Deposition and characterization of multi-principal-element (CuSiTiYZr)C coatings

M. Braic, M. Balaceanu, A. Vladescu, C. N. Zoita, V. Braic

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Multi-principal-element (CuSiTiYZr)C coatings were prepared by co-sputtering of pure Cu, Si, Ti, Y and Zr targets in an Ar + CH 4 atmosphere, for different CH 4 /(CH 4 + Ar) flow rate ratios (0.25; 0.35; 0.50). The films were analyzed for elemental and phase composition, crystalline structure, morphology, mechanical characteristics, corrosion resistance and tribological performance. Ternary (TiZr)C coatings were also examined for comparison. The (CuSiTiYZr)C coatings were found to be amorphous, whatever the CH 4 /(CH 4 + Ar) ratio. For all the coatings, an increase in the carbon content led to an improvement of corrosion resistance, mechanical and tribological film characteristics, mainly due to the formation and development of an amorphous free-carbon phase. The (CuSiTiYZr)C coatings exhibited superior corrosion and wear behaviour, when comparing to (TiZr)C reference coatings with similar carbon content. The highest hardness (29.5 GPa), the lowest friction coefficient (∼0.15) and the best wear-corrosion resistance were measured for the (CuSiTiYZr)C coating with carbon/metal ratio of about 1.3 (CH 4 /(CH 4 + Ar) flow rate = 0.50).

Original languageEnglish
Pages (from-to)671-678
Number of pages8
JournalApplied Surface Science
Volume284
DOIs
Publication statusPublished - 1 Nov 2013
Externally publishedYes

Keywords

  • Corrosion and wear resistance
  • Magnetron sputtering
  • Multi-principal-element films

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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