Publication detail

IMPACT OF OXIDE SCALE ON HEAT TREATMENT OF STEELS

RAUDENSKÝ, M. CHABIČOVSKÝ, M. HRABOVSKÝ, J.

Original Title

IMPACT OF OXIDE SCALE ON HEAT TREATMENT OF STEELS

English Title

IMPACT OF OXIDE SCALE ON HEAT TREATMENT OF STEELS

Type

conference paper

Language

en

Original Abstract

Oxidation is an inherent aspect of steel production and heat treatment. Oxide scale layers commonly impact surface quality and material loss during steel processing. This paper is focused on the study of the influence of the oxide layer on cooling intensity. Spray cooling of a hot steel surface is considered. Typical examples are secondary cooling in continuous casting, interstand and run-out table cooling at hot rolling, and heat treatment and other metallurgical processes where controlled temperature regimes are required. Cooling intensity is primarily affected by spray parameters such as pressure and coolant impingement density. Though not frequently reported, even thin layers of oxides can significantly modify cooling intensity. This effect is prevalent when cooling steel surfaces at high surface temperatures. The influence of oxide scale layers on cooling intensity was studied using experimental measurements and numerical analysis. Experimental measurements compare the cooling of scale-free surfaces and oxidized surfaces. Experimental investigations show a difference in the cooling intensity. Numerical analyses were prepared to simulate sample cooling with different oxide scale layers and thermal conductivity. Even a scale layer of several microns can significantly modify the cooling intensity.

English abstract

Oxidation is an inherent aspect of steel production and heat treatment. Oxide scale layers commonly impact surface quality and material loss during steel processing. This paper is focused on the study of the influence of the oxide layer on cooling intensity. Spray cooling of a hot steel surface is considered. Typical examples are secondary cooling in continuous casting, interstand and run-out table cooling at hot rolling, and heat treatment and other metallurgical processes where controlled temperature regimes are required. Cooling intensity is primarily affected by spray parameters such as pressure and coolant impingement density. Though not frequently reported, even thin layers of oxides can significantly modify cooling intensity. This effect is prevalent when cooling steel surfaces at high surface temperatures. The influence of oxide scale layers on cooling intensity was studied using experimental measurements and numerical analysis. Experimental measurements compare the cooling of scale-free surfaces and oxidized surfaces. Experimental investigations show a difference in the cooling intensity. Numerical analyses were prepared to simulate sample cooling with different oxide scale layers and thermal conductivity. Even a scale layer of several microns can significantly modify the cooling intensity.

Keywords

scale, oxide, Leidenfrost temperature, spray cooling, cooling intensity

RIV year

2014

Released

21.05.2014

Publisher

Tanger Ltd.

Location

Ostrava

ISBN

978-80-87294-54-3

Book

METAL 2014, 23rd International Conference on Metallurgy and Materials, Conference Proceedings

Pages from

553

Pages to

558

Pages count

6

BibTex


@inproceedings{BUT107767,
  author="Miroslav {Raudenský} and Martin {Chabičovský} and Jozef {Hrabovský}",
  title="IMPACT OF OXIDE SCALE ON HEAT TREATMENT OF STEELS",
  annote="Oxidation is an inherent aspect of steel production and heat treatment. Oxide scale layers commonly impact surface quality and material loss during steel processing. This paper is focused on the study of the influence of the oxide layer on cooling intensity. Spray cooling of a hot steel surface is considered. Typical examples are secondary cooling in continuous casting, interstand and run-out table cooling at hot rolling, and heat treatment and other metallurgical processes where controlled temperature regimes are required.
Cooling intensity is primarily affected by spray parameters such as pressure and coolant impingement density. Though not frequently reported, even thin layers of oxides can significantly modify cooling intensity. This effect is prevalent when cooling steel surfaces at high surface temperatures. The influence of oxide scale layers on cooling intensity was studied using experimental measurements and numerical analysis. Experimental measurements compare the cooling of scale-free surfaces and oxidized surfaces. Experimental investigations show a difference in the cooling intensity. Numerical analyses were prepared to simulate sample cooling with different oxide scale layers and thermal conductivity. Even a scale layer of several microns can significantly modify the cooling intensity.",
  address="Tanger Ltd.",
  booktitle="METAL 2014, 23rd International Conference on Metallurgy and Materials, Conference Proceedings",
  chapter="107767",
  howpublished="electronic, physical medium",
  institution="Tanger Ltd.",
  year="2014",
  month="may",
  pages="553--558",
  publisher="Tanger Ltd.",
  type="conference paper"
}