Microstructure and Selected Properties of CrC-NiCr Coatings Obtained by HVOF on Magnesium Alloy Substrates.

Materials (Basel)

Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego St. 18a, 44-100 Gliwice, Poland.

Published: June 2020

In present work the CrC-NiCr coating was deposited on magnesium alloy substrate with high velocity oxygen fuel (HVOF) spraying. The microstructure of the samples has been characterized by means of electron microscopy, SEM and phase composition analysis carried out. The porosity of coatings has been also estimated. Finally, tests of selected mechanical properties, such as instrumented indentation, abrasive erosion have been performed. The results of the investigations confirmed that dense, homogeneous and well-adhered CrC-NiCr cermet coating is possible to obtain onto the magnesium AZ31 alloy substrate. Moreover, the coatings exhibit high resistance to erosion.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7345897PMC
http://dx.doi.org/10.3390/ma13122775DOI Listing

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