Results 11 to 20 of about 308 (200)
Simulation of Cu precipitation in Fe-Cu dilute alloys with cluster mobility
Materials & Design, 2020 Cu-rich precipitates formation is associated with the precipitation hardening of Fe-Cu based steels and the embrittlement of reactor pressure vessel steels under neutron irradiation.
Senlin Cui +2 more
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Metals, 2022 Understanding the mechanical behaviour of reactor pressure vessel (RPV) steels at high fluences has become an important topic in regard to Long-Term Operations (LTO) of existing nuclear power plants (NPP).
Mathilde Laot +5 more
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Nuclear Materials and Energy, 2023 Neutron embrittlement of reactor pressure vessel (RPV) steels potentially limits the safe operational time of nuclear reactors. In tested RPV steel samples microcracks are known to originate from cleaved precipitates, inclusions or grain boundaries ...
Paul Chekhonin +3 more
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Machine learning predictions of irradiation embrittlement in reactor pressure vessel steels
npj Computational Materials, 2022 Irradiation increases the yield stress and embrittles light water reactor (LWR) pressure vessel steels. In this study, we demonstrate some of the potential benefits and risks of using machine learning models to predict irradiation hardening extrapolated ...
Yu-chen Liu +20 more
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Brittle fracture resistance of reactor pressure vessel steels in the initial state [PDF]
Nuclear Energy and Technology, 2018 The authors investigate the influence of chemical and structural inhomogeneity on the brittle fracture resistance (BFR) of VVER vessel materials in the initial state (without irradiation).
Nikolay P. Anosov +5 more
doaj +3 more sources
Applied Sciences, 2020 The influence of surface roughness on magnetic measurements of Reactor Pressure Vessel Steels was investigated by applying two types of magnetic, non-destructive measurement on nuclear reactor pressure vessel steel samples: magnetic adaptive testing (MAT)
Gábor Vértesy +5 more
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COMPARISON OF TWO TECHNIQUES FOR EVALUATING SPHERICAL INDENTATION DATA
Acta Polytechnica CTU Proceedings, 2020 Flow curves of 15Kh2MFA, Sv 08Kh19N10G2B and 08Kh18N10T steels used for fabrication of WWER-440 nuclear reactor pressure vessel and core internals were obtained using the automated ball indentation (ABI) test technique and compared with flow curves ...
Aleš Materna +2 more
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The characterization of a nanoscale MnNi cluster in thermally aged reactor pressure vessel steels
Materials Research Express, 2022 The MnNi-rich clusters or precipitates (MNPs) are one of the most important nanofeatures resulting in irradiation-induced embrittlement of reactor pressure vessel (RPV) steels.
Hailong Liu, Qiulin Li
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Metals, 2022 The existing knowledge about the effect of neutron irradiation on the mechanical properties of reactor pressure vessel steels under reactor service conditions relies to a large extent on accelerated irradiations realized by exposing steel samples to a ...
Andreas Ulbricht +8 more
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Metals, 2023 In this paper the phase formation and mechanical properties of VVER-type reactor pressure vessel (RPV) steels with various Ni (1.57–5.95 wt.%) and Mn (0.03–0.76 wt.%) content after neutron irradiation up to fluences in the range of (53–120) × 1022 n/m2 ...
Evgenia Kuleshova +5 more
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