Microstructure and mechanical properties of (Ti,Al,Zr)N/(Ti,Al,Zr,Cr)N films on cemented carbide substrates

Shi-lu Zhao; Jun Zhang; Zhen Zhang; Shuang-hong Wang; Zheng-gui Zhang

doi:10.1007/s12613-014-0868-y

Volume 21 Issue 1

Jan. 2014

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Abstract

International Journal of Minerals, Metallurgy and Materials > 2014 > 21(1): 77-81. > DOI: 10.1007/s12613-014-0868-y

Shi-lu Zhao, Jun Zhang, Zhen Zhang, Shuang-hong Wang, and Zheng-gui Zhang, Microstructure and mechanical properties of (Ti,Al,Zr)N/(Ti,Al,Zr,Cr)N films on cemented carbide substrates, Int. J. Miner. Metall. Mater., 21(2014), No. 1, pp.77-81. https://dx.doi.org/10.1007/s12613-014-0868-y

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Microstructure and mechanical properties of (Ti,Al,Zr)N/(Ti,Al,Zr,Cr)N films on cemented carbide substrates

Shi-lu Zhao^1,2), ,,
Jun Zhang¹⁾,
Zhen Zhang³⁾,
Shuang-hong Wang¹⁾ and
Zheng-gui Zhang¹⁾

Author Affilications

School of Mechanical Engineering, Shenyang University, Shenyang, 110044, China
Key Laboratory for Advanced Materials Preparation Technology of Liaoning Province, Shenyang University, Shenyang, 110044, China
Paint Shop, BMW Brilliance Automotive Ltd., Shenyang, 110143, China

Funds:

This work was financially supported by the Foundation of Education Department of Liaoning Province (No. L2012430), the Foundation of Science and Technology Department of Liaoning Province (No. 2011221007), and the Open Foundation of Key Laboratory for Advanced Materials Preparation Technology of Liaoning Province, China (No. 1120211406).

Received: 10 June 2013; Revised: 20 August 2013; Accepted: 25 August 2013; Available Online: 09 June 2021

Graphical Abstract

Abstract

Abstract

(Ti,Al,Zr)N/(Ti,Al,Zr,Cr)N bilayer films were deposited on cemented carbide (WC-8%Co) substrates by multi-arc ion plating (MAIP) using two Ti-Al-Zr alloy targets and one pure Cr target. To investigate the composition, morphology, and crystalline structure of the bilayer films, a number of complementary methods of elemental and structural analysis were used, namely, scanning electron microscopy (SEM), energy disperse X-ray spectroscopy (EDS), and X-ray diffraction (XRD). Adhesive strength and mechanical properties of the films were evaluated by scratch testing and Vickers microindentation, respectively. It is shown that the resulting films have a TiN-type face-centered cubic (FCC) structure. The films exhibit fully dense, uniform, and columnar morphology. Furthermore, as the bias voltages vary from −50 to −200 V, the microhardness (max. Hv_0.01 4100) and adhesive strength (max. > 200 N) of the bilayer films are superior to those of the (Ti,Al,Zr)N and (Ti,Al,Zr,Cr)N monolayer films.
- nitrides,
- thin films,
- cemented carbides,
- microstructure,
- mechanical properties

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