Crystallization behavior of Fe78Si13B9 metallic glass under high magnetic field

Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-10-01 DOI:10.1016/S1005-8850(08)60112-7

Yuanfei Yu, Baozhu Liu, Min Qi

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引用次数: 5

Abstract

The effects of high magnetic field on the crystallization behavior of the Fe₇₈Si₁₃B₉ metallic glass ribbon were studied. The samples were isothermal annealed for 30 min under high magnetic field and no field, respectively. Microstructure transformation during crystallization was identified by X-ray diffraction and transmission electron microscopy. It was found that the crystallizations of Fe₇₈Si₁₃B₉ metallic glass processed under different conditions were that the precipitation of dendrite α-Fe(Si) and spherulite (Fe,Si)₃B phases forms amorphous matrix and then the metastable (Fe,Si)₃B phase transforms into the stable Fe₂B phase. The grain size of the crystals is smaller and more homogeneous for the isothermal annealed samples under high magnetic field in comparison with that under no field indicating that the crystallization behavior of Fe₇₈Si₁₃B₉ metallic glass is suppressed by high magnetic field.

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高磁场作用下Fe78Si13B9金属玻璃的结晶行为

研究了高磁场对Fe78Si13B9金属玻璃带结晶行为的影响。样品分别在强磁场和无磁场条件下等温退火30min。通过x射线衍射和透射电镜分析了结晶过程中的微观结构变化。结果表明:在不同条件下加工的Fe78Si13B9金属玻璃的结晶是枝晶α-Fe(Si)相和球晶(Fe,Si)3B相析出形成非晶基体，然后亚稳(Fe,Si)3B相转变为稳定的Fe2B相。高磁场条件下等温退火Fe78Si13B9金属玻璃的晶粒尺寸比无磁场条件下更小、更均匀，表明高磁场抑制了Fe78Si13B9金属玻璃的结晶行为。

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Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material

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