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

被引：0

作者：

Xiaoyang Yi ^{[1
,2
]}

Sibo Sun ^{[1
]}

Bin Sun ^{[3
]}

Yundong Zhao ^{[1
]}

Rui Ning ^{[1
]}

Shangzhou Zhang ^{[2
]}

Zhiyong Gao ^{[1
]}

Haizhen Wang ^{[2
]}

Wei Cai ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Harbin Institute of Technology

[2] College of Nuclear Equipment and Nuclear Engineering, Yantai University

[3] Center of Testing and Analysis, College of Materials Science and Chemical Engineering, Harbin Engineering University

来源：

ProgressinNaturalScience:MaterialsInternational | 2022年 / 32卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TG139.6 []; TB383.2 [];

学科分类号：

摘要：

The effect of 120 ke V 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 Ni Ti 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.

引用

页码：72 / 78

页数：7

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