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Study of nanocrystallization process in FeCrCuNbSiB amorphous alloys by Young’s modulus measurements

N. BAYRI1,* , S. ATALAY1, V. S. KOLAT1, T. IZGI1, P. SOVAK2

Affiliation

  1. Inonu University, Science and Arts Faculty, Physics Department Malatya, Turkey
  2. P.J. Safarik University, Department of Physics, Kosice, Slovakia

Abstract

This paper presents the influence of nanocrystallization process on magnetic field dependence of Young’s Modulus of Fe74- xCrxCu1Nb3Si13B9 (x=0, 2, 4, 8, 11) alloys. The samples were annealed between 450 ºC and 600 ºC for 1 hour under argon atmosphere to induce various nanocrystalline fractions. The variation in the microstructure upon annealing was examined by the X-ray spectrum data. Samples annealed at 500 ºC or at higher temperature showed nanocrystalline α-Fe (Si) phase embedded in amorphous matrix. It was observed that the magnitude of field dependence of Young’s modulus varies from 40% to a nearly zero as the saturation magnetostriction is reduced by nano size α-Fe(Si) grains. The results are interpreted partly in terms of internal stress relief and reduced magnetostriction in nanocrystalline samples..

Keywords

Nanocrystalline materials, Young’s modulus, magnetoelastic properties.

Submitted at: Nov. 6, 2014
Accepted at: Sept. 9, 2015

Citation

N. BAYRI, S. ATALAY, V. S. KOLAT, T. IZGI, P. SOVAK, Study of nanocrystallization process in FeCrCuNbSiB amorphous alloys by Young’s modulus measurements, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 9-10, pp. 1372-1378 (2015)