EFFECT OF ROTATING MAGNETIC FIELD ANNEALING ON INDUCED ANISOTROPY OF AMORPHOUS ALLOYS
by HE Kaiyuan; WANG Qun; SUN Tinglie (Northeast Institute of Technology; Shenyang)
Cite this article:
by HE Kaiyuan; WANG Qun; SUN Tinglie (Northeast Institute of Technology; Shenyang). EFFECT OF ROTATING MAGNETIC FIELD ANNEALING ON INDUCED ANISOTROPY OF AMORPHOUS ALLOYS. Acta Metall Sin, 1986, 22(6): 114-119.
Abstract The effect of rotating magnetic field annealing (RMA) on the anisotropy has been studied using a disk specimen of amorphous alloy Fe_4Co_(66)Ni_2Ta_2Si_(10)B_(16), Fe_5Co_(70)Si_(15)B_(10) and Fe_(40)Ni_(40)B_(20). The induced variation of anisotropy of the alloys on the process of isothermal annealing at 260—280℃ was measured in a rotating magnetic field with different speeds. During RMA, the value of K_u already induced in the specimen decreases monotonically with annealing time and its decreasing rate is independent of the rotation speed of field applied. The anisotropy induced by RMA in common practical conditions is very small and can be neglected. The experimental results may be explained by a simple theory proposed by the authors.
