Abstract
Scandium plus zirconium additions to aluminum offer potent alloy strengthening opportunities with enhanced kinetic stability at elevated temperatures, attributable to a favorable sequence of trialuminide precipitation events which occur. This work examines the additional variable of prior cold work on precipitate aging kinetics, and on the recrystallization of the underlying aluminum matrix. Al-0.07Sc-0.08Zr (at%) alloys have been cast, swaged, and isochronally aged over a range of temperatures to quantify hardening response and degree of recrystallization. Cold-worked specimens are compared to as-cast variants; the recrystallization response of the alloy is compared to pure aluminum. These data demonstrate the expanded and optimized properly space attainable via microstructural response to thermomechanical processing.
Keywords
- aluminum
- scandium
- cold work
- recrystallization
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References
J. Roy set and N. Ryum, “Scandium in aluminum alloys,” International Materials Reviews, 50 (1) (2005), 19–44
K. E. Knipling, et al., “Precipitation evolution in Al-0.1Sc, Al-O.lZr and Al-0.1Sc-0.1Zr (at%) alloys during isochronal aging,” Acta Materialia, 58 (2010), 5184–5195
C. B. Fuller, D. N. Seidman and D. C. Dunand, “Mechanical properties of Al(Sc,Zr) alloys at ambient and elevated termperatures,” Acta Materialia, 51 (2003), 4803–4814
N. Blake and M. A. Hopkins, “Consitution and age hardening of Al-Sc alloys,” Journal of Materials Science, 20 (1985), 2861–2867
J. W. Martin and R. D. Doherty, Stability of Microstructure in Metallic Systems (Cambridge:Cambridge University Press, 1976)
N. D. Johnson, “Processing and Mechanical Properties of Cast Aluminum Containing Scandium, Zirconium, and Ytterbium,” Materials Science and Engineering, Masters (2011), 62
A. I. H. Committee, ASM Handbook, Volume 2 - Properties and Selection: Non-Ferrous Alloys and special-Purpose Materials (Metals Park, Ohio:ASM, 2004), 153
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© 2016 The Minerals, Metals & Materials Society
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McNamara, C.T., Kampe, S.L., Sanders, P.G., Swenson, D.J. (2016). The Effect of Cold Work on the Precipitation and Recrystallization Kinetics in Al-Sc-Zr Alloys. In: Sadler, B.A. (eds) Light Metals 2013. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-65136-1_66
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DOI: https://doi.org/10.1007/978-3-319-65136-1_66
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-65135-4
Online ISBN: 978-3-319-65136-1
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