Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/74710
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Type: Journal article
Title: Effects of TiN sublayers on the response of TiSiN nanocomposite coatings to nanoidentation and scratching contacts
Author: Wo, P.
Munroe, P.
Zhou, Z.
Li, K.
Xie, Z.
Citation: Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 2010; 527(16-17):4447-4457
Publisher: Elsevier Science SA
Issue Date: 2010
ISSN: 0921-5093
1873-4936
Statement of
Responsibility: 
P.C. Wo, P.R. Munroe, Z.F. Zhou, K.Y. Li, Z.H. Xie
Abstract: The effects of introducing thin-TiN sublayers into TiSiN nanocomposite coatings on the deformation mechanisms imparted by both uni-axial indentation and scratch contacts were evaluated by examining cross-sections of the deformed samples. Nanoindentation testing shows that the monolithic TiSiN coating is much harder than the monolithic TiN. The indentation hardness of the multilayer samples increased with the thickness of the TiSiN sublayer in the TiSiN/TiN multilayer coatings. The density of catastrophic cracks in the coatings was largely reduced when relatively ductile TiN sublayers were introduced to form the TiSiN/TiN multilayers, as a larger portion of deformation is accommodated within them. It was observed that some of the TiN grains extended into the neighboring TiSiN sublayers. The orientation of these grains helped to inhibit the growth of cracks. To summarize, the TiN sublayers helped to maintain the structural integrity by reducing the degree of catastrophic damage in the harder TiSiN sublayers. © 2010 Elsevier B.V.
Keywords: TiSiN coatings
Multilayer thin films
Transmission electron microscopy (TEM)
Nanoindentation
Deformation structure
Rights: © 2010 Elsevier B.V. All rights reserved.
DOI: 10.1016/j.msea.2010.03.100
Published version: http://dx.doi.org/10.1016/j.msea.2010.03.100
Appears in Collections:Aurora harvest
Materials Research Group publications
Mechanical Engineering publications

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