X-RAY DIFFRACTION STUDIES OF THE EFFECT OF PHASE COMPOSITION AND STRUCTURAL STATE CHARACTERISTICS ON THE TRIBOLOGICAL BEHAVIOR OF THE MOLYBDENUM- AND TUNGSTEN-BASED STRENGTHENING COATINGS

V. M. Avdyukhina; Авдюхина В. М.; M. M. Khrushchov; Хрущов М. М.; D. A. Sulyandziga; Суляндзига Д. А.; I. S. Levin; Левин И. С.

doi:10.31857/S0023476123700170

X-RAY DIFFRACTION STUDIES OF THE EFFECT OF PHASE COMPOSITION AND STRUCTURAL STATE CHARACTERISTICS ON THE TRIBOLOGICAL BEHAVIOR OF THE MOLYBDENUM- AND TUNGSTEN-BASED STRENGTHENING COATINGS

Autores: Avdyukhina V.¹, Khrushchov M.², Sulyandziga D.³^,2, Levin I.²
Afiliações:
1. Moscow State University, Moscow, 119991 Russia
2. Blagonravov Mechanical Engineering Research Institute, Russian Academy of Sciences, Moscow, 101990 Russia
3. Lomonosov State University, Faculty of Physics, Moscow, 119991 Russia
Edição: Volume 68, Nº 3 (2023)
Páginas: 455-464
Seção: ПОВЕРХНОСТЬ, ТОНКИЕ ПЛЕНКИ
URL: https://journals.rcsi.science/0023-4761/article/view/137423
DOI: https://doi.org/10.31857/S0023476123700170
EDN: https://elibrary.ru/XCVREJ
ID: 137423

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Resumo

A comprehensive study of phase composition, structural state, parameters of fine atomic structure, mechanical and tribological properties of molybdenum-carbon and tungsten-carbon-based coatings deposited by reactive magnetron sputtering in an acetylene-argon gas mixture has been carried out. It has been shown that the resulting coatings have a nanocomposite diamond-like carbon (DLC) structure based on the metal and the metal carbide phases with close sizes of coherently diffracting domains (CDD), approximately 3–7 nm, and on hydrogenated amorphous carbon. The coating nanohardness values were 13–15 and 20–23 GPa for the Mo-DLC and W-DLC coatings, respectively. The tribological tests have demonstrated that the Mo- and W-DLC coatings can reduce friction and effectively protect the steel surfaces hardened by them both under dry friction and under boundary lubrication conditions.

Palavras-chave

X-RAY DIFFRACTION, TRIBOLOGICAL BEHAVIOR, STRENGTHENING COATINGS

Bibliografia

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