Effects of pulse current and rolling synergistic treatment on properties of Fe85P11C2B2 amorphous alloy

To avoid annealing embrittlement and annealing-induced resistivity drop, the Fe85P11C2B2 amorphous alloy was treated by pulse current (PC) and rolling. PC processing can enhance the mobility of atoms, leading to the formation of alpha-Fe nanocrystals and the release of internal stress, which increases the saturation magnetization (M-s) and reduces the coercivity (H-c). Rolling after PC treatment will improve the resistivity (rho) of the sample. The M-s of the sample increases from 1.54 T to 1.64 T, the resistivity enhances from 177.1 mu Omega center dot cm to 192.0 mu Omega center dot cm, and the Hc decreases from 6.4 A/m to 5.6 A/m through the synergistic treatment (PC + rolling). The treated sample maintains good bending ductility.

Automated summary

To avoid annealing embrittlement and annealing-induced resistivity drop, the Fe85P11C2B2 amorphous alloy was treated by pulse current (PC) and rolling. The PC processing enhanced atom mobility, resulting in the formation of alpha-Fe nanocrystals and release of internal stress, increasing saturation magnetization (Ms) and reducing coercivity (Hc). Rolling after PC treatment improved sample resistivity (ρ). The synergy of PC + rolling treatment increased Ms from 1.54 T to 1.64 T, enhanced resistivity from 177.1 μΩ·cm to 192.0 μΩ·cm, and decreased Hc from 6.4 A/m to 5.6 A/m. The treated sample maintained good bending ductility.