Determination of Thermal Diffusivity/conductivity of Oxide Scale Formed on Steel Plate by Laser Flash Method through Thermal Effusivity Measurement by Transient Hot-strip Method

被引：8

作者：

Endo, Rie ^{[1
]}

Hayashi, Hiroki ^{[2
]}

Li, Mu ^{[3
]}

Akoshima, Megumi ^{[3
]}

Okada, Hikaru ^{[4
]}

Tanei, Hiroshi ^{[5
]}

Hayashi, Miyuki ^{[1
]}

Susa, Masahiro ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Mat Sci & Engn, Meguro Ku, Tokyo 1528552, Japan

[2] Toyo Inst Technol, Dept Met & Ceram Sci, Tokyo 1528552, Japan

[3] Natl Inst Adv Ind Sci & Technol, Res Inst Mat & Chem Measurement, Tsukuba, Ibaraki 3058563, Japan

[4] Nippon Steel Technol Co Ltd, Environm & Energy Conservat Technol Div, 3 Hikari, Kashima, Ibaraki 3140014, Japan

[5] Nippon Steel Corp Ltd, Proc Res Labs, 20-1 Shintomi, Futtsu, Chiba 2938511, Japan

来源：

ISIJ INTERNATIONAL | 2020年 / 60卷 / 12期

关键词：

thermal diffusivity; thermal effusivity; thermal conductivity; oxide scale; Fe1-xO scale; HEAT-TRANSFER; DIFFUSIVITY MEASUREMENT; IRON-OXIDE; FEO SCALE; TEMPERATURE; CONDUCTIVITY; TRANSFORMATION; BEHAVIOR;

D O I：

10.2355/isijinternational.ISIJINT-2020-163

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Thermal diffusivity and conductivity were determined for oxide scale formed on steel plate by the laser flash method in combination with thermal effusivity measurement by the transient hot-strip method. The thermal effusivity measurement technique was confirmed by measurement of silica glass, and the value was determined to be 2.52 kJ m(-2) S-1/2 K-1 for the oxide scale formed on an ultra-low-carbon steel plate by oxidation in air at 900 degrees C for 3 600 s. Thermal diffusivity measurements were also conducted for 1 mm-thick steel plates oxidized in air at 900 degrees C for 770-3 600 s by the laser flash method. The apparent thermal diffusivity of samples provided the thermal diffusivity of the oxide scale based on three-layered analysis by inputting the measured value of the thermal effusivity. The measured values suggested that no significant boundary resistance exists between the oxide scale and the steel plate. The thermal conductivity and diffusivity of the oxide scale were calculated to be 1.6 W m(-1) K-1 and 4.0 x 10(-7) m(2) s(-1), respectively.

引用

页码：2773 / 2779

页数：7

共 28 条

[1] MEASUREMENT AND MODELING OF THERMAL-CONDUCTIVITY FOR DENSE IRON-OXIDE AND POROUS IRON-ORE AGGLOMERATES IN STEPWISE REDUCTION [J].