Evaluation of Nuclear Reactor Decontaoninants
Journal Article
·
· Corrosion (Houston)
Test facilities and evaluation procedures used in designating optimum conditions and method for deccntamination are described. Decontaminants based on sulfamic acid, dibasic ammonium citrate, and sodium bisulfate were tested in several tests of the procedure. All appear to be satisfactory for decontaminating carbon steel systems but present corrosion problems. If the reactor piping is at least partly of stainless steel, the reagents are not effective unless a preliminary conditioning step is used. The most effective conditioning step was treatment at 105 deg C with alkaline permanganate solution. Two major problems observed during testing of various decontaminants are: galvanic corrosion at the junction of carbon steel-stainless steel welded specimens, which is promoted by the presence of oxygen; and dendritic attack by alkaline permanganate solution on certain alloys used for valve facing.
- Research Organization:
- General Electric Co., Richland, Wash.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-020984
- OSTI ID:
- 4816156
- Report Number(s):
- HW-SA-2218
- Journal Information:
- Corrosion (Houston), Journal Name: Corrosion (Houston) Journal Issue: 6 Vol. 18; ISSN 0010-9312
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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