Abstract
The grain boundary migration in solution-annealed Fe-17% Cr-12% Ni alloy and Type 316 stainless steels during electron-irradiation at temperatures of 673 to 873 K was continuously observed with a high voltage electron microscope. The grain boundary migration begins after irradiation to about 3 dpa, prior to the visible void formation. Large voids are formed in the area swept by the migrating grain boundary, which results in large swelling in that area compared with the rest of the matrix. Remarkable depletion of chromium occurs in the swept area of the Fe-Cr-Ni ternary alloy, and massive M 23C 6 type carbide precipitates are found in front of the migrating grain boundary in the 316 steel. The carbide impedes the grain boundary migration after irradiation beyond about 20 dpa.
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.
