Insight into multidirectional forging induced corrosion resistance evolution of Mg-Zn-Zr alloy

被引：5
作者：
Wang, Hai [1 ]
Xiao, Xuan [1 ]
Qiao, Chuang [2 ]
Wu, Di [3 ]
Wang, Youzhi [4 ]
Liu, Zhan [2 ]
Hao, Long [4 ]
机构：
[1] Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China
[2] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[4] Chinese Acad Sci, Inst Met Res, Mat Corros & Protect Ctr, Shenyang 110016, Peoples R China
来源：
MATERIALS LETTERS | 2024年 / 355卷
基金：
中国国家自然科学基金;
关键词：
Magnesium alloy; Multidirectional compression; Microstructure; Hardness; Corrosion resistance; MECHANICAL-PROPERTIES; MAGNESIUM; BEHAVIOR;
D O I：
10.1016/j.matlet.2023.135587
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The application of multidirectional forging (MDF) to collaboratively enhance the mechanical properties and corrosion resistance of Mg-Zn-Zr (ZK) alloys has garnered significant attention from the community. In this work, however, it was found that an excessive compression of ZK alloy may not facilitate a higher corrosion resistance. The reduced grain size resulting from twin cutting (positive effect) but the increased geometrically necessary dislocation density and twin boundaries after compression (negative effect) compete with each other to control the corrosion resistance of material. Therefore, the highest corrosion resistance is obtained on the ZK60 after 8 MDF cycles rather than after a higher 15 MDF cycles, emphasizing the significance of selecting appropriate MDF cycle to enhance the corrosion resistance performance of ZK alloys.
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收藏
页数：4
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