Size effect on the martensitic transformation of Ti–Nb shape memory alloy

Bin Sun; Kuishan Sun; Xianglong Meng; Jun Wang

doi:10.1016/j.intermet.2022.107562

Size effect on the martensitic transformation of Ti–Nb shape memory alloy

Bin Sun
, Kuishan Sun
, Xianglong Meng
, Jun Wang^*

^*Corresponding author for this work

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

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

4 Scopus citations

Abstract

The effect of grain size on martensitic transformation was investigated by transmission electron microscopy in a nanocrystalline Ti–16Nb thin film with a broad range of grain sizes. The results show that the larger nanocrystals are filled with multiple variants with the {111}_α" type I twinning relationship. As the grain size decreases to about 40 nm, the martensite changes to the single variant morphology, and the shape memory effect is believed to deteriorate significantly then. Finally, the martensitic transformation is totally suppressed and the β parent remains when the grain size drops below 25 nm.

Original language	English
Article number	107562
Journal	Intermetallics
Volume	145
DOIs	https://doi.org/10.1016/j.intermet.2022.107562
State	Published - Jun 2022
Externally published	Yes

Keywords

Nanocrystalline materials
Phase transformation
Shape memory materials
Ti–Nb

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10.1016/j.intermet.2022.107562

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title = "Size effect on the martensitic transformation of Ti–Nb shape memory alloy",

abstract = "The effect of grain size on martensitic transformation was investigated by transmission electron microscopy in a nanocrystalline Ti–16Nb thin film with a broad range of grain sizes. The results show that the larger nanocrystals are filled with multiple variants with the \{111\}α{"} type I twinning relationship. As the grain size decreases to about 40 nm, the martensite changes to the single variant morphology, and the shape memory effect is believed to deteriorate significantly then. Finally, the martensitic transformation is totally suppressed and the β parent remains when the grain size drops below 25 nm.",

keywords = "Nanocrystalline materials, Phase transformation, Shape memory materials, Ti–Nb",

author = "Bin Sun and Kuishan Sun and Xianglong Meng and Jun Wang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jun,

doi = "10.1016/j.intermet.2022.107562",

language = "英语",

volume = "145",

journal = "Intermetallics",

issn = "0966-9795",

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TY - JOUR

T1 - Size effect on the martensitic transformation of Ti–Nb shape memory alloy

AU - Sun, Bin

AU - Sun, Kuishan

AU - Meng, Xianglong

AU - Wang, Jun

PY - 2022/6

Y1 - 2022/6

N2 - The effect of grain size on martensitic transformation was investigated by transmission electron microscopy in a nanocrystalline Ti–16Nb thin film with a broad range of grain sizes. The results show that the larger nanocrystals are filled with multiple variants with the {111}α" type I twinning relationship. As the grain size decreases to about 40 nm, the martensite changes to the single variant morphology, and the shape memory effect is believed to deteriorate significantly then. Finally, the martensitic transformation is totally suppressed and the β parent remains when the grain size drops below 25 nm.

AB - The effect of grain size on martensitic transformation was investigated by transmission electron microscopy in a nanocrystalline Ti–16Nb thin film with a broad range of grain sizes. The results show that the larger nanocrystals are filled with multiple variants with the {111}α" type I twinning relationship. As the grain size decreases to about 40 nm, the martensite changes to the single variant morphology, and the shape memory effect is believed to deteriorate significantly then. Finally, the martensitic transformation is totally suppressed and the β parent remains when the grain size drops below 25 nm.

KW - Nanocrystalline materials

KW - Phase transformation

KW - Shape memory materials

KW - Ti–Nb

UR - https://www.scopus.com/pages/publications/85127338282

U2 - 10.1016/j.intermet.2022.107562

DO - 10.1016/j.intermet.2022.107562

M3 - 文章

AN - SCOPUS:85127338282

SN - 0966-9795

VL - 145

JO - Intermetallics

JF - Intermetallics

M1 - 107562

ER -

Size effect on the martensitic transformation of Ti–Nb shape memory alloy

Abstract

Keywords

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