Oxidation behavior of the Y2O3 -modified aluminide coating on Ti-6Al-4V alloy

By using Y2O3 powder, instead of Al2O3, acting as filler, the Y2O3 was successfully dispersed in the outer layer of aluminide coatings. After oxidation, the transformation from Theta to alpha-alumina formed on the aluminide coatings using different fillers and the initial oxidation rate kinetics rel...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2007-06, Vol.458 (1-2), p.34-38
Hauptverfasser: ZHOU, W, ZHAO, Y. G, LI, W, TIAN, B, HU, S. W, QIN, Q. D
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container_issue 1-2
container_start_page 34
container_title Materials science & engineering. A, Structural materials : properties, microstructure and processing
container_volume 458
creator ZHOU, W
ZHAO, Y. G
LI, W
TIAN, B
HU, S. W
QIN, Q. D
description By using Y2O3 powder, instead of Al2O3, acting as filler, the Y2O3 was successfully dispersed in the outer layer of aluminide coatings. After oxidation, the transformation from Theta to alpha-alumina formed on the aluminide coatings using different fillers and the initial oxidation rate kinetics related to the alumina phase formed have been investigated. The results showed that the oxidation rate of Y2O3-dispersed aluminide coating in the initial 10h was about five times than that of Al2O3-dispersed aluminide coating. The tendency of the formation different alumina phases was also elucidated.
doi_str_mv 10.1016/j.msea.2007.01.111
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subjects Applied sciences
Corrosion
Corrosion mechanisms
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Physics
Surface treatments
title Oxidation behavior of the Y2O3 -modified aluminide coating on Ti-6Al-4V alloy
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