The analysis of the causes of cross cracking in concast slab via two numerical models

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F03%3A00008514" target="_blank" >RIV/61989100:27360/03:00008514 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/04:PU47894

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The analysis of the causes of cross cracking in concast slab via two numerical models

Popis výsledku v původním jazyce

This paper deals with the causes of a transversal crack in a steel slab with 145x1300 mm cross-section by means of two numerical models. The chemical microheterogeneity of the steel matrix and the surface of cracking have been estimated by means of X-raymicro-analyser JEOL JXA 8600/KEVEX. The analyses of Al, Si, P, Ti, Cr, Mn and Fe on the metallograpic samples of matrix of steel, of the neighbourhood of cracking and of the surface of cracking have been realized. There has been found out that the crosscracking is characterized of high macro-heterogeneity of manganese, carbon and sulphur. The causes of cross cracking have been explained by means of a thermokinetic calculation of a slab transient temperature field. There has been confirmed that two solidification cones are formed asymmetrically in the course of slab solidification and it is probable that the asymmetrically passing crack initiated on one of these two apexes.

Název v anglickém jazyce

The analysis of the causes of cross cracking in concast slab via two numerical models

Popis výsledku anglicky

This paper deals with the causes of a transversal crack in a steel slab with 145x1300 mm cross-section by means of two numerical models. The chemical microheterogeneity of the steel matrix and the surface of cracking have been estimated by means of X-raymicro-analyser JEOL JXA 8600/KEVEX. The analyses of Al, Si, P, Ti, Cr, Mn and Fe on the metallograpic samples of matrix of steel, of the neighbourhood of cracking and of the surface of cracking have been realized. There has been found out that the crosscracking is characterized of high macro-heterogeneity of manganese, carbon and sulphur. The causes of cross cracking have been explained by means of a thermokinetic calculation of a slab transient temperature field. There has been confirmed that two solidification cones are formed asymmetrically in the course of slab solidification and it is probable that the asymmetrically passing crack initiated on one of these two apexes.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název statě ve sborníku

XIII. International Scientific Conference "Iron and Steelmaking"

ISBN

83-89776-00-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

215-218

Název nakladatele

Politechnika Ślaşka

Místo vydání

Katowice

Místo konání akce

Szczyrk, Polsko

Datum konání akce

9. 10. 2003

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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