Tribological Properties of Ti-TiC Composite Coatings on Titanium Alloys
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Published:2022-12-14
Issue:24
Volume:15
Page:8941
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ISSN:1996-1944
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Container-title:Materials
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language:en
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Short-container-title:Materials
Author:
Zhevtun Ivan G.ORCID, Gordienko Pavel S., Mashtalyar Dmitriy V.ORCID, Kulchin Yuriy N., Yarusova Sofia B.ORCID, Nepomnyushchaya Valeria A., Kornakova Zlata E., Gribanova Sofia S., Gritsuk Danil V., Nikitin Alexander I.ORCID
Abstract
The application of titanium and its alloys under friction conditions is severely restricted, owing to their poor wear resistance. The paper presents the results of studies of the composition, microstructure, and tribological properties of Ti-TiC-based composite coatings formed on titanium alloys by the electroarc treatment in an aqueous electrolyte using a graphite anode. It has been found that TiC grains have a different stoichiometry and do not contain oxygen. The grain size varies from hundreds of nanometers to tens of micrometers, and the micro-hardness of the treated surface reached the value of 29.5 GPa. The wear resistance of the treated surface increased approximately 40-fold, and the friction coefficient with steel decreased to 0.08–0.3 depending on the friction conditions. The formation of a composite material based on Ti-TiC will contribute to the effective protection of titanium alloys from frictional loads in engineering.
Funder
State Order of the Institute of Chemistry FEB RAS Far Eastern Federal University State Order of the Institute of Automation and Control Processes FEB RAS
Subject
General Materials Science
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