Tribological properties of metal-matrix composite materials reinforced by superelastic hard carbon particles
- Authors: Ushakova I.N.1, Drozdova E.I.1, Chernogorova O.P.1, Blinov V.M.1, Ekimov E.A.2
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Affiliations:
- Baikov Institute of Metallurgy and Materials Science
- Vereshchagin Institute of High-Pressure Physics
- Issue: Vol 2016, No 5 (2016)
- Pages: 413-418
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/170523
- DOI: https://doi.org/10.1134/S0036029516050128
- ID: 170523
Cite item
Abstract
Metal-matrix composite materials (CMs) are synthesized from a mixture of a metal powder (Ti, Fe, Co, Ni, Cu, Al-based alloy) and fullerenes (10 wt %). The thermobaric synthesis conditions (700–1000°C, 5–8 GPa) ensure the collapse of fullerene molecules and their transformation into superelastic carbon phase particles with an indentation hardness HIT = 10–37 GPa, an elastic modulus EIT = 60–260 GPa, and an elastic recovery of >80% upon indentation. After reinforcing by superelastic hard carbon, the friction coefficient of CM decreases by a factor of 2–4 as compared to the friction coefficient of the matrix metal, and the abrasive wear resistance increases by a factor of 4–200. Superelastic hard carbon particles are a unique reinforcing material for an increase in the wear resistance and a simultaneous decrease in the friction coefficient of CM.
About the authors
I. N. Ushakova
Baikov Institute of Metallurgy and Materials Science
Email: drozdova@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
E. I. Drozdova
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: drozdova@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
O. P. Chernogorova
Baikov Institute of Metallurgy and Materials Science
Email: drozdova@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
V. M. Blinov
Baikov Institute of Metallurgy and Materials Science
Email: drozdova@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
E. A. Ekimov
Vereshchagin Institute of High-Pressure Physics
Email: drozdova@imet.ac.ru
Russian Federation, Troitsk, Moscow, 142190