Ｔｉ‐Ｍｏ系焼結合金の腐食挙動について

• 中原 賢治

  日本タングステン(株)

• 徳本 啓

  日本タングステン(株)

• 坂口 茂也

  日本タングステン(株)

• 林 安徳

  九州大学工学部材料工学科

書誌事項

タイトル別名

• Corrosion Behavior of Ti-Mo Sintered Alloy.
• Ti Moケイ ショウケツ ゴウキン ノ フショク キョドウ ニ ツイテ

抄録

The corrosion behavior of Ti-(0-40)mass%Mo alloys prepared through P/M technology was studied by corrosion test and electrochemical measurements. The corrosion rate of sintered Ti-Mo alloys in 35% HCl solution decreased remarkably with increasing molybdenum content. The corrosion rate of Ti-40mass%Mo alloy, for example, exhibited 5*10^-3 [mm/year], which was 10⁴ times lower than that of pure titanium. On the other hand, the corrosion rate in 3%NaCl solution wasn't affected by molybdenum content in alloys and was less than 10^-3 [mm/Year].<BR>Potentiodynamic polarization curves in 35%HCl solution showed that increasing molybdenum content caused the open circuit potential (corrosion potential) to be noble and the anodic current density to be low. It was thought that the presence of spontaneously passivated film in which molybdenum was enriched by preferential dissolution of titanium suppressed the anodic reaction and improved their corrosion resistance. On the other hand, potentiodynamic polarization curves in 3%NaCl solution revealed that increasing molybdenum content caused the open circuit potential to be base and the anodic current density to be high because molybdenum dissolved actively.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 44 (3), 241-246, 1997

  一般社団法人 粉体粉末冶金協会

キーワード

• sintered Ti-Mo alloy
• corrosion resistance
• polarization curve
• HC ??
• NaC ??

詳細情報

• CRID: 1390001206309472384
• NII論文ID: 10002013628
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.44.241
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4172707
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4172707
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可