Physical property of a polycrystalline Ni53.5Mn25Ga21Ta0.5 high-temperature shape memory alloy

G. F. Dong; H. B. Yan; L. Gao; Z. Y. Gao; W. Cai

doi:10.1016/j.mseb.2022.116148

Physical property of a polycrystalline Ni_53.5Mn₂₅Ga₂₁Ta_0.5 high-temperature shape memory alloy

G. F. Dong^*
, H. B. Yan
, L. Gao
, Z. Y. Gao
, W. Cai

^*Corresponding author for this work

Vocational and Technical College of Liuzhou
Shanghai Ocean University
Harbin Institute of Technology

Research output: Contribution to journal › Review article › peer-review

7 Scopus citations

Abstract

Effect of Ta-alloying on microstructure, martensitic transformation and mechanical property of Ni_53.5Mn₂₅Ga₂₁Ta_0.5 alloy systematically investigated. The results show that the morphology of substructure of Ni-Mn-Ga alloy significantly changed, which the converted from plate martensite to the lath martensite. The compression tests show that a compressive strength of 1380 MPa with a fracture strain achieved up to 21.92 % in the Ni_53.5Mn₂₅Ga₂₁Ta_0.5 alloy at room temperature. At the same time, the martensite unchanged with T–type non-modulated structure. In addition, the martensitic transition temperature obviously decreased from 350℃ to 208℃and hysteresis temperature increased about 20℃when Ta substituted of Ni.

Original language	English
Article number	116148
Journal	Materials Science and Engineering: B
Volume	288
DOIs	https://doi.org/10.1016/j.mseb.2022.116148
State	Published - Feb 2023
Externally published	Yes

Keywords

Mechanical properties
Phase transformation
Strengthening
Ta-alloying

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10.1016/j.mseb.2022.116148

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@article{ace94feb5b59406a8ed3ef29e885626a,

title = "Physical property of a polycrystalline Ni53.5Mn25Ga21Ta0.5 high-temperature shape memory alloy",

abstract = "Effect of Ta-alloying on microstructure, martensitic transformation and mechanical property of Ni53.5Mn25Ga21Ta0.5 alloy systematically investigated. The results show that the morphology of substructure of Ni-Mn-Ga alloy significantly changed, which the converted from plate martensite to the lath martensite. The compression tests show that a compressive strength of 1380 MPa with a fracture strain achieved up to 21.92 \% in the Ni53.5Mn25Ga21Ta0.5 alloy at room temperature. At the same time, the martensite unchanged with T–type non-modulated structure. In addition, the martensitic transition temperature obviously decreased from 350℃ to 208℃and hysteresis temperature increased about 20℃when Ta substituted of Ni.",

keywords = "Mechanical properties, Phase transformation, Strengthening, Ta-alloying",

author = "Dong, \{G. F.\} and Yan, \{H. B.\} and L. Gao and Gao, \{Z. Y.\} and W. Cai",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2023",

month = feb,

doi = "10.1016/j.mseb.2022.116148",

language = "英语",

volume = "288",

journal = "Materials Science and Engineering: B",

issn = "0921-5107",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Physical property of a polycrystalline Ni53.5Mn25Ga21Ta0.5 high-temperature shape memory alloy

AU - Dong, G. F.

AU - Yan, H. B.

AU - Gao, L.

AU - Gao, Z. Y.

AU - Cai, W.

PY - 2023/2

Y1 - 2023/2

N2 - Effect of Ta-alloying on microstructure, martensitic transformation and mechanical property of Ni53.5Mn25Ga21Ta0.5 alloy systematically investigated. The results show that the morphology of substructure of Ni-Mn-Ga alloy significantly changed, which the converted from plate martensite to the lath martensite. The compression tests show that a compressive strength of 1380 MPa with a fracture strain achieved up to 21.92 % in the Ni53.5Mn25Ga21Ta0.5 alloy at room temperature. At the same time, the martensite unchanged with T–type non-modulated structure. In addition, the martensitic transition temperature obviously decreased from 350℃ to 208℃and hysteresis temperature increased about 20℃when Ta substituted of Ni.

AB - Effect of Ta-alloying on microstructure, martensitic transformation and mechanical property of Ni53.5Mn25Ga21Ta0.5 alloy systematically investigated. The results show that the morphology of substructure of Ni-Mn-Ga alloy significantly changed, which the converted from plate martensite to the lath martensite. The compression tests show that a compressive strength of 1380 MPa with a fracture strain achieved up to 21.92 % in the Ni53.5Mn25Ga21Ta0.5 alloy at room temperature. At the same time, the martensite unchanged with T–type non-modulated structure. In addition, the martensitic transition temperature obviously decreased from 350℃ to 208℃and hysteresis temperature increased about 20℃when Ta substituted of Ni.

KW - Mechanical properties

KW - Phase transformation

KW - Strengthening

KW - Ta-alloying

UR - https://www.scopus.com/pages/publications/85143862033

U2 - 10.1016/j.mseb.2022.116148

DO - 10.1016/j.mseb.2022.116148

M3 - 文献综述

AN - SCOPUS:85143862033

SN - 0921-5107

VL - 288

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

M1 - 116148

ER -

Physical property of a polycrystalline Ni_53.5Mn₂₅Ga₂₁Ta_0.5 high-temperature shape memory alloy

Abstract

Keywords

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