Study on the Activation Energy of Nanocrystallization of Amorphous Fe78Si9B13 Alloy Treated by Low Frequency Pulse Magnetic Field

Ying Chun Zhou; Qi Jian Zhang

doi:10.4028/www.scientific.net/AMR.299-300.584

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 299-300Study on the Activation Energy of...

Study on the Activation Energy of Nanocrystallization of Amorphous Fe₇₈Si₉B₁₃ Alloy Treated by Low Frequency Pulse Magnetic Field

Abstract:

The amorphous Fe₇₈Si9B13 alloy was treated by low frequency pulse magnetic field (LFPMF). The microstructure was observed by Mössbauer spectroscopy and Transmission Electron Microscope. The activation energy of nanocrystallization of amorphous alloy Fe78Si9B13 treated by low frequency pulse magnetic field was determined by differential scanning calorimetry (DSC). The results indicated that the activation energy was decreased from 433.6kJ.mol-1 to less than 200kJ.mol-1 after LFPMF. The nucleating rate of α-Fe(Si) was increased and there was only single phase α-Fe(Si) crystalline formed.

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Periodical:

Advanced Materials Research (Volumes 299-300)

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584-587

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.299-300.584

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Online since:

July 2011

Authors:

Ying Chun Zhou, Qi Jian Zhang

Keywords:

Activation Energy, Amorphous Alloy, Low Frequency Pulse Magnetic Field, Nanocrystallisation

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