Přístupnostní navigace
E-application
Search Search Close
Publication detail
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
Type
journal article - other
Language
English
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.
Keywords
Concasting, steel billet, chemical heterogeneity, temperature field, numerical model
Authors
KAVIČKA, F.; DOBROVSKÁ, J.; DOBROVSKÁ, V.; FRANCOVÁ, H.
RIV year
2011
Released
1. 9. 2011
Location
Shanghai
ISBN
1708-5284
Periodical
WORLD JOURNAL OF ENGINEERING
Year of study
8
Number
P 279
State
People's Republic of China
Pages from
1
Pages to
2
Pages count
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" }