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

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Authors	BURŠÍKOVÁ Vilma SOBOTA Jaroslav GROSSMAN Jan FOŘT Tomáš DUPÁK Libor ZÁBRANSKÝ Lukáš SOUČEK Pavel VAŠINA Petr BURŠÍK Jiří
Year of publication	2017
Type	Article in Proceedings
Conference	Material Structure & Micromechanics of Fracture VIII
MU Faculty or unit	Faculty of Science
Citation
Field	Plasma physics
Keywords	impact test; fracture resistance; nanoindentation; differential hardness
Description	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.
Related projects:	Lokální mikrostrukturní změny vyvolané statickou a dynamickou indentací nanostrukturovaných a nanolaminovaných povlaků