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利用真空退火,将非晶合金纳米晶化,并通过XRD试验手段验证了其纳米晶结构,研究了磁场退火对纳米晶合金软磁性能的影响。研究表明,在外加磁场条件下,对Fe_(74.5)Cu_1Nb_2Si_(13.5)B_9、(Fe_(0.5)Co_(0.5))_(73.5)Cu_1Nb_3Si_(13.5)B_9和Ni_(25)(Fe_(0.5)Co_(0.5))_(48.5)Cu_1Nb_3Si_(13.5)B_9纳米晶合金进行二次热处理,可以不同程度地减小合金的饱和磁致伸缩程度。然而,磁场退火后纳米晶合金在较低温度下的初始磁导率出现了不同程度的降低,原因可以归结为:在磁场退火的过程中,感生出的单轴各向异性增加了合金总的各项异性。
The nanocrystalline amorphous alloy was annealed by vacuum annealing. The nanocrystalline structure was verified by XRD. The effect of annealing on the soft magnetic properties of the nanocrystalline alloy was also studied. The results show that Fe_ (74.5) Cu_1Nb_2Si_ (13.5) B_9, (Fe_ (0.5) Co_ (0.5)) _ (73.5) Cu_1Nb_3Si_ (13.5) B_9 and Ni_ (25) (0.5)) _ (48.5) Cu_1Nb_3Si_ (13.5) B_9 nanocrystalline alloys for secondary heat treatment can reduce the degree of saturation magnetostriction of the alloy to varying degrees. However, the initial magnetic permeability of the nanocrystalline alloy after magnetic field annealing shows a different degree of reduction at lower temperature, the reason can be attributed to: uniaxial anisotropy induced in the magnetic field annealing process increases the total alloy The opposite sex.