回転電極法を用いたNb_3Al基合金の作製と組織制御 Fabrication and Microstructure Controlling of Nb_3Al Based Alloy by Rotating Electrode Process

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In present work, we attempt to produce rapidly solidified powder of a Nb-Al alloy by the Rotating Electrode Process(REP), and successfully obtain good powder whose scatter of aluminun concentration is relatively small. The as-REP powder has a uniformly distributed dendritic structure of the bcc phase stable at high temperatures. The powder was sintered by Hot Pressing at 50MPa and 1873K. It was confirmed by X-ray analysis and electron probe micro analysis(EPMA) that the sintered material has a fine structure consisting of Nb<SUB>3</SUB>Al and Nb solid solution. After heat treated at 1773K for 24h, compression tests were performed in the temperature range from 1273K to 1873K at an initial strain rate of 1.6×10<SUP>-4</SUP>s<SUP>-1</SUP>. Temperature dependence of 0.2% proof stress is found to be similar to that of previous literatures. From the results obtained, we can conclude that this process is very useful to fabricate a Nb<SUB>3</SUB>Al and Nb solid solution in-situ composite with a near net shape.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 43(2), 256-261, 1996-02-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002011433
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    3926729
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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