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Two batches of subsize V-notched impact bend specimens and subsize tensile specimens have been irradiated in the Saphir test reactor. The first batch of specimen has been irradiated at 250 C to a dose of 2.65 E19 n cm{-2} (0.042 dpa) and the second batch has been irradiated at 400 C to a dose of 8.12 E12 n cm{-2} (0.13 dpa). Three different materials in three different microstructures were irradiated: pure iron and two ferritic steels, the alloy MANET 2 and a low activation composition CETA. The results of the impact tests and of the corresponding tensile test are presented. Despite the very low neutron dose, a significant shift of the ductile to brittle transition temperature is observed. The influence of the test temperature on the impact energy is discussed for the irradiated and unirradiated conditions, with special emphasis on the microstructure.

Additional information

Authors: BELIAHOV I, Central Research Institute for Structural Materials, Sankt-Petersburg (RU);MARMY P, Centre de Recherche en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Association EURATOM-Confédération Suisse (CH)
Bibliographic Reference: Article: Journal of Nuclear Materials
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