Abstract
The microstructure of a Mg-2.4Gd-0.1Zr (at.%) alloy crept at 250 °C under 80 and 120 MPa has been investigated in this work. Under the influence of the applied stress, the precipitates are formed in chains along one direction (〈101¯0α〉) that is approximately normal to the applied stress direction. An unreported precipitate phase in Mg-Gd-based alloys, designated as βF′, is found to alternate with β′ phase in the precipitate chains. The βF′ phase has an irregular morphology, and is isomorphous with the Mg7Nd phase in binary Mg-Nd alloys. Although the β′ and βF′ both have three variants, the majority of β′ and βF′ precipitates in a precipitate chain keep only one orientation.
| Original language | English |
|---|---|
| Pages (from-to) | 417-420 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 137 |
| DOIs | |
| Publication status | Published - 15 Dec 2014 |
Keywords
- Aging
- Creep
- Magnesium alloy
- Microstructure
- Precipitates
Cite this
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Linear precipitate chains in Mg-2.4Gd-0.1Zr alloy after creep. / Xu, W. F.; Zhang, Y.; Peng, L. M.; Ding, W. J.; Nie, J. F.
In: Materials Letters, Vol. 137, 15.12.2014, p. 417-420.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Linear precipitate chains in Mg-2.4Gd-0.1Zr alloy after creep
AU - Xu, W. F.
AU - Zhang, Y.
AU - Peng, L. M.
AU - Ding, W. J.
AU - Nie, J. F.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - The microstructure of a Mg-2.4Gd-0.1Zr (at.%) alloy crept at 250 °C under 80 and 120 MPa has been investigated in this work. Under the influence of the applied stress, the precipitates are formed in chains along one direction (〈101¯0α〉) that is approximately normal to the applied stress direction. An unreported precipitate phase in Mg-Gd-based alloys, designated as βF′, is found to alternate with β′ phase in the precipitate chains. The βF′ phase has an irregular morphology, and is isomorphous with the Mg7Nd phase in binary Mg-Nd alloys. Although the β′ and βF′ both have three variants, the majority of β′ and βF′ precipitates in a precipitate chain keep only one orientation.
AB - The microstructure of a Mg-2.4Gd-0.1Zr (at.%) alloy crept at 250 °C under 80 and 120 MPa has been investigated in this work. Under the influence of the applied stress, the precipitates are formed in chains along one direction (〈101¯0α〉) that is approximately normal to the applied stress direction. An unreported precipitate phase in Mg-Gd-based alloys, designated as βF′, is found to alternate with β′ phase in the precipitate chains. The βF′ phase has an irregular morphology, and is isomorphous with the Mg7Nd phase in binary Mg-Nd alloys. Although the β′ and βF′ both have three variants, the majority of β′ and βF′ precipitates in a precipitate chain keep only one orientation.
KW - Aging
KW - Creep
KW - Magnesium alloy
KW - Microstructure
KW - Precipitates
UR - http://www.scopus.com/inward/record.url?scp=84907851699&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2014.09.050
DO - 10.1016/j.matlet.2014.09.050
M3 - Article
VL - 137
SP - 417
EP - 420
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -