The effect of different heat treatments on the piezomagnetic properties and magnetostriction of Fe73.5Cu1Nb3Si13.5B9 metallic glass were investigated as a function of the bias magnetic field. The maximum values of the magnetomechanical coupling coefficient were equal to 0.15 for the as-quenched state, and 0.4 and 0.6 after annealing at 510 °C for 1/4 and 1 h, respectively. The magnetostrictive hysteresis loops were measured using the strain gauge method. The values of magnetostriction (A) at a magnetic field equal to about 3 kA/m in all cases were equal to about 22 × 10−6.
Kaczkowski, Z., Ruuskanen, P., Lanotte, L., & Muller, M. (1996). Magnetostrictive and piezomagnetic properties of the Fe73.5Cu1Nb3Sn15.5B7 metallic glass annealed in helium. Journal of Non-Crystalline Solids, 205-207, 683-686. https://doi.org/10.1016/S0022-3093(96)00467-X