Youngův modul a únavové chování plasmově nanesených korundových nástřiků

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F05%3A00030924" target="_blank" >RIV/61389021:_____/05:00030924 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/05:04115021 RIV/61389021:_____/05:00374706

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Young?s Modulus and Fatigue Behaviour of Plasma Sprayed Alumina Coatings

Popis výsledku v původním jazyce

Fatigue behavior and Young?s modulus of plasma sprayed gray alumina on low-carbon steel substrates were investigated. The investigation included the measurements of microhardness profile and residual stresses in coating and in substrate. Fatigued sampleswere observed with SEM to determine failure processes in the coating. The Young?s modulus of the coating was measured by the four-point bending method. Samples were tested both in tension and compression. Experiments revealed that the average fatigue lives of coated specimens were nearly 2 times longer than those of the uncoated specimens. The value of Young?s modulus of the coating varied between 27 and 53 GPa. Increase in the lifetime of coated samples was likely due to compressive residual stressesin the substrate, originating from the spray process. Failure of the coating consisted of several processes - splat cracking and/or debonding and coalescence of cracks through the voids in the coating.

Název v anglickém jazyce

Young?s Modulus and Fatigue Behaviour of Plasma Sprayed Alumina Coatings

Popis výsledku anglicky

Fatigue behavior and Young?s modulus of plasma sprayed gray alumina on low-carbon steel substrates were investigated. The investigation included the measurements of microhardness profile and residual stresses in coating and in substrate. Fatigued sampleswere observed with SEM to determine failure processes in the coating. The Young?s modulus of the coating was measured by the four-point bending method. Samples were tested both in tension and compression. Experiments revealed that the average fatigue lives of coated specimens were nearly 2 times longer than those of the uncoated specimens. The value of Young?s modulus of the coating varied between 27 and 53 GPa. Increase in the lifetime of coated samples was likely due to compressive residual stressesin the substrate, originating from the spray process. Failure of the coating consisted of several processes - splat cracking and/or debonding and coalescence of cracks through the voids in the coating.

Druh

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

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F01%2F0094" target="_blank" >GA106/01/0094: Procesy porušování termicky nanášených materiálů</a><br>

Návaznosti

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

Rok uplatnění

2005

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

14

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

231-238

Kód UT WoS článku

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EID výsledku v databázi Scopus

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