Corrosion Behaviour of [(Fe_<0.6>Co_<0.4>)_<0.75>B_<0.2>Si_<0.05>]_<96>Nb_4 Bulk Glassy Alloy in Sulphuric Acid Solutions

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The influence of structural changes such as structural relaxation and crystallization on the corrosion behavior of the [(Fe<SUB>0.6</SUB>Co<SUB>0.4</SUB>)<SUB>0.75</SUB>B<SUB>0.2</SUB>Si<SUB>0.05</SUB>]<SUB>96</SUB>Nb<SUB>4</SUB> bulk glassy alloy has been investigated in aerated 0.1 and 0.5 kmol/m<SUP>3</SUP> sulphuric acid solutions. All tests were carried out with the same materials in different states: as-cast and relaxed glassy and crystalline states. It was found that the multicomponent [(Fe<SUB>0.6</SUB>Co<SUB>0.4</SUB>)<SUB>0.75</SUB>B<SUB>0.2</SUB>Si<SUB>0.05</SUB>]<SUB>96</SUB>Nb<SUB>4</SUB> glassy alloy had an ability to passivation in aerated sulphuric acid solutions irrespective of microstructure. The subsequent complete crystallization of the bulk glassy alloy leads to a significant decrease in corrosion resistance, while appropriate structural relaxation results in an increase in corrosion resistance. The corrosion results were discussed and correlated with the evolution of crystallization processes by means of XRD and DSC. The effect of temperature of the corrosive medium on the corrosion behavior of the as-cast [(Fe<SUB>0.6</SUB>Co<SUB>0.4</SUB>)<SUB>0.75</SUB>B<SUB>0.2</SUB>Si<SUB>0.05</SUB>]<SUB>96</SUB>Nb<SUB>4</SUB> glassy alloy has also been analyzed.

収録刊行物

  • Materials transactions  

    Materials transactions 47(10), 2566-2570, 2006-10-20 

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10018310428
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    8092276
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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