Improvement of magneto-mechanical properties in quenched Fe-rich Fe87Ga13 alloy

Abstract We demonstrated improvement of magneto-mechanical properties, including ΔE effect and damping capacity by quenching Fe-rich Fe87Ga13 alloy related to texture transformation. The significant enhancement of about 50% from 4.1% to 6.0% in ΔE/E0 at H = 2.5 kOe (ΔEs/E0) and that of 85% from 0.74% to 1.31% in damping capacity achieved for quenched Fe87Ga13 alloy favors for applications. The almost proportional relation between ΔEs/E0 and K2 suggests that the experimentally ΔEs/E0 is consistent with theoretically calculated K2. Besides, the large change of damping capacity with H examined is mainly dominated by the micro eddy-current mechanism mainly originated from magnetic domain wall motion. The theoretically obtained (ΔW/W)eth of 0.73% and 1.35%, respectively, for the furnace-cooled and quenched Fe87Ga13 alloys are very close to the experimentally measured ζ (0.74% and 1.31%). The texture transformation from (1 1 0) into (2 0 0) after quenching may increase μR and therefore dλ///dH. As a result, the magneto-mechanical properties, including ΔEs/E0, K, and ζ are significantly improved.