Structural-Phase State, Mechanical and Inelastic Properties of Ti49.8Ni50.2 Alloy after Severe Plastic Deformation by abc Pressing at 573 K
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Abstract
Abstract The structural-phase state, mechanical and inelastic properties of Ti49.8Ni50.2 alloy after severe plastic deformation by abc pressing at 573 K were investigated. It was found that abc pressing of the Ti49.8Ni50.2 alloy specimens at a relatively low temperature (573 K) to high true strain (e = 7.43) did not affect the start temperature of B2→R martensite transformation (MT). At the same time, the start and finish temperatures of direct MT to the B19' phase and reverse MT decreased by only 14 ± 2 degrees. After abc pressing at 573 K to е = 7.43, the martensitic shear stress τm sharply decreased (from 230 MPa to 100 MPa), and the pseudo-yield plateau significantly shortened (from 7.5 to 3.5%). In addition, the stress of transition from the strain hardening stage to the active plastic deformation stage sharply increased (from 835 to 1300 MPa). It was found that the dependences of the shape memory effect γSME, superelasticity γSE, and plastic strain component γpl on the total strain γt both in the initial state and after abc pressing had a similar pattern and were close in magnitude. It was shown that abc pressing to e = 7.43 induced the total inelastic strain γTIS = γSE + γSME of about 8% in the specimens, which recovered after unloading due to the superelasticity and shape memory effects.
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OpenAlex topics: Shape Memory Alloy Transformations · Intermetallics and Advanced Alloy Properties · Microstructure and mechanical properties
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References (23)
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1. Estrin, Y. and Vinogradov, A., Extreme grain refinement by severe plastic deformation: A wealth of challenging science, Acta Materialia, 2013, vol. 61. pp. 2782–2817. https://doi.org/10.1016/j.actamat.2012.10.03810.1016/j.actamat.2012.10.038 ↗
2. Ovid’ko, I.A., Valiev, R.Z., and Zhu, Y.T., Review on superior strength and enhanced ductility of metallic nanomaterials, Progress in Materials Science, 2018, vol. 94, pp. 462–540. https://doi.org/10.1016/j.pmatsci.2018.02.00210.1016/j.pmatsci.2018.02.002 ↗
3. Bagherpour, E., Pardis, N., Reihanian, M., and Ebrahimi, R., An overview on severe plastic deformation: research status, techniques classification, microstructure evolution, and applications, International Journal of Advanced Manufacturing Technology, 2019, vol. 100, pp. 1647–1694. https://doi.org/10.1007/s00170-018-2652-z10.1007/s00170-018-2652-z ↗
4. Usmanov, E.I., Rezyapova, L.R., and Valiev, R.Z., High-Strength State and Strengthening Mechanisms of Ultrafine-Grained Titanium, Physical Mesomechanics, 2023, vol. 26, no. 5, pp. 483–494. https://doi.org/10.1134/S102995992305001610.1134/S1029959923050016 ↗
5. Lowe, T.C., Valiev, R.Z., Li, X., and Ewing, B.R., Commercialization of bulk nanostructured metals and alloys, MRS Bulletin, 2021, vol. 46, pp. 265–272. https://doi.org/10.1557/s43577-021-00060-010.1557/s43577-021-00060-0 ↗
6. Mironov, S.Yu., Salishchev, G.A., Myshlyaev, M.M., and Pippan, R., Evolution of misorientation distribution during warm “abc” forging of commercial-purity titanium, Materials Science and Engineering: A, 2006, vol. 418, pp. 257–267. https://doi.org/10.1016/j.msea.2005.11.02610.1016/j.msea.2005.11.026 ↗
7. Kashin, O., Lotkov, A.I., Grishkov, V., Krukovskii, K., Zhapova, D., Mironov, Y., Girsova, N., Kashina, O., and Barmina, E., Effect of abc Pressing at 573 K on the Microstructure and Martensite Transformation Temperatures in Ti49.8Ni50.2(at.%), Metals, 2021, vol. 11, p. 1145. https://doi.org/10.3390/met1107114510.3390/met11071145 ↗
8. Kashin, O., Krukovskii, K., Lotkov, A., and Grishkov, V., Effect of True Strains in Isothermal abc Pressing on Mechanical Properties of Ti49.8Ni50.2 Alloy, Metals, 2020, vol. 10, p. 1313. https://doi.org/10.3390/met1010131310.3390/met10101313 ↗
9. Lotkov, A., Kashin, O., Grishkov, V., Zhapova, D., Krukovskii, K., Gusarenko, A., Girsova, N., Bobrov, D., and Kashina, O., Mechanical Properties of the Ti49.8Ni50.2 Alloy after Multi-Axial Forging at 573 K, Metals, 2022, vol. 12, p. 1043. https://doi.org/10.3390/met1206104310.3390/met12061043 ↗
10. Jani, M., Leary, M., Subic, A., and Gibson, M.A., A review of shape memory alloy research, applications and opportunities, Materials Design, 2014, vol. 56, pp. 1078–1113. https://doi.org/10.1016/j.matdes.2013.11.08410.1016/j.matdes.2013.11.084 ↗
11. Wadood, A., Brief Overview on Nitinol as Biomaterial, Advances in Materials Science and Engineering, 2016, vol. 2016, p. 9. https://doi.org/10.1155/2016/417313810.1155/2016/4173138 ↗
12. O'Brien, B., Weafer, F.M., and Bruzzi, M.S., Shape memory alloys for use in medicine, Comprehensive Biomaterials, 2017, vol. II, no. 1, pp. 50–78. https://doi.org/10.1016/B978-0-08-055294-1.00014-310.1016/B978-0-08-055294-1.00014-3 ↗
13. Prokoshkin, S.D., Brailovski, V., Inaekyan, K.E., Demers, V., Khmelevskaya, I.Y., Dobatkin, S.V., and Tatyanin, E.V., Structure and properties of severely cold-rolled and annealed Ti-Ni shape memory alloys, Materials Science and Engineering: A, 2008, vol. 481–482, pp. 114–118. https://doi.org/10.1016/j.msea.2007.02.15010.1016/j.msea.2007.02.150 ↗
14. Jiang, S., Zhang, Y., Zhao, L., and Zheng, Y., Influence of annealing on NiTi shape memory alloy subjected to severe plastic deformation, Intermetallics, 2013, vol. 32, pp. 344–351. https://doi.org/10.1016/j.intermet.2012.07.02510.1016/j.intermet.2012.07.025 ↗
15. Ahadi, A. and Sun, Q., Effects of grain size on the rate-dependent thermomechanical responses of nanostructured superelastic NiTi, Acta Materialia, 2014, vol. 76, pp. 186–197. https://doi.org/10.1016/j.actamat.2014.05.00710.1016/j.actamat.2014.05.007 ↗
16. Yan, B., Jiang, S., Sun, D., Wang, M., Yu, J., and Zhang, Y., Martensite twin formation and mechanical properties of B2 austenite NiTi shape memory alloy undergoing severe plastic deformation and subsequent annealing, Materials Characterization, 2021, vol. 178, p. 111273. https://doi.org/10.1016/j.matchar.2021.11127310.1016/j.matchar.2021.111273 ↗
17. Polyakova, K.A. and Komarov, V.S., Effect of Annealing Temperature and Time on Martensitic Transformation Temperatures and Mechanical Properties of the Ti–50.7 at % Ni Shape Memory Alloy, Russian Journal of Non-Ferrous Metals, 2021, vol. 62, pp. 531–538. https://doi.org/10.3103/S106782122105011410.3103/S1067821221050114 ↗
18. Sakai, T., Belyakov, A., Kaibyshev, R., Miura, H., and Jonas, J.J., Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions, Progress in Materials Science, 2014, vol. 60, pp. 130–207. https://doi.org/10.1016/j.pmatsci.2013.09.00210.1016/j.pmatsci.2013.09.002 ↗
19. Lotkov, A.I., Grishkov, V.N., Kashin, O.A., Baturin, A.A., Zhapova, D.Yu. and Timkin, V.N., Mechanisms of microstructure evolution in TiNi–based alloys under warm deformation and its effect on martensitic transformations, In Shape Memory Alloys: Properties, Technologies, Opportunities, Materials Science Foundation (eds. Rubanic, V.V. and Resnina, N.N.), Trans Tech. Publication, Switzerland, 2015, pp. 245–259.10.4028/www.scientific.net/MSFo.81-82.245 ↗
20. Grishkov, V.N., Lotkov, A.I., Baturin, A.A., Timkin, V.N., and Zhapova, D.Yu., Comparative analysis of inelastic strain recovery and plastic deformation in Ti49.1Ni50.9 (at.%) alloy under torsion and bending, AIP Conference Proceedings, 2015, vol. 1683, p. 020067–1–020067–5. https://doi.org/10.1063/1.493275710.1063/1.4932757 ↗
21. Padmanadhan, K.A., Vasin, R.A., and Enikeev, F.V., Superplastic Flow: Phenomenology and Mechanics, Springer Berlin, Heidelberg, 2001. https://doi.org/10.1007/978-3-662-04367-710.1007/978-3-662-04367-7 ↗
22. Prokoshkin, S.D., Korotitskii, A.V., Brailovskii, V., Inaekyan, K.E., and Dubinskii, S.M., Crystal Lattice of Martensite and the Reserve of Recoverable Strain of Thermally and Thermomechanically Treated Ti–Ni Shape Memory Alloys, The Physics of Metals and Metallography, 2011, vol. 112, no. 2, pp. 170–187.10.1134/S0031918X11020244 ↗
23. Chumlyakov, Yu.I., Kireeva, I.V., Panchenko, E.Yu., and Timofeeva, E.E., Mechanism of Thermoelastic Martensitic Transformations in High-Strength Single Crystals of Iron-Based and Titanium Nickelide Alloys, NTL, Tomsk, 2016.