Computer simulation of the effect of irradiation temperatures on the damage accumulation in Fe
- 1. Central Research Inst. of Electric Power Industry, Komae, Tokyo (Japan). Komae Research Lab.
- 2. Science Univ. of Tokyo, Noda, Chiba (Japan). Faculty of Science and Technology
Description
Neutron irradiation embrittlement of reactor pressure vessel steels needs to be predicted with high accuracy for long-term operation of light water reactors. Since there is a slight difference in the irradiation temperature of boiling water reactors and pressurized water reactors, it is important to understand the effect of irradiation temperature on embrittlement. We present in this study kinetic Monte Carlo computer simulation results of damage accumulation in Fe at different temperatures. The results are analyzed using the idea of temperature effect models developed by NRC/ASTM and Jones et al. We found that the simulation results are well described by the Jones model that determines the effect of irradiation temperature as a linear function of the temperature. (author)
Additional details
Publishing Information
- Journal Title
- Denryoku Chuo Kenkyusho Hokoku
- Journal Issue
- no.T03076
- Journal Page Range
- p. 1-4, 1-12
- ISSN
- 1340-4652
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 36031499
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- BWR TYPE REACTORS; COMPUTERIZED SIMULATION; DISLOCATIONS; EMBRITTLEMENT; INTERSTITIALS; IRON; MATRIX MATERIALS; MONTE CARLO METHOD; PHYSICAL RADIATION EFFECTS; PRESSURE VESSELS; PWR TYPE REACTORS; TEMPERATURE DEPENDENCE; VACANCIES
- Descriptors DEC
- CALCULATION METHODS; CONTAINERS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTS; ENRICHED URANIUM REACTORS; LINE DEFECTS; MATERIALS; METALS; POINT DEFECTS; POWER REACTORS; RADIATION EFFECTS; REACTORS; SIMULATION; THERMAL REACTORS; TRANSITION ELEMENTS; WATER COOLED REACTORS; WATER MODERATED REACTORS