Open AccessABNORMAL TEMPERATURE FLUCTUATION OF STAINLESS STEEL IRRADIATED BY CW CO2 LASER
Author(s) -
Wei Xue-Qin,
Zheng Qi-Guang,
GU Jianhui,
Zaiguang Li
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.2246
Subject(s) - materials science , thermal diffusivity , irradiation , thermal conductivity , laser , aluminium , amplitude , thermal , infrared , composite material , carbon steel , thermodynamics , optics , physics , nuclear physics , corrosion
The temperature fluctuation of the stainless steel irradiated by a CW CO2 laser is studied. In the experiment, the temperature fluctuation and the temperature rise is measured by the infrared thermal imagers. It is found that the maximum amplitude of the temperature fluctuation is kept constant with the increase of the laser heating time; this is different from aluminum, low carbon steel, epoxylite and polymethylmethacrylate. This characteristic of the stainless steel is determined by the variance of thermal conductivity and thermal diffusivity with the increase of temperature. A thorough study of the effects of the material thermal properties on the temperature fluctuation is needed.