Effect of Sputtered AlY Coating on High-Temperature Oxidation Behavior of Stainless Steel-Reference-Cited by-同舟云学术

Effect of Sputtered AlY Coating on High-Temperature Oxidation Behavior of Stainless Steel

Published:2016-08-01 Issue:7 Volume:35 Page:677-683
ISSN:0334-6455
Container-title:High Temperature Materials and Processes
language:
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Author:

Fu Guangyan¹,Xie Huanzhang²,Su Yong³,Qi Zeyan¹,Hou Qiang¹

Affiliation:

1. 1College of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China

2. 2College of Material Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China

3. 3School of Energy and Power Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China

Abstract

AbstractAlY coating on 1Cr18Ni9Ti stainless steel was prepared by magnetron sputtering method and some of them were pre-oxidized or vacuum diffusion annealed at 600°C, and the effect of the coating with different treatments on the oxidation behavior of the stainless steel was studied at 1,100°C in air. Results show that the order of the 24-h oxidation mass gain for the specimens is the stainless steel without coating > the stainless steel with coating but without any pre-treatment > the stainless steel with AlY coating after pre-oxidation treatment > the stainless steel with AlY coating after vacuum diffusion annealing. After oxidation, a thick and loose Fe2O3/Cr2O3 film is formed on the stainless steel without coating, while thinner Fe2O3/Cr2O3 film is formed on the stainless steel with AlY coating. Compared to the oxidation film formed on the steel with pre-oxidized coating, the one formed on the steel with vacuum diffusion annealed coating is thinner and denser. The rare earth Y and its oxides Y2O3 in the coating produce reactive element effect and improve the ductility/adhesion of the oxide film, which enhances the oxidation resistance of the stainless steel, especially in the vacuum diffusion annealed AlY coating.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.degruyter.com/downloadpdf/journals/htmp/35/7/article-p677.xml

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