Strain-Rate Sensitivity in Hot Forming of Steels - Influence of Microstructure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F03%3A00009153" target="_blank" >RIV/61989100:27360/03:00009153 - 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

Strain-Rate Sensitivity in Hot Forming of Steels - Influence of Microstructure

Popis výsledku v původním jazyce

The methodology of determination of strain-rate sensitivity index was developed, based on rolling of a set of samples with the same draught but different speed at defined temperatures. It was shown that initial grain size has nearly negligible influenceon the investigated variable, in contrast to phase composition whose influence is very considerable. Combined influence of strain rate and temperature on deformation resistance of various types of steel was studied. For a selected group of steels a universal equation was set up, which described with a good accuracy impact of reciprocal temperature and chemical composition (expressed simply by nickel equivalent) on strain-rate sensitivity in hot state.

Název v anglickém jazyce

Strain-Rate Sensitivity in Hot Forming of Steels - Influence of Microstructure

Popis výsledku anglicky

The methodology of determination of strain-rate sensitivity index was developed, based on rolling of a set of samples with the same draught but different speed at defined temperatures. It was shown that initial grain size has nearly negligible influenceon the investigated variable, in contrast to phase composition whose influence is very considerable. Combined influence of strain rate and temperature on deformation resistance of various types of steel was studied. For a selected group of steels a universal equation was set up, which described with a good accuracy impact of reciprocal temperature and chemical composition (expressed simply by nickel equivalent) on strain-rate sensitivity in hot state.

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

2003

Kód důvěrnosti údajů

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

Název periodika

Steel research international

ISSN

0177-4832

e-ISSN

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Svazek periodika

74

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

617-623

Kód UT WoS článku

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EID výsledku v databázi Scopus

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