Effects of substrate temperature and carbon content on the structure and properties of (CrCuNbTiY) C multicomponent coatings

被引：31

作者：

Braic, V. ^{[1
]}

Parau, A. C. ^{[1
]}

Pana, I. ^{[1
]}

Braic, M. ^{[1
]}

Balaceanu, M. ^{[1
]}

机构：

[1] Natl Inst Optoelect, Magurele, Romania

来源：

SURFACE & COATINGS TECHNOLOGY | 2014年 / 258卷

关键词：

Multicomponent carbide coatings; Magnetron sputtering; Structure; Mechanical properties; Friction and wear; HIGH-ENTROPY ALLOYS; MECHANICAL-PROPERTIES; RAMAN-SPECTRA; FILMS; STRESS; MICROSTRUCTURE; BEHAVIOR; SILICON;

D O I：

10.1016/j.surfcoat.2014.07.044

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

(CrCuNbTiY)C multi-component coatings were prepared by co-sputtering of Cr, Cu, Nb, Ti and Y targets in an Ar + CH4 reactive atmosphere. The films, with two different carbon contents (C/metal ratio of about 1.1 and 2.7, respectively) were analyzed in terms of elemental and phase compositions, crystalline structure, surface and cross-section morphologies, mechanical properties and tribological performance. The influence of the substrate temperature (from 80 degrees C to 650 degrees C) on the microstructure and properties of the coatings was examined. The residual stress presented minimum values for the temperature variation range from 300 degrees C to 500 degrees C, while the film hardness monotonously increased with substrate temperature. Friction and wear performance of the coatings generally improved with increased temperature. The carbon rich films exhibited finer microstructures and superior mechanical and tribological characteristics than the almost stoichiometric ones. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：996 / 1005

页数：10

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