Corrosion Wear Properties of 7055 Aluminum Alloy in 3.5% NaCl Solution

被引：0
|
作者：
Song X. [1 ]
Wang Y. [1 ]
Zhang P. [1 ]
Cao L. [1 ]
Xie Y. [1 ]
Zhao J. [1 ]
机构：
[1] School of mechanical and automotive engineering, Qingdao University of Technology, Qingdao, 266033, Shandong
来源：
Wang, Youqiang (wyq1970301@126.com) | 1600年 / Science Press卷 / 40期
基金：
中国国家自然科学基金;
关键词：
3.5%NaCl; 7055 aluminum alloy; Corrosion wear; Electrochemical corrosion; Solid solution treatment; Wear mechanism;
D O I：
10.16078/j.tribology.2019121
中图分类号：
学科分类号：
摘要：
The corrosion behavior of 7055 aluminum alloy in 3.5%NaCl solution after different solid-soluble treatment was studied. Both static and corrosion wear test were carried out, and the morphology of worn surfaces was observed by scanning electron microscope. The results showed that the corrosion resistance of the solid-soluble treatment sample was improved, and the corrosion resistance of the two-stage solid-soluble treatment sample exhibited the best corrosion resistance. The self-corrosion potential of the solid-soluble treatment sample was positively shifted, the corrosion current density was reduced, and the corrosion wear performance was improved. Under different loading potentials, the corrosion current density and wear rates increased with the increase of potential. The lowest coefficient of friction was obtained when the applied potential was -1.2 V. With the increase of potential, the interaction of corrosion and wear promoted wear of the alloy. At lower potentials, the corrosion wear mechanism of the alloy was mainly abrasive wear, while at the higher potential, the corrosion wear mechanism of the alloy was mainly adhesive wear and friction-induced corrosion wear. © 2020, Science Press. All right reserved.
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页码：73 / 81
页数：8
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