Effect of isothermal annealing on the corrosion resistance of an amorphous alloy

Sang Soo Shin, Chang Myeon Lee, Jae Woong Yang, Jae Chul Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study examined the role of excess free volume on the corrosion resistance of an amorphous alloy. Corrosion behaviors were monitored on the amorphous alloys, of which amount of free volume was controlled via the isothermal annealing below the glass transition temperature, using immersion tests and potentiodynamic polarization tests in HCl aqueous solutions. It was found that the corrosion resistance of the amorphous alloy is improved by reducing the amount of excess free volume. The possible reason explaining the experimental result was discussed from the viewpoint of the internal energy associated with the annihilation of excess free volume.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalJournal of Korean Institute of Metals and Materials
Volume46
Issue number2
Publication statusPublished - 2008

Keywords

  • Amorphous alloys
  • Corrosion resistance
  • Free volume
  • Structural relaxation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Modelling and Simulation
  • Surfaces, Coatings and Films
  • Metals and Alloys

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