Study of Technological Formability of Low-alloyed Steel 25CrMo4

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F09%3A00022049" target="_blank" >RIV/61989100:27360/09:00022049 - 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

Study of Technological Formability of Low-alloyed Steel 25CrMo4

Popis výsledku v původním jazyce

In the case of the rolled Cr-Mo based low-alloyed steel rolled products, the internal cracks occur after hot rolling, and show during the ultrasound inspection. A set of the hot wedge-shaped tests was carried out for the given type of the 25CrMo4 continuously cast steel so that the formability of this type of steel could be judged. The investigated steel has a good formability within the temperature range from 1100 to -1300°C, but only when the blooms and billets are rolled from the continuously cast semi-finished products (thereinafter referred to as the "conti cast blanks") of the diameter 410 mm. The occurrence, as the case may be, of internal cracks in blooms and billets rolled from the cast blanks of the diameter 550 mm is caused by the negative interaction of several factors, namely the low casting speed, the high overheating temperature in a tundish, the short heating time, and the relatively low rolling temperatures.

Název v anglickém jazyce

Study of Technological Formability of Low-alloyed Steel 25CrMo4

Popis výsledku anglicky

In the case of the rolled Cr-Mo based low-alloyed steel rolled products, the internal cracks occur after hot rolling, and show during the ultrasound inspection. A set of the hot wedge-shaped tests was carried out for the given type of the 25CrMo4 continuously cast steel so that the formability of this type of steel could be judged. The investigated steel has a good formability within the temperature range from 1100 to -1300°C, but only when the blooms and billets are rolled from the continuously cast semi-finished products (thereinafter referred to as the "conti cast blanks") of the diameter 410 mm. The occurrence, as the case may be, of internal cracks in blooms and billets rolled from the cast blanks of the diameter 550 mm is caused by the negative interaction of several factors, namely the low casting speed, the high overheating temperature in a tundish, the short heating time, and the relatively low rolling temperatures.

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

2009

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

62

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

3

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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