Electrochemical methods of determining the susceptibility to localized corrosion in hardfacing materials exposed to decontaminating solutions for a liquid metal fast breeder reactor
✍ Scribed by Dr. B. Eremiaš; Dr. R. Stefec
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- German
- Weight
- 477 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0947-5117
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✦ Synopsis
Abstract
Agents commonly used as decontaminating solutions for liquid metal cooled fast breeder reactors include nitric acid and potassium permanganate (solution No 1) in combinatino with oxalic acid (solution No 2). Overlayed or sprayed hardfacing alloys used for the valves and accessoires of fast breeder reactors are less resistant to localized corrosino in these solutions and are generally inferior to AISI 316L stainless steel which is the substrate for the hardfacing. The corrosion mechanism acting on these alloys when exposed to the No 1 and No 2 decontaiminating solutions makes it possible to apply electrochemical techniques to ascertain the susceptibility to localized attack and to rapidly screen the degree of resistance in these environments.