Study of cooling rate effect on back-diffusion during solidification of continuously cast steel billet

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU97180" target="_blank" >RIV/00216305:26210/11:PU97180 - 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 cooling rate effect on back-diffusion during solidification of continuously cast steel billet

Popis výsledku v původním jazyce

Chemical heterogeneity of elements is predominant cause of imperfections and defects of cast and formed steel products. During crystallization and solidification of metals and alloys chemical non-homogeneities occur, i.e. chemical heterogeneities of individual elements, since the elements, both constitutive and tramp elements and admixtures, segregate. Parameter of back diffusion (the mass Fourier number) occurs in majority of the used micro-segregation models. The presented paper calculates parametersof back diffusion of determined elements (C, Si, Mn, P and S) in selected areas of cross-section of continuously cast steel billet. Calculations were made with use of our own experimental data, tabulated data and also outputs from heat model simulating temperature field of billet at solidification and cooling. On the basis of these results it is possible to formulate a hypothesis about influence of cooling rate on back diffusion of investigated elements at solidification of steel billet.

Název v anglickém jazyce

Study of cooling rate effect on back-diffusion during solidification of continuously cast steel billet

Popis výsledku anglicky

Chemical heterogeneity of elements is predominant cause of imperfections and defects of cast and formed steel products. During crystallization and solidification of metals and alloys chemical non-homogeneities occur, i.e. chemical heterogeneities of individual elements, since the elements, both constitutive and tramp elements and admixtures, segregate. Parameter of back diffusion (the mass Fourier number) occurs in majority of the used micro-segregation models. The presented paper calculates parametersof back diffusion of determined elements (C, Si, Mn, P and S) in selected areas of cross-section of continuously cast steel billet. Calculations were made with use of our own experimental data, tabulated data and also outputs from heat model simulating temperature field of billet at solidification and cooling. On the basis of these results it is possible to formulate a hypothesis about influence of cooling rate on back diffusion of investigated elements at solidification of steel billet.

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

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

2011

Kód důvěrnosti údajů

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

Název periodika

WORLD JOURNAL OF ENGINEERING

ISSN

1708-5284

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

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Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

2

Strana od-do

1-2

Kód UT WoS článku

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EID výsledku v databázi Scopus

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