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The results of evaluating the reference temperature T0 are presented and Master Curve is constructed from the experimental data for steel 15Cr2MoVA (base metal of WWÉR-440 reactor pressure vessel) in three states: unirradiated, irradiated, and irradiated under stress. It is shown that mechanical load, which simulates the coolant pressure, accelerates radiation embrittlement, whose contribution is...
This paper considers the results of testing reactor steel JRQ involving determination of the fracture toughness and the reference temperature T0, construction of a Master Curve, and evaluation of the boundaries of regions with different failure probability. The tests were conducted on small specimens (1/2T) made from blocks of steel JRQ supplied by the IAEA within the framework of the Round Robin...
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