Microstructure, martensitic transformation and properties in the Ni50Mn30Ga16Cu4 ferromagnetic shape memory alloy

G. F. Dong; L. Gao; C. L. Tan; W. Cai

doi:10.1016/j.msea.2012.08.009

Microstructure, martensitic transformation and properties in the Ni₅₀Mn₃₀Ga₁₆Cu₄ ferromagnetic shape memory alloy

G. F. Dong^*
, L. Gao
, C. L. Tan
, W. Cai

^*Corresponding author for this work

Dalian University
Dalian University of Technology
Shanghai Ocean University
Harbin University of Science and Technology
Harbin Institute of Technology

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

8 Scopus citations

Abstract

A Heusler Ni₅₀Mn₃₀Ga₁Cu₄ alloy with the highest compressive strength has been obtained by substituting 4at% Cu for Ga in a ternary Ni₅₀Mn₃₀Ga₂₀ ferromagnetic shape memory alloy. It is shown that the highest compressive strength of 3178.9MPa with a fracture strain up to 13.6% can be achieved at room temperature. To date, this is the highest compressive strength reported in the Ni-Mn-Ga alloy system. The martensitic structure changes from 7M with 0at% Cu to non-modulated T martensite with 4at% Cu In addition, the Cu doping markedly increases the martensitic transformation temperature from 82.1°C to 136.6°C. At the same time, the Curie temperature and saturation magnetization for the Ni₅₀Mn₃₀Ga₁₆Cu₄ alloy slowly decrease due to the 4at% Cu addition.

Original language	English
Pages (from-to)	338-342
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	558
DOIs	https://doi.org/10.1016/j.msea.2012.08.009
State	Published - 15 Dec 2012
Externally published	Yes

Keywords

Compressive strength
Martensitic transformation
Microstructure

Access to Document

10.1016/j.msea.2012.08.009

Cite this

@article{6fdbbeb87413498ea3d8aa38d4434059,

title = "Microstructure, martensitic transformation and properties in the Ni50Mn30Ga16Cu4 ferromagnetic shape memory alloy",

abstract = "A Heusler Ni50Mn30Ga1Cu4 alloy with the highest compressive strength has been obtained by substituting 4at\% Cu for Ga in a ternary Ni50Mn30Ga20 ferromagnetic shape memory alloy. It is shown that the highest compressive strength of 3178.9MPa with a fracture strain up to 13.6\% can be achieved at room temperature. To date, this is the highest compressive strength reported in the Ni-Mn-Ga alloy system. The martensitic structure changes from 7M with 0at\% Cu to non-modulated T martensite with 4at\% Cu In addition, the Cu doping markedly increases the martensitic transformation temperature from 82.1°C to 136.6°C. At the same time, the Curie temperature and saturation magnetization for the Ni50Mn30Ga16Cu4 alloy slowly decrease due to the 4at\% Cu addition.",

keywords = "Compressive strength, Martensitic transformation, Microstructure",

author = "Dong, \{G. F.\} and L. Gao and Tan, \{C. L.\} and W. Cai",

year = "2012",

month = dec,

day = "15",

doi = "10.1016/j.msea.2012.08.009",

language = "英语",

volume = "558",

pages = "338--342",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Microstructure, martensitic transformation and properties in the Ni50Mn30Ga16Cu4 ferromagnetic shape memory alloy

AU - Dong, G. F.

AU - Gao, L.

AU - Tan, C. L.

AU - Cai, W.

PY - 2012/12/15

Y1 - 2012/12/15

N2 - A Heusler Ni50Mn30Ga1Cu4 alloy with the highest compressive strength has been obtained by substituting 4at% Cu for Ga in a ternary Ni50Mn30Ga20 ferromagnetic shape memory alloy. It is shown that the highest compressive strength of 3178.9MPa with a fracture strain up to 13.6% can be achieved at room temperature. To date, this is the highest compressive strength reported in the Ni-Mn-Ga alloy system. The martensitic structure changes from 7M with 0at% Cu to non-modulated T martensite with 4at% Cu In addition, the Cu doping markedly increases the martensitic transformation temperature from 82.1°C to 136.6°C. At the same time, the Curie temperature and saturation magnetization for the Ni50Mn30Ga16Cu4 alloy slowly decrease due to the 4at% Cu addition.

AB - A Heusler Ni50Mn30Ga1Cu4 alloy with the highest compressive strength has been obtained by substituting 4at% Cu for Ga in a ternary Ni50Mn30Ga20 ferromagnetic shape memory alloy. It is shown that the highest compressive strength of 3178.9MPa with a fracture strain up to 13.6% can be achieved at room temperature. To date, this is the highest compressive strength reported in the Ni-Mn-Ga alloy system. The martensitic structure changes from 7M with 0at% Cu to non-modulated T martensite with 4at% Cu In addition, the Cu doping markedly increases the martensitic transformation temperature from 82.1°C to 136.6°C. At the same time, the Curie temperature and saturation magnetization for the Ni50Mn30Ga16Cu4 alloy slowly decrease due to the 4at% Cu addition.

KW - Compressive strength

KW - Martensitic transformation

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84866283696

U2 - 10.1016/j.msea.2012.08.009

DO - 10.1016/j.msea.2012.08.009

M3 - 文章

AN - SCOPUS:84866283696

SN - 0921-5093

VL - 558

SP - 338

EP - 342

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Microstructure, martensitic transformation and properties in the Ni₅₀Mn₃₀Ga₁₆Cu₄ ferromagnetic shape memory alloy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this