Superplasticity of an AA2519 Aluminum Alloy

Abstract:

Article Preview

A commercial AA2519 alloy with a chemical composition of Al-5.64Cu-0.33Mn-0.23Mg-0.15Zr (in wt. %) was subjected to two-step thermomechanical processing (TMP) providing the formation of fully recrystallized structure with an average grain size of ~7 mm in 3 mm thin sheets. Superplastic tensile tests were performed in the temperature interval 450-535°C and initial strain rates ranging from ~2.8 x 10-4 to ~6.0 x 10-1 s-1. The highest elongation-to-failure of ~750% appears at a temperature of ~525°C and an initial strain rate of ~1.4 × 10-4 s-1 with the corresponding strain rate sensitivity coefficient of ~0.46.

Info:

Periodical:

Materials Science Forum (Volumes 838-839)

Edited by:

Eiichi Sato, Goroh Itoh, Yoshimasa Takayama, Koichi Kitazono, Koji Morita, Takaomi Itoi and Junya Kobayashi

Pages:

278-284

Citation:

I. Zuiko et al., "Superplasticity of an AA2519 Aluminum Alloy", Materials Science Forum, Vols. 838-839, pp. 278-284, 2016

Online since:

January 2016

Export:

Price:

$41.00

* - Corresponding Author

[1] O.A. Kaibyshev, Superplasticity of Alloy, Intermetallics and Ceramics, Springer-Verlag, Berlin, (1992).

[2] J. Pilling, N. Ridley, Superplasticity in crystalline solids, The Institute of Metals, London, (1989).

[3] F.C. Campbell, Manufacturing technology for aerospace structural materials. Elsevier, Great Britain, (2006).

[4] T. Dursun, C. Soutis, Recent developments in advanced aircraft aluminum alloys, Mater. Des. 56 (2014) 862-871.

DOI: https://doi.org/10.1016/j.matdes.2013.12.002

[5] I.J. Polmear, Light Alloys: From Traditional Alloys to Nanocrystals, 4th ed., Butterworth-Heinemann/Elsevier, UK, (2006).

[6] R. Kaibyshev, I. Kazakulov, D. Gromov, F. Musin, D.R. Lesuer, T.G. Nieh. Superplasticity in a 2219 aluminum alloy, Scr. Mater. 44 (2001) 2411-2417.

DOI: https://doi.org/10.1016/s1359-6462(01)00930-7

[7] F.C. Liu, B.L. Xiao, K. Wang, Z.Y. Ma. Investigation of superplasticity in friction stir processed 2219Al alloy, Mater. Sci. Eng. A. 527 (2010) 4191-4196.

DOI: https://doi.org/10.1016/j.msea.2010.03.065

[8] R. Kaibyshev, F. Musin, D. Gromov, T. G. Nieh and D. R. Lesuer. Grain refinement and superplastic behaviour of a modified 6061 aluminium alloy, Mater. Sci. Tech. 19 (2003) 483-490.

DOI: https://doi.org/10.1179/026708303225002019

[9] R. Kaibyshev, T. Sakai, I. Nikulin, F. Musin, A. Goloborodko. Superplasticity in a 7055 aluminum alloy subjected to intense plastic deformation, Mater. Sci. Tech. 19 (2003) 1491-1497.

DOI: https://doi.org/10.1179/026708303225008167