Microstructure and Shape Memory Behavior of Ti–Nb Shape Memory Alloy Thin Film

X. L. Meng; B. Sun; J. Y. Sun; Z. Y. Gao; W. Cai; L. C. Zhao

doi:10.1007/s40830-017-0104-5

Microstructure and Shape Memory Behavior of Ti–Nb Shape Memory Alloy Thin Film

X. L. Meng^*
, B. Sun
, J. Y. Sun
, Z. Y. Gao
, W. Cai
, L. C. Zhao

^*Corresponding author for this work

Harbin Institute of Technology

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

9 Scopus citations

Abstract

Ti–Nb shape memory alloy (SMA) thin film is a promising candidate applied as microactuator in biomedical field. In this study, the microstructure and shape memory behavior of Ti–Nb SMA thin films in different heat treatment conditions have been investigated. Fine ω phases embedded in the β phase matrix suppress the martensitic transformation of the films. As a result, the as-deposited and most of the annealed films consist of the β and α″ dual phases. The annealed Ti–Nb thin film shows excellent superelasticity effect when deformed above the reverse martensitic transformation temperature, that is 3.5% total recovery strain can be obtained when 4% pre-strain is loaded.

Original language	English
Pages (from-to)	230-237
Number of pages	8
Journal	Shape Memory and Superelasticity
Volume	3
Issue number	3
DOIs	https://doi.org/10.1007/s40830-017-0104-5
State	Published - 1 Sep 2017
Externally published	Yes

Keywords

Microstructure
Shape memory alloy (SMA)
Shape memory effect (SME)
Ti–Nb thin film

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10.1007/s40830-017-0104-5

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title = "Microstructure and Shape Memory Behavior of Ti–Nb Shape Memory Alloy Thin Film",

abstract = "Ti–Nb shape memory alloy (SMA) thin film is a promising candidate applied as microactuator in biomedical field. In this study, the microstructure and shape memory behavior of Ti–Nb SMA thin films in different heat treatment conditions have been investigated. Fine ω phases embedded in the β phase matrix suppress the martensitic transformation of the films. As a result, the as-deposited and most of the annealed films consist of the β and α″ dual phases. The annealed Ti–Nb thin film shows excellent superelasticity effect when deformed above the reverse martensitic transformation temperature, that is 3.5\% total recovery strain can be obtained when 4\% pre-strain is loaded.",

keywords = "Microstructure, Shape memory alloy (SMA), Shape memory effect (SME), Ti–Nb thin film",

author = "Meng, \{X. L.\} and B. Sun and Sun, \{J. Y.\} and Gao, \{Z. Y.\} and W. Cai and Zhao, \{L. C.\}",

note = "Publisher Copyright: {\textcopyright} 2017, ASM International.",

year = "2017",

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doi = "10.1007/s40830-017-0104-5",

language = "英语",

volume = "3",

pages = "230--237",

journal = "Shape Memory and Superelasticity",

issn = "2199-384X",

publisher = "Springer US",

number = "3",

}

TY - JOUR

T1 - Microstructure and Shape Memory Behavior of Ti–Nb Shape Memory Alloy Thin Film

AU - Meng, X. L.

AU - Sun, B.

AU - Sun, J. Y.

AU - Gao, Z. Y.

AU - Cai, W.

AU - Zhao, L. C.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Ti–Nb shape memory alloy (SMA) thin film is a promising candidate applied as microactuator in biomedical field. In this study, the microstructure and shape memory behavior of Ti–Nb SMA thin films in different heat treatment conditions have been investigated. Fine ω phases embedded in the β phase matrix suppress the martensitic transformation of the films. As a result, the as-deposited and most of the annealed films consist of the β and α″ dual phases. The annealed Ti–Nb thin film shows excellent superelasticity effect when deformed above the reverse martensitic transformation temperature, that is 3.5% total recovery strain can be obtained when 4% pre-strain is loaded.

AB - Ti–Nb shape memory alloy (SMA) thin film is a promising candidate applied as microactuator in biomedical field. In this study, the microstructure and shape memory behavior of Ti–Nb SMA thin films in different heat treatment conditions have been investigated. Fine ω phases embedded in the β phase matrix suppress the martensitic transformation of the films. As a result, the as-deposited and most of the annealed films consist of the β and α″ dual phases. The annealed Ti–Nb thin film shows excellent superelasticity effect when deformed above the reverse martensitic transformation temperature, that is 3.5% total recovery strain can be obtained when 4% pre-strain is loaded.

KW - Microstructure

KW - Shape memory alloy (SMA)

KW - Shape memory effect (SME)

KW - Ti–Nb thin film

UR - https://www.scopus.com/pages/publications/85050562404

U2 - 10.1007/s40830-017-0104-5

DO - 10.1007/s40830-017-0104-5

M3 - 文章

AN - SCOPUS:85050562404

SN - 2199-384X

VL - 3

SP - 230

EP - 237

JO - Shape Memory and Superelasticity

JF - Shape Memory and Superelasticity

IS - 3

ER -

Microstructure and Shape Memory Behavior of Ti–Nb Shape Memory Alloy Thin Film

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Keywords

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