Clarification of Cause of Defects in Rolled 42CrMo4 Steel Blooms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F10%3A86075663" target="_blank" >RIV/61989100:27360/10:86075663 - 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

Clarification of Cause of Defects in Rolled 42CrMo4 Steel Blooms

Popis výsledku v původním jazyce

In this paper we return to our previous research aimed at finding the cause of cracking in the core of rolled blooms of 36CrMo4 and 42CrMo4 steels. In those experiments, only the steel upon forming was available. This time we performed a laboratory wedgetest of formability of this steel in as-cast state and compared the regions where cracking occurred with results of FORGE 3D simulation. First cracks began to form when the Cockroft-Latham criterion value was as low as 30 MPa. These are the values whichcan be expected to be found at the tip of internal cracks under normal plant rolling conditions. Therefore, the laboratory simulation of rolling was performed with both original and modified roll pass designs. It was shown that during rolling in the blooming the tensile stress in the centre of the rolled product is not sufficient to cause crack formation.

Název v anglickém jazyce

Clarification of Cause of Defects in Rolled 42CrMo4 Steel Blooms

Popis výsledku anglicky

In this paper we return to our previous research aimed at finding the cause of cracking in the core of rolled blooms of 36CrMo4 and 42CrMo4 steels. In those experiments, only the steel upon forming was available. This time we performed a laboratory wedgetest of formability of this steel in as-cast state and compared the regions where cracking occurred with results of FORGE 3D simulation. First cracks began to form when the Cockroft-Latham criterion value was as low as 30 MPa. These are the values whichcan be expected to be found at the tip of internal cracks under normal plant rolling conditions. Therefore, the laboratory simulation of rolling was performed with both original and modified roll pass designs. It was shown that during rolling in the blooming the tensile stress in the centre of the rolled product is not sufficient to cause crack formation.

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

2010

Kód důvěrnosti údajů

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

Název periodika

Hutnické listy

ISSN

0018-8069

e-ISSN

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Svazek periodika

63

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

123-126

Kód UT WoS článku

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EID výsledku v databázi Scopus

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