Improved Thermal Stability of Al-Si Alloy Coated Steel Sheet with Cr Thin Film Deposition

We investigated the effect of Cr thin film deposition on the thermal stability and corrosion resistance of hot-dip aluminized steel. A high-quality Cr thin film was deposited on the surface of the Al-9 wt. % Si-coated steel sheets by physical vapor deposition. When the Al-Si coated steel sheets were...

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Bibliographic Details
Main Authors: Jae-Hyeon Kim, Jung-Ha Lee, Seung-Beop Lee, Sung-Jin Kim, Min-Suk Oh
Format: Article
Language:English
Published: Polish Academy of Sciences 2024-04-01
Series:Archives of Metallurgy and Materials
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Online Access:https://journals.pan.pl/Content/130926/PDF/AMM-2024-1-24-Sung-Jin%20Kim.pdf
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Summary:We investigated the effect of Cr thin film deposition on the thermal stability and corrosion resistance of hot-dip aluminized steel. A high-quality Cr thin film was deposited on the surface of the Al-9 wt. % Si-coated steel sheets by physical vapor deposition. When the Al-Si coated steel sheets were exposed to a high temperature of 500℃, Fe from the steel substrate diffused into the Al-Si coating layer resulting in discoloration. However, the highly heat-resistant Cr thin film deposited on the Al-Si coating prevented diffusion and surface exposure of Fe, improving the heat and corrosion resistances of the Al-Si alloy coated steel sheet.
ISSN:2300-1909