Published date:Apr 15 2019

Journal Title: KnE Engineering

Issue title: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”

Pages:246–252

DOI: 10.18502/keg.v1i1.4416

M.A. Eryomina

S.F. Lomayeva

S.L. Demakov

A.S. Yurovskikh

The TiC-copper and Ti2CH0.6-TiC-intermetallic Cu-Ti composites were produced using high-energy wet ball milling of Ti-Cu-graphite and Ti-Cu-surfactant powders, respectively, followed by spark plasma sintering at 900∘С. The composites were shown to be of 91-92% in density as compared with the theoretical value, microhardness of 6-7 GPa, and elasticity modulus of 134-140 GPa. The tribological properties of the composites were shown to depend on the phase composition. Surfactant addition resulted in higher fretting resistance against tempered steel (С-1%, Сr-1.5%) due to the formation of hexagonal titanium carbohydride and higher abrasive wear resistance.

Keywords: titanium carbide; titanium carbohydride, composite; ball milling; spark plasma sintering

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