Super-plasticity of Mg alloys after rolling and ECAP

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F08%3A00019584" target="_blank" >RIV/61989100:27360/08:00019584 - 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

Super-plasticity of Mg alloys after rolling and ECAP

Popis výsledku v původním jazyce

The paper is focused on investigation of structure and properties of Mg alloys with fine-grained nanostructure. Forming of magnesium alloys with usual grain size 250 to 500 mm is difficult as they are characterised by low plastic properties. Applicationof SPD processes (Severe Plastic Deformation) enables us to achieve in these alloys as well an ultra-fine grains ? nano-grains ? and thus also high mechanical properties. Influence of the accumulation of deformation by the ECAP process on grain size andmechanical properties of the alloys AZ61 and AZ91 was determined experimentally. Application of the ECAP technology generated nano-structure with an average grains size around approx. d ~ 0.7 mkm. After the ECAP deformation eef > 6 these alloys gained super-plastic behaviour. Ductility of the alloy AZ91 was around 420 %. Experiment proved influence of extreme plastic deformations on grain refinement and on final values of mechanical properties.

Název v anglickém jazyce

Super-plasticity of Mg alloys after rolling and ECAP

Popis výsledku anglicky

The paper is focused on investigation of structure and properties of Mg alloys with fine-grained nanostructure. Forming of magnesium alloys with usual grain size 250 to 500 mm is difficult as they are characterised by low plastic properties. Applicationof SPD processes (Severe Plastic Deformation) enables us to achieve in these alloys as well an ultra-fine grains ? nano-grains ? and thus also high mechanical properties. Influence of the accumulation of deformation by the ECAP process on grain size andmechanical properties of the alloys AZ61 and AZ91 was determined experimentally. Application of the ECAP technology generated nano-structure with an average grains size around approx. d ~ 0.7 mkm. After the ECAP deformation eef > 6 these alloys gained super-plastic behaviour. Ductility of the alloy AZ91 was around 420 %. Experiment proved influence of extreme plastic deformations on grain refinement and on final values of mechanical properties.

Druh

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

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

2008

Kód důvěrnosti údajů

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

Název periodika

Perspektivnye materialy

ISSN

1028-978X

e-ISSN

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Svazek periodika

6

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

4

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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