高清浄環境下における超急冷粉末冶金連続プロセスとそれを用いた新材料の開発 Development of the Closed P/M Processing System

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The closed powder metallurgy processing system for the production and consolidation of rapidly soldified powders has been developed in Institute for Materials Research, Tohoku University. The sequent steps can be carried out in a vacuum or argon gas atmosphere containing oxygen and moisture of 0.5 ppm without exposing the powder to air, The superiorities of the closed process were: 1) improvement of the strength and ductility of compacts, 2) reduction of the working degree of consolidation and enlargement of the dimensions of compacts, 3) abbreviation of the degassing process or lowering of the degassing temperature, 4) reduction of the thermal history, 5) widening of the consolidation conditions, 6) safety production and consolidation of reactive powders. The synthesize of nanocrystalline aluminum alloys by crystallization of amorphous phase was exemplified as developments of advanced materials using the closed P/M processing system. The nanocrystalline Al-Ni-Ln-(Co, Ti, Zr) (Ln: lantanide metal) alloys had high strength at room and elevated temperatures, high Young's modulus, high wear resistance, low thermal expansion etc.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(10), 921-929, 1997-10-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002261504
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    05328799
  • NDL 記事登録ID
    4324256
  • 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  CJP引用  NDL  J-STAGE 
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