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.
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