High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability
Abstract
This invention relates to improved corrosion-resistant iron-aluminide intermetallic alloys. The alloys of this invention comprise, in atomic percent, from about 30% to about 40% aluminum alloyed with from about 0.1% to about 0.5% carbon, no more than about 0.04% boron such that the atomic weight ratio of boron to carbon in the alloy is in the range of from about 0.01:1 to about 0.08:1, from about 0.01 to about 3.5% of one or more transition metals selected from Group IVB, VB, and VIB elements and the balance iron wherein the alloy exhibits improved resistance to hot cracking during welding.
- Inventors:
-
- Oak Ridge, TN
- Lenoir City, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 870556
- Patent Number(s):
- 5545373
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- high-temperature; corrosion-resistant; iron-aluminide; feal; alloys; exhibiting; improved; weldability; relates; intermetallic; comprise; atomic; percent; 30; 40; aluminum; alloyed; carbon; 04; boron; weight; ratio; alloy; range; 01; 08; transition; metals; selected; ivb; vb; vib; elements; balance; iron; exhibits; resistance; hot; cracking; welding; atomic weight; metallic alloys; metallic alloy; intermetallic alloys; metals selected; intermetallic alloy; balance iron; atomic percent; transition metals; transition metal; aluminum alloy; improved resistance; weight ratio; exhibiting improved; exhibits improved; alloy exhibits; hot cracking; improved weldability; resistant iron; aluminide intermetallic; alloys exhibiting; corrosion-resistant iron-aluminide; /420/
Citation Formats
Maziasz, Philip J, Goodwin, Gene M, and Liu, Chain T. High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability. United States: N. p., 1996.
Web.
Maziasz, Philip J, Goodwin, Gene M, & Liu, Chain T. High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability. United States.
Maziasz, Philip J, Goodwin, Gene M, and Liu, Chain T. Mon .
"High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability". United States. https://www.osti.gov/servlets/purl/870556.
@article{osti_870556,
title = {High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability},
author = {Maziasz, Philip J and Goodwin, Gene M and Liu, Chain T},
abstractNote = {This invention relates to improved corrosion-resistant iron-aluminide intermetallic alloys. The alloys of this invention comprise, in atomic percent, from about 30% to about 40% aluminum alloyed with from about 0.1% to about 0.5% carbon, no more than about 0.04% boron such that the atomic weight ratio of boron to carbon in the alloy is in the range of from about 0.01:1 to about 0.08:1, from about 0.01 to about 3.5% of one or more transition metals selected from Group IVB, VB, and VIB elements and the balance iron wherein the alloy exhibits improved resistance to hot cracking during welding.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}
Works referenced in this record:
Influence of compositional modifications on the corrosion of iron aluminides of molten nitrate salts
report, January 1991
- Tortorelli, P. F.; Bishop, P. S.
A review of recent developments in Fe 3 Al-based alloys
journal, August 1991
- McKamey, C. G.; DeVan, J. H.; Tortorelli, P. F.
- Journal of Materials Research, Vol. 6, Issue 8
Microstructure and tensile properties of Fe-40 At. pct Al alloys with C, Zr, Hf, and B additions
journal, September 1989
- Gaydosh, D. J.; Draper, S. L.; Nathal, M. V.
- Metallurgical Transactions A, Vol. 20, Issue 9