Research progress on effects of Sc and Zr microalloying on microstructure and properties of Al-Zn-Mg-(Cu) alloys

被引：0
|
作者：
Wu H.-L. [1 ]
Chen Y.-Q. [1 ]
Lin L. [2 ]
Lu D.-D. [1 ]
机构：
[1] Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, Hunan University of Science and Technology, Xiangtan
[2] Southwest Aluminum Industry Group Co., Ltd., Chongqing
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2023年 / 33卷 / 11期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Al-Zn-Mg-(Cu) alloy; corrosion resistance; mechanical property; microalloying; microstructure;
D O I：
10.11817/j.ysxb.1004.0609.2023-44148
中图分类号：
学科分类号：
摘要：
Sc and Zr microalloying of Al-Zn-Mg- (Cu) alloy can significantly improve the comprehensive properties, and is one of the effective methods to develop a new generation of aerospace aluminum alloys. In this paper, the researches of Zr and Sc microalloying of Al-Zn-Mg-(Cu) alloy were reviewed, focusing on the effects of Sc and Zr microalloying on the microstructure, mechanical properties and corrosion resistance of Al-Zn-Mg-(Cu) alloy. It was found that Sc and Zr microalloying can refine the grain size of Al-Zn-Mg-(Cu) alloy and effectively improve the mechanical properties and corrosion resistance of the alloy. The mechanisms of adding Zr and Sc separately and adding Zr and Sc together in Al-Zn-Mg-(Cu) alloy were reviewed, and it was found that Al3Zr, Al3Sc and Al3(Sc, Zr) phases were the main reasons for the improvement of the properties of the alloys. Finally, according to the existing research, the research directions of Zr and Sc microalloying of Al-Zn-Mg-(Cu) alloy were proposed. © 2023 Central South University of Technology. All rights reserved.
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页码：3689 / 3708
页数：19
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