EFFECT OF LOW-TEMPERATURE VACUUM ANNEALING ON THE MAGNETIC PULSED AMORPHOUS Fe52Co34Hf7B6Cu1 ALLOY

doi:0.3724/SP.J.1037.2011.00648

Acta Metall Sin

2012, Vol. 48

Issue (6): 749-752 DOI: 0.3724/SP.J.1037.2011.00648

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EFFECT OF LOW-TEMPERATURE VACUUM ANNEALING ON THE MAGNETIC PULSED AMORPHOUS Fe₅₂Co₃₄Hf₇B₆Cu₁ ALLOY

CHAO Yuesheng, WANG Li, ZHANG Yanhui, ZHU Hanxian, LUO Liping

College of Sciences, Northeastern University, Shenyang 110819

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CHAO Yuesheng, WANG Li, ZHANG Yanhui, ZHU Hanxian, LUO Liping. EFFECT OF LOW-TEMPERATURE VACUUM ANNEALING ON THE MAGNETIC PULSED AMORPHOUS Fe₅₂Co₃₄Hf₇B₆Cu₁ ALLOY. Acta Metall Sin, 2012, 48(6): 749-752.

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Abstract The nanocrystalline Fe₅₂Co₃₄Hf₇B₆Cu₁soft magnatic alloys composed of bcc-Fe nanocrystals embedded in a residual amorphous matrix were obtained by the magneto-crystallization of melt-spun ribbons. In order to improve the soft magnetic properties of double--phase Fe(Co)--based nanocrystalline alloy, the nanocrystalline alloy specimens were vacuum annealed for 30 min at 100, 200 and 300 ℃. The results showed that the treatment of magnetic pulsing on the amorphous alloy resulted in the nanocrystallization, the grain size of precipitated α-Fe(Co) nanocrystallized phase was 5-10 nm. The low-temperature vacuum annealing of magnetic pulsed specimens further improved the soft magnetic properties of nanocrystalline alloy. The influence of annealing at 100 ℃ for 30 min on the properties is most obvious.

Key words: amorphous alloy magnetic pulsing two-phases nanocrystalline alloy low-temperature vacuum annealing magnetic property

Received: 21 October 2011

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About author: 晁月盛, 男, 1946年生, 教授

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