Influence of high-temperature aluminizing treatment on the corrosion resistance of 90/10 copper-nickel alloy

被引：2

作者：

Gao, Yuhang ^{[1
]}

Chen, Xiaohong ^{[1
]}

Liu, Ping ^{[2
]}

Zhou, Honglei ^{[1
]}

Fu, Shaoli ^{[1
]}

Li, Wei ^{[1
]}

Liu, Xinkuan ^{[1
]}

Ma, Fengcang ^{[1
]}

Zhu, Yanbo ^{[1
]}

Wu, Jiayan ^{[1
]}

机构：

[1] USST, Sch Mat Sci & Engn, Shanghai, Peoples R China

[2] Univ Shanghai Sci & Technol, USST, Shanghai, Peoples R China

来源：

ANTI-CORROSION METHODS AND MATERIALS | 2021年 / 68卷 / 05期

关键词：

High temperature; Corrosion resistance; 90/10 copper-nickel alloy; Al-Ni phase; Aluminized layer; SUPERHYDROPHOBIC SURFACE; BEHAVIOR; MICROSTRUCTURE; OXIDATION; ALUMINUM; COATINGS; MONEL-400;

D O I：

10.1108/ACMM-04-2021-2467

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Purpose -This study aims to investigate the effect of coatings prepared by the addition of copper-aluminum alloy powder on the corrosion behavior of 90/10 copper-nickel alloy. Design/methodology/approach - Coatings of copper-aluminum alloy powder at different contents (Wt.% = 50%, 60%, 70% and 80%) were prepared by the high-temperature heat treatment process. The microstructure and component of the coatings were characterized by scanning electron microscope, X-ray diffraction, energy dispersive spectrometer and X-ray photoelectron spectroscopy. The electrochemical properties of the coating were explored by electrochemical impedance spectroscopy. Findings - The results show that the aluminized layer was successfully constructed on the surface of 90/10 copper-nickel alloy, the composition of the coating was composed of copper-aluminum phase and aluminum-nickel phase, the existence of the aluminum-nickel phase was formed by the diffusion of Ni elements within the substrate and because of the diffusion, the Al-Ni phase was distributed in the middle and bottom of the coating more. The Al-Ni phase is considered to be the enhanced phase for corrosion resistance. When the copper-aluminum alloy powder content is 70 Wt.%, the corrosion resistance is the best. Originality/value - The enhancement of corrosion resistance of 90/10 copper-nickel alloy by the copper-aluminum alloy powder was revealed, the composition of the aluminized layer and the mechanism of corrosion resistance were discussed.

引用

页码：365 / 372

页数：8

共 30 条

[1] Effect of laser treatment on morphology and corrosion behaviour of the plasma electrolytic oxidation coatings developed on aluminized steel [J].