Abstract
This lecture starts with a short description of the effects of radiation on materials. Problems arise when irradiating and subsequently testing FM specimens: the irradiation facility has its space limitations; the gamma heating generated thermal gradients and the specimen post-irradiation activity (necessitating handling in hot cells) increase with increasing size. Therefore, attention must be given to the development of measurement techniques that are suitable also for subsized specimens. The lecture describes the JRC research programme set up for elaborating J-R curves of Liquid Metal Fast Breeder Reactors (LMFBR) materials (specially the AISI 316H) submitted to neutron damage from 0.1 dpa to 2 dpa. The adopted method uses key curves yielding one R-curve from each specimen. Results are given for 0.1 dpa and 0.3 dpa damage for base material, weld and heat affected zone. The method is quite efficacious and has wider fields of application than the one related to irradiated materials.
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References
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© 1985 ECSC,EEC,EAEC, Brussels and Luxembourg
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Bernard, J., Verzeletti, G. (1985). Experimental Determination of Fracture Mechanics Parameters of Irradiated Materials. In: Larsson, L.H. (eds) Elastic-Plastic Fracture Mechanics. Ispra Courses on Materials, Engineering and Mechanical Science. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5380-2_6
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DOI: https://doi.org/10.1007/978-94-009-5380-2_6
Publisher Name: Springer, Dordrecht
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