Published March 2014 | Version v1
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Development of specimen preparation techniques for pitting potential measurement of irradiated fuel cladding tubes

Creators

  • 1. Japan Atomic Energy Agency, Nuclear Science Research Inst., Tokai, Ibaraki (Japan)
  • 2. Japan Atomic Energy Agency, Fukushima Project Team, Tokai, Ibaraki (Japan)

Description

By the effect of the Great East Japan Earthquake, seawater was injected into spent fuel pools in unit 2, 3 and 4 at Fukushima Daiichi nuclear plant in order to cool spent fuels. It is known that chloride ion contained in seawater could cause pitting corrosion for metallic materials. It was concerned that radioactive products inside of fuel cladding tubes might be escaped through the pits. Therefore we have investigated the pit initiation condition of fuel cladding tubes by measuring pitting potential in order to evaluate stability of the enclosure function of fuel cladding tubes in spent fuel pools containing sea salt. In this report, we describe the development of specimen preparation techniques for pitting measurement of spent fuel cladding tubes having high radioactivity. By accomplishing of the development of the specimen preparation techniques, we could evaluate pit initiation condition of spent fuel cladding tubes in water containing sea salt. (author)

Availability note (English)

Available from JAEA; DOI: https://doi.org/10.11484/jaea-technology-2014-004

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Additional details

Identifiers

DOI
10.11484/jaea-technology-2014-004;

Publishing Information

Imprint Pagination
40 p.
Report number
JAEA-Technology--2014-004

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
48082308
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
CHLORIDES; COATINGS; CURRENT DENSITY; ELECTRIC POTENTIAL; FUEL CANS; FUEL STORAGE POOLS; FUKUSHIMA-2 REACTOR; FUKUSHIMA-3 REACTOR; FUKUSHIMA-4 REACTOR; MANIPULATORS; NUCLEAR POWER PLANTS; PITTING CORROSION; SEAWATER; SPENT FUELS; WELDING
Descriptors DEC
BWR TYPE REACTORS; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; CORROSION; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EQUIPMENT; FABRICATION; FUELS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; JOINING; LABORATORY EQUIPMENT; MATERIALS; MATERIALS HANDLING EQUIPMENT; NUCLEAR FACILITIES; NUCLEAR FUELS; OXYGEN COMPOUNDS; POWER PLANTS; POWER REACTORS; REACTOR MATERIALS; REACTORS; REMOTE HANDLING EQUIPMENT; THERMAL POWER PLANTS; THERMAL REACTORS; WATER; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
5 refs., 7 figs., 26 photos; This record replaces 46021541; This record replaces 48058374