Structural and Electrochemical Properties of Al-Added Molybdate Conversion Coatings on Zinc

• Lee Dong-Jun

  School of Materials Science and Engineering, Seoul National University

• Kang Tak

  School of Materials Science and Engineering, Seoul National University

• Sohn Hun-Joon

  School of Materials Science and Engineering, Seoul National University

• Kim Hyung-Joon

  Coating Technology & Electrical Steel Research Steel Group, Pohang Iron & Steel Co., Ltd.

Abstract

Molybdate conversion coatings were deposited on zinc substrate in the presence of Al to improve the corrosion resistance and their structural and electrochemical properties were characterized with various analytical techniques. Infrared reflectance spectroscopy analysis indicated that Al existed as Al(OH)₃ in the molybdate conversion coatings. It was found that the addition of Al to molybdate conversion coatings hindered the oxygen reduction and hydrogen evolution reactions effectively compared with pure molybdate conversion coatings, resulting in the enhanced anticorrosive property.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 43 (1), 49-54, 2002

  The Japan Institute of Metals and Materials

Keywords

• aluminum addition
• molybdate conversion coatings
• anticorrosive property
• Raman spectroscopy
• infrared reflectance spectroscopy

Details

• CRID: 1390001204246081920
• NII Article ID: 130004451647
• NII Article ID: 10012320406
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.43.49
• COI: 1:CAS:528:DC%2BD38XitlSrtLc%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 6051293
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6051293
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/43/1/43_1_49/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed