Corrosion of type 304L stainless steel in boiling dilute neptunium nitrate solution
Creators
- 1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Description
Corrosion of type 304L stainless steel in nitric acid solution containing neptunium was studied under immersion and heat-transfer condition. Corrosion rates of stainless steel were obtained by the weight loss measurement and the quantitative analysis of metallic ions dissolved in solution. The surface morphology was observed by scanning electron microscopy. The corrosion acceleration mechanism was investigated by polarization measurement and spectrophotometry. The corrosion rate in boiling 9M nitric acid was accelerated by addition of neptunium. The corrosion of stainless steel was promoted under heat-transfer condition compared to immersion condition. In polarization measurements, the cathodic current was increased by addition of neptunium. Spectrophotometric measurements showed the oxidization of neptunium in boiling nitric acid. It was suggested that the accelerated corrosion in nitric acid solution containing neptunium was caused by re-oxidation of neptunium. (author)
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36116056.pdf
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Additional details
Publishing Information
- Imprint Title
- Proceedings of the 3rd international symposium on material chemistry in nuclear environment (MATERIAL CHEMISTRY '02)
- Imprint Pagination
- 468 p.
- Journal Page Range
- p. 439-444
- Report number
- JAERI-Conf--2003-001
Conference
- Title
- 3. international symposium on material chemistry in nuclear environment
- Acronym
- MC'02
- Dates
- 13-15 Mar 2002
- Place
- Tsukuba, Ibaraki (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 36116056
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; BOILING; CORROSION; HEAT TRANSFER; NEPTUNIUM NITRATES; NITRIC ACID; POLARIZATION; REDOX POTENTIAL; SCANNING ELECTRON MICROSCOPY; STAINLESS STEEL-304L
- Descriptors DEC
- ACTINIDE COMPOUNDS; ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; ELECTRON MICROSCOPY; ENERGY TRANSFER; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; LOW CARBON-HIGH ALLOY STEELS; MATERIALS; MICROSCOPY; NEPTUNIUM COMPOUNDS; NICKEL ALLOYS; NITRATES; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SPECTROSCOPY; STAINLESS STEELS; STEEL-CR19NI10-L; STEELS; TRANSITION ELEMENT ALLOYS; TRANSURANIUM COMPOUNDS
Optional Information
- Notes
- 5 refs., 5 figs., 1 tab.; This record replaces 35018021