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首页> 外文期刊>Journal of Iron and Steel Research International >Giant Stress-Impedance Effect in Co_(71.8)Fe_(4.9)Nb_(0.8)Si_(7.5)B_(15) Glass-Covered Amorphous Wires
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Giant Stress-Impedance Effect in Co_(71.8)Fe_(4.9)Nb_(0.8)Si_(7.5)B_(15) Glass-Covered Amorphous Wires

机译：Co_（71.8）Fe_（4.9）Nb_（0.8）Si_（7.5）B_（15）玻璃包覆的非晶丝中的巨大应力阻抗效应

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摘要

The giant stress-impedance (GSI) effect in as-cast and DC current annealed Co_(71.8)Fe_(4.9)Nb_(0.8)Si_(7.5)Bi_(15) amorphous glass-covered wires is presented. The SI ratio of the as-cast sample exhibits negative GSI effect. For the sample annealed by 60 mA DC current, the SI ratio first increases with applied tensile stress, then decreases. The maximum DELTA Z/Z ratio of 304 percent is obtained. Frequency dependence in the range from 1 to 110 MHz of the GSI effect is investigated. Experimental results show that the real part R and the imaginary part X of impedance play an important role at high frequency and low frequency, respectively. At 1 MHz, the maximum DELTA X/X ratio of 1 448 percent is obtained. At 110 MHz, the maximum DELTA R/R ratio of 648 percent is obtained.
机译：提出了铸态和直流电流退火Co_（71.8）Fe_（4.9）Nb_（0.8）Si_（7.5）Bi_（15）非晶态玻璃包覆导线的巨大应力阻抗（GSI）效应。铸态样品的SI比显示出负的GSI效应。对于通过60 mA DC电流退火的样品，SI比首先随着施加的拉应力而增加，然后降低。获得的最大DELTA Z / Z比为304％。研究了GSI效应在1到110 MHz范围内的频率依赖性。实验结果表明，阻抗的实部R和虚部X分别在高频和低频中起重要作用。在1 MHz时，最大DELTA X / X比为1448％。在110 MHz时，获得的最大DELTA R / R比为648％。

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