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Study on Al-Zn Coating Structure Sprayed by Electro-arc Spraying on AZ91D Magnesium Alloy

Yi Liu

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Abstract

In order to improve the corrosion resistance and micro hardness of AZ91D magnesium,a protecting aluminum and zinc coating on the magnesium alloy surface is obtained by electro-arc spraying.The coating structure has been observed and analyzed with SEM.The result shows that the coating is made up of the mechanical mixture of aluminum and zinc.The coating combines with the base very well,and it has higher micro-hardness and the resistance corrosion of magnesium is improved greatly.

About this research paper

What this paper is about

In order to improve the corrosion resistance and micro hardness of AZ91D magnesium,a protecting aluminum and zinc coating on the magnesium alloy surface is obtained by electro-arc spraying.The coating structure has been observed and analyzed with SEM.The result shows that the coating is made up of the mechanical mixture of aluminum and zinc.The coating combines with the base very well,and it has higher micro-hardness and the resistance corrosion of magnesium is improved greatly.

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Available abstract

In order to improve the corrosion resistance and micro hardness of AZ91D magnesium,a protecting aluminum and zinc coating on the magnesium alloy surface is obtained by electro-arc spraying.The coating structure has been observed and analyzed with SEM.The result shows that the coating is made up of the mechanical mixture of aluminum and zinc.The coating combines with the base very well,and it has higher micro-hardness and the resistance corrosion of magnesium is improved greatly.

Key concepts: Coating, Materials science, Magnesium, Metallurgy, Corrosion, Magnesium alloy, Zinc, Aluminium

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