Corrosion characteristics of surface-modified DET magnesium powders

W. S. Chung, Wooyoung Yoon, K. J. Kim

Research output: Contribution to journalArticle

Abstract

Magnesium powders having inactive surface layer have been processed easily and intentionally by DET under fluoride, chromate, and bromide salt. The modified surfaces play an important role in preventing contact with active environments to improve corrosion resistance of Magnesium powders; the image of the surface modified powders was observed using SEM. The composition distribution and characteristics was determined and analyzed by using XRD, XPS, and EIS. Compared with bare Magnesium, the Magnesium having chromate modified surface layer showed a more passive behavior such as smaller current density and nobler potential in 4wt% NaCl solution.

Original languageEnglish
Pages (from-to)369-372
Number of pages4
JournalMaterials Science Forum
Volume449-452
Issue numberI
Publication statusPublished - 2004 Jul 27

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Keywords

  • Droplet emulsion technique (DET)
  • Electrochemical corrosion
  • Electrochemical impedance spectroscopy (EIS)
  • Potentiodynamic polarization curve
  • Surface modified magnesium

ASJC Scopus subject areas

  • Materials Science(all)

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