Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

The Effect of Zr Element on the Properties of Continuous Casting and Rolling Materials for Al - 0.11 wt.%Fe Alloy

Al-0.11Fe계 합금에서의 Zr, Sc원소 미세첨가에 따른 연속주조재 및 압연재의 특성

  • 김병걸 (한국전기연구원 재료응용연구단) ;
  • 김상수 (한국전기연구원 재료응용연구단) ;
  • 김성규 (부경대학교 공과대학 재료공학부) ;
  • 김지상 (KTC(주)) ;
  • 김진한 (부산울산지방중소기업청 시험연구지원팀)
  • Published : 2007.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to develop non-heated STAl(super thermal resistant Aluminum alloy) for ampacity gain conductor, the systematic research was carried out. Especailly, the effect of a very small amount of Zr, Sc element in EC grade Al ingot on mechanical and electrical properties was our priority. As a result, it was found that the strength and recrystallization temperature of designed alloy was gradually increased with Zr, Sc addition up to 0.3 wt.%. However, the electric conductivity showed no drastic change. The tensile strength and recrystalliztion temperature, $17.75{\sim}20.05\;kgf/mm^2$ and $420{\sim}520\;^{\circ}C$, was obtained at 0.3 wt.% Zr, Sc addition, respectively. Particles of the $Al_3Zr$ and $Al_3Sc$ phase affected the ambient and elevated-temperature strength of the alloys.

Keywords

References

  1. 김상수, 김병걸, 박주환, '고강도저손설 가공송전선 개발( I )-기계적 특성', 전기전자재료학회논문지, 18권, 12호, p. 1152, 2005
  2. 김상수, 김병걸, 박주환, '고강도저손실 가공송전선 개발( I )-전기적 특성', 전기전자재료학회논문지, 18권, 12호, p. 1159, 2005
  3. 박종우, 임차용, '강소성 가공에 의한 고강도 나노벌크소재 제조기술', 재료마당, 16권, 5호, p. 10, 2003
  4. C. B. Fuller and D. N. Seidman, 'Temporal evolution of nanostructure of AI(Sc, Zr) alloy: Part- II -coarsening of Ab(Scl-xZrx) precotates', Acta Materialia, Vol. 53, p. 5415, 2005 https://doi.org/10.1016/j.actamat.2005.08.015
  5. C. B. Fuller, D. N. Seidman, and D. C. Dunand, 'Mechanical properties of AHSz, Zr) alloys at ambient and elevate temperatures', Acta Materialia, Vol. 51, p. 4803, 2003 https://doi.org/10.1016/S1359-6454(03)00320-3
  6. J. D. Robson, M. J. Jones, and P. B. Prangnell, 'Extension of the N-model to predict competing homogeneous and heterogeneous precipitation in AI-Sc alloys', Acta Materialia, Vol. 51, p. 1453, 2003 https://doi.org/10.1016/S1359-6454(02)00540-2
  7. M. J. Jones and F. J. Humpherys, 'Interaction of recrystallization and precipitation: The effect of Al3Sc on the recryatallization behaviour of deformed aluminum', Acta Materialia, Vol. 51, p. 2149, 2003 https://doi.org/10.1016/S1359-6454(03)00002-8
  8. H. Yamada, 'Effect of precipitation treatment on the recrystallization temperature of AI-Zr and Al-Zr-Misch Metal alloy', J. of Japan Institute of Light Metals, Vol. 31, No.1, p. 3, 1981 https://doi.org/10.2464/jilm.31.3