Tunable shape memory effect and superelasticity in Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires

Xiaolong Ma; Xueying Wang; Ziyue Zhang; Wentao Qu; Huilong Hou; Qiquan Li; Yan Li

doi:10.1016/j.jmrt.2025.10.221

Tunable shape memory effect and superelasticity in Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires

Xiaolong Ma
, Xueying Wang
, Ziyue Zhang
, Wentao Qu
, Huilong Hou
, Qiquan Li^*
, Yan Li^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The Ti-19.5Zr-10Nb-0.5Fe shape memory alloy (SMA) wires were prepared based on industrial-grade alloy ingot weighing 50 kg using the self-consumable arc melting. Studies were conducted to examine the microstructures and shape memory behavior of the alloy wires associated with different cooling treatments after annealing. The air-cooling samples are determinated to β phase, which exhibit a maximum superelastic recovery strain of 3.7 % with a critical stress of 400 MPa for stress-induced martensite transformation (SIMT). For the water quenched samples, martensite coexists with β matrix in room temperature. The martensite deformation mainly occurs upon loading and a shape memory recovery strain of 2.4 % was finally obtained. Therefore, tunable shape memory effect and superelasticity have been obtained in the Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires.

Original language	English
Pages (from-to)	5480-5486
Number of pages	7
Journal	Journal of Materials Research and Technology
Volume	39
DOIs	https://doi.org/10.1016/j.jmrt.2025.10.221
Publication status	Published - 1 Nov 2025
Externally published	Yes

Keywords

Martensite
Shape memory effect
Superelasticity
Ti-Zr-Nb-Fe

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10.1016/j.jmrt.2025.10.221

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@article{19197f630b6a4324b035ac9f1c65489b,

title = "Tunable shape memory effect and superelasticity in Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires",

abstract = "The Ti-19.5Zr-10Nb-0.5Fe shape memory alloy (SMA) wires were prepared based on industrial-grade alloy ingot weighing 50 kg using the self-consumable arc melting. Studies were conducted to examine the microstructures and shape memory behavior of the alloy wires associated with different cooling treatments after annealing. The air-cooling samples are determinated to β phase, which exhibit a maximum superelastic recovery strain of 3.7 \% with a critical stress of 400 MPa for stress-induced martensite transformation (SIMT). For the water quenched samples, martensite coexists with β matrix in room temperature. The martensite deformation mainly occurs upon loading and a shape memory recovery strain of 2.4 \% was finally obtained. Therefore, tunable shape memory effect and superelasticity have been obtained in the Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires.",

keywords = "Martensite, Shape memory effect, Superelasticity, Ti-Zr-Nb-Fe",

author = "Xiaolong Ma and Xueying Wang and Ziyue Zhang and Wentao Qu and Huilong Hou and Qiquan Li and Yan Li",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors.",

year = "2025",

month = nov,

day = "1",

doi = "10.1016/j.jmrt.2025.10.221",

language = "English",

volume = "39",

pages = "5480--5486",

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TY - JOUR

T1 - Tunable shape memory effect and superelasticity in Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires

AU - Ma, Xiaolong

AU - Wang, Xueying

AU - Zhang, Ziyue

AU - Qu, Wentao

AU - Hou, Huilong

AU - Li, Qiquan

AU - Li, Yan

PY - 2025/11/1

Y1 - 2025/11/1

N2 - The Ti-19.5Zr-10Nb-0.5Fe shape memory alloy (SMA) wires were prepared based on industrial-grade alloy ingot weighing 50 kg using the self-consumable arc melting. Studies were conducted to examine the microstructures and shape memory behavior of the alloy wires associated with different cooling treatments after annealing. The air-cooling samples are determinated to β phase, which exhibit a maximum superelastic recovery strain of 3.7 % with a critical stress of 400 MPa for stress-induced martensite transformation (SIMT). For the water quenched samples, martensite coexists with β matrix in room temperature. The martensite deformation mainly occurs upon loading and a shape memory recovery strain of 2.4 % was finally obtained. Therefore, tunable shape memory effect and superelasticity have been obtained in the Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires.

AB - The Ti-19.5Zr-10Nb-0.5Fe shape memory alloy (SMA) wires were prepared based on industrial-grade alloy ingot weighing 50 kg using the self-consumable arc melting. Studies were conducted to examine the microstructures and shape memory behavior of the alloy wires associated with different cooling treatments after annealing. The air-cooling samples are determinated to β phase, which exhibit a maximum superelastic recovery strain of 3.7 % with a critical stress of 400 MPa for stress-induced martensite transformation (SIMT). For the water quenched samples, martensite coexists with β matrix in room temperature. The martensite deformation mainly occurs upon loading and a shape memory recovery strain of 2.4 % was finally obtained. Therefore, tunable shape memory effect and superelasticity have been obtained in the Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires.

KW - Martensite

KW - Shape memory effect

KW - Superelasticity

KW - Ti-Zr-Nb-Fe

UR - https://www.scopus.com/pages/publications/105020987637

U2 - 10.1016/j.jmrt.2025.10.221

DO - 10.1016/j.jmrt.2025.10.221

M3 - Article

AN - SCOPUS:105020987637

SN - 2238-7854

VL - 39

SP - 5480

EP - 5486

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Tunable shape memory effect and superelasticity in Ti-19.5Zr-10Nb-0.5Fe shape memory alloy wires

Abstract

Keywords

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