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 | |
| Publication status | Published - 1 Jan 2019 |
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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)
Cite this
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
}
TY - JOUR
T1 - Special Aspects of Microstructure, Deformation and Fracture of Bioinert Zirconium and Titanium-Niobium Alloys in Different Structural States
AU - Sharkeev, Yu P.
AU - Skripnyak, V. V.
AU - Vavilov, V. P.
AU - Legostaeva, E. V.
AU - Kozulin, A. A.
AU - Chulkov, A. O.
AU - Eroshenko, A. Yu
AU - Belyavskaya, O. A.
AU - Skripnyak, V. V.
AU - Glukhov, I. A.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - 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.
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.
KW - fracture
KW - IR-imaging
KW - strain hardening coefficient
KW - stress-strain plots
KW - ultrafine-grained structure
KW - Zr – 1 wt% Nb and Ti – 45 wt% Nb alloys
UR - http://www.scopus.com/inward/record.url?scp=85059104189&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059104189&partnerID=8YFLogxK
U2 - 10.1007/s11182-018-1592-2
DO - 10.1007/s11182-018-1592-2
M3 - Article
VL - 61
SP - 1718
EP - 1725
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 9
ER -