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19 Result(s)

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  1. No Access

    Article

    Influence of Ultrafine-Grained Structure on the Kinetics and Fatigue Failure Mechanism of VT6 Titanium Alloy

    The kinetics and mechanism of fatigue failure of the VT6 titanium alloy (composition, wt %: 5.95 V, 5.01 Al, 89.05 Ti) in the initial (hot-rolled) coarse-grained (CG) state and after equal-channel angular pres...

    G. V. Klevtsov, R. Z. Valiev, I. P. Semenova… in Russian Journal of Non-Ferrous Metals (2019)

  2. No Access

    Article

    Nanostructured titanium alloys: New developments and application prospects

    The work presents the results of recent studies of nanostructured titanium and its alloy of the grade VT-6 (Ti-6Al-4V), in which we managed, using the methods of severe plastic deformation (SPD), to obtain ult...

    I. P. Semenova, G. I. Raab, R. Z. Valiev in Nanotechnologies in Russia (2014)

  3. No Access

    Article

    Service properties of ultrafine-grained Ti–6Al–4V alloy at elevated temperature

    This study deals with investigation of mechanical properties and fatigue behavior of the ultra-fine grained (UFG) alloy Ti–6Al–4V at elevated temperatures. UFG samples were produced by means of combination of ...

    I. P. Semenova, G. I. Raab, E. R. Golubovskiy, R. R. Valiev in Journal of Materials Science (2013)

  4. No Access

    Article

    Enhanced fatigue properties of ultrafine-grained Ti rods processed by ECAP-Conform

    This study is focused on enhancement of the fatigue properties of Ultrafine Grain titanium (UFG Ti) processed by ECAP-Conform and subsequent drawing. By examining specific combinations of ECAP-Conform and draw...

    I. P. Semenova, A. V. Polyakov, G. I. Raab, T. C. Lowe… in Journal of Materials Science (2012)

  5. No Access

    Article

    Strength and high fatigue properties of ultrafine-grained titanium rods produced by severe plastic deformation

    The formation of an ultrafine-grained structure (UFGS) in titanium by severe plastic deformation significantly increases its mechanical properties, among them fatigue strength. In this work, high mechanical pr...

    I. P. Semenova in Russian Metallurgy (Metally) (2010)

  6. No Access

    Article

    Corrosion behavior of titanium materials with an ultrafine-grained structure

    The effect of an ultrafine-grained structure (UFGS) in titanium materials, namely, commercial purity titanium and VT6 alloy, on their corrosion resistance is studied. The schedules of surface treatment by chem...

    N. A. Amirkhanova, R. Z. Valiev, E. Yu. Chernyaeva… in Russian Metallurgy (Metally) (2010)

  7. Article

    Erratum to: Effect of Equal Channel Angular Pressing on the Fracture Behavior of Commercially Pure Titanium

    I. Sabirov, R.Z. Valiev, I.P. Semenova… in Metallurgical and Materials Transactions A (2010)

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  8. No Access

    Article

    Effect of Equal Channel Angular Pressing on the Fracture Behavior of Commercially Pure Titanium

    This article focuses on the effect of equal channel angular pressing (ECAP) on the fracture behavior of a commercially pure (CP) Ti. Standard mechanical tensile and fracture tests are performed at room tempera...

    I. Sabirov, R.Z. Valiev, I.P. Semenova… in Metallurgical and Materials Transactions A (2010)

  9. No Access

    Article

    Fatigue resistance of titanium with ultrafine-grained structure

    The characteristics of fatigue resistance of technically pure titanium obtained by combined treatment with the use of severe plastic deformation are studied. Fatigue tests of smooth and notched specimens are p...

    I. P. Semenova, G. Kh. Salimgareeva, V. V. Latysh… in Metal Science and Heat Treatment (2009)

  10. Article

    Open Access

    Strength and fatigue properties enhancement in ultrafine-grained Ti produced by severe plastic deformation

    Severe plastic deformation (SPD) of titanium creates an ultrafine-grained (UFG) microstructure which results in significantly enhanced mechanical properties, including increasing the high cycle fatigue strengt...

    I. P. Semenova, R. Z. Valiev, E. B. Yakushina… in Journal of Materials Science (2008)

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  11. No Access

    Article

    Nanostructured titanium for biomedical applications: New developments and challenges for commercialization

    In this paper, the scientific basics for the production of nanostructured titanium using the technology of severe plastic deformation to manufacture medical implants for their wide use in trauma treatment, ort...

    R. Z. Valiev, I. P. Semenova, V. V. Latysh, A. V. Shcherbakov… in Nanotechnologies in Russia (2008)

  12. No Access

    Article

    Mechanical behavior of ultrafine-grained titanium rods obtained using severe plastic deformation

    We present the results of the investigation of the mechanical behavior of ultrafine-grained (UFG) titanium rods—semifinished products obtained by equal-channel angular (ECA) pressing in combination with subseq...

    I. P. Semenova, A. I. Korshunov… in The Physics of Metals and Metallography (2008)

  13. No Access

    Article

    Effect of rolling-assisted deformation on the formation of an ultrafine-grained structure in a two-phase titanium alloy subjected to severe plastic deformation

    The effect of rolling in the temperature range 450–650°C on the fragmentation of the primary phase in a hot-rolled VT6 alloy rod preliminarily subjected to severe plastic deformation by equal-channel angular p...

    S. L. Demakov, O. A. Elkina, A. G. Illarionov… in The Physics of Metals and Metallography (2008)

  14. No Access

    Article

    Microstructural features of failure surfaces and low-temperature mechanical properties of Ti-6Al-4V ELI ultra-fine grained alloy

    Microstructural regularities of failure surfaces and low-temperature mechanical characteristics in quasistatic uniaxial tension and compression have been studied for ultra-fine grained structural states of Ti-...

    E. D. Tabachnikova, A. V. Podolskiy, V. Z. Bengus, S. N. Smirnov… in Strength of Materials (2008)

  15. No Access

    Chapter and Conference Paper

    Microstructure and Mechanical Properties of Long, Ultrafine-Grained Ti Rods

    In this paper, we report our recent studies on the effect of processing routes on the microstructure and mechanical properties of long ultrafine-grained Ti rods. CP Ti (Grade 2) rods were processed into long, ...

    I.P. Semenova, V.V. Latysh, Y.T. Zhu… in Nanostructured Materials by High-Pressure … (2006)

  16. No Access

    Chapter and Conference Paper

    Improving the Mechanical Properties of Ti-6Al-4V Alloy by Equal Channel Angular Pressing

    In this study, we attempted to enhance the strength of the two-phase Ti-6Al-4V alloy using severe plastic deformation (SPD) and thermo-mechanical treatment. It was established that structure refinement by ECAP...

    L.R. Saitova, I.P. Semenova, G.I. Raab… in Nanostructured Materials by High-Pressure … (2006)

  17. No Access

    Article

    Effect of severe plastic deformation and thermomechanical treatment on the structure and properties of titanium

    The effect of different modes of combined treatment on the microstructure and mechanical properties of long-length semiproducts from commercial purity titanium is studied. The combined production process inclu...

    G. Kh. Sadikova, V. V. Latysh, I. P. Semenova… in Metal Science and Heat Treatment (2005)

  18. No Access

    Article

    On the Removal of Aluminide Coating from Blades of Gas Turbin Engine

    The peculiarities of removing ВСДП-11 coating from ЖС32 type alloy in an acidic etching bath depending on the concentration and ratio between the amounts of potassium bichromate and ammonium heptamolybdate add...

    N. A. Amirkhanova, R. R. Nev'yantseva, A. A. Bybin, I. P. Semenova… in Protection of Metals (2003)

  19. No Access

    Article

    Thermal stability of the structure of a high-temperature nickel alloy fabricated by two different technologies

    High-temperature treatment of the melt (HTTM) is a very simple and available technique for stabilizing and improving the service properties of parts. It tonsists in heating the melt to a certain critical tempe...

    A. G. Tyagunov, E. E. Baryshev, T. K. Kostina… in Metal Science and Heat Treatment (1999)