Creep damage of Al and Al-Sc alloy processed by ECAP

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00385920" target="_blank" >RIV/68081723:_____/12:00385920 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Creep damage of Al and Al-Sc alloy processed by ECAP

Popis výsledku v původním jazyce

Experiments were conducted to determine an effect of equal-channel angular pressing (ECAP) on the creep damage and the microstructure of pure aluminium and an Al-Sc alloy. The coarse-grained materials in their as-received states were subjected to ECAP atroom temperature using a die, which had a 90° angle between the channels. Creep tests in tension were performed on the as-pressed samples at 473 K under an applied stress range between 10 to 50 MPa. For comparison purposes, some creep tests were performed also on both investigated materials in their as-received states. Following ECAP and creep testing samples were prepared for examination by scanning electron microscopy (SEM) equipped with an electron back scattering diffraction (EBSD) unit. The observation of the free surfaces of the ECAP samples after creep exposure showed the occurrence of mesoscopic shear bands exceeding considerably an average grain size. The formation of these bands could be influenced by inhomogeneity of microst

Název v anglickém jazyce

Creep damage of Al and Al-Sc alloy processed by ECAP

Popis výsledku anglicky

Experiments were conducted to determine an effect of equal-channel angular pressing (ECAP) on the creep damage and the microstructure of pure aluminium and an Al-Sc alloy. The coarse-grained materials in their as-received states were subjected to ECAP atroom temperature using a die, which had a 90° angle between the channels. Creep tests in tension were performed on the as-pressed samples at 473 K under an applied stress range between 10 to 50 MPa. For comparison purposes, some creep tests were performed also on both investigated materials in their as-received states. Following ECAP and creep testing samples were prepared for examination by scanning electron microscopy (SEM) equipped with an electron back scattering diffraction (EBSD) unit. The observation of the free surfaces of the ECAP samples after creep exposure showed the occurrence of mesoscopic shear bands exceeding considerably an average grain size. The formation of these bands could be influenced by inhomogeneity of microst

Druh

O - Ostatní výsledky

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GPP108%2F10%2FP469" target="_blank" >GPP108/10/P469: Vliv výchozí krystalografické orientace na creepové chování SPD materiálů</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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