Influence of Annealing Treatment on the Structure and Magnetic Properties of Fe-Al-Cu-Nb-Si-B Alloys
G. Pavlík, P. Matta, P. Sovák, A. Zorkovská and M. Konč
Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia
Full Text PDF
In this paper we present experimental results on influence of Al content on the structure and saturation magnetostriction of Fe-Al-Cu-Nb-Si-B alloys after heat treatment. Transmission electron microscopy observations confirmed the existence of nanocrystalline structure after annealing at 490°C and 550°C for all samples. The crystallization temperature of FeSi phase and the temperature at which the polycrystalline transformation starts were determined from temperature dependence of electrical resistivity. Aluminium slightly decreases the first crystallization temperature and considerably decreases the saturation magnetostriction in as-quenched state.
DOI: 10.12693/APhysPolA.97.741
PACS numbers: 61.16.Bg, 75.50.Kj, 75.80.+q, 81.40.Rs