DYNAMIC IMPACT WEAR AND IMPACT RESISTANCE OF W-B-C COATINGS

Authors

  • Josef Daniel Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, Brno 612 64, Czech Republic
  • Jan Grossman Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, Brno 612 64, Czech Republic
  • Vilma Buršíková Masaryk University, Faculty of Science, Department of Physical Electronics, Kotlárská 2, Brno 611 37, Czech Republic
  • Lukáš Zábranský Masaryk University, Faculty of Science, Department of Physical Electronics, Kotlárská 2, Brno 611 37, Czech Republic
  • Pavel Souček Masaryk University, Faculty of Science, Department of Physical Electronics, Kotlárská 2, Brno 611 37, Czech Republic
  • Saeed Mirzaei Masaryk University, Faculty of Science, Department of Physical Electronics, Kotlárská 2, Brno 611 37, Czech Republic
  • Petr Vašina Masaryk University, Faculty of Science, Department of Physical Electronics, Kotlárská 2, Brno 611 37, Czech Republic

DOI:

https://doi.org/10.14311/APP.2020.27.0037

Keywords:

Boron carbide, fracture resistance, impact resistance, impact wear, W-B-C

Abstract

Coated components used in industry are often exposed to repetitive dynamic impact load. The dynamic impact test is a suitable method for the study of thin protective coatings under such conditions. Aim of this paper is to describe the method of dynamic impact testing and the novel concepts of evaluation of the impact test results, such as the impact resistance and the impact deformation rate. All of the presented results were obtained by testing two W-B-C coatings with different C/W ratio. Different impact test results are discussed with respect to the coatings microstructure, the chemical and phase composition, and the mechanical properties. It is shown that coating adhesion to the HSS substrate played a crucial role in the coatings’ impact lifetime.

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Published

2020-06-11

How to Cite

Daniel, J., Grossman, J., Buršíková, V., Zábranský, L., Souček, P., Mirzaei, S., & Vašina, P. (2020). DYNAMIC IMPACT WEAR AND IMPACT RESISTANCE OF W-B-C COATINGS. Acta Polytechnica CTU Proceedings, 27, 37–41. https://doi.org/10.14311/APP.2020.27.0037