대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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시효조건에 다른 $Fe_{78}B_{13}Si_9$ 비정질 합금의 결정화 연구

The Effects of Aging Conditions on the Crystallization of $Fe_{78}B_{13}Si_9$ Metallic Glass

  • 이원재 (한국전기연구소 전기재료연구부 자성재료연구실) ;
  • 김기욱 (한국전기연구소 전기재료연구부 자성재료연구실) ;
  • 민복기 (한국전기연구소 전기재료연구부 자성재료연구실) ;
  • 송재성 (한국전기연구소 전기재료연구부 자성재료연구실) ;
  • 홍진완 (한국전기연구소 전기재료연구부 자성재료연구실) ;
  • 강원구 (한전기술연구원 배전연구실) ;
  • 김윤동 (한전기술연구원 배전연구실)
  • Lee, Won-Jae (Magnetic Materials tab., Electrical material Div., KERI) ;
  • Kim, Ki-Uk (Magnetic Materials tab., Electrical material Div., KERI) ;
  • Mlin, Bok-Ki (Magnetic Materials tab., Electrical material Div., KERI) ;
  • Song, Jae-Sung (Magnetic Materials tab., Electrical material Div., KERI) ;
  • Hong, Jin-Wan (Magnetic Materials tab., Electrical material Div., KERI) ;
  • Kang, Won-Koo (Distribution Lab., Research Center, KEPCO) ;
  • Kim, Yoon-Dong (Distribution Lab., Research Center, KEPCO)
  • 발행 : 1989.07.21
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초록

The effect of isothermal aging on the crystallization of $Fe_{78}B_{13}Si_9$ metallic glass has been investigated by electrical resistivity, X-ray measurements, bending test, thermal analysis and transmission electron microscpy. Amouphous $Fe_{78}B_{13}Si_9$ alloy was annealed isothermally for 5 to 1200 min. between $300^{\circ}C$ and $540^{\circ}C$. It has been found that close relation between relative resistivity and X-ray diffraction pattern showed. The crystalline peaks of ${\alpha}$-(Fe, Si) and $Fe_2B$ are detected by X-ray experiment. The crystalline phases observed by TEH show ${\alpha}$-(Fe, Si) and $Fe_2B$ with dendritic and cylindrical morphology, respectively. It has been also found that the embrittleness of aged samples rapidly increased with the crystallization and was shown before the crystallization.

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