Ion-irradiation-induced damage of steels characterized by means of nanoindentation
Ion-irradiation-induced damage of steels characterized by means of nanoindentation
Heintze, C.; Recknagel, C.; Bergner, F.; Hernández-Mayoral, M.; Kolitsch, A.
Self-ion irradiation was used to simulate the damage caused by fast neutrons in the austenitic stainless steel SS 304 SA, the ferritic/martensitic steel Eurofer97 and a Fe-9at%Cr model alloy. The irradiation-induced hardness change in the damage layer was evaluated by means of nanoindentation. Three-step irradiations were performed at room temperature and 300°C up to 1 and 10dpa. An irradiation-induced hardness change was shown for all materials. No influence of irradiation temperature could be resolved. Irradiation-induced hardening exhibits different fluence dependencies in Eurofer97 and Fe-9at%Cr. While the data indicate a saturation-like behaviour for Fe-9at%Cr, a monotonous increase of hardness with fluence up to 10dpa was found for Eurofer97.
Keywords: self-ion irradiation; nanoindentation; irradiation hardening; iron base alloys
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Poster
IBMM 08 - 16th International Conference on Ion Beam Modification of Materials, 31.08.-05.09.2008, Dresden, Deutschland - Nuclear Instruments and Methods in Physics Research B 267(2009), 1505-1508
Permalink: https://www.hzdr.de/publications/Publ-11664
Publ.-Id: 11664