Journal of Materials Science

, Volume 31, Issue 8, pp 2139–2143 | Cite as

Microstructural characterization of a rapidly-solidified Al-12 wt% Si alloy

  • Yücel Birol
Article
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Accepted:

Abstract

Optical, electron metallography and X-ray diffraction techniques were employed to characterize the microstructure of a rapidly solidified Al-12 wt% Si alloy. Ribbons produced with the planar flow casting process at a cooling rate of 106 Ks−1, had a very fine cellular structure of αAl and nanosize Si particles which are distributed inside and at the boundaries of these cells. Thinner sections (t<30 μm) have apparently experienced higher cooling rates and show, in addition to a cellular structure, a distinct zone which is featureless at optical microscope magnifications.

Keywords

Microstructure Cool Rate Thin Section Cooling Rate Cellular Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

  1. 1.
    M. Cohen, B. H. Kear and R. Mehrabian, in “Rapid Solidification Processing: Principles and Technologies”, edited by R. Mehrabian, B. H. Kear and M. Cohen (Claitor's, Baton Rouge, 1980) p. 1.Google Scholar
  2. 2.
    N. J. Grant, in “Rapidly Quenched Metals”, edited by S. Steeb and H. Warlimont (North Holland, Amsterdam, 1985) p. 3.Google Scholar
  3. 3.
    F. H. Froes, Y. W. Kim and F. Hermann, J. Metals 39 (1987) 14.Google Scholar
  4. 4.
    H. Jones, Aluminium 54 (1978) 274.Google Scholar
  5. 5.
    E. J. Lavernia, J. D. Ayers and T. S. Srivatsan, Int. Mater. Rev. 37 (1992) 1.Google Scholar
  6. 6.
    W. G. J. Bunk, Mater. Sci. Engng 134A (1991) 1087.Google Scholar
  7. 7.
    S. K. Das and L. A. Davis, ibid. 98 (1988) 1.Google Scholar
  8. 8.
    S. K. Bose and R. Kumar, J. Mater. Sci. 8 (1973) 1795.Google Scholar
  9. 9.
    A. Bendijk, R. Delhez, L. Katgerman, Th. H. De Keijser, E. J. Mittemeijer and N. M. Van Der Pers, ibid. 15 (1980) 2803.Google Scholar
  10. 10.
    R. Delhez, Th. H. De Keijser, E. J. Mittemeijer, P. Van Mourik, N. M. Van Der Pers, L. Katgerman and W. E. Zalm, ibid. 17 (1982) 2887.Google Scholar
  11. 11.
    J. A. Van Der Hoeven, P. Van Mourik and E. J. Mittemeijer, J. Mater. Sci. Lett. 2 (1983) 158.Google Scholar
  12. 12.
    M. Van Rooyen, N. M. Van Der Pers, L. Katgerman, Th. H. De Keijse and E. J. Mittemeijer, in “Rapidly Quenched Metals”, edited by S. Steeb and H. Warlimont (North Holland, Amsterdam, 1985) p. 823.Google Scholar
  13. 13.
    S. Paidassi and J. Chevrier, ibid.“ p 957.Google Scholar
  14. 14.
    C. Antonione, L. Battezzati and F. Marino, J. Mater. Sci. Lett. 5 (1986) 586.Google Scholar
  15. 15.
    N. Apaydin and R. W. Smith, Mater. Sci. Engng 98 (1988) 149.Google Scholar
  16. 16.
    P. Todeschini, G. Champier and F. H. Samuel, J. Mater. Sci. 27 (1992) 3539.Google Scholar
  17. 17.
    J. Yeh and C. Tsau, Met. Trans. 23A (1992) 2313.Google Scholar
  18. 18.
    A. M. Bastawros and M. Z. Said, J. Mater. Sci. 29 (1993) 1143.Google Scholar
  19. 19.
    M. Itagaki, B. C. Giessen and N. J. Grant, Trans. ASM 61 (1968) 330.Google Scholar
  20. 20.
    P. H. Shingu, K. B. Kobayashi, K. Shimomura and R. J. Ozaki, J. Jpn. Inst. Met. 37 (1993) 433.Google Scholar
  21. 21.
    H. Matyja, B. C. Giessen and N. J. Grant, J. Inst. Metals 96 (1968) 30.Google Scholar
  22. 22.
    V. K. Vasudevan, H. L. Fraser, Mater. Sci. Engng 98 (1988) 213.Google Scholar
  23. 23.
    H. Jones, ibid. 5 (1969–1970) 1.Google Scholar
  24. 24.
    L. A. Bendersky, M. J. Kaufman, W. B. Boettinger and F. S. Biancaniello, ibid. 98 (1988) 213.Google Scholar
  25. 25.
    G. Vigier, U. Ortiz-Mendez, P. Merle, G. Thollet and F. Fouquet, ibid. 98 (1988) 191.Google Scholar

Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • Yücel Birol
    • 1
  1. 1.Materials Research DivisionMarmara Research CenterKocaeliTurkey

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