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Erschienen in: Journal of Materials Science 24/2019

21.08.2019 | Metals & corrosion

Spark plasma sintering for high-speed diffusion bonding of the ultrafine-grained near-α Ti–5Al–2V alloy with high strength and corrosion resistance for nuclear engineering

verfasst von: Vladimir Nikolaevich Chuvil’deev, Aleksey Vladimirovich Nokhrin, Vladimir Ilyich Kopylov, Maksim Sergeevich Boldin, Mikhail Mikhaylovich Vostokov, Mikhail Yuryevich Gryaznov, Nataliya Yur’evna Tabachkova, Petr Tryaev

Erschienen in: Journal of Materials Science | Ausgabe 24/2019

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Abstract

The paper demonstrates the prospects of spark plasma sintering (SPS) for the high-speed diffusion bonding of the high-strength ultrafine-grained (UFG) near-α Ti–5Al–2V alloy. The effect of increased diffusion bonding intensity in the UFG Ti alloys is discussed also. The bonding areas of the UFG near-α Ti–5Al–2V alloy obtained by SPS are featured by high density, strength, and corrosion resistance. The rate of bonding in the UFG alloys has been shown to depend on the heating rate non-monotonously (with a pronounced maximum). At the stage of continuous heating and isothermic holding, the bonding kinetics was found to be determined by the exponential creep rate, the intensity of which in the coarse-grained alloys is limited by the diffusion rate in the crystal lattice α-Ti. In the UFG alloy, the exponential creep processes associated with gliding and climb of dislocations, the activation energy of which corresponds to the diffusion activation energy in the lattice dislocation nuclei, may take place simultaneously with the grain boundary sliding and Coble creep, the activation energy of which corresponds to the grain boundary diffusion activation energy.

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Fußnoten
1
In our opinion, the origin of the forming of the TiC nanoparticles is the presence of carbon in the titanium alloy (see Table 1), the concentration of which does not exceed the permissible value but appears to be enough for forming the TiC particles.
 
2
The differences in the initial shrinkage level result from the ≈ 0.02 mm difference in the specimen heights.
 
3
Since the average grain size in the weld in the UFG alloys was almost the same to the one of the metals outside the weld (Fig. 14), the origin of the reduced weld microhardness in the UFG alloys is still unclear. We think the reduced weld microhardness in the UFG alloys to be related most probably to the grain boundary recovery leading to the reduced density of defects in the UFG alloy grain boundaries. The second probable origin of the increased microhardness of the weld-affected zone in the CG alloys may be the creep (as discussed in more detail below), which is known to be accompanied by the formation of the dislocation substructures and low-angle boundaries [46, 47]. This hypothesis was confirmed by the results of EBSD analysis of the welds for the CG materials (Fig. 10a), in which the low-angle boundaries with the grain boundary angle of less than 2° were observed outside the weld predominantly (Fig. 10b).
 
4
The weld specimen was heated at the same rate (100 °С/min) up to 700 °С and then was held at this temperature for 10 min under different values of the uniaxial pressure σs = 50, 70, and 100 MPa (Fig. 21).
 
Literatur
3.
Zurück zum Zitat Gorynin IV, Chechulin BB (1990) Titan in mechanical engineering. Mashinostroenie, Moscow, p 400 (in Russian) Gorynin IV, Chechulin BB (1990) Titan in mechanical engineering. Mashinostroenie, Moscow, p 400 (in Russian)
14.
32.
Zurück zum Zitat Ermachenko AG, Lutfullin R Ya, Mulyukov RR (2011) Advanced technologies of processing titanium alloys and their applications in industry. Rev Adv Mater Sci 29(1):68–82 Ermachenko AG, Lutfullin R Ya, Mulyukov RR (2011) Advanced technologies of processing titanium alloys and their applications in industry. Rev Adv Mater Sci 29(1):68–82
40.
43.
Zurück zum Zitat Chuvil’deev VN, Nokhrin AV, Boldin MS, Baranov GV, Sakharov NV, Belov VYu, Lantsev EA, Popov AA, Melekhin NV, Lopatin YuG, Blagoveshchenskiy YuV, Isaeva NV (2019) Impact of mechanical activation on sintering kinetics and mechanical properties of ultrafine-grained 95W–Ni–Fe tungsten heavy alloys. J Alloys Compd 773:666–688. https://doi.org/10.1016/j.jallcom.2018.09.176 CrossRef Chuvil’deev VN, Nokhrin AV, Boldin MS, Baranov GV, Sakharov NV, Belov VYu, Lantsev EA, Popov AA, Melekhin NV, Lopatin YuG, Blagoveshchenskiy YuV, Isaeva NV (2019) Impact of mechanical activation on sintering kinetics and mechanical properties of ultrafine-grained 95W–Ni–Fe tungsten heavy alloys. J Alloys Compd 773:666–688. https://​doi.​org/​10.​1016/​j.​jallcom.​2018.​09.​176 CrossRef
45.
Zurück zum Zitat Rahaman MN (2003) Ceramic processing and sintering, 2nd edn. Marcel Dekker Inc., New York, p 876 Rahaman MN (2003) Ceramic processing and sintering, 2nd edn. Marcel Dekker Inc., New York, p 876
48.
Zurück zum Zitat Frost HJ, Ashby MF (1982) Deformation-mechanism maps. Pergamon Press, London, p 328 Frost HJ, Ashby MF (1982) Deformation-mechanism maps. Pergamon Press, London, p 328
51.
Zurück zum Zitat Kolobov YuR, Grabovetskaya GP, Ivanov KV, Valiev RZ, Zhu YT (2004) Grain boundary diffusion and creep of UFG Ti and Ti–6Al–4V alloy processed by severe plastic deformation. In: YT Zhu, TG Langdon, RZ Valiev, S Semiatin et al (eds) Proceedings of “ultrafine grained materials III”, pp 621–628 Kolobov YuR, Grabovetskaya GP, Ivanov KV, Valiev RZ, Zhu YT (2004) Grain boundary diffusion and creep of UFG Ti and Ti–6Al–4V alloy processed by severe plastic deformation. In: YT Zhu, TG Langdon, RZ Valiev, S Semiatin et al (eds) Proceedings of “ultrafine grained materials III”, pp 621–628
52.
Zurück zum Zitat Dudarev EF, Grabovetskaya GP, Kolobov YuR, Bakach GP, Kashin OA, Zhu TYu (2004) Deformation behavior and mechanical properties of ultrafine-grained titanium produced by equal-channel angular pressing. Russ Metall (Metally) 2004(1):45–82 (in Russian) Dudarev EF, Grabovetskaya GP, Kolobov YuR, Bakach GP, Kashin OA, Zhu TYu (2004) Deformation behavior and mechanical properties of ultrafine-grained titanium produced by equal-channel angular pressing. Russ Metall (Metally) 2004(1):45–82 (in Russian)
56.
Zurück zum Zitat Nieh TG, Wadsworth D, Sherby OD (1997) Superplasticity in metals and ceramics. Cambridge University Press, CambridgeCrossRef Nieh TG, Wadsworth D, Sherby OD (1997) Superplasticity in metals and ceramics. Cambridge University Press, CambridgeCrossRef
61.
Zurück zum Zitat Chuvil’deev VN, Kopylov VI, Nokhrin AV, Lopatin YuG, Kozlova NA, Tabachkova NYu, Semenycheva AV, Smirnova ES, Gryaznov MYu, Pirozhnikova OE (2015) The effect of the state of grain boundaries on the thermal stability of the structure of a submicrocrystalline titanium alloy. Tech Phys Lett 41(6):515–518. https://doi.org/10.1134/S1063785015060024 CrossRef Chuvil’deev VN, Kopylov VI, Nokhrin AV, Lopatin YuG, Kozlova NA, Tabachkova NYu, Semenycheva AV, Smirnova ES, Gryaznov MYu, Pirozhnikova OE (2015) The effect of the state of grain boundaries on the thermal stability of the structure of a submicrocrystalline titanium alloy. Tech Phys Lett 41(6):515–518. https://​doi.​org/​10.​1134/​S106378501506002​4 CrossRef
Metadaten
Titel
Spark plasma sintering for high-speed diffusion bonding of the ultrafine-grained near-α Ti–5Al–2V alloy with high strength and corrosion resistance for nuclear engineering
verfasst von
Vladimir Nikolaevich Chuvil’deev
Aleksey Vladimirovich Nokhrin
Vladimir Ilyich Kopylov
Maksim Sergeevich Boldin
Mikhail Mikhaylovich Vostokov
Mikhail Yuryevich Gryaznov
Nataliya Yur’evna Tabachkova
Petr Tryaev
Publikationsdatum
21.08.2019
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 24/2019
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-019-03926-6

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