Papers by Author: Alex M. Glezer

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Authors: Peter Schlossmacher, Harald Rösner, A.V. Shelyakov, Alex M. Glezer
Authors: Alex M. Glezer, Margarita R. Plotnikova, Sergey V. Dobatkin, Nikolai S. Perov, Anna V. Shalimova
Abstract: The effect of severe plastic deformation in Bridgman’s chamber on magnetic properties of the amorphous alloys of metal-metalloid type Ni44Fe29Co15Si2B10, Fe50Ni33B17, Fe70Cr15B15 obtained by the melt quenching was studied. The substantial alteration of saturation magnetization depending on the number of ferromagnetic and antiferromagnetic components in the alloy was revealed. It was supposed that the internal separation into nanoscaled areas enriched and depleted by ferromagnetic components took place in the amorphous matrix under the action of severe plastic deformation.
Authors: Alex M. Glezer, Sergey V. Dobatkin, Margarita R. Plotnikova, Anna V. Shalimova
Abstract: The structure and mechanical properties of amorphous alloy Ni44Fe29Co15Si2B10 after severe plastic deformation (SPD) in Bridgman chamber at the different temperatures (77 and 298 K) have been studied. It is shown that the early stages of the SPD of amorphous alloy cause a noticeable decrease in microhardness HV and significant changes in the physical properties. With increasing the value of SPD the transition from inhomogeneous to homogeneous (or to qualitatively different) mode of plastic flow is observed, which is accompanied by the effects of homogeneous nanocrystallization. The nanoparticle size does not exceed 10 nm. It is established that the thermally activated nanocrystallization processes can occur at very low temperatures (77 K).
Authors: Alex M. Glezer, O.L. Utevskaja
Authors: Irina Gurtovaya, Sergey Prokoshkin, K.E. Inaekyan, Andrey Korotitskiy, Vladimir V. Stolyarov, Alex M. Glezer, S. Makushev, I. Khmelevskaya, U. Ugurchiev, S. Manaenkov
Abstract: Application of electroplastic deformation (EPD) by rolling to bulk long-sized samples of Ti-50.7 at.%Ni alloy allows increasing of the deformation strain without macrofailure by 1.5 to 3 times in comparison to cold rolling without electrical current application. Structure formation and functional properties were studied after various EPD regimes: current density (84 to 168 А/mm2) and impulse duration (80 and 160 ms). When the stage of mixed nanocrystalline and amorphous structure formation is reached as a result of EPD, a post-deformation annealing at 400 °С leads to a nanocrystalline structure formation in austenite and highest recovery stress values generation by the martensite.
Authors: Alex M. Glezer, V.A. Pozdnyakov, V.I. Kirienko, O.M. Zhigalina
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