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Resilience of the reactor pressure Vessel steel at fast neutron i | 61277
Journal of Physical Chemistry & Biophysics

Journal of Physical Chemistry & Biophysics
Open Access

ISSN: 2161-0398

+44 1478 350008

Resilience of the reactor pressure Vessel steel at fast neutron intensity decreasing


5th International Congress on Physics

August 10, 2022 | Webinar

Evgenii krasikov

Kurchatov Institute, Russia

Scientific Tracks Abstracts: J Phys Chem Biophys

Abstract :

Statement of the Problem: Influence of neutron irradiation on Reactor Pressure Vessel (RPV) steel degradation are examined with reference to the possible reasons of the substantial experimental data scatter and furthermore – nonstandard (non-monotonous) and oscillatory embrittlement behavior. In our glance this phenomenon may be explained by presence of the wavelike component in the embrittlement kinetics. We suppose that the main factor affecting steel anomalous embrittlement is fast neutron intensity (dose rate or flux), flux effect manifestation depends on state-of-the-art fluence level. At low fluencies radiation degradation has to exceed normative value, then approaches to normative meaning and finally became sub normative. Data on radiation damage change including through the ex-service RPVs taking into account chemical factor, fast neutron fluence and neutron flux were obtained and analyzed.

Biography :

Education: Moscow Power Engineering Institute: September 1964 - February 1970. Degree or Diploma obtained: Master’s Degree in Material Science – 1970, Ph.D. – 1974, D.Sc. -2005. Membership of professional bodies: member of Scientific Council of RAS on Radiation Damage Physics of Solids. Years within the firm: since 1974. Key qualification: responsible executor in Radiation Damage Physics of Solids. Professional experience record: since 1974 till now. Moscow, National Research Centre "Kurchatov Institute”, Department: Reactor Materials and Technologies Institute.

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