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LDING RESEARCH
SUPPLEMENT TO THE WELDING JOURNAL, NOVEMBER 2004
Sponsored by the American Welding Society and the Welding Research Council
Physical and Welding Metallurgy of
Gd-Enriched Austenitic Alloys for Spent
Nuclear Fuel Applications —
Part I: Stainless Steel Alloys
The solidification temperature range of these alloys was found to be very large,
leading to poor hot ductility and weldability
ABSTRACT. The development of Gdenriched austenitic alloys is currently being considered for nuclear criticality control in spent nuclear fuel storage applications. In this research, the physical and welding metallurgy of Gd-enriched austenitic alloys has been investigated with a combination of differential thermal analysis, Varestraint and Gleeble tests, and various microstructural characterization techniques. The results of Gd additions made to a 316L stainless steel-type matrix are presented in this article, and similar information is provided for Gdenriched Ni-based alloys in the Part II companion article.
