IRRADIATED STAINLESS STEEL CRACK GROWTH RESISTANCE CURVES
A study of the neutron damage suffered by the AISI 316-H steel commonly used in the construction of LMFBR primary circuit irremovable components is conducted at the JRC of Ispra. The fast fluences (E > 0.1 MeV) foreseen to be investigated cause neutron damage from 0.1 dpa to 2 dpa. Tests are run at 350 degrees C and 550 degrees C on base, welded and heat affected zone material. To characterize the EPFM behaviour of the metal, J-R crack growth resistance curves are elaborated. Results are given corresponding to the nought, 0.1 dpa, 0.3 dpa and 1 dpa irradiations. Tests are run in air at a temperature corresponding to the one the specimens sustained during irradiation in sodium filled capsules. Only four three point bend specimens are available per case studied. Determining J-R curves was done using a key curve based method together with J like parameters, an approach that yielded satisfactory results when applied to subsized specimens.
Bibliographic Reference: 8TH INTERNATIONAL CONFERENCE ON STRUCTURAL MECHANICS IN REACTOR TECHNOLOGY, BRUXELLES (BELGIUM), AUG. 19-23, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32197 ORA
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Record Number: 1989123059200 / Last updated on: 1987-01-01
Available languages: en