Characterization of the secondary phases in spray formed Al-Zn-Mg-Cu-Sc-Zr alloy during hot compression

Ning, Z. L., Guo, S., Zhang, M. X., Cao, F. Y., Jia, Y. D. and Sun, J. F. (2016) Characterization of the secondary phases in spray formed Al-Zn-Mg-Cu-Sc-Zr alloy during hot compression. Journal of Materials Research, 31 16: 2465-2472. doi:10.1557/jmr.2016.224


Author Ning, Z. L.
Guo, S.
Zhang, M. X.
Cao, F. Y.
Jia, Y. D.
Sun, J. F.
Title Characterization of the secondary phases in spray formed Al-Zn-Mg-Cu-Sc-Zr alloy during hot compression
Journal name Journal of Materials Research   Check publisher's open access policy
ISSN 2044-5326
0884-2914
1092-8928
Publication date 2016-08-29
Year available 2016
Sub-type Article (original research)
DOI 10.1557/jmr.2016.224
Open Access Status Not yet assessed
Volume 31
Issue 16
Start page 2465
End page 2472
Total pages 8
Place of publication New York, NY United States
Publisher Cambridge University Press
Language eng
Abstract An Al–10.83Zn–3.39Mg–1.22Cu–0.16Zr–0.16Sc alloy was produced using the spray deposition technology. The microstructure evolution within temperature ranging between 613 K and 733 K during hot pressing process at different initial strain rate was investigated in a transmission electron microscope (TEM). Partial resolution of the primary precipitates in the deposited microstructure, such as η-MgZn2 and Al3(ScZr), took place. Moreover, new secondary η-MgZn2 and Al3(ScZr) precipitated from the super saturated solid solution and their effects on the recrystallization were also analyzed. The Al3(ScZr) and η-MgZn2 precipitation can act as barriers for the movement of both dislocations and grain boundaries, which are the main factors for hindering the recrystallization. Additionally, the dislocation slide during hot deformation was also investigated in detail. The spray deposition Al–Zn–Mg–Cu alloy own the well deformability, and the typical perfect dislocations can be found in the hot deformation Al–Zn–Mg–Cu alloy.
Keyword Microstructure
Spray deposition
Transmission electron microscopy (TEM)
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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