研究结果表明,T8E41—2090铝锂合金具有优良的可 As people urgently need to reduce the weight of their structures and new materials pose a serious threat to the traditional status of aluminum alloys in the aerospace industry, many aluminum alloy producers in North America, Europe and the Oriental world are currently actively developing aluminum-lithium alloys. Alcoa, the United States, has set up a plant capable of producing 20 million pounds of aluminum-lithium alloy ingots per year. The company also collaborates with more than 30 laboratories to conduct tests on aluminum-lithium alloys. The results show that, T8E41-2090 Al-Li alloy has excellent