Stress Relaxation Behavior of Molten Slags

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著者

    • MATSUSHITA Taishi
    • Department of Materials Science and Engineering, Royal Institute of Technology
    • SASAKI Yasushi
    • Division of Materials Science and Engineering, Hokkaido University
    • GORNERUP Marten
    • Department of Materials Science and Engineering, Royal Institute of Technology

抄録

In the present work, a method to measure stress relaxation of molten slags, developed earlier by one of the authors, was applied to mould flux slags as well as synthetic slags. The molten slag was sandwiched by two Pt plates and was compressed. And stress relaxation tests (the structural relaxation of molten slags) have been conducted by compressing the molten slags as well as mould flux slags at strain rates of 10 mm/min. The results of stress relaxation tests were discussed from the viewpoint of relaxation time and structure of slags with the aid of Raman spectroscopy. The stress relaxation behavior is found to be linked to the structure of slags. The residual stress after a compression was increased with increasing of Al<sub>2</sub>O<sub>3</sub> content and with decreasing of CaF<sub>2</sub> content. The relaxation behavior was changed drastically with increasing of temperature for some molten slags.

収録刊行物

  • ISIJ international  

    ISIJ international 46(8), 1258-1263, 2006-08-15 

    The Iron and Steel Institute of Japan

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