Microstructure and corrosion behavior of the ultra-fine grained aluminum coating fabricated by friction surfacing

被引：23
|
作者：
Yu, Mingrun [1 ,2 ]
Zhang, Zili [2 ]
Zhao, Hongyun [2 ]
Zhou, Li [1 ,2 ]
Song, Xiaoguo [1 ,2 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Inst Technol Weihai, Shandong Prov Key Lab Special Welding Technol, Weihai 264209, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 250卷
关键词：
Friction surfacing; Ultra-fine grained coating; Deposition; Microstructure; Corrosion; PROCESS PARAMETERS; STEEL;
D O I：
10.1016/j.matlet.2019.05.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultra-fine grained AA6061 coating was fabricated on the Q235 substrate by friction surfacing (FS). The grains of the coating were highly refined and equaixed due to the continuous dynamic recrystallization, and the precipitations were well-redistributed. As a result, the grain size and the fraction of low angle boundaries significantly declined. The A(1)* and A(2)* shear textural components were found in the FS coating. Furthermore, the corrosion current of the coating was less than that of the base materials, and the passive potential of the coating increased. The corrosion resistance of the passive file and aluminum alloy were both promoted after FS according to the electrochemical impedance spectroscopy. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：174 / 177
页数：4
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