アルミニウムの孔食成長過程の電気化学的検討

• 当摩 建

  三菱アルミニウム(株)技術研究所

書誌事項

タイトル別名

• An electrochemical investigation on pitting growth process of aluminum.
• アルミニウム ノ コウショク セイチョウ カテイ ノ デンキ カガクテキ ケン

抄録

Electrochemecal mesurements in NaCl solutions were carried out to understand the electrochemical informations during pitting growth process such as irreversibility of anodic polarization curves and variation of electrode potential with time in immersion corrosion test. In galvanostatic anodic dissolution, electrode potential rises to pitting potential immediately after current application and lower after a while. The time required for the beginning of the potential fall prolongs with increase of applied current. While the internal surface of the pits consists of a large number of crystallographic tunnels in the earlier stage of dissolution, they transform to dimples after sufficient potential fall. PH rapidly decreases and Cl^- concentration increases with applied current in anodic area of electrolysis cell simulating localized corrosion. All the electrochemical informations for pitting growth are well understood in terms of the effect of anodic area increase as well as pH decrease and salt condensation within pits.

収録刊行物

• 軽金属

  軽金属 36 (2), 89-98, 1986

  一般社団法人 軽金属学会

キーワード

• aluminum
• electrochemical mesurement
• pitting corrosion
• NaCl solution

詳細情報

• CRID: 1390282681316180352
• NII論文ID: 130004075708
• NII論文ID: 10003793479
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.36.89
• COI: 1:CAS:528:DyaL2sXhtVGisA%3D%3D
• ISSN: 18808018
• ISSN: 04515994
• ISSN: http://id.crossref.org/issn/04515994
• NDL書誌ID: 3070581
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3070581
• 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