Effect of number of layers on the toughness of TiN/TiC multilayer coatings

被引：6

作者：

Azadi, M. ^{[1
]}

Rouhaghdam, A.S. ^{[1
]}

Ahangarani, S. ^{[2
]}

Mofidi, H.H. ^{[1
]}

Valiei, M. ^{[3
]}

机构：

[1] Faculty of Engineering, Materials Engineering Department, Tarbiat Modares University, P.O. Box 14115-143, Tehran

[2] Advanced Materials and Renewable Energies Department, Iranian Research Organization for Science and Technology, P.O. Box 16536-45591, Tehran

[3] Material Science and Technology, Azad University, P.O. Box 14115-143, Tehran

来源：

International Journal of Microstructure and Materials Properties | 2014年 / 9卷 / 06期

关键词：

Elastic modulus; Hardness; Multilayer coatings; Nanoindentation; Toughness;

D O I：

10.1504/IJMMP.2014.067314

中图分类号：

学科分类号：

摘要：

The structure and mechanical properties of titanium nitride/titanium carbide multilayer coatings on H13 hot work tool steel were investigated. All coatings were deposited by the pulsed-DC plasma-assisted chemical vapour deposition. Field emission scanning electron microscopy was used to study the crystalline structure of coatings. Indentation tests were carried out by atomic force microscopy and the Vickers hardness test. The objective of this paper is to determine mechanical properties such as the hardness, the elastic modulus and the toughness of different coatings. Increasing the number of layers in multilayer coatings increased the elastic modulus, the hardness and the toughness with respect to the single-layer coatings. Superior mechanical properties such as high hardness (26.7 GPa), high elastic modulus (327.6 GPa) and high toughness (17.7 MPa.m1/2) were related to multilayer coatings with 10 layers due to the compressive residual stress. Copyright © 2014 Inderscience Enterprises Ltd.

引用

页码：500 / 515

页数：15

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