Effect of a Kind of Metal Cation on Corrosion Mechanism of A3003 Aluminum Alloy in Tap Water

• Otani Kyohei

  Graduate School of Engineering, Hokkaido University

• Sakairi Masatoshi

  Faculty of Engineering, Hokkaido University

• Kaneko Akira

  Nikkei Research & Development Center, Nippon Light Metal Co. Ltd.

抄録

Effect of a kind of metal cation on corrosion mechanism of A3003 aluminum alloy in tap water was investigated by electrochemical techniques and immersion corrosion tests. Corrosion rate of the aluminum alloy decreased with increase in a hardness of cation, except for Mg²⁺. XPS analyses showed metal cations, classified as a hard acid in tap water were incorporated in hydroxides on the aluminum alloy. The results suggest that the incorporated cations have corrosion inhibitory effect (e.g., Ca²⁺ and Zn²⁺) or corrosion promotive effect (e.g., Mg²⁺). These different effects can be explained by difference in molar volume between hard metal cation's hydroxide and aluminum hydroxide.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 57 (9), 1539-1546, 2016

  公益社団法人 日本金属学会

キーワード

• corrosion
• aluminum alloy
• oxide film
• metal cation
• tap water

詳細情報

• CRID: 1390001204254772096
• NII論文ID: 40020922529
• NII論文ID: 130005289925
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2016030
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 027571312
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027571312
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/57/9/57_M2016030/_pdf
• 本文言語コード: en
• 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