Numéro
J. Phys. IV France
Volume 04, Numéro C3, Février 1994
36ème Colloque de Métallurgie de l'INSTN
CHANGEMENTS DE PHASES ET MICROSTRUCTURES
Page(s) C3-193 - C3-197
DOI http://dx.doi.org/10.1051/jp4:1994327
36ème Colloque de Métallurgie de l'INSTN
CHANGEMENTS DE PHASES ET MICROSTRUCTURES

J. Phys. IV France 04 (1994) C3-193-C3-197

DOI: 10.1051/jp4:1994327

Etude de la précipitation du cuivre sous irradiation électronique dans des alliages dilués à base de fer

M.H. MATHON1, F. MAURY1, A. BARBU1, N. SMETNIANSKY1, N. LORENZELLI1, C.H. DE NOVION1 and F. BOUE2

1  Laboratoire des Solides Irradiés, Ecole Polytechnique, 91128 Palaiseau, France
2  Laboratoire Léon Brillouin, CE/Saclay, 91191 Gif-sur-Yvette, France


Abstract
The copper precipitation in dilute ferritic alloys ( FeCu et FeCuMn ) has been studied under electron irradiation in the 170-370°C temperature range. The matrix depletion at low fluence has been followed by in situ electrical resistivity measurements, the mean radius and the number density of precipitates have been measured at higher fluence by Small Angle Neutron Scattering. The copper precipitation is not affected by manganese at 300°C but is strongly inhibited at 215°C. It is shown that a simple radiation enhanced precipitation model can reproduce quit well the first stage of precipitation but fails in the pure coarsening regime.



© EDP Sciences 1994