Shape memory and martensite deformation response of Ni2MnGa

J. D. Callaway, R. F. Hamilton, H. Sehitoglu, N. Miller, H. J. Maier, Y. Chumlyakov

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The purpose of this paper is twofold: to establish the magnitude of detwinning stress levels of non-modulated martensite in Ni53Mn 25Ga22 as a function of heat treatments utilizing single crystals, and to study the shape memory strains from constant-load temperature cycling experiments for aged and unaged conditions. The maximum transformation strains of 5.2% are consistent with the theoretical predictions based on energy minimization theory. The results exhibit a remarkable narrowing of the thermal hysteresis (as low as 2 °C) with increasing applied stress and a considerable two-way shape memory effect. Using microscopy, it is shown that aging produces a finer martensitic plate structure with an accompanying increase in detwinning stress compared to the unaged case.

Original languageEnglish (US)
Article numberS11
Pages (from-to)S108-S114
JournalSmart Materials and Structures
Volume16
Issue number1
DOIs
StatePublished - Jan 1 2007

Fingerprint

martensite
Shape memory effect
Martensite
Hysteresis
Loads (forces)
Microscopic examination
heat treatment
Aging of materials
hysteresis
Heat treatment
Single crystals
microscopy
cycles
optimization
single crystals
predictions
Experiments
Temperature
temperature
energy

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

Cite this

Callaway, J. D., Hamilton, R. F., Sehitoglu, H., Miller, N., Maier, H. J., & Chumlyakov, Y. (2007). Shape memory and martensite deformation response of Ni2MnGa. Smart Materials and Structures, 16(1), S108-S114. [S11]. https://doi.org/10.1088/0964-1726/16/1/S11
Callaway, J. D. ; Hamilton, R. F. ; Sehitoglu, H. ; Miller, N. ; Maier, H. J. ; Chumlyakov, Y. / Shape memory and martensite deformation response of Ni2MnGa. In: Smart Materials and Structures. 2007 ; Vol. 16, No. 1. pp. S108-S114.
@article{e0f30fa2c80247dc942581099fa56414,
title = "Shape memory and martensite deformation response of Ni2MnGa",
abstract = "The purpose of this paper is twofold: to establish the magnitude of detwinning stress levels of non-modulated martensite in Ni53Mn 25Ga22 as a function of heat treatments utilizing single crystals, and to study the shape memory strains from constant-load temperature cycling experiments for aged and unaged conditions. The maximum transformation strains of 5.2{\%} are consistent with the theoretical predictions based on energy minimization theory. The results exhibit a remarkable narrowing of the thermal hysteresis (as low as 2 °C) with increasing applied stress and a considerable two-way shape memory effect. Using microscopy, it is shown that aging produces a finer martensitic plate structure with an accompanying increase in detwinning stress compared to the unaged case.",
author = "Callaway, {J. D.} and Hamilton, {R. F.} and H. Sehitoglu and N. Miller and Maier, {H. J.} and Y. Chumlyakov",
year = "2007",
month = "1",
day = "1",
doi = "10.1088/0964-1726/16/1/S11",
language = "English (US)",
volume = "16",
pages = "S108--S114",
journal = "Smart Materials and Structures",
issn = "0964-1726",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Callaway, JD, Hamilton, RF, Sehitoglu, H, Miller, N, Maier, HJ & Chumlyakov, Y 2007, 'Shape memory and martensite deformation response of Ni2MnGa', Smart Materials and Structures, vol. 16, no. 1, S11, pp. S108-S114. https://doi.org/10.1088/0964-1726/16/1/S11

Shape memory and martensite deformation response of Ni2MnGa. / Callaway, J. D.; Hamilton, R. F.; Sehitoglu, H.; Miller, N.; Maier, H. J.; Chumlyakov, Y.

In: Smart Materials and Structures, Vol. 16, No. 1, S11, 01.01.2007, p. S108-S114.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Shape memory and martensite deformation response of Ni2MnGa

AU - Callaway, J. D.

AU - Hamilton, R. F.

AU - Sehitoglu, H.

AU - Miller, N.

AU - Maier, H. J.

AU - Chumlyakov, Y.

PY - 2007/1/1

Y1 - 2007/1/1

N2 - The purpose of this paper is twofold: to establish the magnitude of detwinning stress levels of non-modulated martensite in Ni53Mn 25Ga22 as a function of heat treatments utilizing single crystals, and to study the shape memory strains from constant-load temperature cycling experiments for aged and unaged conditions. The maximum transformation strains of 5.2% are consistent with the theoretical predictions based on energy minimization theory. The results exhibit a remarkable narrowing of the thermal hysteresis (as low as 2 °C) with increasing applied stress and a considerable two-way shape memory effect. Using microscopy, it is shown that aging produces a finer martensitic plate structure with an accompanying increase in detwinning stress compared to the unaged case.

AB - The purpose of this paper is twofold: to establish the magnitude of detwinning stress levels of non-modulated martensite in Ni53Mn 25Ga22 as a function of heat treatments utilizing single crystals, and to study the shape memory strains from constant-load temperature cycling experiments for aged and unaged conditions. The maximum transformation strains of 5.2% are consistent with the theoretical predictions based on energy minimization theory. The results exhibit a remarkable narrowing of the thermal hysteresis (as low as 2 °C) with increasing applied stress and a considerable two-way shape memory effect. Using microscopy, it is shown that aging produces a finer martensitic plate structure with an accompanying increase in detwinning stress compared to the unaged case.

UR - http://www.scopus.com/inward/record.url?scp=33947699436&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947699436&partnerID=8YFLogxK

U2 - 10.1088/0964-1726/16/1/S11

DO - 10.1088/0964-1726/16/1/S11

M3 - Article

AN - SCOPUS:33947699436

VL - 16

SP - S108-S114

JO - Smart Materials and Structures

JF - Smart Materials and Structures

SN - 0964-1726

IS - 1

M1 - S11

ER -

Callaway JD, Hamilton RF, Sehitoglu H, Miller N, Maier HJ, Chumlyakov Y. Shape memory and martensite deformation response of Ni2MnGa. Smart Materials and Structures. 2007 Jan 1;16(1):S108-S114. S11. https://doi.org/10.1088/0964-1726/16/1/S11