Ultrafine grain structure evolution in AA6085 aluminium alloy processed by HPT at increased temperature

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

Ultrafine grain structure evolution in AA6085 aluminium alloy processed by HPT at increased temperature

Popis výsledku v původním jazyce

In this study ultrafine grain structure formation in condition of high pressure torsion (HPT) of commercial aluminium alloy at increased temperature is presented. Three different initial structural states of the alloy were prepared by mechanical and thermal treatment. The impact of different amount of strain (?ef) introduced was analyzed with respect to the effect of increased temperature and ultrafine grain structure formation. The microhardness records across the deformed discs pointed out that some data scattering was found. The results of microstructure analyses showed that ultrafine grain (ufg) structure was already formed in deformed disc upon the first turn, regardless the initial structure of alloy, resulting from prior thermal treatment. The observed heterogeneity in ufg structure formation across the deformed disc was evident performing the first turn. However hardness results received across the deformed disc supported formation of structure heterogenity. By increasing the s

Název v anglickém jazyce

Ultrafine grain structure evolution in AA6085 aluminium alloy processed by HPT at increased temperature

Popis výsledku anglicky

In this study ultrafine grain structure formation in condition of high pressure torsion (HPT) of commercial aluminium alloy at increased temperature is presented. Three different initial structural states of the alloy were prepared by mechanical and thermal treatment. The impact of different amount of strain (?ef) introduced was analyzed with respect to the effect of increased temperature and ultrafine grain structure formation. The microhardness records across the deformed discs pointed out that some data scattering was found. The results of microstructure analyses showed that ultrafine grain (ufg) structure was already formed in deformed disc upon the first turn, regardless the initial structure of alloy, resulting from prior thermal treatment. The observed heterogeneity in ufg structure formation across the deformed disc was evident performing the first turn. However hardness results received across the deformed disc supported formation of structure heterogenity. By increasing the s

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

THERMEC 2011 ? International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS

ISBN

978-3-03795-129-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1864-1869

Název nakladatele

Trans Tech Publications Ltd

Místo vydání

Durntern-Zurich, Swittzerland

Místo konání akce

Quebec, Canada

Datum konání akce

1. 8. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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