Fabrication and characterization of uranium-6--niobium alloy plate with improved homogeneity
Chemical inhomogeneities produced during arc melting of uranium--6 weight percent niobium alloy normally persist during fabrication of the ingot to a finished product. An investigation was directed toward producing a more homogeneous product (approx. 13.0-mm plate) by a combination of mechanical working and homogenization. Ingots were cast, forged to various reductions, homogenized under different conditions, and finally rolled to 13.0-mm-thick plate. It was concluded that increased forging reductions prior to homogenization resulted in a more homogeneous plate. Comparison of calculated and experimentally measured niobium concentration profiles indicated that the activation energy for the diffusion of niobium in uranium--niobium alloys may be lower than previously observed.
- Research Organization:
- Oak Ridge Y-12 Plant, TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6350467
- Report Number(s):
- Y-2135
- Country of Publication:
- United States
- Language:
- English
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Homogenization of arc-melted uranium-6 weight percent niobium alloy ingots
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