Abstract
Versions of rheological models describing the phenomenological behavior of materials in the superplasticity state with allowance for the elastic component and without allowance for it have been presented. Consideration has been given to the basic indications of manifestation of superplastic properties from the viewpoint of the influence of the dimensions of the structural components on them. Analytical dependences of the governing relations of the mechanics of a deformable rigid body, which allow for the influence of the applied stresses, the structure, and the temperature on the rate of superplastic deformation (SPD) and enable one to calculate the shear viscosity and the rheological dependences of SPD for deformable aluminum alloys AMg4 and AMg6 with a prepared ultrafine‐grained structure, have been given.
Similar content being viewed by others
REFERENCES
O. M. Smirnov, Plastic Working of Metals in the Superplasticity State [in Russian], Moscow (1979).
A. R. Tayupov, M. A. Tsepin, and O. V. Egorov, The Technique of Modeling the Shaping of Materials with an Ultrafine Granular Structure in Superplastic Molding [in Russian], Moscow (1991).
M. A. Tsepin, A. R. Tayupov, and S. M. Polyakov, in: Collection of Papers presented at IInd Soviet–Chinese Seminar on the Theory of the Technology of Press Forging [in Russian], (1990), pp. 79–83.
E. Chumachenko, M. Tsepin, A. Tchekine, and O. Panina, J. Mater. Sci. Technol., 17, No. 1, 111–112 (2001).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tsepin, M.A., Syn, J., Lisunets, N.L. et al. Rheological Model of Flow of a Material with a Variable Structure under Superplastic Deformation. Journal of Engineering Physics and Thermophysics 76, 627–631 (2003). https://doi.org/10.1023/A:1024733317171
Issue Date:
DOI: https://doi.org/10.1023/A:1024733317171