Abstracts and Available Papers Presented at the
2004 International RERTR Meeting
CNEA EXPERIMENTS TO APPLY FRICTION STIR WELDING TO ENCASE U-MO FOILS IN AL
Cabot P., Moglioni A.
ENDE, CAC, CNEA
Avda. Gral Paz 1499 1650 San Martin, Argentina
Mirandou M., Balart S.
Dpto. Materiales
Avda. Gral Paz 1499 1650 San Martin, Argentina
ABSTRACT
U-Mo dispersed fuel can not fulfill the U density requirements for high flux reactors. Besides, in-pile experiments have shown a large interaction between the fuel particles and the matrix. Replacing dispersed fuel by an U-Mo foil has been proposed and is currently under investigation as a possible solution to these problems. Friction stir welding is being experimented at ANL to fabricate fuel plates. Supported by the ENDE - CAC - CNEA experience in FSW, experiments have been started. Successful weld were obtained between aluminum and stainless steels (as subrogate material instead U-Mo) which allowed the selection of optimum parameters. This were applied to encase stainless steel and U-Mo foils in aluminum plates. The first objective was the implementation of the process, optimization of operative parameters and selection of the adequate tests to qualify the welding. The second objective was to apply these techniques to fabricate U-Mo /Al alloys diffusion couples. First results are presented.
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Contact:
Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
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