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| High temperature oxidation resistance of CrN/(Ti,Al,Zr,Cr)N bilayer films deposited by multi-arc ion plating |
| Shi-lu Zhao1,*,Zhen Zhang2,Jun Zhang1,Jian-ming Wang1,Zheng-gui Zhang1,Shuang-hong Wang1 |
1 School of Mechanical Engineering, Shenyang University, Shenyang 110044, Liaoning, China
2 Paint Shop Planning, BMW Brilliance Automotive Ltd., Shenyang 110143, Liaoning, China |
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Abstract CrN/(Ti,Al,Zr,Cr)N bilayer films were successfully deposited on cemented carbide (WC-8%Co) substrates by multi-arc ion plating process using two Ti-Al-Zr alloy targets and one pure Cr target. As a result of bilayered structure and addition of alloying elements (e.g. Al and Cr), the films exhibited excellent high temperature oxidation resistance under both short-term isothermal (up to 800��C) and long-term cyclic (up to 600��C) exposure conditions. Combined with pre-established outstanding tribological properties (e.g. maximum hardness of 4000 HV0.01 and maximum adhesion strength over 200 N), these observations make such films quite a promising candidate to extend the cutting tool life span and boost the performance in high-productivity, high-speed and high-feed cutting or in dry machining conditions.
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Received: 25 July 2016
Published: 20 March 2017
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| Fund:Liaoning Natural Science Foundation;Shenyang Science and Technology Plan Project;Shenyang Yongyuan Guanghui Machinery Factory Transverse Project |
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Corresponding Authors:
Shi-Lu ZHAO
E-mail: zhaoshilu@sina.com
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2017, Vol. 24 
