Influence of anodic oxidation at low potential on the Corrosion resistance of hafnided zirconium in concentrated sulphuric media
✍ Scribed by G. Chatainier; Prof. J. A. Petit; Prof. F. Dabosi
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- German
- Weight
- 528 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0947-5117
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
In the context of increasing applications of zirconium in the chemical processing industry the influence of anodic oxidation at low potentials on the corrosion resistance of zirconium has been studied. Experiments were performed in concentrated sulphuric acid media, using electrochemical methods. A transition range of potentials between −65 and −50 mV/SCE has been observed. On each side of this transition range hafnided zirconium covered with passive film exhibits different corrosion resistance. Alteration of the passive film, which can be assumed from nuclear microanalysis experiments, has been hypothesized to take account for the modification of the electrochemical behaviour.