Mo添加によるMIM Ti-6Al-4V合金の組織制御に関する検討 Microstructural Modification for Injection Molded Ti-6Al-4V Alloys by Addition of Mo Powder

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The metal injection molding process was applied to produce the microstructual modified Ti-6Al-4V alloy compacts using Ti, 60Al-40V alloy and fine Mo powders. To improve the tensile properties of the compacts with modification of microstructure, the effect of Mo content and sintering conditions on the microstructures and mechanical properties of the sintered compacts were investigated, and the characteristic X-ray images were also measured by means of electron probe micro analyzer to estimate the distribution of added Mo.<BR>The microstructures of sintered compacts were consisted of acicular α and intergranular β phases and the acicular α phase became fine with increasing Mo contents. The tensile strength of sintered compacts increased with increasing Mo contents. Although the elongation of sintered compacts slightly reduced with increasing Mo contents, these sintered compacts showed excellent ductility above 10% of elongation up to 4mass% of Mo contents. Eventually, the mechanical properties of the sintered compacts added 4mass% of Mo were improved to be 970MPa with 13.8% of elongation due to the fine microstructure.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 53(9), 750-754, 2006-09-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10018247072
  • 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
    8519048
  • 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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