Anodic oxidation of ZR–NI intermetallics in alkaline electrolytes after surface treatment with atomic hydrogen under cathodic polarization

The influence of surface treatment of high-capacity hydrogen sorbents (Zr–Ni intermetallics) with atomic hydrogen under cathodic polarization on their oxidation in a 30% KOH solution is studied. It is shown that no passivation film forms on ZrNi 5 near the stationary potential under cathodic polariz...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2013-09, Vol.52 (5-6), p.336-339
Main Authors: Shvets, V. A., Semenova, E. L., Lavrenko, V. A., Talash, V. N.
Format: Article
Language:English
Subjects:
Alloys
Building materials
Ceramics
Characterization and Evaluation of Materials
Chemical properties
Chemistry and Materials Science
Composites
Electrolytes
Glass
Hydrogen
Intermetallic compounds
Materials Science
Metallic Materials
Natural Materials
Oxidation-reduction reaction
Zirconium
Zirconium alloys
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Summary:The influence of surface treatment of high-capacity hydrogen sorbents (Zr–Ni intermetallics) with atomic hydrogen under cathodic polarization on their oxidation in a 30% KOH solution is studied. It is shown that no passivation film forms on ZrNi 5 near the stationary potential under cathodic polarization, which is not the case with Zr 2 Ni and ZrNi. It is established that surface treatment with atomic hydrogen under cathodic polarization increases the rate of anodic oxidation of Zr 2 Ni → ZrNi → ZrNi 5 .
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-013-9530-x