The Influence of Spraying Angle on Properties of HVOF-Sprayed Hardmetal Coatings

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

The Influence of Spraying Angle on Properties of HVOF-Sprayed Hardmetal Coatings

Popis výsledku v původním jazyce

The spraying angle is one of the deposition parameters that influence the quality of thermally sprayed coatings. In theory, decreasing the spraying angle results in lower process deposition efficiency, whereas the porosity of coatings increases, becominga cause of poorer microstructure and mechanical properties. In this study, the dependence of microstructure together with the basic mechanical properties and wear of WC-Co and Cr3C2-NiCr HVOF-sprayed coatings on the spraying angle was investigated. Foreach coating, the maximum spraying angle was determined that can be used without significantly decreasing coating quality. Based on the changes in properties of coatings and requirements for the process deposition efficiency, a maximum 30° diversion fromthe normal spray direction is recommended for WC-Co and 15° diversion for Cr3C2-NiCr coatings.

Název v anglickém jazyce

The Influence of Spraying Angle on Properties of HVOF-Sprayed Hardmetal Coatings

Popis výsledku anglicky

The spraying angle is one of the deposition parameters that influence the quality of thermally sprayed coatings. In theory, decreasing the spraying angle results in lower process deposition efficiency, whereas the porosity of coatings increases, becominga cause of poorer microstructure and mechanical properties. In this study, the dependence of microstructure together with the basic mechanical properties and wear of WC-Co and Cr3C2-NiCr HVOF-sprayed coatings on the spraying angle was investigated. Foreach coating, the maximum spraying angle was determined that can be used without significantly decreasing coating quality. Based on the changes in properties of coatings and requirements for the process deposition efficiency, a maximum 30° diversion fromthe normal spray direction is recommended for WC-Co and 15° diversion for Cr3C2-NiCr coatings.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF THERMAL SPRAY TECHNOLOGY

ISSN

1059-9630

e-ISSN

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Svazek periodika

19

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000281256800007

EID výsledku v databázi Scopus

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