Thermal diffusivity measurement of oxide scale formed on steel during hot-rolling process

Rie Endo; Takashi Yagi; Mitsutoshi Ueda; Masahiro Susa

doi:10.2355/isijinternational.54.2084

Thermal diffusivity measurement of oxide scale formed on steel during hot-rolling process

Rie Endo, Takashi Yagi, Mitsutoshi Ueda, Masahiro Susa

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Thermal diffusivity and conductivity of oxide scales formed on steel plates are essential to control the cooling rate of the steel in the hot-rolling process. A flash method was applied to measure the thermal diffusivity of oxide scales. Sample specimens were commercial hot-rolled plates on which about 25 μm-thick oxide scales were formed. The results of the flash measurement with the analysis for two-layered sample provided an average thermal diffusivity value of 7.3 x 10^-7m²s^-1for the oxide scale. This value produces a thermal conductivity value of 3.8 W m^-1K^-1. The future application of this measurement and analysis technique was also discussed to derive the thermal diffusivity and conductivity of oxide scales formed in actual hot-rolling processes.

Original language	English
Pages (from-to)	2084-2088
Number of pages	5
Journal	ISIJ International
Volume	54
Issue number	9
DOIs	https://doi.org/10.2355/isijinternational.54.2084
Publication status	Published - 2014
Externally published	Yes

Keywords

Flash method
Oxide scale
Thermal conductivity
Thermal diffusivity

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.2355/isijinternational.54.2084

Cite this

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abstract = "Thermal diffusivity and conductivity of oxide scales formed on steel plates are essential to control the cooling rate of the steel in the hot-rolling process. A flash method was applied to measure the thermal diffusivity of oxide scales. Sample specimens were commercial hot-rolled plates on which about 25 μm-thick oxide scales were formed. The results of the flash measurement with the analysis for two-layered sample provided an average thermal diffusivity value of 7.3 x 10-7m2s-1for the oxide scale. This value produces a thermal conductivity value of 3.8 W m-1K-1. The future application of this measurement and analysis technique was also discussed to derive the thermal diffusivity and conductivity of oxide scales formed in actual hot-rolling processes.",

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doi = "10.2355/isijinternational.54.2084",

language = "English",

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pages = "2084--2088",

journal = "Transactions of the Iron and Steel Institute of Japan",

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T1 - Thermal diffusivity measurement of oxide scale formed on steel during hot-rolling process

AU - Endo, Rie

AU - Yagi, Takashi

AU - Ueda, Mitsutoshi

AU - Susa, Masahiro

PY - 2014

Y1 - 2014

N2 - Thermal diffusivity and conductivity of oxide scales formed on steel plates are essential to control the cooling rate of the steel in the hot-rolling process. A flash method was applied to measure the thermal diffusivity of oxide scales. Sample specimens were commercial hot-rolled plates on which about 25 μm-thick oxide scales were formed. The results of the flash measurement with the analysis for two-layered sample provided an average thermal diffusivity value of 7.3 x 10-7m2s-1for the oxide scale. This value produces a thermal conductivity value of 3.8 W m-1K-1. The future application of this measurement and analysis technique was also discussed to derive the thermal diffusivity and conductivity of oxide scales formed in actual hot-rolling processes.

AB - Thermal diffusivity and conductivity of oxide scales formed on steel plates are essential to control the cooling rate of the steel in the hot-rolling process. A flash method was applied to measure the thermal diffusivity of oxide scales. Sample specimens were commercial hot-rolled plates on which about 25 μm-thick oxide scales were formed. The results of the flash measurement with the analysis for two-layered sample provided an average thermal diffusivity value of 7.3 x 10-7m2s-1for the oxide scale. This value produces a thermal conductivity value of 3.8 W m-1K-1. The future application of this measurement and analysis technique was also discussed to derive the thermal diffusivity and conductivity of oxide scales formed in actual hot-rolling processes.

KW - Flash method

KW - Oxide scale

KW - Thermal conductivity

KW - Thermal diffusivity

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Thermal diffusivity measurement of oxide scale formed on steel during hot-rolling process

Abstract

Keywords

ASJC Scopus subject areas

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