Physical and Welding Metallurgy of Gd-Enriched

July 21st, 2009

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FILES FORMAT: PDF
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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.

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