Effect of Deep Cryogenic Treatment on Wear and Corrosion Resistance of an Al-Zn-Mg-Cu Alloy

被引：15
|
作者：
Siyi Ma [1 ]
Su, Ruiming [1 ]
Wang, Kaining [1 ]
Yang, Yuping [1 ]
Qu, Yingdong [1 ]
Li, Rongde [1 ]
机构：
[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China
来源：
RUSSIAN JOURNAL OF NON-FERROUS METALS | 2021年 / 62卷 / 01期
基金：
中国国家自然科学基金;
关键词：
7075 aluminum alloy; deep cryogenic treatment; microstructure; wear resistance; corrosion resistance; INTERGRANULAR CORROSION; LOCALIZED CORROSION; ALUMINUM-ALLOYS; BEHAVIOR;
D O I：
10.3103/S1067821221010144
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The 7075 aluminum alloy was subjected to deep cryogenic treatment (DCT) at -196 degrees C with liquid nitrogen for different hours. The wear and corrosion behaviors of the alloy were investigated by hardness, friction and wear, intergranular corrosion (IGC), and electrochemical corrosion tests. The microstructure of the alloy was observed by transmission electron microscope (TEM). The results showed that both the wear and corrosion resistance of the alloy treated with DCT could be improved. After the DCT 12 h, the matrix precipitates of the alloy were fine and homogeneously distributed, and the grain boundary precipitates of the alloy were discontinued, so that the alloy performed better comprehensive properties.
引用
收藏
页码：89 / 96
页数：8
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