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Materials 2018, 11(1), 58; doi:10.3390/ma11010058

Effect of CeO2 on Microstructure and Wear Resistance of TiC Bioinert Coatings on Ti6Al4V Alloy by Laser Cladding

1,2,* , 1
College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, China
Author to whom correspondence should be addressed.
Received: 28 November 2017 / Revised: 23 December 2017 / Accepted: 29 December 2017 / Published: 31 December 2017
(This article belongs to the Section Manufacturing Processes and Systems)
View Full-Text   |   Download PDF [6827 KB, uploaded 31 December 2017]   |  


To solve the lack of wear resistance of titanium alloys for use in biological applications, various prepared coatings on titanium alloys are often used as wear-resistant materials. In this paper, TiC bioinert coatings were fabricated on Ti6Al4V by laser cladding using mixed TiC and ZrO2 powders as the basic pre-placed materials. A certain amount of CeO2 powder was also added to the pre-placed powders to further improve the properties of the TiC coatings. The effects of CeO2 additive on the phase constituents, microstructures and wear resistance of the TiC coatings were researched in detail. Although the effect of CeO2 on the phase constituents of the coatings was slight, it had a significant effect on the microstructure and wear resistance of the coatings. The crystalline grains in the TiC coatings, observed by a scanning electron microscope (SEM), were refined due to the effect of the CeO2. With the increase of CeO2 additive content in the pre-placed powders, finer and more compact dendrites led to improvement of the micro-hardness and wear resistance of the TiC coatings. Also, 5 wt % content of CeO2 additive in the pre-placed powders was the best choice for improving the wear properties of the TiC coatings. View Full-Text
Keywords: TiC bioinert coatings; laser cladding; CeO2; microstructure; wear resistance TiC bioinert coatings; laser cladding; CeO2; microstructure; wear resistance

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Chen, T.; Liu, D.; Wu, F.; Wang, H. Effect of CeO2 on Microstructure and Wear Resistance of TiC Bioinert Coatings on Ti6Al4V Alloy by Laser Cladding. Materials 2018, 11, 58.

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