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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 385Superplasticity of Aerospace 7075 (Al-Zn-Mg-Cu)...

Superplasticity of Aerospace 7075 (Al-Zn-Mg-Cu) Aluminium Alloy Obtained by Severe Plastic Deformation

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Abstract:

The 7075 (Al-Zn-Mg-Cu) aluminium alloy is the reference alloy for aerospace applications due to its specific mechanical properties at room temperature, showing excellent tensile strength and sufficient ductility. Formability at high temperature can be improved by obtaining superplasticity as a result of fine, equiaxed and highly misoriented grains prone to deform by grain boundary sliding (GBS). Different severe plastic deformation (SPD) processing routes such as ECAP, ARB, HPT and FSP have been considered and their effect on mechanical properties, especially at intermediate to high temperatures, are studied. Refined grains as fine as 100 nm and average misorientations as high as 39o allow attainment of high strain rate superplasticity (HSRSP) at lower than usual temperatures (250-300oC). It is shown that increasing misorientations are obtained with increasing applied strain, and increasing grain refinement is obtained with increasing processing stress. Thus, increasing superplastic strains at higher strain rates, lower stresses and lower temperatures are obtained with increasing processing strain and, specially, processing stress.

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Periodical:

Defect and Diffusion Forum (Volume 385)

Pages:

39-44

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.385.39

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Online since:

July 2018

Authors:

Fernando Carreno*, Oscar Ruano

Keywords:

7075 Aluminium Alloy, Grain Refinement, Severe Plastic Deformation, Superplasticity

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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[1] O.A. Ruano, O.D. Sherby, Rev. Phys. Appl. 23 (1988) 625-637.

[2] R.Z. Valiev, R. K. Islamgaliev, I.V. Alexandrov, Prog. Mater. Sci. 45(2000) 103-189.

[3] A.P Zhilyaev, M.D. Baró, T.G. Langdon, T.R. McNelley, Rev. Adv. Mater. Sci. 7 (2004) 41-49.

[4] J.M. García-Infanta, A.P. Zhilyaev, A. Sharafutdinov, O.A. Ruano, F. Carreño, J. Alloys Comp. 473 (2009) 163–166.

[5] P. Hidalgo, C.M. Cepeda-Jiménez, O.A. Ruano, and F. Carreño, Metal. Mater. Trans. A 41A (2010) 758-767.

[6] C.M. Cepeda-Jiménez, J.M. García-Infanta, O.A. Ruano, F. Carreño, J. Alloys. Comp. 509 (2011) 8649– 8656.

DOI: 10.1016/j.jallcom.2011.06.070

[7] C.M. Cepeda-Jiménez, J.M. García-Infanta, O.A. Ruano, F. Carreño, J. Alloys Comp. 509 (2011) 9589– 9597.

DOI: 10.1016/j.jallcom.2011.07.076

[8] P. Hidalgo-Manrique, C.M. Cepeda-Jiménez, O.A. Ruano, F. Carreño, Mater. Sci. Eng. A 556 (2012) 287–294.

[9] A. Orozco-Caballero, C.M. Cepeda-Jiménez, P. Hidalgo-Manrique, P. Rey, D. Gesto, D.Verdera, O.A. Ruano, F. Carreño, Mater. Chem. Phys. 142 (2013) 182-185.

DOI: 10.1016/j.matchemphys.2013.06.055

[10] R.Z. Valiev, N.A. Krasilnikov and N.K. Tsenev, Mater. Sci. Eng. A, 137 (1991) 35-40.

[11] V.M. Segal, Mater. Sci. Eng. A 197 (1995) 157-164.

[12] Y. Saito, N. Tsuji, H. Utsunomiya, T. Sakai, R.G. Hong, Scripta Mater. 9 (1998) 1221-1227.

[13] N.A. Smirnova, V.I. Levit, V.I. Pilyugin, R.I. Kuznetsov, L.S. Davydova, V.A. Sazonova, Fiz. Met. Metalloved. 61 (1986) 1170-1177.

[14] A.P. Zhilyaev and T.G. Langdon, Prog. Mater. Sci. 53 (2008) 893-979.

[15] R.S. Mishra, M.W. Mahoney, S.X. McFadden, N.A. Mara, A.K. Mukherjee, Scripta Mater. 42 (2000) 163-168.

[16] A. Orozco-Caballero, M. Álvarez-Leal, P. Hidalgo-Manrique, C. Cepeda-Jiménez M., O.A. Ruano, F. Carreño, Mater. Sci. Eng. A 680 (2017) 329–337.

DOI: 10.1016/j.msea.2016.10.113

[17] A. Orozco-Caballero, M. Álvarez-Leal, D. Verdera, P. Rey, O.A. Ruano, F. Carreño, Mater. Des. 125 (2017) 116–125.

DOI: 10.1016/j.matdes.2017.03.081

[18] A. Orozco-Caballero, O.A. Ruano, F. Carreño, Metall. Mater. Trans. A 48 (2017) 3980–3984.

[19] A. Orozco-Caballero, O.A. Ruano, E.F. Rauch, F. Carreño, Mater. Des. 137 (2018) 128–139.

[20] F.C. Liu, Z.Y. Ma, Mater. Sci. Eng. A 530 (2011) 548-558.

[21] C.M. Cepeda-Jiménez, J.M. García-Infanta, E.F. Rauch, J-J. Blandin, O.A. Ruano, and F. Carreño, Metall. Mater. Trans. A 43 (2012) 4224-4236.

DOI: 10.1007/s11661-012-1206-5

[22] P. Asadi, R.A. Mahdavinejad, S. Tutunchilar, Mater. Sci. Eng. A 528 (2011) 6469- 6477.

[23] E. F. Rauch, M. Veron, Materialwiss. Werkstofftech. 36 (2005) 552-556.

[24] E. F. Rauch, L. Dupuy, Arch. Metall. Mater. 50 (2005) 87-99.

[25] J.K. Mackenzie, Biometrika 45 (1958) 229–240.

[26] F. Wetscher, A. Vorhauer, R. Pippan, Mater. Sci Eng A 410–411 (2005) 213-216.

[27] A. Bachmaier, M. Hafok, R. Pippan, Mater. Trans. 51 (2010) 8-13.