Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English, Russian   Periodicity: 4 times per year   Open access peer reviewed journal

Full text (ua)

L. I. Chyrko^*, V. M. Revka, Yu. V. Chaikovskyi, M. G. Goliak, O. V. Trygubenko, O. V. Shkapyak

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

^*Corresponding author. E-mail address: chyrko@kinr.kiev.ua

Abstract: The paper presents the statistical analysis of experimental results of radiation-induced critical brittle temperature ΔT_F shifts and reference temperatures ΔT₀ obtained respectively from the impact bend and fracture toughness tests of the reactor vessel metal surveillance specimens to define the possibility of their mutual application for the irradiation embrittlement coefficient to be determined more accurately. The correlation between these parameters is shown to remain up to the accumulation of over-design fast neutron fluence.

Keywords: critical brittle temperature shifts, reference temperature, irradiation embrittlement coefficient, Chow test.

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