Abstract
Two austenitic stainless steels, one with composition of DIN 1.4970 containing about 40 ppm boron and another with a chemical composition close to DIN 1.4970, except having extremely low boron content of ≈ 2 ppm are irradiated with thermal neutrons at a temperature of 850 K to a thermal fluence of 2.6 × 10 25 m −2 . The post irradiation creep behaviour of these two steels is investigated at 973 K in vacuum and the results are correlated with the irradiation induced microstructural changes, as studied by transmission electron microscopy. It has been observed that the steel having less boron, and eventually less helium produced as a result of the B(n, α)Li reaction, exhibited higher losses in creep strength than the steel having more boron. The results indicate the possibility of another embrittling mechanism, besides helium embrittlement.
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.
