The Electro-Spark Deposited WC-Cu Coatings Modified by Laser Treatment / Powłoki WC-Cu Naniesione Elektroiskrowo I Modyfikowane Obróbką Laserową

Archives of Metallurgy and Materials

J. Konstanty¹  M. Scendo²  N. Radek³ 

[1] AGH-UNIVERSITY OF SCIENCE AND TECHNOLOGY, AL. A.MICKIEWICZA 30, 30-059 KRAKOW, POLAND;JAN KOCHANOWSKI UNIVERSITY IN KIELCE, 15G SWIETOKRZYSKA STR., 25-406 KIELCE, POLAND;TECHNICAL UNIVERSITY OF KIELCE, 1000-LECIA PANSTWA POLSKIEGO 7 AV., 25-314 KIELCE, POLAND

关键词: Keywords: electro-spark deposition;    laser treatment;    powder metallurgy;    coating;    properties;   

DOI  :  10.1515/amm-2015-0417

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

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.

【 授权许可】

Unknown