Title: The effect of Cr/Zr chemical composition ratios on the mechanical properties of CrN/ZrN multilayered coatings deposited by cathodic arc deposition system
Authors: Chen, Siao-Fan
Kuo, Yu-Chu
Wang, Chaur-Jeng
Huang, Sung-Hsiu
Lee, Jyh-Wei
Chan, Yu-Chen
Chen, Hsien-Wei
Duh, Jenq-Gong
Hsieh, Tsung-Eong
Department of Materials Science and Engineering
Keywords: CrN/ZrN multilayered thin film;Cathode arc deposition system;Cr/Zr atomic ratio;Adhesion property
Issue Date: 1-Sep-2013
Abstract: CrN/ZrN multilayer coatings with various Cr/Zr chemical compositions ratio were fabricated by a cathode arc deposition system. The Cr/Zr atomic ratios of the CrN/ZrN multilayer coatings were controlled, ranging from I to 2.5. The chemical composition of CrN/ZrN multilayer thin films was determined by a field emission electron probe microanalyzer (FE-EPMA). The phase composition of multilayer coatings was analyzed by a glancing angle X-ray diffractometer. Microstructures of the thin films were examined by field emission scanning electron microscopy (FE-SEM). Nanoindentation, the Daimler Benz Rockwell-C (HRC-DB) adhesion, microhardness, pin-on-disc wear tests and scratch tests were used to evaluate the hardness, adhesion, toughness and tribological properties of the thin films, respectively. It was found that the hardness and tribological properties were strongly influenced by the Cr/Zr chemical composition ratios of the CrN/ZrN multilayer coatings. Optimal mechanical properties and the maximum hardness of 28 GPa were achieved for the coating when the Cr/Zr atomic ratio was 2.1. (C) 2012 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.surfcoat.2012.03.002
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2012.03.002
Volume: 231
Begin Page: 247
End Page: 252
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