Effect of Electromagnetic Stirring on Weld Solidification Structure of Austenitic Stainless Steels(Materials, Metallurgy & Weldability)
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概要
- 論文の詳細を見る
Effect of electromagnetic stirring on refining of weld solidification structure was investigated for austenitic stainless steels of SUS 304, 316, 321 and 310S, 2 and 8mm in thickness, with GTA bead-on-plate welding. The experimental scope in this investigation was less than 15Hz in stirring frequency, less than 700G on weld surface in magnetic field, and welding conditions of GTAW were 200A-150mm/min for 2mm thick sheet and 200 to 300A-150 to 300mm/min for 8mm thick plate. As a result, there was an optimum in stirring frequency in 5 to 10Hz and was better with increasing in magnetic force, in order to make fine grain in austenitic stainless steel. The mechanism of refining is also estimated to be the same as that of aluminum alloys, that is, dendrite fragmentation by fluid flow with stirring action.
- 大阪大学の論文
著者
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MATSUDA Fukuhisa
Osaka University
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Nakata Kazuhiro
Osaka Univ. Ibaraki
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Sano Naoto
Osaka University:(present Office)toshiba Corp.
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Matsuda Fukuhisa
Osaka Univ.
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