RECRYSTALLIZATION IN ROLLED URANIUM SHEET. Final Report--Metallurgy Program 4.1.5
X-ray diffraction measurements of uranium sheet reduced 76% in thickness at room temperature and after annealing at various temperatures indicated that as- rolled and recrystallized materials have different preferred orientations, contrary to previously reported works. The preferred orientations of samples annealed at 380 and 400 deg C were very similar, but different from that of a set of samples annealed at 450 deg C. Reannealing at 450 deg C did not change essentially the preferred orientation established by annealing at 380 deg C. Dilatometric measurements in directions parallel and normal to the rolling direction and lying in the plane of rolling did not conclusively substantiate the x-ray diffraction measurements. Recrystallization at temperatures from 360 to 450 deg C of the homogeneously deformed as-rolled structure was characterized by the formation of extremely fine grains in the early stage which later were absorbed by growth of somewhat larger grains. Evidence of ordinary secondary recrystallization was observed in specimens annealed at 600 deg C. (auth)
- Research Organization:
- Argonne National Lab., Ill.
- DOE Contract Number:
- W-31109-ENG-38
- NSA Number:
- NSA-16-019332
- OSTI ID:
- 4830173
- Report Number(s):
- ANL-6327
- Country of Publication:
- United States
- Language:
- English
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