(1. 中南大學 材料科學與工程學院，長沙 410083；
2. 中南大學 輕質(zhì)高強結(jié)構(gòu)材料重點實驗室，長沙 410083)
摘 要: 鋁鋰合金具有低密度、高強度、高彈性模量和良好耐蝕性等優(yōu)點，已廣泛應用于航空航天、軍事工業(yè)等領域。本文對鋁鋰合金的發(fā)展歷程及應用情況進行概述；介紹了鋁鋰合金的制備工藝，包括熔煉鑄造法、粉末冶金法和噴射沉積法；重點對鋁鋰合金強韌化機制及方法進行歸納和總結(jié)，并對鋁鋰合金的研究和發(fā)展進行展望。
關鍵字: 鋁鋰合金；制備方法；合金化；強韌化；熱處理
（1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;
2. National Key Laboratory of Science and Technology on High-strength Structural Materials, Central South University, Changsha 410083, China）
Abstract:Aluminum-lithium alloy has the advantages of low density, high strength, high elastic modulus and good corrosion resistance, which is widely used in aerospace and military industry fields. In this paper, the development and application of Al-Li alloy were summarized. The preparation methods, such as casting, powder metallurgy, and spray deposition were introduced. The obdurability mechanism and improvement methods of aluminum-lithium alloy was reviewed. Finally, the prospects for the future development of aluminum-lithium alloy were given.
Key words: aluminum-lithium alloy; preparation method; alloying; obdurability; heat treatment
