PALS combined with Charpy-V tests at WWER reactor pressure vessel steels

This paper presents results from our long-term studies of irradiated, commercially used WWER reactor pressure vessel steels. Results from Charpy-V tests and positron annihilation spectroscopy techniques are compared and discussed in details, having in mind actual state of art and other microstructur...

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Bibliographic Details
Published in:Journal of physics. Conference series 2013-01, Vol.443 (1), p.12012-5
Main Authors: Slugeň, V, Kryukov, A, Petriska, M, Veterníková, J, Sojak, S, Sabelová, V, Hinca, R
Format: Article
Language:English
Subjects:
Annealing
Defect annealing
Impact tests
Irradiation
Microstructure
Optimization
Physics
Positron annihilation
Positron annihilation spectroscopy
Pressure vessels
Reactors
Stability
Steels
Structural steels
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Summary:This paper presents results from our long-term studies of irradiated, commercially used WWER reactor pressure vessel steels. Results from Charpy-V tests and positron annihilation spectroscopy techniques are compared and discussed in details, having in mind actual state of art and other microstructural studies in this area. The optimal region for annealing of irradiation induced defects was analyzed. It was shown that WWER steel with low impurity contents has good radiation stability and operation these reactor pressure vessels could be extended beyond a design lifetime.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/443/1/012012