Detail publikačního výsledku

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

KAVIČKA, F.; DOBROVSKÁ, J.; DOBROVSKÁ, V.; FRANCOVÁ, H.

Originální název

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

Anglický název

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

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

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 parameters of 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.

Anglický abstrakt

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 parameters of 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.

Klíčová slova

Concasting, steel billet, chemical heterogeneity, temperature field, numerical model

Klíčová slova v angličtině

Concasting, steel billet, chemical heterogeneity, temperature field, numerical model

Autoři

KAVIČKA, F.; DOBROVSKÁ, J.; DOBROVSKÁ, V.; FRANCOVÁ, H.

Rok RIV

2012

Vydáno

01.09.2011

Místo

Shanghai

ISSN

1708-5284

Periodikum

World Journal of Engineering

Svazek

8

Číslo

P 279

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

2

Strany počet

2

BibTex

@article{BUT89872,
  author="František {Kavička} and Jana {Dobrovská} and Věra {Dobrovská} and Hana {Francová}",
  title="Study of cooling rate effect on back-diffusion during solidification of continuously cast steel billet",
  journal="World Journal of Engineering",
  year="2011",
  volume="8",
  number="P 279",
  pages="1--2",
  issn="1708-5284"
}