Effect of number of layers on the toughness of TiN/TiC multilayer coatings Online publication date: Wed, 04-Feb-2015
by M. Azadi; A.S. Rouhaghdam; S. Ahangarani; H.H. Mofidi; M. Valiei
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 9, No. 6, 2014
Abstract: 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.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Microstructure and Materials Properties (IJMMP):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook