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  1. No Access

    Article

    Mathematical Model for Process of the Hydrogen Permeability Management of Metals with Internal Stresses Taking into Account the Formation and Decay of Motionless Complexes

    A model is proposed for mathematical description of hydrogen diffusion in metals taking into account formation and decay of motionless complexes, taking into account internal elastic stresses. Simple ratios ar...

    A. V. Zvyagintseva in Bulletin of the Russian Academy of Sciences: Physics (2020)

  2. No Access

    Chapter

    Comparative Evaluation of Mesoscale Sensitivity to Crack Formation in Multi-pass Welds Using Wires IN52 and IN52MSS

    Assessment of susceptibility of multipass welds, produced by using wires ERNiCrFe-7 (IN52) and ERNiCrFe-13(IN52MSS), to crack formation was carried out. The PVR test was used to determine susceptibility to cra...

    K. A. Yushchenko, V. S. Savchenko, A. V. Zvyagintseva… in Cracking Phenomena in Welds IV (2016)

  3. No Access

    Chapter

    Multi-scale Modeling of the Stress-Strain State During Welding of Ni-Based Alloys

    Numerical modeling of changes of stress-strain state in welding of alloys of Ni-Cr–Fe alloying system at macro- and mesoscales was carried out. The kinetics of changes of stresses and deformations in the weld ...

    K. A. Yushchenko, V. S. Savchenko, N. O. Chervyakov… in Cracking Phenomena in Welds IV (2016)

  4. No Access

    Article

    On the stability of defects in the structure of electrochemical coatings

    The conditions of metal hydride formation are studied during the cathodic reduction of metals through the parallel reactions of the Me n+ and H+ cations. It is established that this interaction ...

    A. V. Zvyagintseva, Yu. N. Shalimov in Surface Engineering and Applied Electrochemistry (2014)

  5. No Access

    Chapter and Conference Paper

    Laws of Diffusion of Hydrogen in Electrolytic Alloys on the Basis of Nickel

    The paper discusses the theoretical aspects of diffusion of hydrogen in am electrolytic nickel-based alloys. The analysis of dependence of an overstrain of hydrogen allocation by nature metal is carried out. T...

    A. V. Zvyagintseva, Y. N. Shalimov in Carbon Nanomaterials in Clean Energy Hydro… (2011)

  6. No Access

    Chapter and Conference Paper

    Increase of Solubility of Hydrogen in Electrolytic Alloys Ni–B

    The kinetics of process of interaction of hydrogen with electrochemical systems on the basis of nickel is considered. Experimental and physical and mathematical modeling of influence of distribution of a curre...

    A. V. Zvyagintseva, Y. N. Shalimov in Carbon Nanomaterials in Clean Energy Hydro… (2011)

  7. No Access

    Chapter and Conference Paper

    ENERGETICS OF METAL HYDRIDES FORMATION IN ELECTROCHEMICAL SYSTEMS

    We have determined that in low-temperature annealing conditions for Cr-samples (tannealing < 300°?) the secondary hydrogenation is possible which is proved by the fixation of dam** peak on the graphic chart Q− ...

    A. V. Zvyagintseva, Y. N. Shalimov in Carbon Nanomaterials in Clean Energy Hydrogen Systems (2008)

  8. No Access

    Chapter and Conference Paper

    Mechanisms Of Metal Hydrides Formation In The Presence Of Boron Compounds

    We have made an attempt to receive aluminum hydride by electrochemical method during cathodic hydrogen saturation of aluminum electrode. It is very interesting to consider alloys of light metals and boron from...

    A. V. Zvyagintseva, Y. N. Shalimov in Carbon Nanomaterials in Clean Energy Hydrogen Systems (2008)

  9. No Access

    Chapter and Conference Paper

    Interaction Peculiarities Of Hydrogen And Ni-B Galvanic Alloys

    Thus the introduction of boron into Ni fcc lattice leads to the change of its parameters, to the increase of internal stresses in the received Ni-B films. With the increase of boron concentration in the deposi...

    A. V. Zvyagintseva in Carbon Nanomaterials in Clean Energy Hydrogen Systems (2008)

  10. No Access

    Chapter and Conference Paper

    HYDROGEN PERMEATION AND NICKEL FILMS STRUCTURE CORRELATION

    The present paper aim was the investigation of the electrodeposition regimes influence on the structure and hydrogen permeation of the nickel films under 4 mcm thickness of, received from sulphamate electrolyt...

    A.V. ZVYAGINTSEVA, Y.G. KRAVTSOVA in Hydrogen Materials Science and Chemistry o… (2007)

  11. No Access

    Chapter and Conference Paper

    THE PROBLEM OF HYDROGEN PERMEATION INTO THE BORON DOPED ELECTRODEPOSITED NICKEL FILMS

    This work aim was the researching on the hydrogen penetration into the Ni and Ni-B coatings and on the electrodeposition regimes correlation. The investigations were carried out in the sulfamate nickelling ele...

    A.V. ZVYAGINTSEVA, Y.G. KRAVTSOVA in Hydrogen Materials Science and Chemistry o… (2007)

  12. No Access

    Chapter

    Character of Hot Crack Formation During Welding of Cast Heat-Resistant Nickel Alloys

    K.A. Yushchenko, V.S. Savchenko, N.O. Chervyakov… in Hot Cracking Phenomena in Welds (2005)