Respond of structural changes on deformation behaviour of ECAP processed aluminium alloy AA7075

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F11%3A%230000301" target="_blank" >RIV/26316919:_____/11:#0000301 - 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

Respond of structural changes on deformation behaviour of ECAP processed aluminium alloy AA7075

Popis výsledku v původním jazyce

In order to improve the deformation behaviour of SPD prepared aluminium alloy AA7075 microstructure modification by ageing due to various holds at precipitation temperature prior to ECAP processing and post-deformation treatment were carried out. Over-aging process carried out prior severe deformation modified the characteristics of precipitates (intermetallic phases) present in alloy. The microstructure refined by intensive deformation was then altered by various annealing procedures. Ageing prior to ECAP contributed to a small increase in strength, as hardness results, as shown by results of hardness measurement and observation of microstructure. On the other hand, post-deformation annealing of the ECAP-ed samples at various temperatures markedly modified the deformation response of the alloy as regards ductility. Evaluating the mechanical properties a small increase in strength was achieved at lower temperature of at lower temperatures of annealing (250°C, 300°C), whereas the highes

Název v anglickém jazyce

Respond of structural changes on deformation behaviour of ECAP processed aluminium alloy AA7075

Popis výsledku anglicky

In order to improve the deformation behaviour of SPD prepared aluminium alloy AA7075 microstructure modification by ageing due to various holds at precipitation temperature prior to ECAP processing and post-deformation treatment were carried out. Over-aging process carried out prior severe deformation modified the characteristics of precipitates (intermetallic phases) present in alloy. The microstructure refined by intensive deformation was then altered by various annealing procedures. Ageing prior to ECAP contributed to a small increase in strength, as hardness results, as shown by results of hardness measurement and observation of microstructure. On the other hand, post-deformation annealing of the ECAP-ed samples at various temperatures markedly modified the deformation response of the alloy as regards ductility. Evaluating the mechanical properties a small increase in strength was achieved at lower temperature of at lower temperatures of annealing (250°C, 300°C), whereas the highes

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

BULK NANOSTRUCTRUCED MATERIALS: from fundamentals to innovations BNM 2011, International Scientific Issue

ISBN

978-5-4221-0195-5

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

53-54

Název nakladatele

USATU Editorial Publishing Office, Russia

Místo vydání

Ufa State Aviation Technical University, Russia

Místo konání akce

Ufa, Russia

Datum konání akce

23. 8. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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