Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy

Jun Li; Kuishan Sun; Yuqi Jiang; Xianglong Meng; Wei Cai

doi:10.1016/j.matlet.2021.129732

Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy

Jun Li
, Kuishan Sun
, Yuqi Jiang
, Xianglong Meng^*
, Wei Cai

^*Corresponding author for this work

College of Mechanical and Electrical Engineering, Northeast Forestry University
Harbin Institute of Technology

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

12 Scopus citations

Abstract

The purpose of the paper was to investigate the martensitic transformation and its kinetic of the Ti-Ni-Cu-Hf shape memory alloy. The Ti₄₇Ni₄₄Cu₆Hf₃ alloy would undergo a reversible B2 ↔ B19′ martensitic transformation during thermal cycling process. The apparent activation energy was calculated based on seven different DSC cooling curves. A strong cooling rate dependence of martensitic transformation kinetics was observed and the corresponding mechanism was discussed. Moreover, the variation of transition activation energy for a specific martensite fraction was studied to further characterize the martensitic transformation kinetics.

Original language	English
Article number	129732
Journal	Materials Letters
Volume	293
DOIs	https://doi.org/10.1016/j.matlet.2021.129732
State	Published - 15 Jun 2021
Externally published	Yes

Keywords

Phase transformation
Shape memory materials
Thermodynamic and kinetics
Ti-Ni-Cu-Hf

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10.1016/j.matlet.2021.129732

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title = "Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy",

abstract = "The purpose of the paper was to investigate the martensitic transformation and its kinetic of the Ti-Ni-Cu-Hf shape memory alloy. The Ti47Ni44Cu6Hf3 alloy would undergo a reversible B2 ↔ B19′ martensitic transformation during thermal cycling process. The apparent activation energy was calculated based on seven different DSC cooling curves. A strong cooling rate dependence of martensitic transformation kinetics was observed and the corresponding mechanism was discussed. Moreover, the variation of transition activation energy for a specific martensite fraction was studied to further characterize the martensitic transformation kinetics.",

keywords = "Phase transformation, Shape memory materials, Thermodynamic and kinetics, Ti-Ni-Cu-Hf",

author = "Jun Li and Kuishan Sun and Yuqi Jiang and Xianglong Meng and Wei Cai",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = jun,

day = "15",

doi = "10.1016/j.matlet.2021.129732",

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T1 - Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy

AU - Li, Jun

AU - Sun, Kuishan

AU - Jiang, Yuqi

AU - Meng, Xianglong

AU - Cai, Wei

PY - 2021/6/15

Y1 - 2021/6/15

N2 - The purpose of the paper was to investigate the martensitic transformation and its kinetic of the Ti-Ni-Cu-Hf shape memory alloy. The Ti47Ni44Cu6Hf3 alloy would undergo a reversible B2 ↔ B19′ martensitic transformation during thermal cycling process. The apparent activation energy was calculated based on seven different DSC cooling curves. A strong cooling rate dependence of martensitic transformation kinetics was observed and the corresponding mechanism was discussed. Moreover, the variation of transition activation energy for a specific martensite fraction was studied to further characterize the martensitic transformation kinetics.

AB - The purpose of the paper was to investigate the martensitic transformation and its kinetic of the Ti-Ni-Cu-Hf shape memory alloy. The Ti47Ni44Cu6Hf3 alloy would undergo a reversible B2 ↔ B19′ martensitic transformation during thermal cycling process. The apparent activation energy was calculated based on seven different DSC cooling curves. A strong cooling rate dependence of martensitic transformation kinetics was observed and the corresponding mechanism was discussed. Moreover, the variation of transition activation energy for a specific martensite fraction was studied to further characterize the martensitic transformation kinetics.

KW - Phase transformation

KW - Shape memory materials

KW - Thermodynamic and kinetics

KW - Ti-Ni-Cu-Hf

UR - https://www.scopus.com/pages/publications/85103334952

U2 - 10.1016/j.matlet.2021.129732

DO - 10.1016/j.matlet.2021.129732

M3 - 文章

AN - SCOPUS:85103334952

SN - 0167-577X

VL - 293

JO - Materials Letters

JF - Materials Letters

M1 - 129732

ER -

Martensitic transformations and kinetics in Ti-Ni-Cu-Hf shape memory alloy

Abstract

Keywords

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