射出成形Fe-Ni合金の衝撃, 疲労破壊特性 Impact and Fatigue Properties of Injection Molded Fe-Ni Alloys

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It is well known that many high performance sintered alloys have been produced by Metal Injection Molding (MIM) process so far. A Fe-Ni system is one of the objected alloys, and they are used for machine structural parts. Although assessment of the dynamic fracture properties such as fatigue strength is important to design a reliable sintered structual parts, there are few reports for the dynamic properties of MIM alloys even at the present time.<BR>In this study, the behaviore of dynamic properties (impact and fatigue strength) for Fe-Ni (Fe-2, 4 and 7mass%Ni) alloys produced by MIM process has been investigated. Approximately 96% of theoretical density was obtained in all Fe-Ni alloys. Impact strength of MIM alloys was superior to that of the conventional P/M alloys, because the pore structure of the former was fine and spheroidized as compared to that of the latter. Fatigue strength was increased with increasing Ni content because of the solution strengthening and grain refining effects. Endurance ratio of MIM alloys was similar to that of the wrought alloys.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(11), 999-1003, 1997-11-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002261656
  • 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
    4344268
  • 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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