摘要
本文报道了新开发的纳米晶Fe73.5Cu1Nb2V1Si13.5B9和Fe72.5Cu1Nb1.5Mo1.5V1Si13.5B9的高频损耗性能。采用三维拟合方法替代了传统的最小二乘法,在f=20-1000kHz和Bm=0．01-1．0T范围内,考查得到高频动态矫顽力 Hc、高频铁损P与幅值磁通密度Bm、频率f皆近似为乘方关系;此外,在不同的固定Bmf值情况下高频铁损P与Bmf、f值的关系近似为lnP≈a+b(Bmf)／ln(Bmf)+c／lnf。
The high frequency magnetic properties including coercivity and core loss of newly developed nanocrystalline Fe73.5Cu1Nb2V1Si13.5B9 and Fe72.5Cu1Nb1.5Mo1.5V1Si13.5 B9 alloys are reported. A new fitting method named 3-dimension fitting substituted for least squares method was used to investigate the dependence of high frequency coercivity Hc and core loss P on amplitude flux density Bm and frequency f in the ranges of f = 20 -1000kHz and Bm = 0.01 - 1.0T, giving a power relationship. And, the behavior of change in core loss may be described as a formula lnP≈a ＋ b（Bmf）/ln（Bmf） ＋ c/Inf.
出处
《上海钢研》
2005年第4期51-55,共5页
Journal of Shanghai Iron and Steel Research
