Effect of initial structure and ECAP condition on microstructure and mechanical properties development of medium carbon steel

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 initial structure and ECAP condition on microstructure and mechanical properties development of medium carbon steel

Popis výsledku v původním jazyce

The article focuses on the results from recent experimental of severe plastic deformation of low and medium carbon steel performed at increased temperature. The grain refinement of ferrite-pearlite is described using ECAP severe deformation. The high straining in low carbon steel resulted in extensively elongated ferrite grains with dense dislocation network, randomly recovered and polygonized structure was observed. The tensile strength was increase more then twice, however the ductility reduced distinctively. On the other side, the warm ECAP deformation of medium carbon steel resulted in more progressive recovery but not sufficient grain refinement. As straining increased the dynamic polygonization and recrystallization process became active to formmixture of polygonized subgrains and submicrocrystalline grains having high angle boundaries. The tensile behaviour of the both steels was characterized by strength increase, however the absence of strain hardening period was found do be

Název v anglickém jazyce

Effect of initial structure and ECAP condition on microstructure and mechanical properties development of medium carbon steel

Popis výsledku anglicky

The article focuses on the results from recent experimental of severe plastic deformation of low and medium carbon steel performed at increased temperature. The grain refinement of ferrite-pearlite is described using ECAP severe deformation. The high straining in low carbon steel resulted in extensively elongated ferrite grains with dense dislocation network, randomly recovered and polygonized structure was observed. The tensile strength was increase more then twice, however the ductility reduced distinctively. On the other side, the warm ECAP deformation of medium carbon steel resulted in more progressive recovery but not sufficient grain refinement. As straining increased the dynamic polygonization and recrystallization process became active to formmixture of polygonized subgrains and submicrocrystalline grains having high angle boundaries. The tensile behaviour of the both steels was characterized by strength increase, however the absence of strain hardening period was found do be

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

XXVIII. Verformungskundliches Kolloquium

ISBN

978-3-902078-12-4

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Montanuuniversitat Leoben

Místo vydání

Leoben, Austria

Místo konání akce

Planneralm, Steiermark

Datum konání akce

1. 1. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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