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金属学报  1984, Vol. 20 Issue (4): 323-332    
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非晶合金(Fe_(0.1)Ni_(0.35)Co_(0.55))_(78)Si_8B_(14)结构弛豫的研究
张延忠
上海钢铁研究所
INVESTIGATION OF STRUCTURAL RELAXATION IN AMORPHOUS ALLOY (Fe_(0.1)Ni_(0.35)Co_(0.55))_(78)Si_8B_(14)
ZHANG Yanzhong (Shanghai Institute of Iron and Steel Research) (Manuscript received 10 February; 1983; revised manuscript 1 November; 1983)
引用本文:

张延忠. 非晶合金(Fe_(0.1)Ni_(0.35)Co_(0.55))_(78)Si_8B_(14)结构弛豫的研究[J]. 金属学报, 1984, 20(4): 323-332.
. INVESTIGATION OF STRUCTURAL RELAXATION IN AMORPHOUS ALLOY (Fe_(0.1)Ni_(0.35)Co_(0.55))_(78)Si_8B_(14)[J]. Acta Metall Sin, 1984, 20(4): 323-332.

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摘要: 利用低能核物理技术,通过磁参量和电阻的测量以及利用DSC方法,研究了非晶合金(Fe_(0.1)Ni_(0.35)Co_(0.55))_(78)Si_8B_(14)的结构弛豫和转变。结果表明,在50—500℃范围内,结构弛豫和转变可分为四个阶段。在175—200℃和400—420℃区域内产生两种不同特征的结构弛豫,对应着磁性的不同变化。结构弛豫中发展了化学短程序和拓扑短程序,产生感生磁各向异性。考查了低温结构弛豫和高温转变的动力学行为。用结构缺陷模型讨论了结构弛豫中结构缺陷的变化。
Abstract:The structural relaxation and transformation in the amorphous alloy (Fe_(0.1) Ni_(0.35)Co_(0.55))_(78)Si_8B_(14) have been investigated by measurements of ~(57)Fe M()ssbauer spectra, parameters of positron annihilation, permeability disaccommodation, magnetic torque and isothermic change of electrical resistance, as well as by DSC method. The results showed that four stages of the structural relaxation and transformation are presented in the temperature range of 50—500℃. Two different features of the structural relaxation in thet emperature range of 175—200℃ and 400—420℃ respectively are found to correspond with the different changes of the magnetic properties. The chemical and the topological short range orders are obviously developed in the structural relaxation so as to give rise to an induced magnetic anisotropy. The kinetic behaviour of the structural relaxation at low temperature and the transformation at elevated temperature was discussed. The variation of the defect structure in the structural relaxation was explained by the Egami's model of defect structure.
收稿日期: 1984-04-18     
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