Decomposition of the phase in as-cast and quenched U-Zr alloys
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2016 Elsevier B.V. All rights reserved. An investigation of the decomposition of the high temperature phase in as-cast and quenched U-Zr alloys was conducted. Differential scanning calorimetry data clearly showed transformations in alloys with <10 wt% Zr while XRD data did not contain any peaks which uniquely identify it's presence. Since phase forms via transformation, a comparison of the theoretical diffraction patterns for and revealed that the intensities of the peaks which uniquely identify the existence of when -U is present, were either very weak, or were zero in , suggesting that the ambiguity can be explained if the phase present in these alloys is as opposed to . Our data are consistent with the presence of and in as-cast and quenched U-50Zr alloy, respectively, and ( + ) in rest of the as-cast and quenched alloys. Based on the experimental data, the transformation sequence from phase in U-Zr alloys is proposed.