 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12854 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4810 |
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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 |
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| 15. | L. Krüger, L. W. Meyer, S. V. Razorenov, and G. I. Kanel,
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|
| Received |
09 February 2010 |
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