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Mechanical and tribological behaviour of the multilayer dry lubricant coatings with ternary composition from compound materials (TixNy; TiB2/ TixByNz; WC/ WxCyNz)

V. JINGA1, A. O. MATEESCU1,2,* , G. MATEESCU2, L. S. CRACIUN2, C. IONESCU2, C. SAMOILA1, D. URSUTIU3, D. MUNTEANU1, D. CRISTEA1

Affiliation

  1. ”Transilvania” University of Brasov, Faculty of Materials Science and Engineering, Department of Materials Science, 1 Colina Universitatii 500068 Brasov, Romania
  2. “Horia Hulubei” National Institute of Physics and Nuclear Engineering, P.O.BOX MG-6, 30 Reactorului Str. Bucharest - Magurele, Romania
  3. "Transilvania” University of Brasov Engineering, Faculty of Electrical Engineering and Computer Science, Electronics and Computer Department, 29 Eroilor Blvd., 500036 Brasov, Romania

Abstract

Multilayer Coatings with ternary compositions (TixNy; TiB2/ TixByNz; WC/ WxCyNz) for dry lubricant applications are deposited by standard and reactive DC magnetron sputtering. Two types of samples are prepared in multilayered arrangement: First sample (1) is made of one set of three layers (TixNy / TiB2/ WC). The second sample is deposited in set of three layers (TixNy/ TixByNz/ WxCyNz) repeated in five sequences (sample 2). Each layer has a constant composition and all the sequenc-es are identical. Both samples are topographically, mechanically and tribologically characterized by AFM, nanoindentation, scratching and pin-on-disk measurements. By comparison the mechanical and tribological tests prove that the hardness obtained by both testing methods is similar and the value of the friction coefficient is less than 0.2 with both measurement methods for the two investigated samples..

Keywords

Multilayer coatings; Dry lubricant coatings; Ternary composition; Wear resistance.

Submitted at: Oct. 24, 2014
Accepted at: May 7, 2015

Citation

V. JINGA, A. O. MATEESCU, G. MATEESCU, L. S. CRACIUN, C. IONESCU, C. SAMOILA, D. URSUTIU, D. MUNTEANU, D. CRISTEA, Mechanical and tribological behaviour of the multilayer dry lubricant coatings with ternary composition from compound materials (TixNy; TiB2/ TixByNz; WC/ WxCyNz), Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 5-6, pp. 773-779 (2015)