Please use this identifier to cite or link to this item:
|Title:||Specific features of deformation of the nitinol alloy after electrolytic hydrogenation.|
|Authors:||Nykyforchyn, H. M.|
Iasnii, V. P.
|Affiliation:||Pulyui Ternopil’ National Technical UniversityTernopilUkraine|
Karpenko Physicomechanical InstituteUkrainian National Academy of SciencesLvivUkraine
|Bibliographic description (Ukraine):||V.P. Iasnii, H.M. Nykyforchyn, O.T. Tsyrul’nyk, O.Z. Student. Specific features of deformation of the nitinol alloy after electrolytic hydrogenation. Materials Science. – 2019. – 54, № 4. – pp. 582–588.|
|Keywords:||Ni–Ti alloy, electrolytic hydrogenation, tensile loading, deformation behavior.|
|Abstract:||Specific features of the effect of hydrogenation on the susceptibility of a Ni–Ti alloy with shape memory to deformation are determined with the use of metallographic, electrochemical, and mechanical studies. Three sections are detected in the tensile curves of the specimens of nickel–titanium alloy in the initial state. The first section is linear due to the elastic deformation of the alloy with initial austenitic struc-ture. The second section is nonlinear and associated with pseudoelastic structural transformations of the original austenitic structure into a martensitic structure. The third section is also linear and caused by the elastic deformation of martensite formed in the course of deformation of austenite. After hydro-genation of the Ni–Ti alloy, the pseudoelastic structural transformation starts at a somewhat lower level of stresses than without hydrogenation. In this case, the specimens are destroyed after the termination of this transformation for a much lower level of plasticity than in the nonhydrogenated alloy. It is assumed that the electrolytic hydrogenation of the alloy promotes the formation of a very brittle hydride phase on the surface of Ti-type inclusions revealed in the structure of alloy in the initial state. Its thickness is determined by the duration of the process of hydrogenation rather than by the current used for hydro-genation.|
|URL for reference material:||https://link.springer.com/article/10.1007/s11003-019-00221-2|
|References (International):||1. P. Iasnii and V. Iasnii, Damping Unit for the Transportation of Large-Size Structures [in Ukrainian], Patent 116582 Ukraine MPK F16F 7/12, Publ. on 25.05.2017; Bull. No. 10.|
2. Y. Oshida, R. Sachdeva, Sh. Miyazaki, and S. Fukuyo, “Biological and chemical evaluation of Ti-Ni alloys,” Martens. Transform. Trans. Tech. Publ.,56, 705–710 (1991).
3. Z. Lekston, J. Drugacz, and H. Morawiec, “Application of superelastic NiTi wires for mandibular distraction,” Mater. Sci. Eng. A,378, Nos. 1–2, 537–541 (2004).
4. G. Rondelli, “Corrosion resistance tests on NiTi shape memory alloy,” Biomaterials,17, 2003–2008 (1996).
5. H. Ma, T. Wilkinson, and C. Cho, “Feasibility study on a self-centering beam-to-column connection by using the superelastic be-havior of SMAs,” Smart Mater. Struct.,16, No. 5, 1555–1563 (2007).
6. A. Isalgue, F. C. Lovey, P. Terriault, F. Martorell, R. M. Torra, and V. Torra, “SMA for dampers in civil engineering,” Mater. Trans.,47, No. 3, 682–690 (2006).
7. H. Ma and M. C. H. Yam, “Modeling of a self-centering damper and its application in structural control,” J. Constr. Steel Res.,67, No. 4, 656–666 (2011).
8. V. Torra, C. Auyuet, G. Carreras, L. Dieng, F. C. Lovey, and P. Terriault, “The SMA: An effective damper in civil engineering that smoothes oscillations,” Mater. Sci. Forum,706–709, 2020–2025 (2012).
9. P. Yasniy, M. Kolisnyk, O. Kononchuk, and V. Iasnii, “Calculation of constructive parameters of SMA damper,” Sci. J. TNTU,88, No. 4, 7–15 (2017).
10. G. Kauffman and I. Mayo, “The story of Nitinol: the serendipitous discovery of the memory metal and its applications,” Chem. Educ.,2, No. 2, 1–21 (1997).
11. V. P. Iasnii and R. Junga, “Phase transformations and mechanical properties of the Nitinol alloy with shape memory,” Fiz.-Khim. Mekh. Mater.,54, No. 3, 107–111 (2018).
12. D. J. Hartl and D. C. Lagoudas, “Aerospace applications of shape memory alloys,” Proc. of the Inst. Mech. Eng.: J. Aerospace Eng.,221, Part G, 535–582 (2007).
13. A. L. Quintanilla, Shape Memory Alloys, Dissertation, Delft Univ. of Technology (2016).
14. F. Gamaoun, I. Skhiri, T. Bouraoui, and T. Ben Zineb, “Hydrogen effect on the austenite–martensite transformation of the cycled Ni–Ti alloy,” J. Intellig. Mater. Syst. Struct.,25, No. 8, 980–988 (2014).
15. I. Kireeva, Yu. Platonova, and Yu. Chumlyakov, “Effect of hydrogen on the two-way shape memory effect in TiNi single crystals,” Mater. Today,4,No. 3, Part B, 4773–4777 (2017).
16. J. Sheriff, A. R. Pelton, and R. A. Pruitt, “Hydrogen effects on Nitinol fatigue,” in: Proc. In ternat. Conf. on Shape Memory and Superelastic Technologies,SMST-2004, M. Mertman (editor) , ASM International, Baden-Baden (2004), pp. 111–119.
17. K. Yokoyama, T. Ogawa, K. Asaoka, J. Sakai, and M. Nagumo, “Degradation of tensile strength of Ni–Ti superelastic alloy due to hydrogen absorption in methanol solution containing hydrochloric acid,” Mater. Sci. Eng.: A,360, Nos. 1–2, 153–159 (2003).
18. K. Kaneko, K. Yokoyama, K. Moriyama, K. Asaoka, and J. Sakai, “Degradation in the performance of orthodontic wires caused by hydrogen absorption during short-term immersion in 2.0% acidulated phosphate fluoride solution,” Angle Orthodontist,74, No. 4, 487–495 (2004).
19. K. Yokoyama, K. Kaneko, K. Moriyama, K. Asaoka, J. Sakai, and M. Nagumo, “Hydrogen embrittlement of Ni-Ti superelastic alloy in fluoride solution,” J. Biomed. Mater. Res.,65A, 182–187 (2003).
20. V. N. Kudiyarov, A. M. Lider, N. S. Pushilina, and N. A. Timchenko, “Specific features of the accumulation and distribution of hy-drogen in the course of saturation of VT1-0 titanium alloy by the electrolytic method and from a gas atmosphere,” Zh. Tekh. Fiz.,84, Issue 9, 117–121 (2014). 21. V. I. Pokhmurs’kyi and V. V. Fedorov, Influence of Hydrogen on the Diffusion in Metals [in Ukrainian], Enei, Lviv (1998).
21. V. I. Pokhmurs’kyi and V. V. Fedorov, Influence of Hydrogen on the Diffusion in Metals [in Ukrainian], Enei, Lviv (1998).
|Appears in Collections:||Навчальні матеріали кафедри будівельної механіки|
Files in This Item:
|Iasnii2019_Article_SpecificFeaturesOfDeformationO.pdf||2,11 MB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.