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Mechanical Behavior and Structure of Advanced Fe-Cr-Al Alloy Weldments...

by Maxim N Gussev, Kevin G Field, Ercan Cakmak, Yukinori Yamamoto
Publication Type
Conference Paper
Book Title
Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors
Publication Date
Page Numbers
201 to 214
Conference Name
Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors (EDM 2017)
Conference Location
Portland, Oregon, United States of America
Conference Sponsor
TMS
Conference Date
-

FeCrAl alloys are promising for developing accident tolerant nuclear fuel claddings. These alloys showed good environmental compatibility and oxidation resistance in elevated-temperature water and steam, as well as low radiation-induced swelling. However, FeCrAl alloys may suffer from several degradation mechanisms, one of which may be a susceptibility to cracking during welding. Here, a set of advanced modified FeCrAl alloys were designed and produced by varying Al-content and employing additions of Nb and TiC. Strength, ductility, and deformation hardening behavior of the advanced FeCrAl alloys and their weldments are discussed.