Castable high-temperature Ce-modified Al alloys
Abstract
A cast alloy includes aluminum and from about 5 to about 30 weight percent of at least one material selected from the group consisting of cerium, lanthanum, and mischmetal. The cast alloy has a strengthening Al11X3 intermetallic phase in an amount in the range of from about 5 to about 30 weight percent, wherein X is at least one of cerium, lanthanum, and mischmetal. The Al11X3 intermetallic phase has a microstructure that includes at least one of lath features and rod morphological features. The morphological features have an average thickness of no more than 700 um and an average spacing of no more than 10 um, the microstructure further comprising an eutectic microconstituent that comprises more than about 10 volume percent of the microstructure.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1440532
- Patent Number(s):
- 9963770
- Application Number:
- 15/204,169
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
- DOE Contract Number:
- AC05-00OR22725; AC02-07CH11358; AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2016 Jul 07
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Rios, Orlando, King, Alexander H., McCall, Scott K., McGuire, Michael A., Sims, Zachary C., Thorne, Cori, Weiss, David, and Ludtka, Gerard M. Castable high-temperature Ce-modified Al alloys. United States: N. p., 2018.
Web.
Rios, Orlando, King, Alexander H., McCall, Scott K., McGuire, Michael A., Sims, Zachary C., Thorne, Cori, Weiss, David, & Ludtka, Gerard M. Castable high-temperature Ce-modified Al alloys. United States.
Rios, Orlando, King, Alexander H., McCall, Scott K., McGuire, Michael A., Sims, Zachary C., Thorne, Cori, Weiss, David, and Ludtka, Gerard M. Tue .
"Castable high-temperature Ce-modified Al alloys". United States. https://www.osti.gov/servlets/purl/1440532.
@article{osti_1440532,
title = {Castable high-temperature Ce-modified Al alloys},
author = {Rios, Orlando and King, Alexander H. and McCall, Scott K. and McGuire, Michael A. and Sims, Zachary C. and Thorne, Cori and Weiss, David and Ludtka, Gerard M.},
abstractNote = {A cast alloy includes aluminum and from about 5 to about 30 weight percent of at least one material selected from the group consisting of cerium, lanthanum, and mischmetal. The cast alloy has a strengthening Al11X3 intermetallic phase in an amount in the range of from about 5 to about 30 weight percent, wherein X is at least one of cerium, lanthanum, and mischmetal. The Al11X3 intermetallic phase has a microstructure that includes at least one of lath features and rod morphological features. The morphological features have an average thickness of no more than 700 um and an average spacing of no more than 10 um, the microstructure further comprising an eutectic microconstituent that comprises more than about 10 volume percent of the microstructure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}
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