J. Phys. IV France 08 (1998) Pr2-523-Pr2-526
Ordering and magnetic after-effect in micro- and polycrystalline Fe-6.5%Si samplesW.H. Ciurzynska1, J. Zbroszczyk1, J. Olszewski1, Y. Tanaka2, M. Hasiak1, A. Blachowicz1 and S. Szymura1
1 Institute of Physics, Technical University of Czestochowa, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland
2 Materials and Processing Research Center, NKK Corporation, Kawasaki 210, Japan
The microstructure and disaccommodation of the magnetic susceptibility for micro- and polycrystalline Fe-6.5%Si samples (with initially different order) aged at 973 K were studied. It is stated that ageing the sample in which initially the short range order occurrs, leads to the appearance of the Fe-Si structure. This is accompanied by the increase of the disaccommodation amplitude. The isochronal disaccommodation curves were decomposed into five elementary processes and their activation energies were calculated.
© EDP Sciences 1998