CORROSION BEHAVIOR OF SELECTED HVOF THERMALLY SPRAYED COATINGS IN AGGRESSIVE ENVIRONMENTS

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

CORROSION BEHAVIOR OF SELECTED HVOF THERMALLY SPRAYED COATINGS IN AGGRESSIVE ENVIRONMENTS

Popis výsledku v původním jazyce

Corrosion resistant coatings must exhibit high density (low porosity), good adhesion to the substrate and of course low penetration of oxides. This paper deals with corrosion resistance comparison of six corrosion resistant coatings, which are frequentlyused in power plants. The comparison of following coatings is described: two cermet coatings Cr3C2-NiCr and Cr3C2-CoNiCrAlY, one experimental coating TiMoCN-Ni, and three alloy based coatings CoCrWC (Stellite 6), Hastelloy C-276 and NiCrBSi. Each of these six coatings was evaluated using immersion corrosion tests in two selected corrosive aggressive environments. Aqueous solution of 5% H2(SO)4 and artificial seawater were selected as corrosive aggressive environments. All coatings were deposited on W.Nr. 1.0553 carbon steel using thermal spraying technology HP/HVOF (High Pressure/High Velocity Oxygen Fuel). Carbon steel was used as the base material mainly to determine if the open porosity of evaluated coatings does not pose a problem

Název v anglickém jazyce

CORROSION BEHAVIOR OF SELECTED HVOF THERMALLY SPRAYED COATINGS IN AGGRESSIVE ENVIRONMENTS

Popis výsledku anglicky

Corrosion resistant coatings must exhibit high density (low porosity), good adhesion to the substrate and of course low penetration of oxides. This paper deals with corrosion resistance comparison of six corrosion resistant coatings, which are frequentlyused in power plants. The comparison of following coatings is described: two cermet coatings Cr3C2-NiCr and Cr3C2-CoNiCrAlY, one experimental coating TiMoCN-Ni, and three alloy based coatings CoCrWC (Stellite 6), Hastelloy C-276 and NiCrBSi. Each of these six coatings was evaluated using immersion corrosion tests in two selected corrosive aggressive environments. Aqueous solution of 5% H2(SO)4 and artificial seawater were selected as corrosive aggressive environments. All coatings were deposited on W.Nr. 1.0553 carbon steel using thermal spraying technology HP/HVOF (High Pressure/High Velocity Oxygen Fuel). Carbon steel was used as the base material mainly to determine if the open porosity of evaluated coatings does not pose a problem

Druh

D - Stať ve sborníku

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

<a href="/cs/project/TA02010486" target="_blank" >TA02010486: Výzkum a vývoj žárově stříkaných povlaků pro energetický průmysl</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2014 23th International Conference on Metallurgy and Materials

ISBN

978-80-87294-54-3

ISSN

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e-ISSN

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Počet stran výsledku

1981

Strana od-do

940-946

Název nakladatele

TANGER Ltd.

Místo vydání

Ostrava, Czech Republic, EU

Místo konání akce

Hotel Voronez I, Brno, Czech Republic, EU

Datum konání akce

1. 1. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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