Publication detail

Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel

KAVIČKA, F. DOBROVSKÁ, J. STRÁNSKÝ, K. SEKANINA, B. ŠTĚTINA, J. MAUDER, T. MASARIK, M.

English title

Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel

Type

Peer-reviewed article not indexed in WoS or Scopus

Language

en

Original abstract

The so called secondary cooling zone is an important part of the continuous casting machine. In this zone a breakout may occur due to an increase of the local and temperature heterogeneity of steel, resulting from an increase of the stress caused by bending of the slab and by high local concentration of non-metallic slag inclusions. Changes of the chemical composition of steel during continuous casting are particularly dangerous. In the event that two melts are cast one right after another, i.e. if the melt of steel with chemical composition A ends and it is immediately followed by the steel B, it may automatically stop the CCM and an atypical breakout may take place. It happened during continuous casting of the slab. 250x1530 mm in the area of straightening, 20 minutes after flying change of tundish. In the present paper, by employing the dimensional analysis, eight dimensionless numbers are derived. If the values of this dimensionless numbers for two immediately followed steels significant differs, the atypical breakout may take place.

Keywords in English

Steel slab, Continuous casting; Chemical and temperature heterogeneity; Breakout; Dimensionless number.

Released

2013-07-10

Publisher

Wiley Pub.

ISSN

8756-758X

Journal

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES

Volume

2013

Number

2

Pages from–to

1–10

Pages count

10

BIBTEX


@article{BUT101060,
  author="František {Kavička} and Jana {Dobrovská} and Karel {Stránský} and Bohumil {Sekanina} and Josef {Štětina} and Tomáš {Mauder} and Miloš {Masarik}",
  title="Breakout of a Slab as the Result of Changes in the Thermo-physical Properties of Continuously Cast Steel",
  journal="FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES",
  year="2013",
  volume="2013",
  number="2",
  pages="1--10",
  doi="10.1111/ffe.12075",
  issn="8756-758X"
}