High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability

Maziasz, Philip J; Goodwin, Gene M; Liu, Chain T

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Title: 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:

Maziasz, Philip J ^[1]; Goodwin, Gene M ^[2]; Liu, Chain T ^[1]

Oak Ridge, TN
Lenoir City, TN

Issue Date:: Mon Jan 01 00:00:00 EST 1996

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

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C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C38/06 - containing aluminium

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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.

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                    Maziasz, Philip J, Goodwin, Gene M, & Liu, Chain T. High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability.  United States.

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                    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.

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@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         = {Mon Jan 01 00:00:00 EST 1996},

  month        = {Mon Jan 01 00:00:00 EST 1996}

}

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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.
https://doi.org/10.2172/10154548

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
https://doi.org/10.1557/JMR.1991.1779

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
https://doi.org/10.1007/BF02663202

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Similar Records

Title: High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability

Abstract

Citation Formats

Influence of compositional modifications on the corrosion of iron aluminides of molten nitrate salts report, January 1991

A review of recent developments in Fe 3 Al-based alloys journal, August 1991

Microstructure and tensile properties of Fe-40 At. pct Al alloys with C, Zr, Hf, and B additions journal, September 1989

Influence of compositional modifications on the corrosion of iron aluminides of molten nitrate salts
report, January 1991

A review of recent developments in Fe ₃ Al-based alloys
journal, August 1991

Microstructure and tensile properties of Fe-40 At. pct Al alloys with C, Zr, Hf, and B additions
journal, September 1989