..., surveillance, embrittlement, neutron, ux reduction, vessel Introduction Pressurized Thermal Shock A pressurized thermal shock (PTS) event is an event or transient in pressurized water reactors (PWRs) causing severe overcooling (thermal shock) concurrent with or followed by signi cant pressure in the reactor...

...S. Jayalakshmi; E. Fleury In hydrogen-related energy technologies, the selection of materials is critical since hydrogen can modify the initial microstructure and induce damage that could result in the reduction of mechanical properties and embrittlement. In this context, metallic amorphous alloys...

...Yutaka Nishiyama; Masatake Yamaguchi; Kunio Onizawa; Akihiko Iwase; Hiroshi Matsuzawa A study on grain-boundary segregation and embrittlement in terms of the Charpy ductile-to-brittle transition temperature (DBTT) has been performed for the neutron-irradiated A533B steels with typical contents...

... material for RBMK and CANDU pressure tubes), and of irradiation conditions (temperature, applied stress) on irradiation hardening and embrittlement. The reactor damage of Zr-2.5%Nb alloy was modeled with a method of high-energy 225 MeV (e,γ)-beam irradiation, which allows samples to be irradiated under...

...-Hydride Embrittlement of High-Burnup Zircaloy-4 Fuel Cladding ,” J. Nucl. Sci. Technol.   0022-3131   https://doi.org/10.3327/jnst.43.1054 , Vol. 43 , No. 9 , 2006 , pp. 1054 – 1067 . Nagase , F. , and Fuketa , T. , “ Influence of Hydride Re-Orientation on BWR Cladding Rupture Under...

...Yutaka Nishiyama; Kunio Onizawa; Masahide Suzuki A study on phosphorus (P) segregation at grain boundaries and intergranular embrittlement of reactor pressure vessel steels due to thermal aging and neutron irradiation has been performed for A533B steel plates and weld metals doped with different...

... described here. 20 06 2005 19 04 2006 05 2006 neutron irradiation embrittlement TORT dosimetry 2005-05-08 - 2005-05-13 Reactor Dosimetry, 12th International Symposium References Heatherly , D. W. , Thoms , K. R. , Hurst , M. T. , and Giles , G. E...

... was performed in a VVER-type power reactor to three different dose levels, maximally 0.14 dpa, at an irradiation temperature of 255°C. The volume content of the micostructural features measured is correlated with the irradiation hardening and embrittlement. In every case clear radiation-related hardening...

... and the consequences of hydride embrittlement can be derived from the PROMETRA program. 15 03 2004 06 12 2004 01 06 2005 CABRI REP-Na PROMETRA RIA Zircaloy-4 irradiated high-burnup mechanical properties hydride embrittlement 2004-06-13 - 2004-06-15 Zirconium in the Nuclear...

.... KEYWORDS: irradiation hardening, ductility, embrittlement, type 316 stainless steels, tensile properties, low-strain-rate, lower dose rate irradiation, EBR-II reflector duct, fast reactor core materials Introduction Structural components in nuclear reactor cores are subjected to varying degrees...

...-quench mechanical behavior at 1000, 1100, and 1200°C for representative times of LOCA transient (1800 s). (3) Oxygen has the most important effect in embrittlement of as-received Zr alloys at 1100 and 1200°C. (4) Hydriding has no effect on the oxidation kinetics at 1200°C, but after quenching...

.... In addition, the stress relief time has an effect on yield stress. The stress relief time may have an effect on the irradiation embrittlement of the welds, but the trend is not conclusive. Since there is an effect of stress relief time on the initial transition temperature, it is felt that it is important...

... 2002 17 11 2003 03 05 2004 embrittlement embrittlement correlation integrity assessment References ASME Boiler and Pressure Vessel Code Case N-629 , Use of Fracture Toughness Test Data to Establish Reference Temperature for Pressure Retaining Materials , Section XI...

...RE Stoller The effect of neutron flux level is a longstanding concern for determining the applicability of test reactor data or high lead-factor surveillance data to the prediction of embrittlement in commercial reactor pressure vessels (RPV). However, as operating reactors reach higher fluences...