Study of high temperature interaction in the system TiC-ZrO2

Gropyanov, V. M.; Yudin, B. F.; Avgustinik, A.I.

doi:10.1007/bf01288084

Cited by 2 publications

(1 citation statement)

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“…It is noted that the original ZrO 2 and CeO 2 are not detected in the coatings, which should be attributed to a sufficient chemical reaction during the laser-cladding procedure. In fact, the following Equations (3)–(6) describe the different reactions between TiC and ZrO 2 , reported by V. M. Gropyanov [ 37 , 38 ]:

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Section: Resultsmentioning

confidence: 99%

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

Chen

Liu

et al. 2017

Materials

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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.

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