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X-ray diffraction characterization of microstrain in some uranium alloys

Published online by Cambridge University Press:  10 January 2013

G. Kimmel  and
D. Dayan
G. Kimmel
Affiliation:
Nuclear Research Center Negev, P. O. Box 9001, Beer-sheva, Israel
D. Dayan
Affiliation:
Nuclear Research Center Negev, P. O. Box 9001, Beer-sheva, Israel
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Abstract

Taking advantage of the feasibility to obtain well-prepared surfaces, an extensive work has been done in studying X-ray diffraction line broadening effects from flat polycrystalline samples of uranium and uranium alloys. The broadening analysis has been used as a semiquantitative method for measuring inhomogeneity of alloying, hardness, and residual thermal stresses. Good correlation between the microstrain and the hardness was found after heat treatments and cold work. A comparable correlation was found between the microstrain in the supersaturated α-uranium phase quenched from the γ region, and the concentration of the alloying elements. The measured microstrain in the supersaturated α-uranium phase was used as a quantitative value for determination of the solubility limit of Ta and W in γ-uranium. As a result of this study it was found that the limit of solubility is approximately 2.6 and 2.0 at. % for Ta and W, respectively.

Type
Research Article
Information
Powder Diffraction , Volume 13 , Issue 2 , June 1998 , pp. 89 - 95
Copyright
Copyright © Cambridge University Press 1998

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