航空航天铝锂合金开发及其研究进展  

Development and research progress of aerospace Al-Li alloys

作　　者：刘志鹏[1,3] 肖阳 马凯杰 廖荣跃 王俊超 孙玉峰 关绍康[1] LIU Zhi-peng;XIAO Yang;MA Kai-jie;LIAO Rong-yue;WANG Jun-chao;SUN Yu-feng;GUAN Shao-kang(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;Zhongyuan Critical Metals Laboratory,Zhengzhou University,Zhengzhou 450001,China;Zhengzhou Light Alloy Institute Co Ltd,Zhengzhou 450041,China)

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001 [2]郑州大学中原关键金属实验室,河南郑州450001 [3]郑州轻研合金科技有限公司,河南郑州450041

出　　处：《材料热处理学报》2023年第11期8-17,共10页Transactions of Materials and Heat Treatment

基　　金：预研基金(41422010607,50922010302)。

摘　　要：铝锂合金是航空航天领域的关键结构材料,微合金化和形变热处理可实现第二相细小且均匀析出,是制备高强高韧铝锂合金最有潜力的工艺方案。本文介绍了高强变形铝锂合金、铸造铝锂合金、超塑性铝锂合金等航空航天铝锂合金3个主要研究方向涉及的形变热处理、微合金化、再结晶退火等方面的研究进展,为新一代航空航天铝锂合金开发和应用提供参考。最后提出了我国在航空航天铝锂合金相关研制方面的不足以及未来的重点开发方向。Al-Li alloy is one type of the key structural materials in the field of aerospace.Microalloying and thermomechanical treatment can achieve fine and uniform precipitation of the second phase,making it the most promising process route for preparing Al-Li alloys with high strength and high toughness.This article introduces the research progress in thermomechanical treatment,microalloying and recrystallization annealing related to the three main research directions of aerospace aluminum lithium alloys,including high-strength wrought Al-Li alloys,cast Al-Li alloys and superplastic Al-Li alloys,providing reference for the development and application of the new generation of aerospace Al-Li alloys.Finally,the shortcomings in the research and development of aerospace Al-Li alloys in China and future key development directions are proposed.

关 键 词：铝锂合金 析出强化 形变热处理 微合金化 超塑性 

分 类 号：TG146.2[一般工业技术—材料科学与工程]