Metallurgical and mechanical characterization of TiCN/TiAlN and TiAlN/TiCN bilayer nitride coatings

被引：26
作者：
Kumar, T. Sampath [1 ]
Jebaraj, A. Vinoth [1 ]
Shankar, E. [2 ]
Tamiloli, N. [3 ]
Sivakumar, K. [4 ]
机构：
[1] Vellore Inst Technol, Sch Mech Engn, Vellore, Tamil Nadu, India
[2] Rajalakshmi Engn Coll, Dept Mech Engn, Chennai, Tamil Nadu, India
[3] KL Univ, Dept Mech Engn, Vaddeswaram, Andhra Pradesh, India
[4] Valliammai Engn Coll, Dept Mech Engn, Chennai, Tamil Nadu, India
来源：
SURFACES AND INTERFACES | 2019年 / 15卷
关键词：
TiCN; TiAlN; SEM; XRD; AFM; nanoindentation; MULTILAYER COATINGS; TIALN/CRN COATINGS; PVD COATINGS; TIN; PERFORMANCE; TOOL; MICROSTRUCTURE; THICKNESS; TICN; ARCHITECTURE;
D O I：
10.1016/j.surfin.2019.03.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the present work, attempt has been made to analyse the metallurgical and mechanical characterization of Titanium Carbonitride (TiCN) and Titanium Aluminium Nitride (TiAlN) duplex coatings. TiCN/TiAlN and TiAlN/TiCN bilayer combinations were deposited on cemented carbide cutting insert substrates by means of the cathodic arc physical vapour deposition (CAPVD) process. The metallography analysis revealed a highly densed uniform structure and a fewer voids for the TiAlN/TiCN bilayer coating when compared to TiCN/TiAlN combination. Nano-indentation analysis was performed for the assessment of the surface hardness of the coatings followed by the measurement of adhesive strength through use of a scratch tester. The TiAlN/TiCN bilayer coating revealed a higher hardness and greater adhesion strength than the TiCN/TiAlN bilayer coating. Roughness parameters of the coated films were obtained using atomic force microscopy (AFM). TiAlN/TiCN bilayer coating showed a smooth surface, when compared to TiCN/TiAlN bilayer coating.
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页码：256 / 264
页数：9
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