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Volume 12
Issue 9
10.3390/met12091476
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Article

TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results

by
Eduard Farber
*,
Alexey Orlov
,
Evgenii Borisov
,
Arseniy Repnin
,
Stepan Kuzin
,
Nikita Golubkov
and
Anatoly Popovich
Institute of Machinery, Materials, and Transport, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya, 29, 195251 Saint Petersburg, Russia
*
Author to whom correspondence should be addressed.
Metals 2022, 12(9), 1476; https://doi.org/10.3390/met12091476
Submission received: 12 August 2022 / Revised: 31 August 2022 / Accepted: 1 September 2022 / Published: 4 September 2022
(This article belongs to the Special Issue Advanced Manufacturing of Novel Metallic Related Materials)
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Abstract

One of the issues that modern implants face is their high stiffness, coupled with a positive Poisson’s ratio along the implant. This creates certain problems with bone inflammation and implant detachment. A possible solution to these problems is TiNi alloy lattice structure implants with low stiffness and negative Poisson’s ratio. This paper presents the results of simulation, fabrication by the SLM technique, and study of lattice structures with negative Poisson’s ratio, which can help to solve said problems. The studies involve the determination of mechanical characteristics, Poisson’s ratio, transformation temperatures, and the potential for a superelasticity effect of the lattice structure. The characteristics obtained at initial simulation were partially confirmed in the course of the works. Moreover, the possibility of fabricating TiNi alloy lattice structures with negative Poisson’s ratio (about −0.00323) and low Young’s modulus values (0.818 GPa) was confirmed by the SLM technique.
Keywords: lattice structure; negative poisson’s ratio; nitinol; shape memory alloy; superelasticity lattice structure; negative poisson’s ratio; nitinol; shape memory alloy; superelasticity

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MDPI and ACS Style

Farber, E.; Orlov, A.; Borisov, E.; Repnin, A.; Kuzin, S.; Golubkov, N.; Popovich, A. TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results. Metals 2022, 12, 1476. https://doi.org/10.3390/met12091476

AMA Style

Farber E, Orlov A, Borisov E, Repnin A, Kuzin S, Golubkov N, Popovich A. TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results. Metals. 2022; 12(9):1476. https://doi.org/10.3390/met12091476

Chicago/Turabian Style

Farber, Eduard, Alexey Orlov, Evgenii Borisov, Arseniy Repnin, Stepan Kuzin, Nikita Golubkov, and Anatoly Popovich. 2022. "TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results" Metals 12, no. 9: 1476. https://doi.org/10.3390/met12091476

APA Style

Farber, E., Orlov, A., Borisov, E., Repnin, A., Kuzin, S., Golubkov, N., & Popovich, A. (2022). TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results. Metals, 12(9), 1476. https://doi.org/10.3390/met12091476

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