純水中のアルミニウムの腐食に及ぼす溶存酸素の影響

• 石井 勝也

  株式会社デンソー技研センター技術部

• 尾崎 良太

  住友軽金属株式会社開発部

• 金子 賢治

  九州大学大学院超高圧電子顕微鏡室

• 増田 正孝

  九州大学大学院工学研究院材料工学部門

書誌事項

タイトル別名

• Effect of Oxygen on Aluminum Corrosion in Pure Water
• ジュンスイチュウ ノ アルミニウム ノ フショク ニ オヨボス ヨウゾン サンソ ノ エイキョウ

抄録

  When aluminum is immersed in pure water, hydrogen evolves at the cathode in pure water where there is no oxygen, although hydrogen dose not evolve in pure water with oxygen present. Based upon the fact, the effect of hydrogen evolved at the cathode on aluminum corrosion was investigated in relation to oxygen concentration in pure water in the present study. The length of incubation period, which is the time from the beginning of the corrosion test to a sharp increase in the corrosion amount, is almost constant regardless of the oxygen concentration. However, the corrosion period which begins right after the incubation period and continues until the saturation point is reached varies depending on the oxygen concentration. When the oxygen concentration is low, the amount of hydrogen at the cathode is large and small pits through the barrier layer spread rapidly over the entire surface, resulting in increase in the corrosion amount. From these results, it is thought that the hydrogen evolved by the cathode reaction greatly affects the deterioration of barrier layer and the aluminum corrosion.<br>

収録刊行物

• 日本金属学会誌

  日本金属学会誌 70 (10), 845-848, 2006

  公益社団法人 日本金属学会

キーワード

• corrosion rate
• barrier layer
• oxygen
• hydrogen
• pure aluminum
• pure water

詳細情報

• CRID: 1390282681457247360
• NII論文ID: 10018310796
• NII論文ID: 30018843343
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet.70.845
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 8550720
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8550720
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet/70/10/70_10_845/_pdf
• 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