Preprint Article Version 1 This version is not peer-reviewed

Microstructure and Mechanical Properties of TiN/TiCN/TiC Multilayer Thin Films Deposited by Magnetron Sputtering

Version 1 : Received: 4 July 2018 / Approved: 9 July 2018 / Online: 9 July 2018 (10:41:21 CEST)

How to cite: Razmi, A.; Yeşildal, R. Microstructure and Mechanical Properties of TiN/TiCN/TiC Multilayer Thin Films Deposited by Magnetron Sputtering. Preprints 2018, 2018070127 (doi: 10.20944/preprints201807.0127.v1). Razmi, A.; Yeşildal, R. Microstructure and Mechanical Properties of TiN/TiCN/TiC Multilayer Thin Films Deposited by Magnetron Sputtering. Preprints 2018, 2018070127 (doi: 10.20944/preprints201807.0127.v1).

Abstract

Enhancement of mechanical properties by using TiN/TiCN/TiC multilayer thin films deposited on commercially pure cast Titanium (CP-Ti), Ti6Al4V and silicon (Si) substrates via magnetron sputtering technique was investigated in this study. The structural, chemical and mechanical properties of the coatings were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), nanoindentation and scratch test. Results of the XRD analysis showed reflections corresponded to FCC (1 1 1) cubic and polycrystalline structure for TiN/TiCN/TiC films. XPS analysis revealed formation of titanium nitride, titanium carbonitride and titanium carbide in the coatings. According to SEM images, the coatings demonstrated dense cross-sectional morphology and columnar structure as well as good adhesion to the substrate with a thickness of 1.77 μm deposited on silicon (1 0 0). Scratch and nanoindentation test results showed the best mechanical behavior for the coated Ti6Al4V substrate material with the 19.96 GPa hardness and 25 N critical load values, because of its higher hardness and toughness of substrate in compared to Cp-Ti substrate.

Subject Areas

magnetron sputtering; TiN/TiCN/TiC film; Cp-Ti; Ti6Al4V; adhesion; scratch; nanoindentation

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