The methods of light and scanning electron microscopy and x-ray phase and thermal analysis are used to study the effect of the special features of the production process on the characteristics of the grain structure and super-elasticity of sheets from alloys based on the Al – Cu – Mg – Fe – Ni system. It is shown that the use of annealing in saltpeter before the superplastic deformation improves the superplasticity parameters of the alloys.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
I. I. Novikov and V. K. Portnoi, Superplasticity of Alloys with Ultrafine Grains [in Russian], Metallurgiya, Moscow (1981), 168 p.
T. G. Nieh, J. Wadsworth, and O. D. Sherby, Superplasticity in Metals and Ceramics, Cambridge University Press, New York (2005), 287 p.
N. Peyton and K. Hamilton (eds.), Superplastic Forming of Structural Alloys [Russian translation], Metallurgiya, Moscow (1985), 312 p.
S. G. Alieva, M. B. Altman, M. B. Ambartsumyan, et al., Commercial Aluminum Alloys [in Russian], Metallurgiya, Moscow (1984), 628 p.
International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys, The Aluminum Association, Inc. (2009).
GOST 4784–97, Aluminum and Deformable Aluminum Alloys, Grades, Rev. 18.01.2010 with Alter. 1 [in Russian], Izd. Standartov, Moscow (2000), 23 p.
O. A. Kaibyshev, Superplasticity of Commercial Alloys [in Russian], Metallurgiya, Moscow (1984), 264 p.
C. Testani, F. M. Ielpo, and E. Alunni, “AA2618 and AA7075 alloys superplastic transition in isothermal hot-deformation tests,” Mater. Design, 21, 305–310 (2000).
W. Feng, X. Baiqing, Z. Yongan, et al., “Microstructural characterization of an Al – Cu – Mg alloy containing Fe and Ni,” J. Alloys Comp., 487, 445–449 (2009).
K. Yu, W. Li, S. Li, and J. Zha, “Mechanical properties and microstructure of aluminum alloy 2618 with Al3 (Sc, Zr) phases,” Mater. Sci. Eng. A, 368, 33–93 (2004).
M. Warmuzekb, G. Mrówka, and J. Sieniawski, “Influence of the heat treatment on the precipitation of the intermetallic phases in commercial AlMn1FeSi alloy,” Mater. Proc. Technol., 157–158, 624–632 (2004).
O. V. Solov’eva, Development of Process Chart for Making Superplastic Sheets from Alloy D19 and Study of Structural Changes in the Process of SPD, Author’s Abstract of Candidate’s Thesis [in Russian], MISiS, Moscow (1995), 123 p.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 19 – 23, July, 2012.
Rights and permissions
About this article
Cite this article
Kotov, A.D., Mikhailovskaya, A.V., Portnoi, V.K. et al. Formation of micrograin structure and superplastic state in alloys of the Al–Cu–Mg–Fe–Ni system. Met Sci Heat Treat 54, 340–344 (2012). https://doi.org/10.1007/s11041-012-9509-0
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11041-012-9509-0