Abstract
The effect of 14 MeV neutron irradiation on the mechanical properties of pure Fe and fusion reactor candidate stainless steels such as JPCA (Japanese Prime Candidate Alloy) and JFMS (Japanese Ferritic/Martensitic Stainless Steel) have been investigated using small size tensile specimens. Both austenitic (JPCA) and ferritic/martensitic (JFMS) stainless steels showed significant hardening in the neutron fluence region between 1 sx 10 21 n/m 2 and 5 sx 10 22 n/m 2 for room temperatu irradiation and room temperature tensile testing. The increase of the yield stress roughly followed as 1 2 power of the neutron fluence. However, in lower fluence region behaviours were different, namely, no hardening was observed in JFMS and softening was observed in JPCA. The isochronal annealing experiments showed that the hardening recovers above 400°C. The results of pure Fe differed from the results of the alloys. The difference is attributed to the high mobility of radiation-induced defects in Fe.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
