Advances in Superplasticity of Ultrafine-Grained Alloys: Recent Research and Development

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Recent studies have revealed that ultrafine-grained (UFG) metals and alloys produced by severe plastic deformation (SPD) can demonstrate extraordinary superplasticity at low temperatures and/or high strain rates. This work presents new results on superplasticity in several UFG Al and Ti alloys focusing on microstructural evolution and strain hardening, as well as the challenges of their application. Grain refinement in these alloys was accomplished using severe plastic deformation techniques, including new modifications of equal channel angular pressing (ECAP). Unusual behavior of UFG alloys originates both from the formation of ultrafine grain by SPD processing as well as the state of grain boundaries in these materials. It is established that superplastic deformation allowed not only to attain their efficient forming, but also to improve the ultrafine-grained structure and to obtain enhanced mechanical properties in the articles produced. The results demonstrate the possibilities of new applications of superplastic forming using bulk nanostructured materials.

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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:

23-33

Citation:

R. Z. Valiev and I. P. Semenova, "Advances in Superplasticity of Ultrafine-Grained Alloys: Recent Research and Development", Materials Science Forum, Vols. 838-839, pp. 23-33, 2016

Online since:

January 2016

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$38.00

* - Corresponding Author

[1] T.G. Langdon, The mechanical properties of superplastic materials, Metall. Trans. A13 (1982) 689–701.

[2] O.A. Kaibyshev, Superplasticity of Alloys, Intermetallics and Ceramics, Springer-Verlag, Berlin, Germany, (1992).

[3] T.G. Nieh, J. Wadsworth, O.D. Sherby, Superplasticity in Metals and Ceramics, University Press, Cambridge, UK, (1997).

[4] A.K. Mukherjee, in: R.W. Cahn, B. Haasen, E.J. Kramer (Eds. ), Materials Science and Technology, Plastic Deformation and Fracture of Materials, vol. 6, Weinheim, New York, USA, 1993, p.407–460.

[5] R.Z. Valiev, O.A. Kaibyshev, R.I. Kuznetsov, R. Sh. Musalimov, N.K. Tsenev, Low-temperature superplasticity of metals, DAN SSSR 301 (4) (1988) 864–866 (Reports of the Academy of Sciences of the USSR).

[6] R.Z. Valiev, A.V. Korznikov, R.R. Mulyukov, Structure and properties of ultrafine-grained materials produced by severe plastic deformation, Mater. Sci. Eng. A168 (1993) 141–148.

DOI: https://doi.org/10.1016/0921-5093(93)90717-s

[7] S.X. McFadden, R.S. Mishra, R.Z. Valiev, A.P. Zhilyaev, A.K. Mukherjee, Low-temperature superplasticity in nanostructured nickel and metal alloys, Nature 398 (1999) 684–686.

DOI: https://doi.org/10.1038/19486

[8] T.G. Langdon, Twenty-five years of ultrafine-grained materials: Achieving exceptional properties through grain refinement, Acta Mater. 61 (2013) 7035-7059.

DOI: https://doi.org/10.1016/j.actamat.2013.08.018

[9] R.Z. Valiev, A.P. Zhilyaev, T.G. Langdon, Bulk Nanostructured Materials: Fundamentals and Applications, 2014 by John Wiley & Sons, Inc.

[10] R.Z. Valiev, T.G. Langdon, Principles of equal-channel angular pressing as a processing tool for grain refinement, Prog. Mater. Sci. 51 (2006) 881-981.

DOI: https://doi.org/10.1016/j.pmatsci.2006.02.003

[11] R.Z. Valiev, C. Song, S.X. McFadden, A.K. Mukherjee, R.S. Mishra, TEM/HREM observations of nanostructured superplastic Ni3Al, Philos. Mag. A81 (2001) 25–36.

DOI: https://doi.org/10.1080/01418610108216615

[12] R.S. Mishra, R.Z. Valiev, S.X. McFadden, R.K. Islamgaliev, A.K. Mukherjee, High-strain-rate superplasticity from nanocrystalline Al alloy at low temperatures, Philos. Mag. A81 (2001) 37–48.

DOI: https://doi.org/10.1080/01418610108216616

[13] A.V. Sergueeva, V.V. Stolyarov, R.Z. Valiev, A.K. Mukherjee, Superplastic behavior of ultrafine-grained Ti-6Al-4V alloys, Mater. Sci. Eng. A323 (2002) 318–325.

DOI: https://doi.org/10.1016/s0921-5093(01)01384-3

[14] R.Z. Valiev, R.K. Islamgaliev, I.P. Semenova, Superplasticity in nanostructured materials: New challenges, Mater. Sci. Eng. A 463 (2007) 2-7.

[15] I.P. Semenova, G.I. Raab, V.V. Polyakova, N.F. Izmailova, S.P. Pavlinich, R.Z. Valiev, Ultrafine-grained Ti-6Al-4V alloy used for production of complex-shaped articles with enhanced service properties, Rev. Adv. Mater. Sci. 31 (2012) 179-184.

DOI: https://doi.org/10.1002/adem.201500630

[16] R.Z. Valiev, M. Yu. Murashkin, A. Kilmametov, B. Straumal, N.Q. Chinh, T.G. Langdon, Unusual super-ductility at room temperature in an ultrafine-grained aluminum alloy, J. Mater. Sci. 45 (2010) 4718-4724.

DOI: https://doi.org/10.1007/s10853-010-4588-z

[17] X. Sauvage, M. Yu. Murashkin, B.B. Straumal, E.V. Bobruk, R.Z. Valiev, Ultrafine-grained structures resulting from SPD-induced phase transformation in Al-Zn alloys, Adv Eng Mater 17 (2015) published online.

DOI: https://doi.org/10.1002/adem.201500151

[18] R.K. Islamgaliev, N.F. Yunusova, R.Z. Valiev, N.K. Tsenev, V.N. Perevezentsev, T.G. Langdon, Characteristics of superplasticity in an ultrafine-grained aluminum alloy processed by ECA pressing, Scripta Mater. 49 (2003) 467–472.

DOI: https://doi.org/10.1016/s1359-6462(03)00291-4

[19] I.P. Semenova, L.R. Saitova, G.I. Raab, R.Z. Valiev, Superplastic behavior of ultrafine-grained alloy Ti-6Al-4V ELI produced by severe plastic deformation, Physics and High-Pressure Techniques 16 (2006) 84-89.

DOI: https://doi.org/10.1002/mawe.200800308

[20] S.V. Zherebtsov, G.A. Salishchev, R.M. Galeyev O.R. Valiakhmetov, S. Yu. Mironov, S.L. Semiatin, Production of submicrocrystalline structure in large-scale Ti–6Al–4V billet by warm severe deformation processing, Scripta Mater. 51 (2004).

DOI: https://doi.org/10.1016/j.scriptamat.2004.08.018

[21] I.P. Semenova, L.R. Saitova, G.I. Raab, R.Z. Valiev, The effect of equal-channel angular pressing on the structure and mechanical behavior of Ti–6Al–4V alloy, Mater. Sci. Eng. A 387-389 (2004) 805-808.

DOI: https://doi.org/10.1016/j.msea.2004.02.093

[22] I.P. Semenova, R. Z. Valiev, E. B. Yakushina, G. H. Salimgareeva, T. C. Lowe, Strength and fatigue properties enhancement in ultrafine-grained Ti produced by severe plastic deformation, J. Mater. Sci. 43 (2008) 7354-7359.

DOI: https://doi.org/10.1007/s10853-008-2984-4

[23] S. Zherebtsov, G. Salishchev, R. Galeyev, K. Maekawa, Mechanical properties of Ti-6Al-4V titanium alloy with submicrocrystalline structure produced by severe plastic deformation, Mater. Trans. 46(9) (2005) 2020-(2025).

DOI: https://doi.org/10.2320/matertrans.46.2020

[24] L. Saitova, I. Semenova, H.W. Hoeppel, R. Valiev, M. Goeken, Enhanced superplastic deformation behavior of ultrafine-grained Ti-6Al-4V alloy, Mat. -wiss. u. Werkstofftech 39 (4-5) (2008) 367-370.

DOI: https://doi.org/10.1002/mawe.200800308

[25] I.P. Semenova, E.B. Yakushina, V.V. Nurgaleeva, R.Z. Valiev, Nanostructuring of Ti-alloys by SPD processing to achieve superior fatigue properties, Int. J. Mater. Res. 100 (2009) 1691-1696.

DOI: https://doi.org/10.3139/146.110234