Special Aspects of Microstructure, Deformation and Fracture of Bioinert Zirconium and Titanium-Niobium Alloys in Different Structural States

Abstract

The characteristics of microstructure, deformation and fracture of Zr – 1 wt% Nb and Ti – 45 wt% Nb bioinert alloys in the coarse- and ultrafine-grained states are investigated. It is shown that the ultrafine-grained structure formed in them ensures excellent mechanical properties of the alloys and affects the stages of the stress-strain curves and the behavior of the maximum temperature vs. deformation time plot. The formation of an α-phase in the Ti – 45 wt% Nb ultrafine-grained alloy suppresses the linear stage VI characterized by a constant strain hardening coefficient. In stage VII, the strain hardening coefficient rapidly becomes negative, which indicates the material softening prior to its failure.

Original language	English
Pages (from-to)	1718-1725
Number of pages	8
Journal	Russian Physics Journal
Volume	61
Issue number	9
DOIs	https://doi.org/10.1007/s11182-018-1592-2
Publication status	Published - 1 Jan 2019

Keywords

fracture
IR-imaging
strain hardening coefficient
stress-strain plots
ultrafine-grained structure
Zr – 1 wt% Nb and Ti – 45 wt% Nb alloys

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1007/s11182-018-1592-2

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Sharkeev, Y. P., Skripnyak, V. V., Vavilov, V. P., Legostaeva, E. V., Kozulin, A. A., Chulkov, A. O., Eroshenko, A. Y., Belyavskaya, O. A., Skripnyak, V. V., & Glukhov, I. A. (2019). Special Aspects of Microstructure, Deformation and Fracture of Bioinert Zirconium and Titanium-Niobium Alloys in Different Structural States. Russian Physics Journal, 61(9), 1718-1725. https://doi.org/10.1007/s11182-018-1592-2

Special Aspects of Microstructure, Deformation and Fracture of Bioinert Zirconium and Titanium-Niobium Alloys in Different Structural States. / Sharkeev, Yu P.; Skripnyak, V. V.; Vavilov, V. P.; Legostaeva, E. V.; Kozulin, A. A.; Chulkov, A. O.; Eroshenko, A. Yu; Belyavskaya, O. A.; Skripnyak, V. V.; Glukhov, I. A.

In: Russian Physics Journal, Vol. 61, No. 9, 01.01.2019, p. 1718-1725.

Research output: Contribution to journal › Article › peer-review

Sharkeev, YP, Skripnyak, VV, Vavilov, VP, Legostaeva, EV, Kozulin, AA, Chulkov, AO, Eroshenko, AY, Belyavskaya, OA, Skripnyak, VV & Glukhov, IA 2019, 'Special Aspects of Microstructure, Deformation and Fracture of Bioinert Zirconium and Titanium-Niobium Alloys in Different Structural States', Russian Physics Journal, vol. 61, no. 9, pp. 1718-1725. https://doi.org/10.1007/s11182-018-1592-2

Sharkeev, Yu P. ; Skripnyak, V. V. ; Vavilov, V. P. ; Legostaeva, E. V. ; Kozulin, A. A. ; Chulkov, A. O. ; Eroshenko, A. Yu ; Belyavskaya, O. A. ; Skripnyak, V. V. ; Glukhov, I. A. / Special Aspects of Microstructure, Deformation and Fracture of Bioinert Zirconium and Titanium-Niobium Alloys in Different Structural States. In: Russian Physics Journal. 2019 ; Vol. 61, No. 9. pp. 1718-1725.

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abstract = "The characteristics of microstructure, deformation and fracture of Zr – 1 wt% Nb and Ti – 45 wt% Nb bioinert alloys in the coarse- and ultrafine-grained states are investigated. It is shown that the ultrafine-grained structure formed in them ensures excellent mechanical properties of the alloys and affects the stages of the stress-strain curves and the behavior of the maximum temperature vs. deformation time plot. The formation of an α-phase in the Ti – 45 wt% Nb ultrafine-grained alloy suppresses the linear stage VI characterized by a constant strain hardening coefficient. In stage VII, the strain hardening coefficient rapidly becomes negative, which indicates the material softening prior to its failure.",

keywords = "fracture, IR-imaging, strain hardening coefficient, stress-strain plots, ultrafine-grained structure, Zr – 1 wt% Nb and Ti – 45 wt% Nb alloys",

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AU - Chulkov, A. O.

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AB - The characteristics of microstructure, deformation and fracture of Zr – 1 wt% Nb and Ti – 45 wt% Nb bioinert alloys in the coarse- and ultrafine-grained states are investigated. It is shown that the ultrafine-grained structure formed in them ensures excellent mechanical properties of the alloys and affects the stages of the stress-strain curves and the behavior of the maximum temperature vs. deformation time plot. The formation of an α-phase in the Ti – 45 wt% Nb ultrafine-grained alloy suppresses the linear stage VI characterized by a constant strain hardening coefficient. In stage VII, the strain hardening coefficient rapidly becomes negative, which indicates the material softening prior to its failure.

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KW - strain hardening coefficient

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