Hodnocení lomového chování ocelí pro energetiku

Abstract

This work deals with the evaluation of fracture toughness of low-alloy steel 15128, used in conventional energy, at room temperature, the results of penetration tests. In the theoretical section lists the reasons leading exp development and implementation of methods for evaluating the yield strength, the ultimate strength, DBTT (Ductile Brittle Transition Temperature) and fracture toughness and creep characteristics. The experimental part of the work is devoted to determining the correlation between the fracture toughness terms of the parameters J0, 2BL set of JR curve "offset method" for stable crack growth 0.2 mm from the design curves of deformation and fracture penetration test.