STUDY OF THE MICROSTRUCTURAL EVOLUTION OF ALPHA-QUENCHED OR COLD-ROLLED ZIRCONIUM ALLOYS DURING ISOTHERMAL AGINGS BETWEEN 20-DEGREES-C AND 400-DEGREES-C

Authors
MERLE P LOUCIF K ADAMI L BORRELLY R
Citation
P. Merle et al., STUDY OF THE MICROSTRUCTURAL EVOLUTION OF ALPHA-QUENCHED OR COLD-ROLLED ZIRCONIUM ALLOYS DURING ISOTHERMAL AGINGS BETWEEN 20-DEGREES-C AND 400-DEGREES-C, Journal of nuclear materials, 208(1-2), 1994, pp. 135-143
Citations number
22
Categorie Soggetti
Nuclear Sciences & Tecnology","Metallurgy & Mining","Material Science
Journal title
Journal of nuclear materials → ACNP
ISSN journal
00223115
Volume
208
Issue
1-2
Year of publication
1994
Pages
135 - 143
Database
ISI
SICI code
0022-3115(1994)208:1-2<135:SOTMEO>2.0.ZU;2-L
Abstract
The thermoelectric power (TEP) at 20-degrees-C of cold rolled or quenc hed zirconium alloys has been measured as a function of aging time at temperatures between 20 and 400-degrees-C, Two stages of TEP evolution are observed in cold-rolled specimens and are attributed respectively to the migration of oxygen atoms towards dislocations, and to the for mation of oxygen clusters on dislocation nodes, the diffusion of oxyge n atoms being enhanced by vacancies due either to cold rolling or to q uench. Only the first stage is observed in specimens quenched from the upper limit of the alpha-domain, due to the low density of quench dis locations.