Study of the microhardness distribution in a coating based on tungsten carbides obtained by laser surfacing on a stainless steel surface

N. S. Dovbysh; Довбыш Н. С.; D. I. Gavrilov; Гаврилов Д. И.; A. V. Zhdanov; Жданов А. В.; V. V. Morozov; Морозов В. В.

doi:10.31857/S0367676523702812

Study of the microhardness distribution in a coating based on tungsten carbides obtained by laser surfacing on a stainless steel surface

Authors: Dovbysh N.S.¹, Gavrilov D.I.¹, Zhdanov A.V.¹, Morozov V.V.¹
Affiliations:
1. Vladimir State University
Issue: Vol 87, No 11 (2023)
Pages: 1626-1630
Section: Articles
URL: https://jdigitaldiagnostics.com/0367-6765/article/view/654564
DOI: https://doi.org/10.31857/S0367676523702812
EDN: https://elibrary.ru/FEEWHV
ID: 654564

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Abstract
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Abstract

We studied the microhardness of the wear-resistant coating obtained by laser powder surfacing on the surface of 420 stainless steel. The dependences between the treatment mode, the obtained hardness and the geometry of the coating are established. It is determined that when a total equal voltage is applied to all diodes, the generated radiation does not provide uniform penetration of the substrate, and as a result, the formation of a uniform coating, both from the point of view of geometry and from the point of view of overall surface hardness. The hardness values of both individual solid particles of tungsten carbides and the total surface of the zone of thermal influence are obtained.

Keywords

laser surfacing, protective coating, tungsten carbide, nickel powder, microhardness, normal distribution

References

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