Effect of Strain Level on Recrystallisation Response of AA8006 and AA8011 Thin Strips

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

Effect of Strain Level on Recrystallisation Response of AA8006 and AA8011 Thin Strips

Popis výsledku v původním jazyce

Aluminium sheets manufactured from twin-roll continuous cast AA 8006 and AA 8011 alloys are used in heat exchangers as fins of complex configuration. The strips are delivered in the quarter-hard H22 and soft O conditions obtained by annealing after coldrolling to the final thickness. Finstock materials must exhibit high formability combined with good strength and detailed understanding of the structure evolution during thermo-mechanical processing is therefore necessary in order to obtain optimum sheetproperties. Previous investigation results indicated that the increase of rolling reduction applied prior to the final annealing results in an increase of the yield strength Rp0,2 of annealed sheets. The paper presents the results of a research aimed atunderstanding the physical-metallurgical causes of this effect. The influence of further factors affecting deformation restoration during annealing such as composition, second phase dispersion and heating rate are discussed too.

Název v anglickém jazyce

Effect of Strain Level on Recrystallisation Response of AA8006 and AA8011 Thin Strips

Popis výsledku anglicky

Aluminium sheets manufactured from twin-roll continuous cast AA 8006 and AA 8011 alloys are used in heat exchangers as fins of complex configuration. The strips are delivered in the quarter-hard H22 and soft O conditions obtained by annealing after coldrolling to the final thickness. Finstock materials must exhibit high formability combined with good strength and detailed understanding of the structure evolution during thermo-mechanical processing is therefore necessary in order to obtain optimum sheetproperties. Previous investigation results indicated that the increase of rolling reduction applied prior to the final annealing results in an increase of the yield strength Rp0,2 of annealed sheets. The paper presents the results of a research aimed atunderstanding the physical-metallurgical causes of this effect. The influence of further factors affecting deformation restoration during annealing such as composition, second phase dispersion and heating rate are discussed too.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

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Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název statě ve sborníku

Metal 2001, 10. mezinárodní konference metalurgie a materiálů

ISBN

80-85988-56-9

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

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Název nakladatele

Tanger, s.r.o.

Místo vydání

Ostrava

Místo konání akce

Ostrava

Datum konání akce

15. 5. 2001

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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