Study of crack resistance of TiAlN coatings by scratch testing

A. R. Shugurov; A. A. Akulinkin; A. V. Panin; V. P. Sergeev; M. P. Kalashnikov; A. V. Voronov; Chin-Hsiang Cheng

doi:10.1134/S1029959917020084

Study of crack resistance of TiAlN coatings by scratch testing

A. R. Shugurov, A. A. Akulinkin, A. V. Panin, V. P. Sergeev, M. P. Kalashnikov, A. V. Voronov, Chin-Hsiang Cheng

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

22 Citations (Scopus)

Abstract

Scratch tests were performed to study failure mechanisms in TiAlN coatings deposited on substrates from steel 12Cr18Ni9Ti. It is shown that coating failure begins with crack generation at the apices of pile-ups formed along the scratch due to plastic ploughing of the substrate material. With further increase in indentation load the failure process is governed by the competition between tensile stresses behind the indenter arising due to friction force and stresses at the contact area periphery due to coating bending under normal load. Substrate pretreatment by Ti ion beams is shown to simultaneously increase the hardness and crack resistance of TiAlN coatings.

Original language	English
Pages (from-to)	185-192
Number of pages	8
Journal	Physical Mesomechanics
Volume	20
Issue number	2
DOIs	https://doi.org/10.1134/S1029959917020084
Publication status	Published - 2017 Apr 1

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces

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abstract = "Scratch tests were performed to study failure mechanisms in TiAlN coatings deposited on substrates from steel 12Cr18Ni9Ti. It is shown that coating failure begins with crack generation at the apices of pile-ups formed along the scratch due to plastic ploughing of the substrate material. With further increase in indentation load the failure process is governed by the competition between tensile stresses behind the indenter arising due to friction force and stresses at the contact area periphery due to coating bending under normal load. Substrate pretreatment by Ti ion beams is shown to simultaneously increase the hardness and crack resistance of TiAlN coatings.",

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AU - Shugurov, A. R.

AU - Akulinkin, A. A.

AU - Panin, A. V.

AU - Sergeev, V. P.

AU - Kalashnikov, M. P.

AU - Voronov, A. V.

AU - Cheng, Chin-Hsiang

PY - 2017/4/1

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N2 - Scratch tests were performed to study failure mechanisms in TiAlN coatings deposited on substrates from steel 12Cr18Ni9Ti. It is shown that coating failure begins with crack generation at the apices of pile-ups formed along the scratch due to plastic ploughing of the substrate material. With further increase in indentation load the failure process is governed by the competition between tensile stresses behind the indenter arising due to friction force and stresses at the contact area periphery due to coating bending under normal load. Substrate pretreatment by Ti ion beams is shown to simultaneously increase the hardness and crack resistance of TiAlN coatings.

AB - Scratch tests were performed to study failure mechanisms in TiAlN coatings deposited on substrates from steel 12Cr18Ni9Ti. It is shown that coating failure begins with crack generation at the apices of pile-ups formed along the scratch due to plastic ploughing of the substrate material. With further increase in indentation load the failure process is governed by the competition between tensile stresses behind the indenter arising due to friction force and stresses at the contact area periphery due to coating bending under normal load. Substrate pretreatment by Ti ion beams is shown to simultaneously increase the hardness and crack resistance of TiAlN coatings.

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Study of crack resistance of TiAlN coatings by scratch testing

Abstract

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