Publication result detail

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

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

Original Title

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

English Title

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

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

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.

English abstract

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.

Keywords

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

Key words in English

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

Authors

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

RIV year

2012

Released

01.09.2011

Location

Shanghai

ISBN

1708-5284

Periodical

World Journal of Engineering

Volume

8

Number

P 279

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

2

Pages count

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"
}