STUDY OF THE ELECTRON BEAM REMELTING OF A CGDS DEPOSITED CONICRALY LAYERS

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

STUDY OF THE ELECTRON BEAM REMELTING OF A CGDS DEPOSITED CONICRALY LAYERS

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

STUDY OF THE ELECTRON BEAM REMELTING OF A CGDS DEPOSITED CONICRALY LAYERS

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2017: 26TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS

ISBN

978-80-87294-79-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

1333-1337

Název nakladatele

TANGER LTD

Místo vydání

KELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH RE

Místo konání akce

Brno

Datum konání akce

24. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000434346900214