Influences of Copper Complexes on the Properties of MAO Ceramic Coating on Titanium Alloy Surface

Qiang Yao; Si Rong Yu; Hong Chao Chu

doi:10.4028/www.scientific.net/MSF.788.138

Paper Titles

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HomeMaterials Science ForumMaterials Science Forum Vol. 788Influences of Copper Complexes on the Properties...

Influences of Copper Complexes on the Properties of MAO Ceramic Coating on Titanium Alloy Surface

Abstract:

The present work focuses on the influence of copper complexes in the MAO electrolyte on the structure and wears resistance of ceramic coating on the surface of titanium alloy. The coatings composition and the morphologies were characterized using X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). It is shown that the working voltage of MAO reaction was lower after adding [Cu (NH₃)₄]²⁺ than adding EDTA-Cu. The color of ceramic coating is black (prepared in the electrolyte with [Cu (NH₃)₄]²⁺) and brown (prepared in the electrolyte with EDTA-Cu). The black coating contained rutile TiO₂, anatase TiO₂ and aluminium titanate (Al₂TiO₅), while the brown coating contained rutile and anatase only. The black coating which contained CuO compound was found to outperform brown coating in wear resistance.

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Periodical:

Materials Science Forum (Volume 788)

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138-143

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.788.138

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Online since:

April 2014

Authors:

Qiang Yao*, Si Rong Yu, Hong Chao Chu

Keywords:

Copper Complexes, MAO, Ti Alloys, Wear Resistance

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