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IssuesArchive of Issues2010-4pp.624-632

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Total articles in the database: 4725
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G.V. Garkushin, O.N. Ignatova, G.I. Kanel, L. Meyer, and S.V. Razorenov, "Submicrosecond Strength of Ultrafine-Grained Materials," Mech. Solids. 45 (4), 624-632 (2010)
Year 2010 Volume 45 Number 4 Pages 624-632
DOI 10.3103/S0025654410040114
Title Submicrosecond Strength of Ultrafine-Grained Materials
Author(s) G.V. Garkushin (Institute for Problems of Chemical Physics, Russian Academy of Sciences, Akad. Semenova 1, Chernogolovka, Moscow oblast, 142432 Russia, garkushin@ficp.ac.ru)
O.N. Ignatova (Russian Federal Nuclear Center - The All-Russian Research Institute of Experimental Physics, pr-t Mira 37, Sarov, Nizhny Novgorod oblast, 607188 Russia, oign@mail.nnov.ru)
G.I. Kanel (Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, Moscow, 125412 Russia, kanel@ficp.ac.ru)
L. Meyer (Chemnitz University of Technology, Nationen 62, Chemnitz, 09107 Germany, lothar.mayer@wsk.tu-chemnitz.de)
S.V. Razorenov (Institute for Problems of Chemical Physics, Russian Academy of Sciences, Akad. Semenova 1, Chernogolovka, Moscow oblast, 142432 Russia, razsv@ficp.ac.ru)
Abstract We present the results of measuring the strength properties of metals and alloys with face-centered cubic lattice (copper, aluminum), body-centered cubic structure (Armco iron, tantalum), hexagonal close-packed structure (titanium and titanium alloy BT6) in the original coarse-grained and submicrocrystalline state under shock-wave loading. The grain dimension of the materials under study was changed by intensive plastic deformation. The influence of the grain dimensions on the dynamic yield stress does not always agree with the data of low-rate test even in sign, which is interpreted in the framework of general laws of the strain rate influence on the metal and alloy flow stress. As the grain dimension decreases, there is an increase in the compression rate in the plastic shock wave, a small increase in the fracture strength (spall strength), and an increase in the spall fracture rate.
Keywords ultrafine-grained metals and alloys, high-rate strain, spall strength, dynamic yield stress
References
1.  M. A. Meyers, D. J. Benson, O. Vohringer, et al., "Constitutive Description of Dynamic Deformation: Physically-Based Mechanisms," Mater. Sci. Engng 322 (1-2), 194-216 (2002).
2.  R. V. Valiev and I. V. Aleksandov, Nanostructure Materials Obtained by Intensive Plastic Strain (Logos, Moscow, 2002) [in Russian].
3.  G. I. Kanel, S. V. Razorenov, A. V. Utkin, and V. E. Fortov, Shock-Wave Phenomena in Condensed Media (Yanus-K, Moscow, 1996) [in Russian].
4.  G. I. Kanel, S. V. Razorenov, and V. E. Fortov, "Submicrosecond Strength of Materials," Izv. Akad. Nauk. Mekh. Tverd. Tela, No. 4, 86-111 (2005) [Mech. Solids (Engl. Transl.) 40 (4), 69-89 (2005)].
5.  L. M. Barker and R. E. Hollenbach, "Laser Interferometer for Measuring High Velocities of Any Reflecting Surface," J. Appl. Phys. 43 (11), 4669-4675 (1972).
6.  G. V. Garkushin, S. V. Razorenov, and G. I. Kanel, "Influence of Structure Factors on Submicrosecond Strength of Aluminum Alloy D16T," Zh. Tekh. Fiz. 78 (11), 53-59 (2008) [Tech. Phys. (Engl. Transl.) 53 (11), 1441-1446 (2008)].
7.  G. I. Kanel, "Dynamic Strength of Materials," Fatigue Fract. Engng Mater. Struct. 22 (11), 1011-1019 (1999).
8.  G. I. Kanel, "Distortion of the Wave Profiles in an Elastoplastic Body upon Spalling," Zh. Prikl. Mekh. Tekh. Fiz. 42 (2), 194-198 (2001) [J. Appl. Mech. Tech. Phys. (Engl. Transl.) 42 (2), 358-362 (2001)].
9.  M. Hockauf, L. W. Meyer, T. Halle, et al., "Mechanical Properties and Microstructural Changes of Ultrafine-Grained AA6065T6 during High-Cycle Fatigue," Int. J. Mat. Res. 97 (10), 1392-1400 (2006).
10.  L. W. Meyer, M. Hockauf, L. Krüger, and I. Schneider, "Compressive Behavior of Ultrafine-Grained AA6065T6 over a Wide Range of Strains and Strain Rates," Int. J. Mat. Res. 98 (3), 191-199 (2007).
11.  G. I. Kanel, S. V. Razorenov, and V. E. Fortov, Shock-Wave Phenomena and the Properties of Condensed Matter (Springer, New York, 2004).
12.  S. V. Razorenov, A. S. Savinykh, E. B. Zaretskii, et al., "Effect of Preliminary Strain Hardening on the Flow Stress of Titanium and a Titanium Alloy during Shock Compression," Fiz. Tverd. Tela 47 (4), 639-645 (2005) [Phys. Solid State (Engl. Transl.) 47 (4), 663-669 (2005)].
13.  A. Kumar and R. G. Kumble, "Viscous Drag on Dislocations at High Strain Rates in Copper," J. Appl. Phys. 40 (9), 3475-3480 (1969).
14.  V. I. Alshits and V. L. Indenbom, "Dynamical Drag on Dislocations," Uspekhi Fiz. Nauk, 115 (1), 3-38 (1975) [Sov. Phys. Usp. (Engl. Transl) 18, 1 (1975)].
15.  L. Krüger, L. W. Meyer, S. V. Razorenov, and G. I. Kanel, "Investigation of Dynamic Flow and Strength Properties of Ti-6-22-22S at Normal and Elevated Temperatures," Int. J. Impact Engng 28 (8), 877-890 (2003).
16.  P. B. Trivedi, J. R. Asay, Y. M. Gupta, and D. P. Field, "Influence of Grain Size on the Tensile Response of Aluminum under Plate-Impact Loading," J. Appl. Phys. 102, 084513 (9) (2007).
Received 09 February 2010
Link to Fulltext http://www.springerlink.com/content/t746k6k422476x27/
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