The effect of laser beam processing on the properties of WC-Co coatings deposited on steel
Authors:
- Norbert Radek,
- Janusz Konstanty,
- Jacek Pietraszek,
- Łukasz J. Orman,
- Marcin Szczepaniak,
- Damian Przestacki
Abstract
The main objective of the present work is to determine the effects of laser processing on properties of WC-Co electro-spark deposited (ESD) coatings on steel substrates. Tungsten carbide coatings have been applied to steel substrates using a manual electrode feeder, model EIL-8A. The laser beam processing (LBP) of electro-spark coatings was performed using an Nd:YAG fiber laser. The microstructure and properties of laser treated/melted coatings were evaluated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), surface geometric structure (SGS) and roughness measurements and adhesion, microhardness, residual stresses, corrosion resistance and application tests. The obtained experimental data were subjected to statistical analysis and multidimensional numerical and visual exploratory techniques. It has been shown conclusively that the laser-treated ESD WC-Co coatings are characterized by lower microhardness, higher resistance to corrosion, increased roughness and better adhesion to the substrate. LBP homogenizes the chemical composition, refines the microstructure and heals microcracks and pores of ESD coatings. The laser treated ESD WC-Co coatings can be used in frictional sliding nodes (e.g., on the front seal rings used in pumps) and as protective layers.
- Record ID
- CUT6ce49ff9fd104e72bc7bd42008d1a046
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2021
- Vol
- 14
- No
- 3
- Pages
- [1-21]
- Article number
- 538
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 20-21; Bibliografia (liczba pozycji) - 45; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 14, Iss. 3, Spec. Iss.
- Substantive notes
- Spec. Iss.: Laser Treatment for Surface Layers
- Keywords in English
- WC-Co coating, ESD method, laser beam processing, pulse plasma sintering, performance characteristics
- DOI
- DOI:10.3390/ma14030538 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/14/3/538 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT6ce49ff9fd104e72bc7bd42008d1a046/
- URN
urn:pkr-prod:CUT6ce49ff9fd104e72bc7bd42008d1a046
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.