Search Results - "Karpov, I. D."

A Neutron Diffraction Study of the Effect of Holdings and Heat Treatment on Residual Stresses in a Steel Weld by Karpov, I. D., Em, V. T., Karpov, I. G., Il’in, A. V.

“…Residual stresses in an X-shaped weld of 32-mm-thick steel plates have been studied using neutron diffraction. The effect of pre-holding of weldments and their…”
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A Study of Residual Stresses in Steel Plates Obtained by Laser Deposition Directly on a Rigid Substrate by Karpov, I. D., Em, V. T., Rylov, S. A., Ivanov, S. Yu, Zemlyakov, E. V., Babkin, K. D.

“…A neutron diffraction method has been used to study residual stresses in corrosion-resistant martensitic steel AISI 410 plates of the composition (wt %): 0.15…”
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A Neutron Diffraction Study of the Effect Produced by the Direction of Crystal Growth on the Distribution of Residual Stresses in Austenite Steel Prisms Manufactured by Selective Laser Melting by Karpov, I. D., Em, V. T., Rylov, S. A., Sul’yanova, E. A., Sukhov, D. I., Khodyrev, N. A.

“…The effect affected by the choice of the direction of the crystal growth by selective laser melting on the distribution of residual stresses was studied on the…”
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Analysis of Internal Stress in a Tape Subsrate Made of the AISI 310S Stainless Steel for the Second-Generation HTS Wires Using Neutron Stress Diffractometry by Karpov, I. D., Irodova, A. V., Kruglov, V. S., Shavkin, S. V., Em, V. T.

“…Neutron stress diffractometry is used to study internal (residual) stress in a tape made of the AISI 310S stainless steel with a thickness of 100 μm and a…”
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On equations of state in a lattice Boltzmann method by Kupershtokh, A.L., Medvedev, D.A., Karpov, D.I.

“…We investigate the use of various equations of state (EOS) in the single-component multiphase lattice Boltzmann model. Several EOS are explored: van der Waals,…”
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Calculations of pulsation period of a toroidal bubble during diaphragm discharge in electrolyte by Medvedev, R.N., Chernov, A.A., Karpov, D.I.

“…Numerical calculations of pulsation period of a toroidal bubble on the edge of a round diaphragm current concentrator during electric discharge in electrolyte…”
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One-pot synthesis of 2H-thiopyrans from β-amino enones by Karpov, I. D., Ovchinnikov, K. L., Kolobov, A. V.

“…A one-pot synthesis of 2 H -thiopyrans from β-amino enones has been developed. Sequential treatment of β-amino enones with the Lawesson’s reagent and…”
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Electrical Properties of Transformer Oil with the Addition of Extremely Low Concentrations of Carbon Nanotubes by Korobeynikov, S. M., Ridel, A. V., Karpov, D. I.

“…Electrical properties of transformer oil with additives of carbon nano-tubes are studied at the extremely low concentrations of the nano-tubes. Electrical…”
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Mechanism of partial discharges in free helium bubbles in transformer oil by Korobeynikov, S. M., Ridel, A. V., Karpov, D. I., Ovsyannikov, A. G., Meredova, M. B.

“…Partial discharges (PD) in floating bubbles and in microspheres made from thin glass walls in transformer oil were studied experimentally and theoretically. In…”
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Determination of Internal Strain and Residual Stress in Wires HTSC-2 Using Neutron Stress Diffractometry by Irodova, A. V., Karpov, I. D., Kruglov, V. S., Krylov, V. E., Shavkin, S. V., Em, V. T.

“…The main task in creating high-current cables based on HTSC-2 wires for thermonuclear installations is to maximize the resistance of the cable to mechanical…”
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Registration and simulation of partial discharges in free bubbles at AC voltage by Korobeynikov, S. M., Ridel, A. V., Medvedev, D. A., Karpov, D. I., Ovsyannikov, A. G., Meredova, M. B.

“…Partial discharges in free bubbles in transformer oil are investigated both experimentally and theoretically. Optical, electric and optoelectronic registration…”
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Residual Stress in the Carrier Tape AISI 310S at the Stage of Deposition of the YSZ Buffer Layer when Manufacturing of HTS-2G Wire by Irodova, A. V., Karpov, I. D., Kruglov, V. S., Krylov, V. E., Shavkin, S. V., Em, V. T.

“…Using neutron diffraction we determined internal residual stress in the stainless steel AISI 310S carrier tape with a thickness of 100 µm and a width of 4 mm…”
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Two-Directional Stress-Free Comb Sample for Weld Study by Neutron Diffraction by Karpov, I. D., Em, V. T., Mikula, P.

“…Neutron diffraction is a powerful tool for investigations of residual stresses in bulk polycrystalline samples. The method is based on measuring the relative…”
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Streamers in transformer oil initiated by partial discharge in a bubble at low AC electric fields by Korobeynikov, S. M., Ridel, A. V., Ovsyannikov, A. G., Karpov, D. I., Lyutikova, M. N., Loman, V. A., Savenko, R. A.

“…The possible mechanisms of electrical breakdown of transformer oil at low voltage values at alternating voltage were investigated. The formation of streamers…”
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Measuring Residual Stresses in Vamas International Calibration Block with the Stress Diffractometer of Ir-8 Reactor by Karpov, I. D., Em, V. T., Sumin, V. V.

“…The results of measuring residual strains/stresses in the VAMAS international calibration block with the STRESS neutron diffractometer installed in the…”
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Detonation of an Explosive Containing Carbon Nanotubes by Ershov, A. P., Dashapilov, G. R., Karpov, D. I., Kashkarov, A. O., Luk’yanov, Ya. L., Pruuel, E. R., Rubtsov, I. A.

“…RDX containing a small amount of single-walled carbon nanotubes is obtained by the method of co-precipitation out of a solution. The detonation of this…”
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Study of Through-Thickness Stress Distribution in Steel Double-V Butt Weld by Karpov, I. D., Em, V. T., Artemiev, D. M., Karpov, I. G., Sadkin, K. E., Ilyin, A. V.

“…Through-thickness stress distribution in 32 mm thick ferritic steel plates welded with double-V groove was studied using neutron diffraction and finite element…”
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Critical electric-field strength for anisotropic spinodal decomposition of water by Karpov, D. I., Medvedev, D. A., Kupershtokh, A. L.

“…Threshold values of an electric field for anisotropic spinodal decomposition of water in a supercritical region at T = 670 K and at a low temperature of about…”
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Neutron Diffraction Research of Residual Stress in Metal Plates Deposited on Rigid Substrate by DLMD Method by Karpov, I. D., Rylov, S. A., Em, V. T., Blagov, A. E., Ivanov, S. Y., Zemlyakov, E. V., Babkin, K. D.

“…One of the features of direct laser metal deposition (DLMD) method is presence of high residual stress in produced parts. The information about residual stress…”
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Residual stress instrument with double-crystal monochromator at research reactor IR-8 by Em, V.T., Karpov, I.D., Somenkov, V.A., Glazkov, V.P., Balagurov, A.M., Sumin, V.V., Mikula, P., Ŝaroun, J.

“…Residual stress instrument STRESS at 8 MW research reactor IR-8 at National Research Center “Kurchatov Institute” is described. Using double-crystal…”
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