Publication detail

MICROSTRUCTURAL CHARACTERIZATION AND WEAR BEHAVIOR OF WC-COCR COATING ON AZ91 MAGNESIUM ALLOY

BUCHTÍK, M. WASSERBAUER, J. VYKLICKÝ, O. FILIPENSKÝ, J. PTÁČEK, P.

Original Title

Type

conference paper

Language

English

Original Abstract

This paper includes the microstructural and wear characterization of WC-10Co4Cr coating on AZ91 magnesium alloy. Using the scanning electron microscopy and X-ray diffraction analysis it was determined that the microstructure was formed by WC particles, CoCr matrix, present Co3W3C mixed carbide, W2C, and free carbon. The presence of W2C and free carbon indicates the partial decarburization during the spraying process. The microhardness of HVOF-sprayed coating was 1480 ± 80 HV 0.05, which is approximately 20× higher when compared to AZ91 alloy. The friction coefficient values with the subsequent weight loss of the coating and magnesium substrate were determined. It has been proven that HVOF-sprayed WC-CoCr coating can protect the magnesium substrate from the wear.

Keywords

WC-CoCr, HVOF, AZ91 alloy, microstructure, wear

Authors

BUCHTÍK, M.; WASSERBAUER, J.; VYKLICKÝ, O.; FILIPENSKÝ, J.; PTÁČEK, P.

Released

22. 5. 2019

Publisher

TANGER Ltd.

Location

Ostrava

ISBN

978-80-87294-92-5

Book

METAL 2019, May 22 nd - 24 th 2019, Conference Proceedings

Edition

1 st Edition, 2019

Pages from

922

Pages to

927

Pages count

BibTex

@inproceedings{BUT159652,
  author="Martin {Buchtík} and Jaromír {Wasserbauer} and Ondřej {Vyklický} and Jan {Filipenský} and Petr {Ptáček}",
  title="MICROSTRUCTURAL CHARACTERIZATION AND WEAR BEHAVIOR OF WC-COCR COATING ON AZ91 MAGNESIUM ALLOY",
  booktitle="METAL 2019, May 22 nd  - 24 th 2019, Conference Proceedings",
  year="2019",
  series="1 st  Edition, 2019",
  pages="922--927",
  publisher="TANGER Ltd.",
  address="Ostrava",
  isbn="978-80-87294-92-5"
}