Colloidal Compaction of Fine Metallic Powders under High-speed Centrifugal Force : Compaction and Sintering of High Speed Steel

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Fine (4μm) and coarse (30μm) water atomized high speed steel powders were prepared as slips and compacted by high-speed centrifugal compaction process (HCP).<BR>The HCP green compacts of the both fine and coarse powders can be sintered to almost full density at 1448K to 1498K without any pressure assistance during sintering. Their sintering behavior, however, were quite different. While the compact of coarse powder needed to form a liquid phase to densify and resulted in a coarse microstructure, that of fine powders densified in solid phase so that fine microstructures were obtained. A homogeneous packing of fine several micron powder by the HCP was essential to solid state sintering of high speed steel. The HCP compact of fine powders showed a comparable hardness and strength to wrought materials.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 50(11), 856-864, 2003-11-15

    Japan Society of Powder and Powder Metallurgy

参考文献:  17件中 1-17件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10012549326
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    6786942
  • 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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