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Morphology and phase composition of MAO ceramic coating containing Cu on Ti6Al4V alloy

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Abstract

A ceramic coating containing Cu element was prepared on Ti6Al4V alloy using micro-arc oxidation (MAO) technology. After copper ions were added to the electrolyte solution of aluminate salt, the anode voltage in MAO process reduces, and the micropore size on the surface of the ceramic coating is more uniform. The crystalline phases of the ceramic coatings prepared in the electrolyte solutions with and without copper ions are mainly Ti element, rutile TiO2, and anatase TiO2. The addition of copper ions to the electrolyte solution makes rutile TiO2 content decrease but promotes the formation of Al2TiO5 phase. Energy spectrum test results confirm that by adding copper ions to the electrolyte solution, the ceramic coating formed in the process of MAO contains copper element.

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Acknowledgments

This work was financially supported by Shandong Provincial Natural Science Foundation of China (No. ZR2011EMM015), the Doctoral Program of Higher Education of the Ministry of Education of the Special Research Fund (No. 20110133110003), and China University of Petroleum (Huadong) Graduate Innovative Funding Projects (No. CX-1236).

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  1. College of Mechanical and Electrical Engineering, China University of Petroleum (Huadong), Qingdao, 266580, China

    Si-Rong Yu, Qiang Yao & Hong-Chao Chu

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  1. Si-Rong Yu
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  2. Qiang Yao
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  3. Hong-Chao Chu
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Correspondence to Si-Rong Yu.

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Yu, SR., Yao, Q. & Chu, HC. Morphology and phase composition of MAO ceramic coating containing Cu on Ti6Al4V alloy. Rare Met. 36, 671–675 (2017). https://doi.org/10.1007/s12598-014-0291-6

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  • DOI: https://doi.org/10.1007/s12598-014-0291-6

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