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Metallurgist
Published in: Metallurgist 1-2/2015

01-05-2015

Mechanical Tests and Construction of Analytical Models of the Behavior of Materials Under Superplastic Conditions. Part II*

Authors: E. N. Chumachenko, V. K. Portnoi, I. V. Logashina

Published in: Metallurgist | Issue 1-2/2015

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Abstract

Different test methods are described to determine the mechanical properties of materials in the superplastic state. The flow stress depends on strain and strain rate, the structural parameter of the materials, and temperature. The rheology and mechanics of superplastic deformation are discussed. The methods have been checked for reliability and produced good results in testing titanium alloys and constructing mathematical models as part of an order submitted by the company EADS (Airbus). The information given on the test methods and the subsequent approximation of materials’ mechanical properties is of considerable interest for making reliable predictions of the deformation of materials during shaping operations.
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Literature
1.
Yu. S. Zav’yalov, B. I. Kvasov, and V. L. Miroshnichenko, Spline-Function Methods, Nauka, Moscow (1980).
2.
I. I. Novikov and V. K. Portnoy, Superplastizitat von Legierungen, Springer-Verlag, Berlin (1984).
3.
E. N. Chumachenko, O. N. Smirnov, and M. A. Tsepin, Superplasticity: Materials, Theory, Technology, LIBROKOM, Moscow (2009).
4.
A. K. Gordienko (ed.), Ultrafine Grains in Metals [Russian translation], Metallurgiya, Moscow (1973).
5.
T. G. Nieh, J. Wadsworh, and O. D. Sherby, Superplasticity in Metals and Ceramics, Cambridge Univ. Press (1997).
6.
E. N. Chumachenko, “Development of computer simulation of industrial superplastic sheet forming,” Mater. Sci. Eng. A, 499, No. 1/2, 342–346 (2009).CrossRef
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O. M. Smirnov, “Aspects of the superplastic deformation of iron-carbon alloys,” Izv. Vyssh. Uchebn. Zaved. Chern. Met., No. 5, 36–41 (2003).
8.
A. V. Chekin, O. M. Smirnov, A. N. Ershov, and M. A. Tsepin, “Rheological behavior of superplastic nanocrystalline and amorphous materials,” Izv. Vyssh. Uchebn. Zaved. Tsvetn. Met., No. 4, 18–26 (2001).
9.
E. N. Chumachenko, “Modeling the deformation of shells of titanium alloys under low-temperature superplastic conditions,” Izv. RAN. MTT, No. 6, 151–166 (2004).
Metadata
Title
Mechanical Tests and Construction of Analytical Models of the Behavior of Materials Under Superplastic Conditions. Part II*
Authors
E. N. Chumachenko
V. K. Portnoi
I. V. Logashina
Publication date
01-05-2015
Publisher
Springer US
Published in
Metallurgist / Issue 1-2/2015
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-015-0062-0

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