Study of Fracture Resistance of Nanolaminate Coatings Using Indentation and Impact Tests

Abstract:

The aim of the present work was to study the mechanical properties of thin nanocomposite Mo-B-C coatings consisting of nanocrystalline Mo₂BC embedded in amorphous Mo-B-C matrix. Magnetron sputtering of three targets, B₄C, C and Mo, was used for coatings preparation. The Mo-B-C coatings were deposited on high speed steel substrates. The fracture resistance of Mo-B-C coatings was studied by both indentation and dynamic impact tests. The impact tests enabled us to predict the load limit causing the coating destruction.

• Periodical: Solid State Phenomena (Volume 258)
• Pages: 318-321
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.258.318
• Online since: December 2016
• Authors: Vilma Buršíková, Jaroslav Sobota, Jan Grossman, Tomáš Fořt, Libor Dupák, Lukáš Zábranský, Pavel Souček, Petr Vašina, Jiří Buršík
• Keywords: Differential Hardness, Fracture Resistance, Impact Test, Nanoindentation

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