Preparation of Al Coating on Mg-Li Alloy with Molten Salt Replacement

Zhong Yi Niu; Zhi Kun Qu; Ting Tao Ma; Xiao Yan Jing

doi:10.4028/www.scientific.net/AMM.644-650.4798

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650Preparation of Al Coating on Mg-Li Alloy with...

Preparation of Al Coating on Mg-Li Alloy with Molten Salt Replacement

Abstract:

A method of molten salt replacement was used to prepare an Al coating on Mg-Li alloy at different temperatures. The thickness, microstructure, phase composition and corrosion electrochemical analysis of the coating treated at different temperatures were analyzed. The corrosion resistances of the specimens with and without optimal coating were comparatively evaluated. Results show that, the optimal treatment temperature is 350 °C, at which a thickness of 9.15 μm coating is formed. In the Al coatings, Al exists as the form of Mg₁₇Al₁₂ and AlLi. The corrosion resistance is much better than that of the specimen without coating.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

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4798-4801

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.4798

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Online since:

September 2014

Authors:

Zhong Yi Niu*, Zhi Kun Qu, Ting Tao Ma, Xiao Yan Jing

Keywords:

Coating, Corrosion Resistance, Magnesium-Lithium, Molten Salt Replacement

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