Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 8, No 6 (2016)

Investigation of Characteristics of Sprayed Ni-Cr and Ni-Cr-Wc Coatings

Ovidijus Jarašūnas (Vilnius Gediminas Technical University, Lithuania)
Olegas Černašėjus (Vilnius Gediminas Technical University, Lithuania)


The article deals with the flame sprayed Ni-Cr and Ni-Cr-WC coatings on construction S235 steel substrates. Before spraying, the surfaces of substrates were treated mechanically. Using the different chemical composition of Ni-Cr and Ni-Cr-WC spraying powder and additional substrate heating till 250–290 °C, were sprayed coatings. The microstructure, porosity, hardness, elastic modulus, wear resistance of the Ni-Cr and Ni-Cr-WC coatings were investigated in the work. The influence of the chemical composition and WC content of the coatings on the various physical and tribological properties of the coatings were evaluated. Also the dependence of these coatings characteristics was investigated.

Article in: Lithuanian

Article published: 2017-01-18

Keyword(s): construction steel; Ni-Cr and Ni-Cr-WC coatings; flame spray; porosity; wear resistance.

DOI: 10.3846/mla.2016.989

Full Text: PDF pdf

Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 License.