Influence of Annealing Processes on Piezomagnetic Property in Fe73.5CulNb3Si13.5B9 Amorphous Alloy Strips

Yuan Fu, Youliang Zhang, Wei Guo, Xiangping Cheng


It is researched the influence rule on piezomagnetism property of Fe73.5CulNb3Si13.5B9 amorphous alloy with technology for heating processing. Result shows that the piezomagnetism property of Fe-based amorphous alloys appears favorable property at frequency of 1 KHz. Elevating the temperature of heating processing is in favor of promoting the piezomagnetism effect. In the condition of frequency at 1KHz, and continuous upload/offload stress applying process, the piezomagnetism property of Fe73.5CulNb3Si13.5B9 amorphous alloy is enhanced with increase of heating treatment temperature. When the temperature rise at 550 ℃, stress impedance (SI) effect value SI(%)=1.402 (relevant applying stress σ=0.612MPa). SI effect of Fe-based amorphous alloy is more sensitive under the stress of 0.2 MPa than above.


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