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Abstracts
This paper presents a comparison of commercially used German and Russian reactor pressure vessel steels from the positron annihilation spectroscopy point of view, having in mind knowledge obtained also from other techniques from the last decades. The second generation of Russian reactor pressure vessel steels seems to be fully comparable with German steels and their quality allows prolongation of NPP operating lifetime over projected 40 years. The embrittlement of CrMoV steels is very low due to the dynamic recovery of radiation-induced defects at reactor operating temperatures. Positron annihilation spectroscopy techniques can be effectively applied for evaluation of microstructural changes caused by extreme external loads by proton implantation, with aim to simulate irradiation and for the evaluation of the effectiveness of post-irradiation thermal treatments. We used our actual and previous results, collected during last 20 years from measurements of different reactor pressure vessel steels in "as received", irradiated and post-irradiation annealed state and compare them with the aim to contribute to general knowledge based on experimental positron annihilation spectroscopy data.
Discipline
- 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)
- 61.72.-y: Defects and impurities in crystals; microstructure(for radiation induced defects, see 61.80.-x; for defects in surfaces, interfaces, and thin films, see 68.35.Dv and 68.55.Ln; see also 85.40.Ry Impurity doping, diffusion, and ion implantation technology; for effects of crystal defects and doping on superconducting transition temperature, see 74.62.Dh)
- 28.41.Qb: Structural and shielding materials
Journal
Year
Volume
Issue
Pages
726-728
Physical description
Dates
published
2014-03
Contributors
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- AREVA NP GmbH, Paul Gossen Str. 100, 91 001 Erlangen, Germany
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Slovak University of Technology Ilkovičova 3, 81219 Bratislava, Slovakia
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n312kz