... cores. This study aimed to evaluate the fracture toughness and its associated statistical characteristics of nuclear graphite NBG-18, for which there had been very little data. The effect of specimen size on its fracture toughness was also studied. Materials and methods : Three-point-bending tests...

... Graphite is a brittle, polygranular material, which brings difficulties to the research of its fracture toughness. In the present paper, an experimental work on measuring the fracture toughness of graphite IG-11 is described. Three-point bending tests were employed. The effects of graphite...

... differences between two codes; ASME code focuses on fracture toughness requirements for pressure-retaining ferrite materials and RCC-M code focuses on Susceptibility to intergranular corrosion for austenitic and austenitic-ferrite stainless steel. ASME RCC-M materials fracture toughness...

... surveillance reconstitution fracture toughness The Japan Power Engineering and Inspection Corporation (JAPEIC) has been carrying out the project titled “Nuclear Power Plant Integrated Management Technology (PLIM)” consigned by Japanese Ministry of Economy, Trade and Industry (METI) since...

... 25 11 2008 Neutron bombardment of reactor pressure vessel (RPV) steels causes reductions in fracture toughness in these steels, termed neutron irradiation embrittlement. Currently there are no accepted methods for nondestructive determination of the extent of the irradiation...

... 25 11 2008 Although efforts have been made to establish cleavage fracture model in the past 30 years or so, uncertainties remain in predicting the cleavage fracture toughness behavior of pressure vessel steels in the transition region. Confusions may be raised in cases...