Published 1960
| Version v1
Report
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Present day state of knowledge of α/β allotropic transformation of uranium
Creators
- 1. Commissariat a l'energie atomique et aux energies alternatives - CEA, Service de Technologie, Departement de Metallurgie et de Chimie Appliquee, Saclay (France)
Description
The technological conditions of the problem of α/β allotropic transformation of uranium are presented first. Then, the author explains the qualitative reasons why in non-allied uranium: 1) the new phase germination follows a consistent process; 2) the new phase growth, at the expense of the mother phase, proceeds either by martensitic-type shear or by thermal diffusion if the temperature and impurities amount are high enough. Reprint of a paper published in La Mettalurgia Italiana, vol. LI, no. 11, p. 497-504, 1959
Abstract (French)
Il est montre d'abord dans quelles conditions se pose technologiquement le probleme de la transformation allotropique α/β de l'uranium. L'auteur expose ensuite les raisons qualitatives selon lesquelles il y a lieu d'admettre que dans l'uranium non allie: 1) la germination de la nouvelle phase s'effectue par un processus coherent; 2) la croissance de la nouvelle phase au detriment de la phase mere s'opere soit par cisaillement de type martensitique, soit par diffusion thermique si la temperature et le taux d'impuretes sont suffisants. Reproduction d'un article publie dans La Mettalurgia Italiana, vol. LI, no. 11, p. 497-504, 1959Files
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Additional details
Additional titles
- Original title (French)
- L'etat actuel des connaissances sur la transformation allotropique α-β de l'uranium
Identifiers
Publishing Information
- Imprint Pagination
- 9 p.
- Report number
- CEA-R--1508
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 49031331
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOTROPY; ANNEALING; CHEMICAL REACTION KINETICS; CRYSTAL GROWTH; CRYSTAL-PHASE TRANSFORMATIONS; GERMINATION; GRAIN ORIENTATION; GRAIN SIZE; IMPURITIES; QUENCHING; RECRYSTALLIZATION; SHEAR; STRAIN HARDENING; STRESS RELAXATION; TEXTURE; THERMAL CYCLING; THERMAL DIFFUSION; URANIUM-ALPHA; URANIUM-BETA
- Descriptors DEC
- ACTINIDES; DIFFUSION; ELEMENTS; HARDENING; HEAT TREATMENTS; KINETICS; METALS; MICROSTRUCTURE; ORIENTATION; PHASE TRANSFORMATIONS; REACTION KINETICS; RELAXATION; SIZE; URANIUM
Optional Information
- Notes
- Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/