Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 114-120 |
| Seitenumfang | 7 |
| Fachzeitschrift | Materials Science and Engineering A |
| Jahrgang | 496 |
| Ausgabenummer | 1-2 |
| Publikationsstatus | Veröffentlicht - 25 Nov. 2008 |
| Extern publiziert | Ja |
Abstract
The role of solid solution hardening on cyclic stability was investigated in ultrafine-grained (UFG) aluminum-magnesium (Al-Mg) alloys at elevated temperatures. Up to 150 °C, the pinning of dislocations by Mg solute atoms in the Al matrix imposed by solid solution hardening promotes cyclic stability. Above 150 °C, however, thermally activated grain coarsening governs the deformation response under cyclic loading, resulting in cyclic softening. Furthermore, the higher solute concentration increases the fatigue lives and performance at all temperatures. The current results emphasize the effectiveness of solid solution hardening in enhancing the cyclic stability and improving the fatigue performance of UFG materials.
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- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Ingenieurwesen (insg.)
- Werkstoffmechanik
- Ingenieurwesen (insg.)
- Maschinenbau
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in: Materials Science and Engineering A, Jahrgang 496, Nr. 1-2, 25.11.2008, S. 114-120.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - On the cyclic deformation response of ultrafine-grained Al-Mg alloys at elevated temperatures
AU - Canadinc, D.
AU - Maier, H. J.
AU - Gabor, P.
AU - May, J.
PY - 2008/11/25
Y1 - 2008/11/25
N2 - The role of solid solution hardening on cyclic stability was investigated in ultrafine-grained (UFG) aluminum-magnesium (Al-Mg) alloys at elevated temperatures. Up to 150 °C, the pinning of dislocations by Mg solute atoms in the Al matrix imposed by solid solution hardening promotes cyclic stability. Above 150 °C, however, thermally activated grain coarsening governs the deformation response under cyclic loading, resulting in cyclic softening. Furthermore, the higher solute concentration increases the fatigue lives and performance at all temperatures. The current results emphasize the effectiveness of solid solution hardening in enhancing the cyclic stability and improving the fatigue performance of UFG materials.
AB - The role of solid solution hardening on cyclic stability was investigated in ultrafine-grained (UFG) aluminum-magnesium (Al-Mg) alloys at elevated temperatures. Up to 150 °C, the pinning of dislocations by Mg solute atoms in the Al matrix imposed by solid solution hardening promotes cyclic stability. Above 150 °C, however, thermally activated grain coarsening governs the deformation response under cyclic loading, resulting in cyclic softening. Furthermore, the higher solute concentration increases the fatigue lives and performance at all temperatures. The current results emphasize the effectiveness of solid solution hardening in enhancing the cyclic stability and improving the fatigue performance of UFG materials.
KW - Al-Mg
KW - Cyclic stability
KW - Equal channel angular pressing
KW - High-temperature fatigue
KW - Microstructure
KW - Ultrafine-grained material
UR - http://www.scopus.com/inward/record.url?scp=51749103536&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2008.04.071
DO - 10.1016/j.msea.2008.04.071
M3 - Article
AN - SCOPUS:51749103536
VL - 496
SP - 114
EP - 120
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 1-2
ER -