Abstract
The fragmentation of metals during megaplastic (severe) deformation is described in terms of a two-defect model. The process kinetics has been studied qualitatively. A general expression for the Lyapunov indices, which determine the stability of limiting (stationary) structures, is derived. Critical conditions for controlling parameters are found, and the diagrams that determine the stability of stationary states are constructed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. M. Glezer, “On the nature of superhigh plastic (megaplastic) deformation,” Izv. Ross. Akad. Nauk, Ser. Fiz. 71 (12), 1764–1773 (2007).
A. M. Glezer and L. S. Metlov, “Physics of megaplastic (severe) deformation in solids,” Phys. Solid State 52 (6), 1162–1169 (2010).
L. S. Metlov, A. M. Glezer, and V. N. Varyukhin, “Cyclic character of the evolution of the defect structure and properties of metallic materials upon megaplastic deformation,” Deform. Razr. Mater. 5, 8–13 (2014).
L. S. Metlov, “Nonequilibrium dynamics of a twodefect system under severe load,” Phys. Rev. E 90 (3), 022124(8) (2014).
A. V. Khomenko and I. A. Lyashenko, “Phase dynamics and kinetics of thin lubricant film driven by correlated temperature fluctuations,” Fluct. Noise Lett. 7 (2), L111–L133 (2007).
A. V. Khomenko and I. A. Lyashenko, “Melting of ultrathin lubricant film due to dissipative heating of friction surfaces,” Tech. Phys, 52 (9), 1239–1244 (2007).
L. S. Metlov, Nonequilibrium Evolution Thermodynamics and Its Applications (Noulidzh, Donetsk, 2014).
A.V. Khomenko, D.S. Troshchenko, and L.S. Metlov, “Thermodynamics and kinetics of solids fragmentation ae severe plastic deformation,” Condens. Matter Phys. 18 (3), 33004 (14) (2015).
A. V. Khomenko, D. S. Troshchenko, D. S. Boyko, and M. V. Zakharov, “The external periodic influence effect on the kinetics of metals fragmentation during the severe plastic deformation,” J. Nano-Electron. Phys. 7 (1), 01039(11) (2015).
A. V. Khomenko, D. S. Troshchenko, and L. S. Metlov, “Simulation of the kinetics of regimes of materials fragmentation upon severe plastic deformation,” Metallofiz. Noveishie Tekhnol. 39 (2), 265–284 (2017).
A. V. Khomenko, I. A. Lyashenko, and L. S. Metlov, “Phase dynamics and kinetics of severe plastic deformation,” Metallofiz. Noveishie Tekhnol. 30 (6), 859–872 (2008).
L. S. Metlov and V. N. Varyukhin, “Simulation of laws of strengthening of bulk solids by SPD by the methods of nonequilibrium evolution thermodynamics. I. Dependences on the problem parameters,” Fiz. Tekhn. Vysok. Davl. 22 (2), 7–21 (2012).
G. A. Malygin, “Kinetic mechanism of the fragmented dislocation structures upon large plastic deformations,” Phys. Solid State 44 (11), 2072–2079 (2002).
A. A. Mazilkin, B. B. Straumal, S. G. Protasova, O. A. Kogtenkova, and R. Z. Valiev, “Structural changes in aluminum alloys upon severe plastic deformation,” Phys. Solid State 49 (5), 868–873 (2007).
R. K. Islamgaliev, K. M. Nesterov, and R. Z. Valiev, “Evolution of copper structure upon consolidation of powders by intensive plastic torsion,” Vestn. Ufa Gos. Aviats. Tekhn. Univ. 17 (4), 81–89 (2013).
I. G. Brodova, “Effective methods of refining the aluminum alloy structure,” Zh. Sibirsk. Federal. Univ., Tekhn. Tekhnolog. 8 (4), 519–530 (2015).
B. B. Straumal, S. G. Protasova, A. A. Mazilkin, O. A. Kogtenkova, L. Kurmanaeva, B. Baretzky, G. Schütz, A. Korneva, and P. Zieba, “SPD-induced changes of structure and magnetic properties in the Cu–Co alloys,” Mater. Letters 98, 217–221 (2013).
R. Z. Valiev and I. V. Aleksandrov, Bulk Nanostructured Metallic Materials: Fabrication, Structure, and Properties (Akademkniga, Moscow, 2007).
A. D. Pogrebnjak, “Structure and properties of nanostructured Ti–Hf–Zr–V–NbN coatings,” J. Nanomater. 2013 (12), 1–12 (2013).
Yu. V. Khlebnikova, L. Yu. Egorova, V. P. Pilyugin, T. R. Suaridze, and A. M. Patselov, “Evolution of the structure of an a-titanium single crystal during high pressure torsion,” Tech. Phys. 60 (7), 1005–1013 (2015).
A. I. Olemskoi, A. V. Khomenko, and D. O. Kharchenko, “Self-organized criticality within fractional Lorenz scheme,” Physica A 323, 263–293 (2003).
A. A. Andronov, A. A. Vitt, and S. E. Khaikin, Vibration Theory (Nauka, Moscow, 1981).
A. V. Khomenko and I. A. Lyashenko, “Statistical theory of the boundary friction of atomically flat solid surfaces in the presence of a lubricant layer,” Phys.-Usp. 55 (10), 1008–1034 (2012).
I. A. Birger and R. R. Mavlyutov, Strength of Materials (Nauka, Moscow, 1986).
P. P. Pal–Val, Yu. N. Loginov, S. L. Demakov, A. G. Illarionov, V. S. Natsik, L. N. Pal-Val, A. A. Davydenko, and A. P. Rybalko, “Unusual Young’s modulus behavior in ultrafine-grained and microcrystalline copper wires caused by texture changes during processing and annealing,” Mater. Sci. Eng., A 618, 9–15 (2014).
E. G. Pashinskaya, A. V. Zavdoveev, A. A. Maksakova, V. N. Varyukhin, A. A. Tolpa, and V. M. Tkachenko, “Effect of a drawer with shift on the features of the structure and properties of a low-carbon wire,” Fiz. Tekh. Vysok. Davl. 25 (1, 2), 107–121 (2015).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.V. Khomenko, D.S. Troshchenko, L.S. Metlov, 2017, published in Deformatsiya i Razrushenie Materialov, 2017, No. 8, pp. 2–10.
Rights and permissions
About this article
Cite this article
Khomenko, A.V., Troshchenko, D.S. & Metlov, L.S. Phase Dynamics of Metal Fragmentation during Megaplastic (Severe) Deformation. Russ. Metall. 2018, 295–302 (2018). https://doi.org/10.1134/S0036029518040079
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036029518040079