Archive for December, 2011

Structural-phase transformations in low-stability condensed state systems December 27th, 2011

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The conditions of formation of low-stability condensed state systems, their behavior and structure are investigated. The objects
under study are alloys and compounds undergoing structural-phase transitions of the second type or close to it. The low-stability
(pre-transitional) state is treated here as the state of a system near its structural-phase transformations, in which its
structure and properties exhibit anomalies. An attempt is made to interpret the system from the physical standpoint relying
on a new insight into its state, in which the traditionally accepted phase-transition point is represented by a range of values
of the parameter controlling the transition. The material state within this range of values is structurally weakly stable
in terms of slight variations in the controlling parameter. It is shown that the thermodynamics of structural-phase transformations
of the material in this transient state is significantly affected by the interaction of structure defects.

Content Type Journal ArticlePages 1-16DOI 10.1007/s11182-011-9693-1Authors
A. I. Potekaev, V. D. Kuznetsov Siberian Physical-Technical Institute at the National Research Tomsk State University, Tomsk, RussiaV. V. Kulagina, Siberian State Medical University, Tomsk, Russia

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Structure of the electromagnetic field allowing exact solution of the Schrödinger equation in superposition with an Aharonov–Bohm field December 27th, 2011

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A charged particle is considered in a complex external electromagnetic field. The field is a superposition of an Aharonov–Bohm
field and some additional field. Here we describe all additional fields known up to the present time that allow exact solution
of the Schrödinger equation in a complex field.

Content Type Journal ArticlePages 1-12DOI 10.1007/s11182-011-9694-0Authors
V. B. Bagrov, National Research Tomsk State University, Tomsk, RussiaD. M. Gitman, High-Current Electronics Institute, Tomsk, RussiaA. D. Levin, Physics Institute, University of São Paulo, São Paulo, Brazil

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Modeling of macroscopic strain localization in alloys with the L12 structure December 27th, 2011

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Results of mathematical modeling of plastic strain superlocalization are presented with allowance for dislocation redistribution
into dislocation walls. The model based on the concept of hardening and rest is used to construct equations describing kinetics
of dislocations and substructure transformations. It is demonstrated that depending on the scenario of the strain model evolution
in the microvolume of a deformable body, different types of localization are possible under the influence of stress concentrators.

Content Type Journal ArticlePages 1-13DOI 10.1007/s11182-011-9696-yAuthors
V. A. Starenchenko, Tomsk State University of Architecture and Building, Tomsk, RussiaYu. V. Solov’eva, Tomsk State University of Architecture and Building, Tomsk, RussiaYa. D. Fakhrutdinova, Tomsk State University of Architecture and Building, Tomsk, RussiaL. A. Valuiskaya, Tomsk State University of Architecture and Building, Tomsk, Russia

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Cellular dislocation substructure in polycrystals of FCC solid solutions: quantitative characteristics, laws of formation, and role in hardening December 27th, 2011

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A cycle of investigations carried out by the authors and devoted to the most important cellular dislocation substructure is
generalized. Laws of formation of this substructure upon plastic strain of FCC Cu–Mn and Cu–Al alloy polycrystals are considered.
The influence of the grain size, strain temperature, and alloy concentration on the parameters of evolving cellular dislocation
substructures (DSS) is quantitatively analyzed by the transmission electron microscopy (TEM) method. Special attention is
given to the kinetic phase transition in the defect subsystem leading to the formation of the cellular DSS. Based on modern
dislocation models, it is demonstrated that hardening by the cellular DSS obeys the main dislocation laws.

Content Type Journal ArticlePages 1-18DOI 10.1007/s11182-011-9695-zAuthors
N. A. Koneva, Tomsk State University of Architecture and Building, Tomsk, RussiaL. I. Trishkina, Tomsk State University of Architecture and Building, Tomsk, RussiaÉ. V. Kozlov, Tomsk State University of Architecture and Building, Tomsk, Russia

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Influence of low-intensive beta-irradiation on phase transformations in silicon at microindentation December 27th, 2011

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Raman spectroscopy is used to investigate the morphology of silicon phase composition in the indenter imprint with spatial
resolution of ~200

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Structure evolution of a zirconium-based amorphous alloy upon megaplastic strain in the bridgeman chamber December 27th, 2011

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The structure evolution of the Zr50Ni18Ti17Cu15 massive metal glass upon megaplastic strain (MPS) in the Bridgeman chamber is investigated in a wide interval of strain degrees
at room temperature. It is demonstrated that upon MPS with n = 1/2 rotation of the Bridgeman anvil, nanocrystalline phases are precipitated in the alloy. With increasing strain, these
phases are dissolved. It is suggested that nucleation centers of nanocrystalline phases (nanoclusters) are formed in the amorphous
matrix upon MPS under compression without shear in the Bridgeman chamber. These phases grow in the shear bands transforming
into the nanocrystalline phase upon MPS.

Content Type Journal ArticlePages 1-8DOI 10.1007/s11182-011-9697-xAuthors
A. M. Glezer, G. V. Kurdyumov Institute of Physical Metallurgy and Metal Physics, Moscow, RussiaR. V. Sundeev, I. P. Bardin Central Scientific Research Institute of Ferrous Metallurgy, Moscow, RussiaA. V. Shalimova, I. P. Bardin Central Scientific Research Institute of Ferrous Metallurgy, Moscow, RussiaS. S. Useinov, Technological Institute of Superhard and New Carbon Materials, Troitsk, Russia

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Detection of (C + A)-type dislocation self-blocking in magnesium December 27th, 2011

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The self-blocking effect predicted theoretically and then observed in intermetallides is established for a pure metal, namely,
for magnesium. This effect can be observed only for magnesium single crystals whose axis is parallel to the c axis and whose yield stress behavior σ

y
(T) has a temperature anomaly. For such single crystals, the self-blocking of the (c + a)-type edge dislocations is established during pyramidal slip of type II. The self-blocking is proved by dislocation extension
along the preferred direction without external stress. In this case, the

1
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1

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Thermoelastic martensitic transformations in single crystals with disperse particles December 27th, 2011

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The results of investigations into the influence of disperse particles on the temperatures of martensitic transformations
as well as values of thermal and mechanical hysteresis in the FeNiCoAlTa, CoNiGa, NiFeGa, TiNi single crystals are reported.
It is shown that the disperse particles are responsible for refining martensitic crystals and changing their fine twin structure
as compared with the monophase state. This, in turn, affects the values of thermal and mechanical hysteresis and the temperature
range of superelasticity.

Content Type Journal ArticlePages 1-14DOI 10.1007/s11182-011-9701-5Authors
Yu. I. Chumlyakov, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaI. V. Kireeva, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaE. Yu. Panchenko, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaV. A. Kirillov, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaE. E. Timofeeva, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaI. V. Kretinina, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaYu. N. Danil’son, V. D. Kuznetsov Siberian Physical-Technical Institute of the National Research Tomsk State University, Tomsk, RussiaI. Karaman, Texas A&M University, College Station, Texas, USAH. Maier, University of Paderborn, Paderborn, GermanyE. Cesari, Universitat de les Illes Balears, Palma de Mallorca, Spain

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Investigations of the thermal stability of the microstructure of titanium produced by intense plastic deformation December 27th, 2011

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The results of theoretical and experimental studies of the mechanisms of diffusion-controlled processes in nanostructured
metals and alloys available in the literature and obtained by the authors are discussed. The molecular dynamic method was
used in the context of a modified embedded-atom method was used to investigate the process of collective recrystallization
of nanocrystalline titanium. An analytical description of the recrystallization kinetics has been proposed which takes into
account the contributions of triple joints to the thermodynamic driving force. Methods of transmission, including high-resolution,
electron microscopy were used to examine the kinetics of collective recrystallization in nanostructured titanium VT1-0. The
temperature dependence and values of the activation energy for collective recrystallization have been determined. Problems
of practical implementation of nanostructured unalloyed titanium in medicine are discussed.

Content Type Journal ArticlePages 1-19DOI 10.1007/s11182-011-9700-6Authors
Yu. R. Kolobov, Scientific Educational and Innovation Center “Nanostructured Materials and Nanotechnologies” of Belgorod State University, Belgorod, RussiaA. G. Lipnitskii, Scientific Educational and Innovation Center “Nanostructured Materials and Nanotechnologies” of Belgorod State University, Belgorod, RussiaM. B. Ivanov, Scientific Educational and Innovation Center “Nanostructured Materials and Nanotechnologies” of Belgorod State University, Belgorod, RussiaI. V. Nelasov, Scientific Educational and Innovation Center “Nanostructured Materials and Nanotechnologies” of Belgorod State University, Belgorod, RussiaS. S. Manokhin, Scientific Educational and Innovation Center “Nanostructured Materials and Nanotechnologies” of Belgorod State University, Belgorod, Russia

Journal Russian Physics JournalOnline ISSN 1573-9228Print ISSN 1064-8887

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Erratum to: Characterization of Generalized Gradient Young Measures Generated by Sequences in W1,1 and BV December 27th, 2011

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Erratum to: Characterization of Generalized Gradient Young Measures Generated by Sequences in W1,1 and BV

Content Type Journal ArticleCategory ErratumPages 1-8DOI 10.1007/s00205-011-0477-0Authors
Jan Kristensen, Mathematical Institute, University of Oxford, 24–29 St. Giles’, Oxford, OX1 3LB UKFilip Rindler, Mathematical Institute, University of Oxford, 24–29 St. Giles’, Oxford, OX1 3LB UK

Journal Archive for Rational Mechanics and AnalysisOnline ISSN 1432-0673Print ISSN 0003-9527

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