Published April 17, 1998 | Version v1
Journal article Metadata-only

Small angle neutron scattering investigations of the microstructure of VVER-440-type reactor pressure vessel steel after irradiation at 60 C

Creators

  • 1. Forschungszentrum Rossendorf e.V. (FZR), Dresden (Germany)
  • 2. Hahn-Meitner-Institut Berlin, Glienicker Str. 100, D-14109 Berlin (Germany)

Description

The formation of point defects and precipitates after neutron irradiation of VVER-440-type reactor pressure vessel steel was investigated by small angle neutron scattering experiments. Irradiation at 60 C increased the number of point defects, decreased the precipitates, which already exist in the unirradiated state, and formed a new type of fine-scaled precipitates. Post-irradiation annealing near the operational temperature of the nuclear power plants (270 C) provoked a slight decrease of the content of point defects and of the irradiation-induced precipitates. The content of these precipitates which are also present in the unirradiated state did not change by annealing. (orig.)

Additional details

Publishing Information

Journal Title
Journal of Nuclear Materials
Journal Volume
254
Journal Issue
2-3
Journal Page Range
p. 143-150
ISSN
0022-3115
CODEN
JNUMAM

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
29052106
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
Descriptors DEI
ANNEALING; FAST NEUTRONS; FERRITIC STEELS; MICROSTRUCTURE; NEUTRON DIFFRACTION; NEUTRON FLUENCE; POINT DEFECTS; PRECIPITATION; PRESSURE VESSELS; RADIATION EFFECTS; REACTOR VESSELS; SMALL ANGLE SCATTERING; TEMPERATURE RANGE 0273-0400 K; WWER TYPE REACTORS
Descriptors DEC
ALLOYS; BARYONS; CARBON ADDITIONS; COHERENT SCATTERING; CONTAINERS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIFFRACTION; ELEMENTARY PARTICLES; ENRICHED URANIUM REACTORS; FERMIONS; HADRONS; HEAT TREATMENTS; IRON ALLOYS; IRON BASE ALLOYS; NEUTRONS; NUCLEONS; POWER REACTORS; PWR TYPE REACTORS; REACTORS; SCATTERING; SEPARATION PROCESSES; STEELS; TEMPERATURE RANGE; THERMAL REACTORS; TRANSITION ELEMENT ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
8 refs.