Abstract
Al–Cu–Fe quasicrystalline alloys have been deformed by high-temperature creep between 680 and 740 °C. Deformations greater than 30% were achieved without cracking. Analysis of the data in the quasi-steady state regime reveals power law behavior with a stress exponent of 2.5. The activation energy for deformation was determined to be 640 ± 20 kJ/mole in the temperature region investigated. Transmission electron microscopy revealed lamellar defects which appear similar to twins.
Similar content being viewed by others
References
T. Shibuya, T. Hashimoto, and S. Takeuchi, Jpn. J. Appl. Phys. 29, L349 (1990).
D. Bresson and D. Gratias, 4th Int. Conf. Quasicrystals, St. Louis, MO, 1992.
S.S. Kang and J.M. Dubois, Philos. Mag. A 66, 151 (1992).
J. Devaud-Rzepski, M. Comier-Quiquandon, and D. Gratias, 3rd Int. Meeting on Quasicrystals and Incommensurate Structures (World Scientific, Vista Hermosa, Mexico, 1989), p. 498.
M. Wollgarten, Z. Zhang, and K. Urban, Philos. Mag. A 64, 819 (1991).
M. Wollgarten, Z. Zhang, and K. Urban, Philos. Mag. Lett. 65, 1 (1992).
Z. Zhang and Y. Zhuang, Philos. Mag. Lett. 65, 203 (1992).
J-P. Poirier, Creep of Crystals (Cambridge University Press, New York, 1985), p. 76.
R. Wittmann, K. Urban, M. Schandl, and E. Hornbogen, J. Mater. Res. 6, 1165 (1991).
F.W. Gayle, A.J. Shapiro, F.S. Biancaniello, and W.J. Boettinger, Metall. Trans. A (in press).
P. A. Bancel, Quasicrystals: The State of the Art, edited by D. P. DiVincenzo and P. J. Steinhardt (World Scientific, London, 1991), p. 17.
G. E. Dieter, Mechanical Metallurgy (McGraw-Hill, New York, 1986), p. 133.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Shield, J.E., Kramer, M.J. & McCallum, R.W. Plastic deformation in an Al–Cu–Fe icosahedral alloy. Journal of Materials Research 8, 1199–1202 (1993). https://doi.org/10.1557/JMR.1993.1199
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1993.1199