Abstract
Deformation introduced by punching had a big impact on the response of the 6061 alloy to DSC heating. Clustering at low temperatures was suppressed while the precipitation of the metastable precursors of the equilibrium β-Mg2Si phase were accelerated. The β″ peak in the DSC curve has transformed into a doublet when the samples were punched after the solution treatment. This change in the peak arrangement was accounted for by the operation of two distinct mechanisms for the formation of the β″ phase. While a fraction of the β″ needles has formed through evolution of the GP-1 zones, the rest had to form in the solid solution matrix. Acceleration in the kinetics of β″ precipitation and its transformation to β′ was confirmed by hardness measurements.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. P. CHEN, M. S. VOSSENBERG, F. J. VERMOLEN, J. VAN DE LANGKRUIS and S. VAN DER ZWAAG, Mater. Sci. Eng. A272 (1999) 250.
I. N. A. OGUOCHA and S. YANNACOPOULOS, ibid. A231 (1977) 25.
S. P. CHEN, K. M. MUSSERT and S. VAN DER ZWAAG, J. Mater. Sci. 33 (1998) 4477.
A. K. GUPTA and D. J. LLOYD, Metall. Mater. Trans. 30A (1999) 879.
A. ZAHRA, M. LAFFITTE and P. VIGIER, M. WITTENBERGER, Aluminium 52 (1976) 357.
M. RADOMSKY, O. KABISCH, H. LOFFLER, J. LENDVAI, T. UNGAR, I. KOVACS and G. HNYEK, J. Mater. Sci. 14 (1979) 2906.
G. A. EDWARDS, K. STILLER, G. L. DUNLOP and M. J. COUPER, Acta Mater. 46 (1998) 3893.
W. F. MIAO and D. E. LAUGHLIN, Scr. Mater. 40 (1999) 873.
A. K. GUPTA, D. J. LLOYD and S. A. COURT, Mater. Sci. Engng A301 (2001) 140.
L. ZHUANG, R. DE HAAN, J. BOTTEMA, C. T. W. LAHAYE and P. DE SMET, Mater. Sci. Forum 331–337 (2000) 1309.
S. CERESARA and P. FIORINI, Mater. Sci. Eng. 10 (1972) 205.
A. DESCHAMPS, F. LIVET and Y. BRECHET, Acta Mater. 47 (1999) 281.
K. MATSUDA, S. TADA and S. IKENO, in Proc. of the 4th ICAA, Atlanta, Georgia Institute of Technology, 1994, p.605.
M. J. STARINK, A. J. HOBSON and P. J. GREGSON, Scr. Mater. 34 (1996) 1711.
C. GARCIA CORDOVILLA and E. LOUIS, Scr. Met. 18 (1984) 291.
C. GARCIA CORDOVILLA and E. LOUIS, E. Metall. Trans. A 15A (1984) 389.
Y. BIROL, submitted to J. Therm. Anal. Calorim.
M. J. STARINK, Int. Mater. Rev. 49 (2004) 191.
P. APPENDINO, C. BADINI, F. MARINO and A. TOMASI, Mater. Sci. Eng. A135 (1991) 275.
H-L LEE, W-H LU and S. CHAN, Scr. Metall. Mater. 25 (1991) 2165.
A. BORREGO and G. GONZALES-DONCEL, Mater. Sci. Eng. A245 (1998) 10.
Y. SONG and T. N. BAKER, ibid. A201 (1995) 251–260.
L. SALVO and M. SUERY, ibid. A177 (1994) 19–28.
A. BORREGO, J. IBANEZ, V. LOPEZ, M. LIEBLICH and G. GONZALES-DONCEL, Scr. Mater. 34 (1996) 471.
H. J. RACK, Mater. Sci. Eng. 29 (1977) 179.
I. DUTTA and S. M. ALLEN, J. Mater. Sci. Lett. 10 (1991) 323.
L. A. GIRIFALCO and H. HERMAN, Acta Metall. 13 (1965) 583.
M. MURAYAMA and K. HONO, Acta Mater. 47 (1999) 1537.
P. GOMIERO, A. REEVES, A. PIERRE, F. BLEY, F. LIVET and H. VICHERY: in Proc. of the 4th ICAA, Atlanta, Georgia Institute of Technology, 1994, p.644.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Birol, Y. The effect of sample preparation on the DSC analysis of 6061 alloy. J Mater Sci 40, 6357–6361 (2005). https://doi.org/10.1007/s10853-005-2063-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-005-2063-z