Influence of irradiation on the ductile fracture of a reactor pressure vessel steel
Source abstract
Abstract
The mechanical properties of 15Ch2MFA steel were characterised by tensile and instrumented Charpy tests. The fracture surfaces of Charpy specimens broken in the ductile-to-brittle transition temperature range contain a certain proportion of ductile fracture correlated to fracture energy. Measured ductile crack lengths show the same dependence on fracture deflection and/or fracture energy for irradiated and non-irradiated specimens. The decrease of upper shelf energy with increasing neutron fluence could be explained by an increasing amount of shear fracture.
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Research context
OpenAlex topics: Metal Forming Simulation Techniques · Microstructure and Mechanical Properties of Steels · Fusion materials and technologies
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References (11)
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