Published July 15, 2014 | Version v1
Journal article

Ion beam analysis, corrosion resistance and nanomechanical properties of TiAlCN/CNx multilayer grown by reactive magnetron sputtering

  • 1. Departamento de Ingeniería de Proyectos, CUCEI, Universidad de Guadalajara, J. Guadalupe Zuno 48, Los Belenes, Zapopan, Jal. 45101 (Mexico)
  • 2. Instituto de Física, UNAM, Avenida de la Investigación S/N, Coyoacán, Mexico, DF 04510 (Mexico)
  • 3. ESIME-Z, Instituto Politécnico Nacional, ALM Zacatenco, Mexico, DF 07738 (Mexico)
  • 4. Thin Films Physics Division, IFM, Linköping University, SE-58183 Linköping (Sweden)

Description

A novel TiAlCN/CNx multilayer coating, consisting of nine TiAlCN/CNx periods with a top layer 0.5 μm of CNx, was designed to enhance the corrosion resistance of CoCrMo biomedical alloy. The multilayers were deposited by dc and RF reactive magnetron sputtering from Ti0.5Al0.5 and C targets respectively in a N2/Ar plasma. The corrosion resistance and mechanical properties of the multilayer coatings were analyzed and compared to CoCrMo bulk alloy. Ion beam analysis (IBA) and X-ray diffraction tests were used to measure the element composition profiles and crystalline structure of the films. Corrosion resistance was evaluated by means of potentiodynamic polarization measurements using simulated body fluid (SBF) at typical body temperature and the nanomechanical properties of the multilayer evaluated by nanoindentation tests were analyzed and compared to CoCrMo bulk alloy. It was found that the multilayer hardness and the elastic recovery are higher than the substrate of CoCrMo. Furthermore the coated substrate shows a better general corrosion resistance than that of the CoCrMo alloy alone with no observation of pitting corrosion

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nimb.2013.12.040

Additional details

Identifiers

DOI
10.1016/j.nimb.2013.12.040;
PII
S0168-583X(14)00132-3;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms
Journal Volume
331
Journal Page Range
p. 134-139
ISSN
0168-583X
CODEN
NIMBEU

Conference

Title
11. European conference on accelerators in applied research and technology
Dates
8-13 Sep 2013
Place
Namur (Belgium)

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.