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Proceedings Paper

Diode laser cladding of Co-based composite coatings reinforced by spherical WC particles
Author(s): Damian Janicki; Jacek Górka; Artur Czupryński; Waldemar Kwaśny; Marcin Żuk
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Paper Abstract

A laser cladding system consisting of a direct diode laser with the flat-top beam profile and an off-axis powder injection nozzle has been used to fabricate Co-based (Satellite 6) metal matrix composite coatings reinforced by spherical-shaped WC particles. Non-porous coatings with the WC fraction of about 50 vol.% and a low dissolution of the WC particles in the matrix have been obtained. The heat input level affects the degree of WC dissolution and the matrix mean free path between the embedded WC particles. Comparative erosion tests between the metallic Satellite 6 and composite Satellite 6/WC coatings showed that the composite coatings exhibit a superior erosion resistance only at the oblique impingement condition. Generally, a low erosion resistance of the composite coatings at the normal impingement is mainly attributed to a very smooth interface between the spherical-shaped WC particles and the matrix alloy.

Paper Details

Date Published: 8 December 2016
PDF: 10 pages
Proc. SPIE 10159, Laser Technology 2016: Progress and Applications of Lasers, 101590N (8 December 2016); doi: 10.1117/12.2261675
Show Author Affiliations
Damian Janicki, Silesian Univ. of Technology (Poland)
Jacek Górka, Silesian Univ. of Technology (Poland)
Artur Czupryński, Silesian Univ. of Technology (Poland)
Waldemar Kwaśny, Silesian Univ. of Technology (Poland)
Marcin Żuk, Silesian Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10159:
Laser Technology 2016: Progress and Applications of Lasers
Ryszard S. Romaniuk; Krzysztof Kopczynski; Jan K. Jabczyński; Zygmunt Mierczyk, Editor(s)

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