Hot Deformation Behavior of Al-Cu-Li-Mg-Zn-Zr-Sc Alloy in As-Cast and Hot-Rolled Condition

Abstract:

The results of physical simulation of hot compression of semi-finished products, selected from a cast ingot and hot-rolled plate from aluminum-lithium alloy V-1461, in the temperature range of 400-460°C and strain rates of 1-60 s^-1 are presented. It is established that at a constant strain rate the flow stresses decrease with increasing test temperature, an increase in the strain rate leads to an increase in flow stresses at a constant temperature. The parameters of the hot deformation rheological model, including the Zener-Hollomon parameter and the hyperbolic sine law, are determined. It is established that the parameters of the rheological model for the cast and hot-rolled state differ insignificantly.

• Periodical: Materials Science Forum (Volume 920)
• Pages: 244-249
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.920.244
• Online since: April 2018
• Authors: Yaroslav A. Erisov*, Sergey Surudin, Fedor V. Grechnikov
• Keywords: Aluminum-Lithium Alloy, Cast, Hot Deformation, Hot Rolled, Rheological Model, V-1461

References

[1] E.N. Kablov, Materials and chemical technologies for aircraft engineering, Herald of the Russian Academy of Sciences. 82(3) (2012) 158-167.

DOI: 10.1134/s1019331612030069

[2] L.B. Khokhlatova, N.I. Kolobnev, M.S. Oglodkov, E.D. Mikhaylov, Aluminum-lithium alloys for aircraft building, Metallurgist. 56(5-6) (2012) 336-341.

DOI: 10.1007/s11015-012-9580-1

[3] R.J. Rioja, J. Liu, The Evolution of Al-Li Base Products for Aerospace and Space Applications, Metallurgical and Materials Transactions A. 43A (2012) 3325-3337.

DOI: 10.1007/s11661-012-1155-z

[4] V.I. Elagin, V.V. Zakharov Modern Al-Li alloys and prospects of their development, Metal Science and Heat Treatment. 55(3-4) (2013) 184-190.

DOI: 10.1007/s11041-013-9603-y

[5] Y.A. Erisov, F.V. Grechnikov, M.S. Oglodkov, The influence of fabrication modes of sheets of V-1461 alloy on the structure crystallography and anisotropy of properties, Russian Journal of Non-Ferrous Metals. 57(1) (2016) 19-24.

DOI: 10.3103/s106782121601003x

[6] E.A. Lukina, A.A. Alekseev, L.B. Khokhlatova, M.S. Oglodkov, Regular features of formation of main hardening phases in alloys 1424 of the Al-Mg-Li-Zn system and V-1461 of the Al-Cu-Li-Zn-Mg system, Metal Science and Heat Treatment. 55(9-10) (2014).

DOI: 10.1007/s11041-014-9655-7

[7] G. Zhao, L. Yang, X. Duan, X. Ren, L. Zhu, T.Yang, X. Guo, S. Hao, Microstructure evolution and mechanical properties of AZ80 alloy reheated from as-cast and deformed states, Transactions of Nonferrous Metals Society of China. 22(SUPPL.2) (2012).

DOI: 10.1016/s1003-6326(12)61745-2

[8] H. Pal, S.K. Pradhan, M. De, Characterization of deformed and as-cast microstructure of copper-aluminium-iron alloys (A-phase), Japanese Journal of Applied Physics. 32(3 R) (1993) 1164-1170.

DOI: 10.1143/jjap.32.1164

[9] N.I. Kolobnev, O.A. Setyukov, L.B. Khokhlatov, M.S. Oglodkov Influence of Crystallographic Orientations on the Properties of Plates of Al-Li Alloys V-1461 and 1424, Technology of Light Alloys. 1 (2010) 100-106. (in Russ.).

[10] N.I. Kolobnev, V.V. Antipov, V.V. Makhsidov, D.K. Ryabov, L.B. Khokhlatova, V.I. Popov, M.S. Oglodkov, Russian Federation Patent 2,486,274 (2011).

[11] V.V. Antipov, N.I. Kolobnev, L.B. Khokhlatova, Advancement of Al-Li alloys and of multistage modes of their heat treatment, Metal Science and Heat Treatment. 55(9-10) (2014) 459-465.

DOI: 10.1007/s11041-014-9654-8

[12] N.I. Kolobnev, L.B. Khokhlatova, M.S. Oglodkov, Yu.Yu. Klochkova, High-strength Al-Cu-Li-alloys with increased fracture toughness intended for aircraft structures, Tsvetnye Metally. 9 (2013) 66-71.

[13] Yu.M. Tarasov, R.O. Vakhromov, Application of aluminium alloys, developed under the guidance of academician I.N. Fridlyander, in Russian aviation engineering, Tsvetnye Metally. 9 (2013) 37-39.

[14] L.B. Khokhlatova, N.I. Kolobnev, M.S. Oglodkov, E.A. Lukina, S.V. Sbitneva, Change in phase composition in relation to aging regimes and alloy V-1461 semifinished product structure, Metal Science and Heat Treatment. 54(5-6) (2012) 285-289.

DOI: 10.1007/s11041-012-9498-z

[15] T. Altan, Metal Forming Handbook, Springer-Verlag, Berlin, (1998).

[16] K. Lange, Handbook of Metal Forming, McGraw-Hill, New York, (1985).

[17] H. Han, The validity of mathematical models evaluated by two-specimen method under the unknown coefficient of friction and flow stress, Journal of Materials Processing Technology. 122 (2002) 386-396.

DOI: 10.1016/s0924-0136(02)00059-6

[18] T.B. Milevskaya, S.V. Ruschits, E.A. Tkachenko, S.M. Antonov, Deformation Behavior of High-Strength Aluminum Alloys under Conditions of Hot Deformation, Aviation Materials and Technologies. 2(35) (2015) 3-9. (in Russ.).

DOI: 10.18577/2071-9140-2015-0-2-3-9

[19] Y.-L. Chen et al. Hot deformation behavior of Al-Cu-Li-Mg-Zr alloy containing Zn and Mn, Transactions of Nonferrous Metals Society of China. 17 (2007) 271-275.

DOI: 10.1016/s1003-6326(11)60733-4

[20] H. Mirzadeh, J.M. Cabrera, A. Najafizadeh, Constitutive relationships for hot deformation of austenite, Acta Materialia. 59(16) (2011) 6441-6448.

DOI: 10.1016/j.actamat.2011.07.008

[21] H.J. McQueen, N.D. Ryan, Constitutive analysis in hot working, Materials Science and Engineering A. 322(1-2) (2002) 43-63.

DOI: 10.1016/s0921-5093(01)01117-0