Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7893913 | Corrosion Science | 2018 | 7 Pages |
Abstract
Ag-36.35 wt.% Zn and Ag-38.50 wt.% Zn-0.60 wt.% Al were oxidised in air at 450-650 °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 °C. The formation of Al-containing oxides helped reduce the oxidation rate of Ag-38.50 wt.% Zn-0.60 wt.% Al.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
S. Chandra-ambhorn, P. Chumpanya,