Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第31卷    第7期    总第268期    2021年7月

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文章编号:1004-0609(2021)-07-1774-12
镁锂合金熔体保护和净化的研究现状与展望
徐仕豪,温 璐,彭 翔,刘文才,吴国华,丁文江

(上海交通大学 材料科学与工程学院 轻合金精密成型国家工程研究中心,上海 200240)

摘 要: 在工业轻量化日趋迫切的环境下,镁锂合金作为最轻的金属结构材料,不仅织构倾向弱,低温机械加工性好,还具有可回收利用的绿色特性,应用前景相当广阔。但是与大熔炼量高品质镁锂合金制备相关的熔体保护工艺复杂和熔体净化技术缺乏是制约其获得大规模应用的关键因素之一。本文介绍了国内外镁锂合金熔体保护和净化的研究进展,讨论了气体保护、熔剂保护和净化的作用机制,并展望了镁锂合金熔体保护和净化的未来技术发展方向。

 

关键字: 镁锂合金;熔体保护;熔剂;夹杂;净化

Research status and prospect of Mg-Li alloys melt protection and purification
XU Shi-hao, WEN Lu, PENG Xiang, LIU Wen-cai, WU Guo-hua, DING Wen-jiang

National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract:Under the increasingly urgent situation of industrial lightweighting, magnesium-lithium alloys, as the lightest metal structural materials, not only have a weak texture tendency, good low-temperature mechanical processability, but also have the green characteristics of recyclability, and have broad application prospects. However, the complicated melt protection process and the lack of melt purification technology related to the preparation of large-volume high-quality Mg-Li alloy are one of the key factors restricting its large-scale application. This paper introduces the research progress of Mg-Li alloys melt protection and purification at home and abroad, discusses the mechanisms of gas protection, flux protection and purification. We prospect the future technological development direction of Mg-Li alloys melt protection and purification as well.

 

Key words: Mg-Li alloy; melt protection; flux; impurities; purification

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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