Ultrafine structure formation in aluminium alloy processed by HPT and the mechanical properties response

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F11%3A%230000298" target="_blank" >RIV/26316919:_____/11:#0000298 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.667-669.903" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/MSF.667-669.903</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.667-669.903" target="_blank" >10.4028/www.scientific.net/MSF.667-669.903</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrafine structure formation in aluminium alloy processed by HPT and the mechanical properties response

Popis výsledku v původním jazyce

In this study ultrafine grain (ufg) structure evolution during high pressure torsion (HPT) of commercial aluminium alloy AA6082 at increased temperature is presented. The progress in structure refinement in dependence on the shear strain level strain wasinvestigated by TEM of thin foils. The impact of different amount of strain (?ef) introduced was analyzed with respect to the effect of increased temperature. The results of microstructure analyses showed that ultrafine grain structure was already formed in deformed disc upon the first turn, regardless the initial structure of alloy, resulting from prior thermal treatment. The heterogeneity in ufg structure formation across the deformed disc was observed, supporting microhardness scattering results. Byincreasing the strain level (number of turns N -2,4,6), more effectively homogenized ufg structure was observed across the deformed discs. The effect of increased deformation temperature became evident and dynamic recrystalization modifi

Název v anglickém jazyce

Ultrafine structure formation in aluminium alloy processed by HPT and the mechanical properties response

Popis výsledku anglicky

In this study ultrafine grain (ufg) structure evolution during high pressure torsion (HPT) of commercial aluminium alloy AA6082 at increased temperature is presented. The progress in structure refinement in dependence on the shear strain level strain wasinvestigated by TEM of thin foils. The impact of different amount of strain (?ef) introduced was analyzed with respect to the effect of increased temperature. The results of microstructure analyses showed that ultrafine grain structure was already formed in deformed disc upon the first turn, regardless the initial structure of alloy, resulting from prior thermal treatment. The heterogeneity in ufg structure formation across the deformed disc was observed, supporting microhardness scattering results. Byincreasing the strain level (number of turns N -2,4,6), more effectively homogenized ufg structure was observed across the deformed discs. The effect of increased deformation temperature became evident and dynamic recrystalization modifi

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

—

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 periodika

Materials Science Forum

ISSN

0255-5476

e-ISSN

—

Svazek periodika

667-669

Číslo periodika v rámci svazku

2011

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

903-908

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—