Properties of Electro-Spark Deposited Coatings Modified Via Laser Beam

The main purpose of this work was to determine the influence of laser treatment on microstructure, X-ray diffraction, microhardness, surface geometric structure, corrosion resistance, adhesion tests and tribological properties of coatings deposited on C45 carbon steel by the electro-spark deposition...

Full description

Saved in:
Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2018-09, Vol.57 (5-6), p.316-324
Main Authors: Radek, N., Scendo, M., Pliszka, I., Paraska, O.
Format: Article
Language:English
Subjects:
Adhesion tests
Carbon steel
Carbon steels
Ceramics
Characterization and Evaluation of Materials
Chemical composition
Chemistry and Materials Science
Coatings
Composites
Copper
Corrosion resistance
Corrosion tests
Degassing of metals
Diffraction
Electrostatic discharges
Glass
Hardness
Laser beams
Lasers
Materials Science
Metal powder products
Metal powders
Metallic Materials
Metallurgical analysis
Metals
Microcracks
Microhardness
Natural Materials
Organic chemistry
Powder metallurgy
Protective coatings
Sliding friction
Spark deposition
Tribology
Tungsten carbide
X-ray diffraction
X-rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The main purpose of this work was to determine the influence of laser treatment on microstructure, X-ray diffraction, microhardness, surface geometric structure, corrosion resistance, adhesion tests 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 method. The tests show that the laser-treated electro-spark deposited WC–Cu coatings are characterized by higher corrosion resistance, adhesion, surface geometric structure and seizure resistance which result from 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.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-018-9984-y