Effect of Ce(SO4)2 Additive on Coating Formed by Micro-Arc Oxidation Process on Casting Aluminum-Copper Alloy

De Feng Wu; Xiao Yan Zhang; Yuan Yuan Lei; Xiao Song Zhou

doi:10.4028/www.scientific.net/AMR.773.424

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 773Effect of Ce(SO4)2 Additive on Coating Formed by...

Effect of Ce(SO₄)₂ Additive on Coating Formed by Micro-Arc Oxidation Process on Casting Aluminum-Copper Alloy

Abstract:

Ceramic coatings were fabricated on casting aluminum-copper alloy through micro-arc oxidation by mixing Ce(SO₄)₂ into the silicate electrolyte. The effects of Ce(SO₄)₂ additive on the ceramic coatings were analyzed by means of SEM, EDX, XRD, hardness and corrosion tests. The results show that Ce(SO₄)₂ effectively promoted the reaction of the MAO coating surface, increased the thickness and hardness of the coating and enhanced the corrosion-resisting property. The optimal addition amount of Ce(SO₄)₂ in the electrolyte is 0.2g/L.

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Periodical:

Advanced Materials Research (Volume 773)

Pages:

424-428

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.773.424

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Online since:

September 2013

Authors:

De Feng Wu, Xiao Yan Zhang, Yuan Yuan Lei, Xiao Song Zhou

Keywords:

Casting Aluminum Alloy, Cerium Sulfate, Micro-Arc Oxidation

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