射出成形法によるTi焼結体の強度特性 Tensile Properties of Sintered Ti Compacts by Metal Injection Molding Process

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Tensile properties of sintered Ti compacts prepared by metal injection molding process were investigated. Powder materials used for this study were pure Ti powders, whose average particle sizes were 13μm and 23μm. After debinding, the green compacts were sintered at various temperatures for 7.2ks in vacuum (10<SUP>-3</SUP>Pa order). Then the green compacts were placed in a case with Al<SUB>2</SUB>O<SUB>3</SUB> powders or BN powders to compare the oxygen contents in the sintered Ti.<BR>13μm powders enabled to sinter at lower temperature than 23μm powders, so the Ti compact sintered at 1298K had 0.2% offset yield stress of 485 MPa, modulus of elasticity of 101 GPa and tensile elongation of 18%. The tensile elongation was influenced by the oxygen content in sintered Ti. The oxygen content increased with sintering temperature when the green compacts were sintered in a case with Al<SUB>2</SUB>O<SUB>3</SUB> powders. But, when BN powders were used instead of the Al<SUB>2</SUB>O<SUB>3</SUB> powders, the oxygen content changed hardly by sintering temperature. Consequently the tensile elongation was improved drastically.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(5), 448-452, 1997-05-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013820
  • 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
    4205765
  • 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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