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[31290] Artykuł:

The electro-spark deposited WC-Cu coatings modified by laser treatment

Czasopismo: Archives of Metallurgy and Materials   Tom: 60, Zeszyt: 4, Strony: 2579-2584
ISSN:  1733-3490
Wydawca:  POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST METALL & MATER SCI PAS, PL, 00-901 WARSZAWA, POLAND
Opublikowano: 2015
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Procent
udziału
Liczba
punktów
Norbert Radek orcid logoWMiBMKatedra Inżynierii Eksploatacji i Przemysłowych Systemów Laserowych*3330.00  
Janusz Konstanty33.00  
Mieczyslaw Scendo33.00  

Grupa MNiSW:  Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A)
Punkty MNiSW: 30
Klasyfikacja Web of Science: Article


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Keywords:

electro-spark deposition  laser treatment  powder metallurgy  coating  properties 



Abstract:

The main objective of the present work was to determine the influence of laser treatment on microstructure, X-ray diffraction, microhardness, surface geometric structure and roughness, corrosion resistance and tribological properties of coatings deposited on C45 carbon steel by the electro-spark deposition (ESD) process. The studies were conducted using WC-Cu electrodes produced by the powder metallurgy route. The tests show that the laser-treated electro-spark deposited WC-Cu coatings are characterized by higher corrosion resistance, surface roughness and seizure resistance which come at the expense of lower microhardness. The laser treatment process causes the homogenization of the chemical composition, structure refinement and healing of microcracks and pores of the electro-spark deposited coatings. Laser treated ESD coatings can be applied in sliding friction pairs and as protective coatings.