Details
| Original language | English |
|---|---|
| Article number | 221905 |
| Journal | Applied physics letters |
| Volume | 89 |
| Issue number | 22 |
| Publication status | Published - 2006 |
| Externally published | Yes |
Abstract
The authors report on the stress-strain and strain-temperature behaviors of a Ni2 MnGa alloy. Depending on the applied stress during cooling from austenite, different levels of transformation strain were observed culminating in the formation of a single variant of martensite and transformation strain of 4%. The results underscore an optimum stress level that maximizes shape memory strains. At higher stress levels, plasticity curtails the level of transformation strain and the concomitant magnetic shape memory strains. Similarly, the results uncover an optimum bias stress to maximize magnetic induced shape memory, producing strains exceeding 5% with reversible strains of 3%.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Applied physics letters, Vol. 89, No. 22, 221905, 2006.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Magnetic shape memory in Ni2MnGa as influenced by applied stress
AU - Callaway, J. D.
AU - Sehitoglu, H.
AU - Hamilton, R. F.
AU - Aslantas, K.
AU - Miller, N.
AU - Maier, H. J.
AU - Chumlyakov, Y.
N1 - Funding Information: The work was supported by the NSF Grant No. CMS-0428428.
PY - 2006
Y1 - 2006
N2 - The authors report on the stress-strain and strain-temperature behaviors of a Ni2 MnGa alloy. Depending on the applied stress during cooling from austenite, different levels of transformation strain were observed culminating in the formation of a single variant of martensite and transformation strain of 4%. The results underscore an optimum stress level that maximizes shape memory strains. At higher stress levels, plasticity curtails the level of transformation strain and the concomitant magnetic shape memory strains. Similarly, the results uncover an optimum bias stress to maximize magnetic induced shape memory, producing strains exceeding 5% with reversible strains of 3%.
AB - The authors report on the stress-strain and strain-temperature behaviors of a Ni2 MnGa alloy. Depending on the applied stress during cooling from austenite, different levels of transformation strain were observed culminating in the formation of a single variant of martensite and transformation strain of 4%. The results underscore an optimum stress level that maximizes shape memory strains. At higher stress levels, plasticity curtails the level of transformation strain and the concomitant magnetic shape memory strains. Similarly, the results uncover an optimum bias stress to maximize magnetic induced shape memory, producing strains exceeding 5% with reversible strains of 3%.
UR - http://www.scopus.com/inward/record.url?scp=33751581039&partnerID=8YFLogxK
U2 - 10.1063/1.2390669
DO - 10.1063/1.2390669
M3 - Article
AN - SCOPUS:33751581039
VL - 89
JO - Applied physics letters
JF - Applied physics letters
SN - 0003-6951
IS - 22
M1 - 221905
ER -