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KRAJŇÁKOVÁ, P. ČUPERA, J. JAN, V. DLOUHÝ, I.
Original Title
STUDY OF THE ELECTRON BEAM REMELTING OF A CGDS DEPOSITED CONICRALY LAYERS
Type
conference paper
Language
English
Original Abstract
Cold Gas Dynamic Spraying (CGDS) method was used in order to obtain very dense and good adhesive CoNiCrAIY-coatings deposited onto nickel-based alloy and subsequently remelted by electron beam (EB) up to depth of about 90 mu m. The CGDS process-a relatively new coating technology is based on the high velocity impingement of small solid particles on the substrate. In this process, the particles are accelerated by supersonic gas jet at the heated gas temperature, which is usually lower than the melting point of the powder material. The objective of this work is to investigate the influence of the parameters used in electron beam remelting even the effect of double EB remelting on the microstructural changes and state of the coating. Changes of the coatings morphology and structure were analyzed by scanning electron microscopy (SEM) and X-ray diffraction technique (XRD). The experimental results demonstrated that there are advantages at using the pulsed EB surface modification technique. The double remelting process improved the coating properties in terms of porosity, strength and chemical homogeneity.
Keywords
Cold gas dynamic spray; electron beam remelting; CoNiCrAlY coatings; bond coat
Authors
KRAJŇÁKOVÁ, P.; ČUPERA, J.; JAN, V.; DLOUHÝ, I.
Released
24. 5. 2017
Publisher
TANGER LTD
Location
KELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH REPUBLIC
ISBN
978-80-87294-79-6
Book
METAL 2017: 26TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS
Pages from
1333
Pages to
1337
Pages count
5
BibTex
@inproceedings{BUT170083, author="Petra {Krajňáková} and Jan {Čupera} and Vít {Jan} and Ivo {Dlouhý}", title="STUDY OF THE ELECTRON BEAM REMELTING OF A CGDS DEPOSITED CONICRALY LAYERS", booktitle="METAL 2017: 26TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS", year="2017", pages="1333--1337", publisher="TANGER LTD", address="KELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH REPUBLIC", isbn="978-80-87294-79-6" }