열처리공학회지 (Journal of the Korean Society for Heat Treatment)

  • 제8권2호
  • /
  • Pages.149-154
  • /
  • 1995
  • /
  • 1225-1070(pISSN)
  • /
  • 2508-4046(eISSN)
한국열처리공학회 (The Korean Society for Heat Treatment)
권호 표지

급속응고된 Fe-6.5wt% Si 강판의 미세조직과 자기적 특성에 미치는 열처리의 영향

Effect of Heat Treatment on Microstructures and Magnetic Properties of Rapidly Solidified Fe-6.5wt % Si sheet

  • 황동하 (충남대학교 공과대학 금속공학과 급속응고 신소재연구소) ;
  • 이갑호 (충남대학교 공과대학 금속공학과 급속응고 신소재연구소) ;
  • 이태행 (천안공업전문대학 열처리과) ;
  • 구자명 (천안공업전문대학 열처리과)
  • Hwang, D.H. (Dept. of Metallurgical Engineering, Chungnam National University) ;
  • Lee, K.H. (Dept. of Metallurgical Engineering, Chungnam National University) ;
  • Lee, T.H. (Dept. of Heat-treatment, Cheon-An Technical Jr. College) ;
  • Koo, J.M. (Dept. of Heat-treatment, Cheon-An Technical Jr. College)
  • 발행 : 1995.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The alloying of 6.5wt % Silicon in iron decreases the magnetization and the anisotropy and minimizes the iron loss noticeably. But it is very difficult to make thin sheets because of its poor ductility which is due to an ordering reaction (body centered cubic to CsCI type crystal structure). However the ordering reaction can be suppressed by rapid solidification method. The cooling rate of rapidly solidified Fe-6.5wt % Si alloy is about $10^3K/s$ and rapidly solidified structure are fine structure, cellular structure, dendrite and equiaxed grain from surface. The precipitates of $DO_3$ Phase emerges on $B_2$ matrix and the coercive force was 0.51 Oe (50cycle, 15KGauss) in Fe-6.5wt% Si alloy which was processed by heat treatment of $1150^{\circ}C$ for 1hr in high vacuum.

키워드