Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | European Symposium on Martensitic Transformations, ESOMAT 2012 |
| Seiten | 82-86 |
| Seitenumfang | 5 |
| Publikationsstatus | Veröffentlicht - 25 Jan. 2013 |
| Extern publiziert | Ja |
| Veranstaltung | 9th European Symposium on Martensitic Transformations, ESOMAT 2012 - Saint-Petersburg, Russland Dauer: 9 Sept. 2012 → 16 Sept. 2012 |
Publikationsreihe
| Name | Materials Science Forum |
|---|---|
| Band | 738-739 |
| ISSN (Print) | 0255-5476 |
Abstract
This paper reports on the tension-compression asymmetry of [001]-oriented Co49Ni21Ga30 single crystals at elevated temperatures. Maximum strains of -4.8 % and 8.6 % in compression and tension, respectively, were found. A linear Clausius-Clapeyron relationship was observed for both stress-states where the smaller slope in tension resulted in a significant increase of the phase transformation temperatures with stress, which reached 180 °C under a constant stress level of 150 MPa. In addition, the material demonstrated a large pseudoelastic temperature range of about 300 °C under both stress state conditions. The results in this study unequivocally indicate the potential of these alloys for applications where elevated temperatures and stress levels prevail.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Ingenieurwesen (insg.)
- Werkstoffmechanik
- Ingenieurwesen (insg.)
- Maschinenbau
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- RIS
European Symposium on Martensitic Transformations, ESOMAT 2012. 2013. S. 82-86 (Materials Science Forum; Band 738-739).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Tension - Compression Asymmetry in co49Ni21Ga30 High-Temperature Shape Memory Alloy Single Crystals
AU - Niendorf, T.
AU - Dadda, J.
AU - Lackmann, J.
AU - Monroe, J. A.
AU - Karaman, I.
AU - Panchenko, E.
AU - Karaca, H. E.
AU - Maier, H. J.
PY - 2013/1/25
Y1 - 2013/1/25
N2 - This paper reports on the tension-compression asymmetry of [001]-oriented Co49Ni21Ga30 single crystals at elevated temperatures. Maximum strains of -4.8 % and 8.6 % in compression and tension, respectively, were found. A linear Clausius-Clapeyron relationship was observed for both stress-states where the smaller slope in tension resulted in a significant increase of the phase transformation temperatures with stress, which reached 180 °C under a constant stress level of 150 MPa. In addition, the material demonstrated a large pseudoelastic temperature range of about 300 °C under both stress state conditions. The results in this study unequivocally indicate the potential of these alloys for applications where elevated temperatures and stress levels prevail.
AB - This paper reports on the tension-compression asymmetry of [001]-oriented Co49Ni21Ga30 single crystals at elevated temperatures. Maximum strains of -4.8 % and 8.6 % in compression and tension, respectively, were found. A linear Clausius-Clapeyron relationship was observed for both stress-states where the smaller slope in tension resulted in a significant increase of the phase transformation temperatures with stress, which reached 180 °C under a constant stress level of 150 MPa. In addition, the material demonstrated a large pseudoelastic temperature range of about 300 °C under both stress state conditions. The results in this study unequivocally indicate the potential of these alloys for applications where elevated temperatures and stress levels prevail.
KW - Internal friction
KW - Martensite variants
KW - Martensitic phase transformation
KW - Nucleation
KW - Phase
KW - phase transformation
KW - Shape memory alloys (SMA)
UR - http://www.scopus.com/inward/record.url?scp=84874099332&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.738-739.82
DO - 10.4028/www.scientific.net/MSF.738-739.82
M3 - Conference contribution
AN - SCOPUS:84874099332
SN - 9783037856109
T3 - Materials Science Forum
SP - 82
EP - 86
BT - European Symposium on Martensitic Transformations, ESOMAT 2012
T2 - 9th European Symposium on Martensitic Transformations, ESOMAT 2012
Y2 - 9 September 2012 through 16 September 2012
ER -