Nanoscratch behaviour, structure and nanoindentation of multilayer TiN/CrN coatings

Manohar S. Konchady; Sergey Yarmolenko; Pai M. Devdas; Jagannathan Sankar; Alexander V. Kvit

doi:10.1504/IJSURFSE.2008.022284

Nanoscratch behaviour, structure and nanoindentation of multilayer TiN/CrN coatings

Manohar S. Konchady
, Sergey Yarmolenko
, Pai M. Devdas
, Jagannathan Sankar
, Alexander V. Kvit

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The nanoscratch behaviour of TiN/CrN nanolaminates has been investigated in the present study. The critical load (LcSUB align=rightL) during the loading process characterises the fracture resistance of the coating, whereas that during unloading (LcSUB align=rightU), characterises the adhesion strength between the coating and the substrate. For all coatings, the nanoscratch profiles indicate three distinct regimes: elastic deformation, elastic plastic deformation and delamination with material removal. Multilayer coatings show significantly higher critical loads than monolayer coatings. SEM characterisation indicates the cracking mechanisms are different for monolayer and multilayer coatings explaining why the multilayer coatings withstand higher critical loads. © Copyright 2008, Inderscience Publishers.

Original language	English
Pages (from-to)	439-456
Number of pages	18
Journal	International Journal of Surface Science and Engineering
Volume	2
Issue number	6
DOIs	https://doi.org/10.1504/IJSURFSE.2008.022284
State	Published - Jan 1 2008

Keywords

Delamination
Nanoindentation
Nanoscratch
Residual stress
TiN/CrN nanolaminates
X-ray Diffraction
XTEM

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10.1504/IJSURFSE.2008.022284

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title = "Nanoscratch behaviour, structure and nanoindentation of multilayer TiN/CrN coatings",

abstract = "The nanoscratch behaviour of TiN/CrN nanolaminates has been investigated in the present study. The critical load (LcSUB align=rightL) during the loading process characterises the fracture resistance of the coating, whereas that during unloading (LcSUB align=rightU), characterises the adhesion strength between the coating and the substrate. For all coatings, the nanoscratch profiles indicate three distinct regimes: elastic deformation, elastic plastic deformation and delamination with material removal. Multilayer coatings show significantly higher critical loads than monolayer coatings. SEM characterisation indicates the cracking mechanisms are different for monolayer and multilayer coatings explaining why the multilayer coatings withstand higher critical loads. {\textcopyright} Copyright 2008, Inderscience Publishers.",

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author = "Konchady, \{Manohar S.\} and Sergey Yarmolenko and Devdas, \{Pai M.\} and Jagannathan Sankar and Kvit, \{Alexander V.\}",

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AU - Yarmolenko, Sergey

AU - Devdas, Pai M.

AU - Sankar, Jagannathan

AU - Kvit, Alexander V.

PY - 2008/1/1

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AB - The nanoscratch behaviour of TiN/CrN nanolaminates has been investigated in the present study. The critical load (LcSUB align=rightL) during the loading process characterises the fracture resistance of the coating, whereas that during unloading (LcSUB align=rightU), characterises the adhesion strength between the coating and the substrate. For all coatings, the nanoscratch profiles indicate three distinct regimes: elastic deformation, elastic plastic deformation and delamination with material removal. Multilayer coatings show significantly higher critical loads than monolayer coatings. SEM characterisation indicates the cracking mechanisms are different for monolayer and multilayer coatings explaining why the multilayer coatings withstand higher critical loads. © Copyright 2008, Inderscience Publishers.

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KW - Nanoindentation

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KW - X-ray Diffraction

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Nanoscratch behaviour, structure and nanoindentation of multilayer TiN/CrN coatings

Abstract

Keywords

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