High temperature oxidation behaviour of Ag-36.35 wt.% Zn and Ag-38.50 wt.% Zn-0.60 wt.% Al

被引：5

作者：

Chandra-ambhorn, S. ^{[1
]}

Chumpanya, P. ^{[1
]}

机构：

[1] King Mongkuts Univ Technol North Bangkok, High Temp Corros Res Ctr, Dept Mat & Prod Technol Engn, Fac Engn, 1518,Pracharat 1 Rd, Bangkok 10800, Thailand

来源：

CORROSION SCIENCE | 2018年 / 131卷

关键词：

Ag-Zn; Ag-Zn-Al; High temperature corrosion; Oxidation; AZ91D MAGNESIUM ALLOY; DEGREES-C; SOLUBILITY LIMIT; AG; KINETICS; MICROSTRUCTURE; ADHESION; STEELS; STEAM; O-2;

D O I：

10.1016/j.corsci.2017.11.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ag-36.35 wt.% Zn and Ag-38.50 wt.% Zn-0.60 wt.% Al were oxidised in air at 450-650 degrees C up to 48 h. The oxidation kinetics of both alloys were parabolic with the lower rate constant for the latter alloy. After oxidation for 48 h, thermal oxide scale on Ag-36.35 wt.% Zn was ZnO at all studied temperatures. When 0.60 wt.% Al was added to Ag-38.50 wt.% Zn, ZnO and ZnAl2O4 were formed at all studied temperatures. Al2O3 was evidently observed at 550 and 650 degrees C. The formation of Al-containing oxides helped reduce the oxidation rate of Ag-38.50 wt.% Zn-0.60 wt.% Al.

引用

页码：38 / 44

页数：7

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