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Acta Metall Sin  1985, Vol. 21 Issue (3): 99-105    DOI:
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MAGNETIC PERMEABILITY RELAXATIONS IN AMORPHOUS ALLOYS(Fe_(0.1)Ni_(0.55)Co_(0.55))_(78)Si_8B_(14) AND Fe_(40)Ni_(38)Mo_4B_(18)
ZHANG Yanzhong;CHENG Dong;ZHANG Dongping Shanghai Iron and Steel Research Institute
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ZHANG Yanzhong;CHENG Dong;ZHANG Dongping Shanghai Iron and Steel Research Institute. MAGNETIC PERMEABILITY RELAXATIONS IN AMORPHOUS ALLOYS(Fe_(0.1)Ni_(0.55)Co_(0.55))_(78)Si_8B_(14) AND Fe_(40)Ni_(38)Mo_4B_(18). Acta Metall Sin, 1985, 21(3): 99-105.

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Abstract  The kinetic behaviour of the reversible magnetic permeability relaxation inthe amorphous(Fe_(0.1)Ni_(0.35)Co_(0.55))_(78)Si_8B_(14)and Fe_(40)Ni_(38)Mo_4B_(18)alloys has been inves-tigated under the temperature range of 0—300℃.The isochronal relaxation spec-tra were found and each of them is characterized by three relaxation peaks.Thedistributions of the relaxation times and the most probable values of the activationenergies were estimated.The effect of the annealing and rather slow cooling aboveCurie temperature on the kinetics of relaxation was also studied preliminarily.Sincea quite similar behaviour was observed on these two alloys with substantiallydifferent compositions,it is believed that the magnetic permeability relaxation ismainly resulted from the local motion of elemental mobile anisotropic structuraldefects and their compositional effect seems to be of minor importance.
Received:  18 March 1985     
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