SECONDARY RECRYSTALLIZATION AND RECRYSTALLIZATION AFTER CRITICAL COLD WORKING OF HIGH PURITY URANIUM (in French)
Journal Article
·
· Journal of Nuclear Materials (Netherlands)
The growth of large grains, either by secondary recrystallization after deformation by heavy rolling and prolonged annealing at high temperatures in the alpha phase, or by critical straining and annealing applied to a primary recrystallization texture, was observed in electrolytic uranium of hlgh-purity. Only uranium of high purity undergoes these two types of exaggerated grain growth. Thus, these two methods of growth provide then a very secure qualitative criterion of the purity of the uranium. The crystalline orientation of a very large number of grains formed by the two methods of growth were determined by Laue backreflection diagram. The crystals of secondary recrystallization possess a texture very much more pronounced than that displayed by the crystals produced by critlcal straining. However, in the two cases, it is remarkable that the b axis of all the crystals seems to play an important role in the growth since it is always oriented essentially parallel to the direction of rolling. It is only when a deformation is applied to the primary recrystallization texture, considerably in excess of the critical deformation that growth during further annealing of crystals having some very diverse orientations is observed. An attempt was made to explain these two modes of growth, by secondary recrystallization or by critical strain, by relating the deformation texture obtained on heavy deformation to the textures either of secondary recrystallization or of recrystallization after critical strain. (P.C.H.)
- Research Organization:
- Centre de Recherches Metallurgiques de l'Ecole des Mines, Paris
- NSA Number:
- NSA-17-039574
- OSTI ID:
- 4624600
- Journal Information:
- Journal of Nuclear Materials (Netherlands), Journal Name: Journal of Nuclear Materials (Netherlands) Journal Issue: 1 Vol. Vol: 10; ISSN JNUMA
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
Similar Records
Role of [{l_brace}123{r_brace}<634>] orientations in the preferred nucleation of cube grains in recrystallization of fcc metals
Reinforcement of the Cube texture during recrystallization of a 1050 aluminum alloy partially recrystallized and 10% cold-rolled
The development of cube and non-cube recrystallization textures
Journal Article
·
Tue Mar 14 23:00:00 EST 1995
· Scripta Metallurgica et Materialia
·
OSTI ID:27983
Reinforcement of the Cube texture during recrystallization of a 1050 aluminum alloy partially recrystallized and 10% cold-rolled
Journal Article
·
Tue Feb 14 23:00:00 EST 2012
· Materials Characterization
·
OSTI ID:22066413
The development of cube and non-cube recrystallization textures
Technical Report
·
Sat Jul 01 00:00:00 EDT 1995
·
OSTI ID:102186