Ti-Mo-TiC焼結合金におけるTiCの腐食挙動 Corrosion Behavior of TiC in Sintered Ti-Mo-TiC Alloy

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抄録

The corrosion behavior of TiCx (X=0.55, 0.75, 1.0) and TiC phase in Ti-20mass%Mo-33mass%TiC alloy (TM-2) prepared through P/M technology was studied by corrosion test and electrochemical measurements. The immersion tests in 35%HCl and 3%NaCl solutions showed that the TiC phase in TM-2 alloy and TiCx (X=0.55, 0.75, 1.0) had excellent corrosion resistance in these solutions. The corrosion rates of TM-2 alloy and TiCx (X=0.55, 0.75, 1.0) in 5%HNO<SUB>3</SUB> solution were over 10 times larger than that in 35%HCl solution because of dissolution of the TiC phase. From the potentiodynamic polarization curves, it was thought that the dissolution reaction of the TiC phase in TM-2 alloy and TiCx (X=0.55, 0.75, 1.0) in 5%HNO<SUB>3</SUB> solution was not only an electrochemical reaction, but also a chemical reaction without the electron transfer. The main corrosion of TM-2 alloy was due to the dissolution of a-Ti phase in 35%HCl and 3%NaCl solutions, and the dissolution of TiC phase in 5%HNO<SUB>3</SUB> solution, respectively.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 46(4), 409-416, 1999-04-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002262327
  • 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
    4701615
  • 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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