Journal of Thermal Analysis and Calorimetry

, Volume 83, Issue 1, pp 219–222 | Cite as

DSC Analysis of the precipitation reactions in the alloy AA6082

Effect of sample preparation
  • Birol Y 


The deformation introduced during the sample preparation had a high impact on the response of the alloy AA6082 to heating in the DSC cell. The DSC curve was strikingly different when DSC samples of this alloy were punched after the solution treatment. Dislocations introduced by punching have annihilated the quenched-in vacancies and have suppressed clustering initially. Dislocations have also provided heterogeneous nucleation sites for the GP-1 zones that readily grew to become stable nuclei for the β" phase owing to the enhanced atomic transport. β" as well as the β' precipitation kinetics were thus accelerated leading to a substantial change in the DSC peak arrangement. Deformation introduced during sample preparation by gentle grinding alone, on the other hand, did not suffice to alter the precipitation sequence, producing a DSC curve very similar to that obtained with samples punched before the solution treatment.


Al-Mg-Si characterisation methods differential scanning calorimetry metals and alloys 


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  1. 1.
    Wunderlich, B 2004J. Therm. Anal. Cal.787CrossRefGoogle Scholar
  2. 2.
    Chen, SP, Vossenberg, MS, Vermolen, FJ, Van de Langkruis, J, Van Der Zwaag, S 1999Mater. Sci. Eng.A272250Google Scholar
  3. 3.
    Papazzian, JM 1988Metall. Trans.19A2945Google Scholar
  4. 4.
    Chen, SP, Mussert, KM, Van Der Zwaag,  S 1998J. Mater. Sci.334477Google Scholar
  5. 5.
    Gupta, AK, Lloyd, DJ 1999Metall. Mater. Trans.30A879Google Scholar
  6. 6.
    Dutta, I, Allen, SM 1991J. Mater. Sci. Lett.10323CrossRefGoogle Scholar
  7. 7.
    Edwards, GA, Stiller, K, Dunlop, GL, Couper, MJ 1998Acta Mater., 463893CrossRefGoogle Scholar
  8. 8.
    Miao, WF, Laughlin, DE 1999Scr. Mater.40873CrossRefGoogle Scholar
  9. 9.
    Gupta, AK, Lloyd, DJ, Court, SA 2001Mater. Sci. Eng.A301140Google Scholar
  10. 10.
    Zhuang, L, De Haan, R, Bottema, J, Lahaye, CTW, De Smet, P 2000Mater. Sci. Forum3311309Google Scholar
  11. 11.
    Barrego, A, Gonzales-Doncel, G 1998Mater. Sci. Eng.A24510Google Scholar
  12. 12.
    Yao, JY, Graham, DA , Rinderer, B, Couper, MJ 2001Micron32865CrossRefGoogle Scholar
  13. 13.
    Marioara, CD, Andersen, SJ, Jansen, J, Zandbergen, HW 2003Acta Mater.51789CrossRefGoogle Scholar
  14. 14.
    Fukui, K, Takeda,  M, Endo, T 2005Mater Lett.591444CrossRefGoogle Scholar
  15. 15.
    Matsuda, K, Sakaguchi, Y, Miyata, Y, Uteni, Y, Sato, T, Kamio, A, Ikeno, S 2000J. Mater. Sci.35179CrossRefGoogle Scholar
  16. 16.
    Ceresara, S, Fiorini, P 1972Mater. Sci. Eng.10205Google Scholar
  17. 17.
    Gomiero, P, Reeves, A, Pierre, A, Bley, F, Livet,  F, Vichery, H 1994 in Proc. of the 4th ICAAGeorgia Institute of TechnologyAtlanta644Google Scholar
  18. 18.
    Deschamps, A, Livet, F, Brechet, Y 1999Acta Mater.47281Google Scholar
  19. 19.
    Matsuda, K, Tada, S, Ikeno, S 1994in Proc. of the 4th ICAAGeorgia Institute of TechnologyAtlanta605Google Scholar
  20. 20.
    Lee, HL, Lu, WH, Chan, S 1991Scripta Mater.252165Google Scholar
  21. 21.
    Garcia Cordovilla, C, Louis, E 1984Scripta Mater.18291Google Scholar
  22. 22.
    Garcia Cordovilla, C, Louis, E 1984Metall. Trans. A,15A389Google Scholar
  23. 23.
    Starink, MJ, Hobson, AJ, Gregson, PJ 1996ScriptaMater.341711Google Scholar
  24. 24.
    Y. Birol, J. Mater. Sci., accepted.Google Scholar
  25. 25.
    Starink, MJ 2004Int. Mater. Rev.49191CrossRefGoogle Scholar
  26. 26.
    Gupta, AK, Lloyd, DJ, Court, SA 2001Mater. Sci. Eng.A31611Google Scholar
  27. 27.
    Girifalco, LA, Herman, H 1965ActaMetall.13583Google Scholar
  28. 28.
    Suresh, S, Christman, T, Sugimura, Y 1989Scripta Mater.231599Google Scholar
  29. 29.
    Dutta, I, Bourell, DL 1989Mater. Sci. Eng.A11267Google Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Materials InstituteMarmara Research CenterTubitak, KocaeliTurkey

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