Some Metallurgical Aspects of Phase Transformation Mechanism in Uranium-Ruthenium Alloys
The effect of ruthenium on the transformation temperatures and mechanism in U-Ru alloys having Ru content ranging from 0.05–0.10 at.% have been investigated using dilatometry and differential thermal analysis. Structural changes were also followed by metallographies X-ray and electron microscopic techniques. It was found that the addition of Ru lowers the transformation temperatures in uranium. The degree of lowering increases as the Ru content increases. Dilatometry and differential thermal analysis for all compositions showed the appearance of two-phase transformations except for the U-3 at.% Ru alloy which exhibited three apparent phase transformations during cooling. A mechanism for such types of transformations was proposed.
KeywordsDifferential Thermal Analysis Transformation Temperature Natural Light Reference Specimen Electron Beam Melting
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