Effects of cold-drawing and low-temperature annealing on the sensing properties of NiTi alloys

Effects of cold-drawing and low-temperature annealing on the sensing properties of NiTi alloys

LI Yongji, LIN Jianping, XIAO Yao, MIN Junying

Abstract. As an intelligent material, NiTi alloy exhibits shape memory effect and superelasticity. Its electrical resistance varies with deformation, thus making NiTi alloy a potential sensing material. Linearity and sensitivity are the two principal characteristics of sensors. Linearity reveals the deviation of the actual resistance-strain response from an ideal straight line and sensitivity is the change in input required to generate a unit change in output. Though conventional polycrystalline NiTi alloys possess high sensitivity and large strain range, the non-linear resistance-strain responses were not negligible thus hindering their sensing application. It was found that cold-drawing combing with low-temperature annealing had affected the linearity, while the influence rules were not clear. The electrical resistance of the fabricated NiTi alloy wires with various areal reductions were measured during stretching, and the results shown that the cold-drawn and annealed NiTi alloys exhibited better linearity though with decreased sensitivity. This investigation provides foundation for subsequent research on improving or tailoring the sensing properties of NiTi alloys.

Keywords
NiTi Alloys, Cold-Drawing, Low-Temperature Annealing, Sensing Properties

Published online 4/19/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: LI Yongji, LIN Jianping, XIAO Yao, MIN Junying, Effects of cold-drawing and low-temperature annealing on the sensing properties of NiTi alloys, Materials Research Proceedings, Vol. 28, pp 429-436, 2023

DOI: https://doi.org/10.21741/9781644902479-47

The article was published as article 47 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] M. Sobczyk, S. Wiesenhütter, J.R. Noennig, T. Wallmersperger, Smart materials in architecture for actuator and sensor applications: A review, J. Intell. Mater. Syst. Struct. 33 (2022) 379-399. https://doi.org/10.1177/1045389X211027954
[2] N. Gangil, A.N. Siddiquee, S. Maheshwari, Towards applications, processing and advancements in shape memory alloy and its composites, J. Manuf. Process. 59 (2020) 205-222. https://doi.org/10.1016/j.jmapro.2020.09.048
[3] Y. Chen, O. Tyc, L. Kadeřávek, O. Molnárová, L. Heller, P. Šittner, Temperature and microstructure dependence of localized tensile deformation of superelastic NiTi wires, Mater. Des. 174 (2019) 107797. https://doi.org/10.1016/j.matdes.2019.107797
[4] S. Sławski, M. Kciuk, W. Klein, Change in Electrical Resistance of SMA (NiTi) Wires during Cyclic Stretching, Sensors 22 (2022) 3584. https://doi.org/10.3390/s22093584
[5] N. Michaelis, F. Welsch, S.-M. Kirsch, S. Seelecke, A. Schütze, Resistance monitoring of shape memory material stabilization during elastocaloric training, Smart Mater. Struct. 28 (2019) 105046. https://doi.org/10.1088/1361-665X/ab3d62
[6] A. Gurley, T.R. Lambert, D. Beale, R. Broughton, Dual measurement self-sensing technique of NiTi actuators for use in robust control, Smart Mater. Struct. 26 (2017) 105050. https://doi.org/10.1088/1361-665X/aa8b42
[7] H. Lin, P. Hua, Q. Sun, Effects of grain size and partial amorphization on elastocaloric cooling performance of nanostructured NiTi, Scripta Mater. 209 (2022) 114371. https://doi.org/10.1016/j.scriptamat.2021.114371
[8] P. Hua, M. Xia, Y. Onuki, Q. Sun, Nanocomposite NiTi shape memory alloy with high strength and fatigue resistance, Nat. Nanotechnol. 16 (2021) 409-413. https://doi.org/10.1038/s41565-020-00837-5
[9] M. Barati, S.A. Chirani, M. Kadkhodaei, L. Saint-Sulpice, S. Calloch, On the origin of residual strain in shape memory alloys: experimental investigation on evolutions in the microstructure of CuAlBe during complex thermomechanical loadings, Smart Mater. Struct. 26 (2017) 25024. https://doi.org/10.1088/1361-665X/aa5745
[10] A. Ahadi, Q. Sun, Stress-induced nanoscale phase transition in superelastic NiTi by in situ X-ray diffraction, Acta Mater. 90 (2015) 272–281. https://doi.org/10.1016/j.actamat.2015.02.024
[11] Y. Zhang, S. Jiang, M. Wang, Atomistic investigation on superelasticity of NiTi shape memory alloy with complex microstructures based on molecular dynamics simulation, Int. J. Plast. 125 (2020) 27-51. https://doi.org/10.1016/j.ijplas.2019.09.001