Creep in CoCrFeMnNi a compositionally complex high-entropy alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00449163" target="_blank" >RIV/68081723:_____/15:00449163 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Creep in CoCrFeMnNi a compositionally complex high-entropy alloy

Popis výsledku v původním jazyce

Understanding creep in concentrated solid solution is important for at least two reasons: (i) controversies still exist concerning the classification of solid solutions into Class I and Class II creep behaviors [1] and (ii) certain concentrated alloys often represent key constituents of high temperature engineering materials. In the present work, a compositionally complex quinary alloy, CoCrFeMnNi, which crystallizes as single FCC phase and exhibits apparent thermodynamic stability in a wide temperaturerange [2], has been investigated as a representative model system. Arc-melted and drop-cast ingots of CoCrFeMnNi with the equiatomic composition were thermo-mechanically treated prior to creep in order to obtain microstructures with grain sizes in the range 20-50 ?m. Tensile and compression tests were performed at 1073 K in range of applied stresses. Microstructures after deformation were investigated using advanced SEM and TEM techniques. Results obtained on specimens crept at 1073 K s

Název v anglickém jazyce

Creep in CoCrFeMnNi a compositionally complex high-entropy alloy

Popis výsledku anglicky

Understanding creep in concentrated solid solution is important for at least two reasons: (i) controversies still exist concerning the classification of solid solutions into Class I and Class II creep behaviors [1] and (ii) certain concentrated alloys often represent key constituents of high temperature engineering materials. In the present work, a compositionally complex quinary alloy, CoCrFeMnNi, which crystallizes as single FCC phase and exhibits apparent thermodynamic stability in a wide temperaturerange [2], has been investigated as a representative model system. Arc-melted and drop-cast ingots of CoCrFeMnNi with the equiatomic composition were thermo-mechanically treated prior to creep in order to obtain microstructures with grain sizes in the range 20-50 ?m. Tensile and compression tests were performed at 1073 K in range of applied stresses. Microstructures after deformation were investigated using advanced SEM and TEM techniques. Results obtained on specimens crept at 1073 K s

Druh

O - Ostatní výsledky

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-22834S" target="_blank" >GA14-22834S: Fázová stabilita a plasticita slitin se střední až vysokou entropií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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