Dimensional Changes in Uranium Under Thermal Cycling
- Argonne National Lab. (ANL), Argonne, IL (United States)
Uranium undergoes permanent dimensional changes when thermal cycled in the alpha-temperature range without passing through any phase transformations. This deformation is attributed to the anisotropy of thermal expansion inherent in noncubic metals. Alpha uranium, which is orthorhombic, is especially susceptible because of its high anisotropy of thermal expansion. Uranium rods prepared by a wide variety of fabrication an'd heat-treat methods were thermal cycled between 100°C and 550°C. Observations were made on the effects of fabrication technique, heat treatment, and thermal cycling on the dimensions, surface roughening, microstructure, and preferred orientation of these rods.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 1133923
- Report Number(s):
- ANL-FF--54
- Country of Publication:
- United States
- Language:
- English
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