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Masaaki MATSUSHIMA
Formerly, Graduate School, Kyushu University
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Shigeyuki YADOOMARU
Formerly, Graduate School, Kyushu University
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Katsumi MORI
Department of Iron and Steel Metallurgy, Faculty of Engineering, Kyushu University
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Yasuji KAWAI
Department of Iron and Steel Metallurgy, Faculty of Engineering, Kyushu University