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CRYSTALLIZATION AND MAGNETIC PROPERTIES FOR Co_(66)Fe_4Mo_2Si_(16) AMORPHOUS ALLOY |
HE Shuli; HE Kaiyuan; WANG Zhi; CHENG Llzhi; FU Yujun (Depertment of Mate-rials Science and Engineering; Norlheastern University; Shenyang 110006); SUN Wei; LI Yiyao; ZHAO Zhijiang (Analysizing and Testing Center; Liaoning Provlhce Shenyang 110015) (Manuscript received 1996-08-02; in revised form 1997-04-20) |
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Cite this article:
HE Shuli; HE Kaiyuan; WANG Zhi; CHENG Llzhi; FU Yujun (Depertment of Mate-rials Science and Engineering; Norlheastern University; Shenyang 110006); SUN Wei; LI Yiyao; ZHAO Zhijiang (Analysizing and Testing Center; Liaoning Provlhce Shenyang 110015) (Manuscript received 1996-08-02; in revised form 1997-04-20). CRYSTALLIZATION AND MAGNETIC PROPERTIES FOR Co_(66)Fe_4Mo_2Si_(16) AMORPHOUS ALLOY. Acta Metall Sin, 1997, 33(8): 880-884.
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Abstract Amorphous ribbons with the composition of Co66Fe4Mo2Sil6 have been isothermally annealed and isochronally annealed. During the isothermal annealing at 460 ℃, the initial permeability μi of the sample annealed for 45 min exhibited a maximum of 11.3 × 104 and the electron diffraction pattern revealed that the sample was still in the amorphous state. But it was observed that the magnetostriction λs varied from negative to positive value and ran through zero at about 45 min. So, it can be understood that the maximum of μi re-sulted from zero λs. In the process of isochronal annealing, a little α-Fe solid solution began to be produced in the sample annealed at 48O ℃. It was clear that the formation of a little amount of α-Fe phase resulted in a dramatic decrease in the magnetic properties.
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Received: 18 August 1997
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