Abstract
Lattice strains induced by cooling textured, depleted U, from 500 °C to ambient temperature are measured using in situ neutron diffraction and simulated using an elastoplastic self-consistent polycrystal model. The results show that the high anisotropy of the single-crystal thermoelastic response induces thermal stresses sufficient to cause plastic relaxation. Incorporation of ½ 〈 1 1 ¯ 0 〉 { 1 1 0 } slip enables modeling of the observed internal strain evolution, although diffusional effects may also contribute to the observed relaxation.
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