Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 497-499 |
| Seitenumfang | 3 |
| Fachzeitschrift | Scripta materialia |
| Jahrgang | 57 |
| Ausgabenummer | 6 |
| Publikationsstatus | Veröffentlicht - Sept. 2007 |
| Extern publiziert | Ja |
Abstract
Tensile and compressive strain-temperature and stress-strain responses have been used for the first time to investigate the effects of second-phase particles on the deformation of NiFeGa shape memory alloys. Particles are conducive to the dissipation of stored energy; stress and thermal hysteresis increase three-fold in aged alloys. Although dissipation is severe, recoverable strain levels are as large as +12% and -6%, which match strains for the unaged alloys. These results demonstrate that second-phase particles can be used to tailor the hysteresis while maintaining large transformation strains.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Ingenieurwesen (insg.)
- Werkstoffmechanik
- Ingenieurwesen (insg.)
- Maschinenbau
- Werkstoffwissenschaften (insg.)
- Metalle und Legierungen
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in: Scripta materialia, Jahrgang 57, Nr. 6, 09.2007, S. 497-499.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Mechanical response of NiFeGa alloys containing second-phase particles
AU - Hamilton, R. F.
AU - Sehitoglu, H.
AU - Efstathiou, C.
AU - Maier, H. J.
N1 - Funding Information: The work was supported by a grant CMS-0428428, the National Science Foundation, Division of Civil and Mechanical Systems.
PY - 2007/9
Y1 - 2007/9
N2 - Tensile and compressive strain-temperature and stress-strain responses have been used for the first time to investigate the effects of second-phase particles on the deformation of NiFeGa shape memory alloys. Particles are conducive to the dissipation of stored energy; stress and thermal hysteresis increase three-fold in aged alloys. Although dissipation is severe, recoverable strain levels are as large as +12% and -6%, which match strains for the unaged alloys. These results demonstrate that second-phase particles can be used to tailor the hysteresis while maintaining large transformation strains.
AB - Tensile and compressive strain-temperature and stress-strain responses have been used for the first time to investigate the effects of second-phase particles on the deformation of NiFeGa shape memory alloys. Particles are conducive to the dissipation of stored energy; stress and thermal hysteresis increase three-fold in aged alloys. Although dissipation is severe, recoverable strain levels are as large as +12% and -6%, which match strains for the unaged alloys. These results demonstrate that second-phase particles can be used to tailor the hysteresis while maintaining large transformation strains.
KW - Annealing
KW - Microstructure
KW - Shape memory
KW - Strain-temperature asymmetry
KW - Stress-strain asymmetry
UR - http://www.scopus.com/inward/record.url?scp=34447257661&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2007.05.024
DO - 10.1016/j.scriptamat.2007.05.024
M3 - Article
AN - SCOPUS:34447257661
VL - 57
SP - 497
EP - 499
JO - Scripta materialia
JF - Scripta materialia
SN - 1359-6462
IS - 6
ER -