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 language | English |
|---|---|
| Pages (from-to) | 53-57 |
| Number of pages | 5 |
| Journal | Journal of Korean Institute of Metals and Materials |
| Volume | 46 |
| Issue number | 2 |
| Publication status | Published - 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