Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Liu, Chain T; McKamey, Claudette G; Tortorelli, Peter F; David, Stan A

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Abstract

The specification discloses a corrosion-resistant intermetallic alloy comprising, in atomic percent, an FeAl iron aluminide containing from about 30 to about 40% aluminum alloyed with from about 0.01 to 0.4% zirconium and from 0.01 to about 0.8% boron. The alloy exhibits considerably improved room temperature ductility for enhanced usefulness in structural applications. The high temperature strength and fabricability is improved by alloying with molybdenum, carbon, chromium and vanadium.

Inventors:

Liu, Chain T ^[1]; McKamey, Claudette G ^[2]; Tortorelli, Peter F ^[2]; David, Stan A ^[2]

Oak Ridge, TN
Knoxville, TN

Issue Date:: 1994-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 869352

Patent Number(s):: 5320802

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)

Patent Classifications (CPCs):: C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

Show more

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

Show less

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: corrosion; resistant; iron; aluminides; exhibiting; improved; mechanical; properties; resistance; specification; discloses; corrosion-resistant; intermetallic; alloy; comprising; atomic; percent; feal; aluminide; containing; 30; 40; aluminum; alloyed; 01; zirconium; boron; exhibits; considerably; temperature; ductility; enhanced; usefulness; structural; applications; strength; fabricability; alloying; molybdenum; carbon; chromium; vanadium; metallic alloy; temperature strength; corrosion resistance; intermetallic alloy; alloy comprising; temperature ductility; improved mechanical; atomic percent; corrosion resistant; mechanical properties; iron aluminide; aluminum alloy; specification discloses; structural applications; aluminide containing; exhibiting improved; alloy exhibits; iron aluminides; resistant iron; corrosion-resistant intermetallic; /420/

Citation Formats


                    Liu, Chain T, McKamey, Claudette G, Tortorelli, Peter F, and David, Stan A. Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance.  United States: N. p., 1994. 
        Web.

Copy to clipboard


                    Liu, Chain T, McKamey, Claudette G, Tortorelli, Peter F, & David, Stan A. Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance.  United States.

Copy to clipboard


                    Liu, Chain T, McKamey, Claudette G, Tortorelli, Peter F, and David, Stan A. Sat .  
        "Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance".  United States.  https://www.osti.gov/servlets/purl/869352.

Copy to clipboard


                    
@article{osti_869352,

  title        = {Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance},

  author       = {Liu, Chain T and McKamey, Claudette G and Tortorelli, Peter F and David, Stan A},

  abstractNote = {The specification discloses a corrosion-resistant intermetallic alloy comprising, in atomic percent, an FeAl iron aluminide containing from about 30 to about 40% aluminum alloyed with from about 0.01 to 0.4% zirconium and from 0.01 to about 0.8% boron. The alloy exhibits considerably improved room temperature ductility for enhanced usefulness in structural applications. The high temperature strength and fabricability is improved by alloying with molybdenum, carbon, chromium and vanadium.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1994},

  month        = {1}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

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

Similar Records in DOE Patents and OSTI.GOV collections:

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

Patent Maziasz, Philip J [Oak Ridge, TN]; Goodwin, Gene M [Lenoir City, TN]; Liu, Chain T [Oak Ridge, TN]

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.
Full Text Available
Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Patent Liu, C T; McKamey, C G; Tortorelli, P F; ...

The specification discloses a corrosion-resistant intermetallic alloy comprising, in atomic percent, an FeAl iron aluminide containing from about 30 to about 40% aluminum alloyed with from about 0.01 to 0.4% zirconium and from 0.01 to about 0.8% boron. The alloy exhibits considerably improved room temperature ductility for enhanced usefulness in structural applications. The high temperature strength and fabricability is improved by alloying with molybdenum, carbon, chromium and vanadium. 9 figs.
High-temperature corrosion-resistant iron-aluminide (FeAl) alloys exhibiting improved weldability

Patent Maziasz, P J; Goodwin, G M; Liu, C T

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. 13more » figs. « less
Iron aluminide alloys with improved properties for high temperature applications

Patent McKamey, Claudette G [Knoxville, TN]; Liu, Chain T [Oak Ridge, TN]

An improved iron aluminide alloy of the DO.sub.3 type that has increased room temperature ductility and improved high elevated temperature strength. The alloy system further is resistant to corrosive attack in the environments of advanced energy corrosion systems such as those using fossil fuels. The resultant alloy is relatively inexpensive as contrasted to nickel based and high nickel steels currently utilized for structural components. The alloy system consists essentially of 26-30 at. % aluminum, 0.5-10 at. % chromium, 0.02-0.3 at. % boron plus carbon, up to 2 at. % molybdenum, up to 1 at. % niobium, up to 0.5 at.more » « less
Full Text Available
Two-phase chromium-niobium alloys exhibiting improved mechanical properties at high temperatures

Patent Liu, Chain T [Oak Ridge, TN]; Takeyama, Masao [Tokyo, JP]

The specification discloses chromium-niobium alloys which exhibit improved mechanical properties at high temperatures in the range of 1250.degree. C. and improved room temperature ductility. The alloys contain a Cr.sub.2 Nb-rich intermetallic phase and a Cr-rich phase with an overall niobium concentration in the range of from about 5 to about 18 at. %. The high temperature strength is substantially greater than that of state of the art nickel-based superalloys for enhanced high temperature service. Further improvements in the properties of the compositions are obtained by alloying with rhenium and aluminum; and additional rare-earth and other elements.
Full Text Available

Similar Records

Title: Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Abstract

Citation Formats

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

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