Corrosion behavior and protective film constitution of AlNiCoFeCu and AlCrNiCoFeCu high entropy alloy coatings

被引：46

作者：

Aliyu, Ahmed ^{[1
,2
]}

Srivastava, Chandan ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India

[2] Fed Univ Wukari, Dept Chem Sci, Wukari, Nigeria

来源：

SURFACES AND INTERFACES | 2021年 / 27卷

关键词：

High entropy alloy coatings; Potentiodynamic polarization; Corrosion rate; Phase constitution; X-ray diffraction; X-ray photoelectron spectroscopy; MICROSTRUCTURE; ALUMINUM; TEMPERATURE; RESISTANCE; COMPOSITE;

D O I：

10.1016/j.surfin.2021.101481

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Corrosion behavior and protective film constitution of electrodeposited AlNiCoFeCu and AlCrNiCoFeCu high entropy alloy (HEA) coatings were investigated. The corrosion parameters determined using the potentiodynamic polarization and weight loss measurement techniques showed that the corrosion resistance of Cr-containing AlCrNiCoFeCu HEA coating is higher than that of AlNiCoFeCu HEA coating in 3.5 wt.% NaCl solution. The surface analysis showed that the Cr in AlCrNiCoFeCu HEA coating enhanced the formation of metallic oxides film, over the coating surface, that reduced ionic diffusion and improved the coating corrosion resistance of AlCrNiCoFeCu HEA when compared to the AlNiCoFeCu HEA coating.

引用

页数：8

共 29 条

[1]

Aliyu A., 2020, J ALLOYS COMPD, V864

[2] Microstructure and corrosion performance of AlFeCoNiCu high entropy alloy coatings by addition of graphene oxide [J].