Grain refinement in aluminium alloy AlMgSi1 during ECAP at room 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

Grain refinement in aluminium alloy AlMgSi1 during ECAP at room temperature.

Popis výsledku v původním jazyce

The severe plastic deformation (SPD) was demonstrated as an effective approach to produce ultrafine grained materials. ECAP has emerged as effective deformation method to refine grain size in bulk metallic materials. Aluminium alloys AlMgSi1 was processed by SPD at room temperature to the effective strain ?ef = 4. Development of deformation substructure and grain refinement after different effective true strain by TEM of thin foils. Deformed substructure analysis showed progressive effect of different processing condition on deformation structure development. The microstructural changes are mainly characterized by evolution of high density dislocation substructure (subgrains) with relative low misorientations at strain below ?ef = 2. The higher fraction of high angle boundaries were observed at strain ?ef = 4. A new grains with random crystal orientation are them more frequently developed. Hardness measurement was used to evaluate the mechanical properties of deformed materials.

Název v anglickém jazyce

Grain refinement in aluminium alloy AlMgSi1 during ECAP at room temperature.

Popis výsledku anglicky

The severe plastic deformation (SPD) was demonstrated as an effective approach to produce ultrafine grained materials. ECAP has emerged as effective deformation method to refine grain size in bulk metallic materials. Aluminium alloys AlMgSi1 was processed by SPD at room temperature to the effective strain ?ef = 4. Development of deformation substructure and grain refinement after different effective true strain by TEM of thin foils. Deformed substructure analysis showed progressive effect of different processing condition on deformation structure development. The microstructural changes are mainly characterized by evolution of high density dislocation substructure (subgrains) with relative low misorientations at strain below ?ef = 2. The higher fraction of high angle boundaries were observed at strain ?ef = 4. A new grains with random crystal orientation are them more frequently developed. Hardness measurement was used to evaluate the mechanical properties of deformed materials.

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

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

18th International Metallurgical and Materials Conference METAL 2009

ISBN

978-80-87294-04-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

TANGER, spol s.r.o.

Místo vydání

Ostrava, ČR

Místo konání akce

Hradec nad Moravicí, ČR

Datum konání akce

1. 1. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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