Effect of adding chromium on internal friction and superplasticity of alloys of the Al – Mg system
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Differences are revealed in the microstructure, superplasticity, and internal friction properties of superplastic specimens of alloys Al – 4.9% Mg – 0.6% Mn and Al – 4.9% Mg – 0.6% Mn – 0.25% Cr. The dynamics of structural changes during alloy superplastic deformation are studied. Effects connected with recrystallization and grain-boundary relaxation on internal friction temperature dependences are identified.
Key words
aluminum alloys superplasticity internal frictionReferences
- 1.B. J. Dunwoody, “The production of automotive body panels in 5083 SPF aluminium alloy,” Mater. Sci. Forum, Tech. Publications, Switzerland, 357 – 359, 59 – 64 (2001).Google Scholar
- 2.S. N. Patankar and T. M. Jen, “Strain rate insensitive plasticity in aluminum alloy 5083 ,” Scr. Mater., 38(8), 1255 – 12611 (1998).CrossRefGoogle Scholar
- 3.V. K. Portnoi, D. S. Rylov, V. S. Levchenko, and A. A. Alalaykin, “Superplastic magnalium for increased rates of superplastic forming,” Tsvetn. Met., No. 1, 84 – 87 (2005).Google Scholar
- 4.T. Nieh, J. Wadsworth, and O. Sherby, Superplasticity in Metals and Ceramics, University Press, Cambridge (1997).CrossRefGoogle Scholar
- 5.A. S. Nowick and B. S. Berry, Anelastic Relaxation in Crystalline Solids, Academic Press, New York (1972).Google Scholar
- 6.T. S. Kê, “Development of the torsion pendulum and early research on grain boundary relaxation and the cold-work internal friction peak,” JALCOM, 211 – 212, 7 – 15 (1994).Google Scholar
- 7.M. S. Blanter, I. S. Golovin, H. Neuhäuser, and H.-R. Sinning, Internal Friction in Metallic Materials. A Handbook, Springer Verlag (2007).Google Scholar
- 8.I. S. Golovin, A. V. Mikhailovskaya, A. A. Ryazantseva, et al., “Study of recrystallization in alloy Al – 0.3Mg by internal friction method,” Fiz. Met. Metalloved., 112(6), 656 – 667 (2011).Google Scholar
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