50 Result(s)

within A. A. Ershov

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  1. No Access

    Article

    Analysis of Combined Hydroforming and Blanking of Sheet Articles

    Combined hydroforming and blanking is simulated. The use of two fracture models is analyzed. Results of field experiments conducted to validate the simulation are presented. It is concluded that the ductile fr...

    V. V. Mironenko, E. V. Ledovskikh, S. A. Osipov, A. A. Ershov in Metallurgist (2017)

  2. No Access

    Article

    Formation of Self-Sealing Tubular Blanks with a Moving Edge

    The benefits and advantages of forming parts by having a moving edge during the forming operation are illustrated by using three parts as examples. The difficulties that arise with the use of this ...

    V. V. Mironenko, S. A. Osipov, A. A. Ershov in Metallurgist (2017)

  3. No Access

    Article

    A neutron field monitoring system for collider experiments

    A monitoring system for intense (up to 105 neutrons/(cm2 s)) neutron fluxes with energies as high as 15 MeV has been developed for long-term operation in strong magnetic and radiation fields of collider experimen...

    A. M. Gribushin, A. I. Demianov, A. A. Ershov in Instruments and Experimental Techniques (2017)

  4. No Access

    Article

    Simulation of the Consolidation of a Porous Material in a Combined Rolling–Extrusion Process

    The combined rolling–extrusion of a porous aluminum billet is simulated mathematically using the finite-element method and QFORM V8 software. A three-dimensional problem statement with one plane of symmetry is...

    A. A. Ershov, Yu. N. Loginov, N. N. Zagirov, E. V. Ivanov in Metallurgist (2016)

  5. No Access

    Article

    X-ray fluorescence determination of the surface density of thin chromium and iron films using reference samples of elements with close atomic numbers

    In X-ray fluorescence determinations of the surface density of thin chromium and iron films, we studied the possibility of using an approach based on the application of reference samples of elements with close...

    N. I. Mashin, E. A. Chernyaeva, A. N. Tumanova in Journal of Analytical Chemistry (2016)

  6. No Access

    Article

    Assessing the Consequences of the Softening of Metal During Hot-Working by Using the Software Package QForm V8

    This article examines the effect of the strain-hardening parameters of a deformable material on the strain distribution in a product obtained by upsetting. The study was conducted with the use of materials hav...

    A. A. Ershov, Yu. N. Loginov, S. L. Demakov in Metallurgist (2015)

  7. No Access

    Article

    Determination of Surface Density of Thin Manganese Films Using Reference Samples of Elements with Similar Atomic Numbers

    The feasibility of an approach based on reference samples of elements with similar atomic numbers is considered for x-ray fluorescence determination of the surface density of manganese thin films. This diagnos...

    N. I. Mashin, E. A. Chernjaeva, A. N. Tumanova in Journal of Applied Spectroscopy (2015)

  8. No Access

    Article

    Heat Treatment Technology for High-Strength Engineering Steel Variable Cross-Section Components

    Heat treatment parameters providing a required level of mechanical properties for different component parts are determined on the basis of experimental data about supercooled austenite transformation in engine...

    M. V. Maisuradze, M. A. Ryzhkov, Yu. V. Yudin, A. A. Ershov in Metallurgist (2014)

  9. No Access

    Article

    End-to-End Simulation of Casting and Metal-Forming Operations with ProCAST and Qform Software

    This article presents an example of the end-to-end simulation of the casting of a steel ingot in an ingot mold and solid forging of the ingot. The simulation is performed using the software products ProCAST (E...

    A. D. Abdullin, A. A. Ershov in Metallurgist (2014)

  10. No Access

    Article

    Use of the Program PAM-STAMP to Study the Effect of the As-Received Condition of a Material on its Formability During Stamping

    The effect of the as-received condition of an aluminum alloy on its stampability in the production of an automobile part is examined. An explanation is given of the process of using software package PAM-STAMP ...

    A. A. Ershov, Yu. N. Loginov in Metallurgist (2014)

  11. No Access

    Article

    X-Ray Fluorescence Determination of the Surface Density of Chromium Nanolayers

    An auxiliary system consisting of thin-film layers of chromium deposited on a polymer film substrate is used to construct calibration curves for the relative intensities of the K α lines of chromi...

    N. I. Mashin, E. A. Chernjaeva, A. N. Tumanova in Journal of Applied Spectroscopy (2014)

  12. No Access

    Article

    Interelement effects in X-ray fluorescence determination of the surface density of vanadium nanofilms on various substrates

    This paper presents a detailed study of the effect of the fluorescence of bulk substrates on the fluorescence intensity of vanadium nanofilms of various thicknesses and examines vanadium K α fluor...

    N. I. Mashin, E. A. Chernyaeva, A. N. Tumanova, A. A. Ershov in Inorganic Materials (2013)

  13. No Access

    Article

    Infrared absorption investigation of the role of octahedral groups upon the phase transition in the Rb2KMoO3F3 crystal

    The infrared absorption spectra of the oxyfluoride Rb2KMoO3F3 have been measured in the frequency range corresponding to stretching vibrations of the Mo-O anion octahedron with the purpose of clarifying their rol...

    Yu. V. Gerasimova, A. S. Oreshonkov, A. N. Vtyurin in Physics of the Solid State (2013)

  14. No Access

    Article

    Using the Inverse Solver “INVERSE” in PAM-STAMP 2G to Assess the Formability of a Part

    This article discusses the possibility of using a finite-element-based inverse design method to evaluate a technology for making parts by cold sheet stamping. It examines the process of reengineering in the so...

    A. A. Ershov, Yu. N. Loginov in Metallurgist (2013)

  15. No Access

    Article

    Mixed problem for a harmonic function

    A harmonic function is considered in a three-dimensional bounded domain. Its normal derivative is given on nearly the entire boundary of the domain, while the value of the harmonic function is specified on the...

    A. A. Ershov in Computational Mathematics and Mathematical Physics (2013)

  16. No Access

    Article

    On measurement of electrical conductivity

    A complete uniform asymptotic expansion is found for the integral ∬S2 udxdy, where u is the solution of the Neumann problem with a delta-function-like derivative on the boundary. A physical appl...

    A. A. Ershov in Computational Mathematics and Mathematical Physics (2013)

  17. No Access

    Article

    An X-ray fluorescence method for determining the mass absorption coefficient in thin-film V/Ge and Cr/Ge bilayer systems

    A new approach has been proposed for determining the mass absorption coefficient in the X-ray fluorescence characterization of V/Ge and Cr/Ge thin bilayer structures using simple-to-prepare unified layers grow...

    N. I. Mashin, E. A. Chernyaeva, A. N. Tumanova, A. A. Ershov in Inorganic Materials (2013)

  18. No Access

    Article

    Mutual influence of elements in x-ray fluorescence analysis of thin bilayer Ni/Ge-systems

    A new approach to the determination of the layer thickness in x-ray fluorescence analysis of bilayer Ni/Ge-systems was proposed. The approach was based on accounting for the degree of attenuation in the upper ...

    N. I. Mashin, A. G. Razuvaev, E. A. Chernyaeva in Journal of Applied Spectroscopy (2013)

  19. No Access

    Article

    Modeling the formation of automobile body panels by an elastic punch in the software package PAM-STAMP 2G

    A. A. Ershov, V. V. Kotov, Yu. N. Loginov in Metallurgist (2013)

  20. No Access

    Article

    Influence of substrate material on K α -line fluorescence intensity in chromium thin films

    Amplification factors for chromium K α-line fluorescence excited by emission from substrates fabricated from various metals were calculated using an auxiliary system comprising thin layers of chro...

    N. I. Mashin, I. A. Bacherikova, E. A. Chernjaeva in Journal of Applied Spectroscopy (2013)

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