Published July 2019 | Version v1
Journal article Metadata-only

Radiation Embrittlement Of Reactor Pressure Vessel Materials Of Rivne Npp Unit 1 Due To Re-Irradiation After Recovery Annealing

Creators

  • 1. Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv (Ukraine)
  • 2. SS "Scientific and Technical Center"of SE NNEGC "Energoatom", Kyiv (Ukraine)

Description

The results of surveillance-specimens testing of re-irradiated after recovery annealing reactor pressure vessel (RPV) metal of Rivne NPP unit 1 are presented. The radiation strengthening and shift of critical temperature of brittleness for RPV base metal and weld metal have been defined using tension and Charpy impact tests. The comparison of the experimental results and irradiation re-embrittlement models has been made. Based on summary analysis of three surveillance-specimens sets test results, it is shown that re-embrittlement degree after recovery annealing is not higher than that under primary irradiation. The paper also reveals the effect of phosphorus content in the RPV weld metal on Charpy upper shelf energy. (author)

Additional details

Additional titles

Original title (English)
Radyiatsyijne okrikhchuvannya materyialyiv korpusu reaktora energobloka № 1 Ryivnens'koyi AES unaslyidok povtornogo opromyinennya pyislya vyidpalu

Publishing Information

Journal Title
Yaderna Fyizika ta Energetika
Journal Volume
20
Journal Issue
no.3
Journal Page Range
p. 248-257
ISSN
1818-331X

INIS

Country of Publication
Ukraine
Country of Input or Organization
Ukraine
INIS RN
51012182
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
ANNEALING; EMBRITTLEMENT; MATERIALS RECOVERY; PHOSPHORUS; PHYSICAL RADIATION EFFECTS; PRESSURE VESSELS; RADIATION DOSES; ROVNO-1 REACTOR; TEMPERATURE DEPENDENCE; WWER TYPE REACTORS
Descriptors DEC
CONTAINERS; DOSES; ELEMENTS; ENRICHED URANIUM REACTORS; HEAT TREATMENTS; MANAGEMENT; NONMETALS; POWER REACTORS; PROCESSING; PWR TYPE REACTORS; RADIATION EFFECTS; REACTORS; THERMAL REACTORS; WASTE MANAGEMENT; WASTE PROCESSING; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS