電子ビーム溶解したモリブデン鋳塊の靭性について

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書誌事項

タイトル別名
  • On the Ductility of Electron-Beam Melted Molybdenum Ingots
  • 電子ビーム溶解したモリブデン鋳塊の靱性について
  • デンシ ビーム ヨウカイ シタ モリブデンチュウカイ ノ ジンセイ ニ ツイテ

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抄録

The present study was undertaken to improve the cold ductility of molybdenum ingots by electron-beam melting. The effects of deoxidation on the ductility were evaluated by means of bend tests and fractography, which yielded the following results: (1) In the preliminary tests, it was suggested that addition of carbon was more effective in deoxidation than that of titanium and zirconium. (2) On the basis of the preliminary investigation, further experiments were performed to determine the optimum amount of carbon addition. It was found that addition of 0.04 to 0.08 pct of carbon gave a good ductility at room temperature. (3) Moreover, carbon deoxidation improved the low temperature ductility, too. At −70°C, bend angles of 70° and 30° degrees were obtained for carbon deoxidized molybdenum ingots, as contrasted with commercial recrystallized molybdenum with out any ductirity.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (7), 467-471, 1961

    公益社団法人 日本金属学会

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