Microstructure evolution and strain recovery characteristic of proton-irradiated Ti-rich NiTi thin films

Xiaoyang Yi; Sibo Sun; Bin Sun; Yundong Zhao; Rui Ning; Shangzhou Zhang; Zhiyong Gao; Haizhen Wang; Wei Cai

doi:10.1016/j.pnsc.2021.10.004

Microstructure evolution and strain recovery characteristic of proton-irradiated Ti-rich NiTi thin films

Xiaoyang Yi
, Sibo Sun
, Bin Sun
, Yundong Zhao
, Rui Ning
, Shangzhou Zhang
, Zhiyong Gao^*
, Haizhen Wang^*
, Wei Cai

^*Corresponding author for this work

Harbin Institute of Technology
Yantai University
College of Materials Science and Chemical Engineering, Harbin Engineering University

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

5 Scopus citations

Abstract

The effect of 120 keV proton irradiation with different fluences on the phase constitution, microstructure, and shape recovery characteristics of Ni-51.4 at.%Ti shape memory alloy thin films was systematically investigated. The results showed that the proton irradiation induced the formation of a multiple-layer structure at the surface of NiTi thin film. Meanwhile, the hybrid defects such as vacancies, dislocations, and nano-scale precipitates were observed in the irradiation layer. The transition temperature and shape recovery strain decreased gradually with the increasing irradiation fluence, which can be attributed to the formation of the multilayer structure and the generation of irradiation-induced defects.

Original language	English
Pages (from-to)	72-78
Number of pages	7
Journal	Progress in Natural Science: Materials International
Volume	32
Issue number	1
DOIs	https://doi.org/10.1016/j.pnsc.2021.10.004
State	Published - Feb 2022
Externally published	Yes

Keywords

Martensitic transformation
NiTi alloy Film
Proton irradiation
Shape memory alloy
Shape recovery

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10.1016/j.pnsc.2021.10.004

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title = "Microstructure evolution and strain recovery characteristic of proton-irradiated Ti-rich NiTi thin films",

abstract = "The effect of 120 keV proton irradiation with different fluences on the phase constitution, microstructure, and shape recovery characteristics of Ni-51.4 at.\%Ti shape memory alloy thin films was systematically investigated. The results showed that the proton irradiation induced the formation of a multiple-layer structure at the surface of NiTi thin film. Meanwhile, the hybrid defects such as vacancies, dislocations, and nano-scale precipitates were observed in the irradiation layer. The transition temperature and shape recovery strain decreased gradually with the increasing irradiation fluence, which can be attributed to the formation of the multilayer structure and the generation of irradiation-induced defects.",

keywords = "Martensitic transformation, NiTi alloy Film, Proton irradiation, Shape memory alloy, Shape recovery",

author = "Xiaoyang Yi and Sibo Sun and Bin Sun and Yundong Zhao and Rui Ning and Shangzhou Zhang and Zhiyong Gao and Haizhen Wang and Wei Cai",

note = "Publisher Copyright: {\textcopyright} 2021 Chinese Materials Research Society",

year = "2022",

month = feb,

doi = "10.1016/j.pnsc.2021.10.004",

language = "英语",

volume = "32",

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TY - JOUR

T1 - Microstructure evolution and strain recovery characteristic of proton-irradiated Ti-rich NiTi thin films

AU - Yi, Xiaoyang

AU - Sun, Sibo

AU - Sun, Bin

AU - Zhao, Yundong

AU - Ning, Rui

AU - Zhang, Shangzhou

AU - Gao, Zhiyong

AU - Wang, Haizhen

AU - Cai, Wei

PY - 2022/2

Y1 - 2022/2

N2 - The effect of 120 keV proton irradiation with different fluences on the phase constitution, microstructure, and shape recovery characteristics of Ni-51.4 at.%Ti shape memory alloy thin films was systematically investigated. The results showed that the proton irradiation induced the formation of a multiple-layer structure at the surface of NiTi thin film. Meanwhile, the hybrid defects such as vacancies, dislocations, and nano-scale precipitates were observed in the irradiation layer. The transition temperature and shape recovery strain decreased gradually with the increasing irradiation fluence, which can be attributed to the formation of the multilayer structure and the generation of irradiation-induced defects.

AB - The effect of 120 keV proton irradiation with different fluences on the phase constitution, microstructure, and shape recovery characteristics of Ni-51.4 at.%Ti shape memory alloy thin films was systematically investigated. The results showed that the proton irradiation induced the formation of a multiple-layer structure at the surface of NiTi thin film. Meanwhile, the hybrid defects such as vacancies, dislocations, and nano-scale precipitates were observed in the irradiation layer. The transition temperature and shape recovery strain decreased gradually with the increasing irradiation fluence, which can be attributed to the formation of the multilayer structure and the generation of irradiation-induced defects.

KW - Martensitic transformation

KW - NiTi alloy Film

KW - Proton irradiation

KW - Shape memory alloy

KW - Shape recovery

UR - https://www.scopus.com/pages/publications/85116938003

U2 - 10.1016/j.pnsc.2021.10.004

DO - 10.1016/j.pnsc.2021.10.004

M3 - 文章

AN - SCOPUS:85116938003

SN - 1002-0071

VL - 32

SP - 72

EP - 78

JO - Progress in Natural Science: Materials International

JF - Progress in Natural Science: Materials International

IS - 1

ER -

Microstructure evolution and strain recovery characteristic of proton-irradiated Ti-rich NiTi thin films

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Keywords

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