The influence of a magnetic field upon magnetostriction and magnetomechanical coupling (k) was measured in new Fe73.5Cu1Ta3Si15.5B7 strips annealed in vacuum for 1 h from 400°C to 600°C. The maximum values of k (=0.5) were observed. After annealing at 550°C the magnetostriction dropped from 24×10−6 to 0. After annealing at 500°C and above a nanocrystalline structure was observed.
Kaczkowski, Z., Ruuskanen, P., Muller, M., & Lanotte, L. (1998). Influence of annealing in vacuum on magnetostriction, magnetomechanical and structural properties of Fe73.5Cu1Ta3Si15.5B7 alloy. Journal of Magnetism and Magnetic Materials, 185(1), 115-117. https://doi.org/10.1016/S0304-8853(97)00271-0