Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications

Muralidharan, Govindarajan; Brady, Michael P.; Yamamoto, Yukinori

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Title: Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications

Abstract

An austenitic Ni-base alloy includes, in weight percent: 2.5 to 4.75 Al; 13 to 21 Cr; 20 to 40 Fe; 2 to 5 total of at least one element selected from the group consisting of Nb and Ta; 0.25 to 4.5 Ti; 0.09 to 1.5 Si; 0 to 0.5 V; 0 to 2 Mn; 0 to 3 Cu; 0 to 2 of Mo and W; 0 to 1 of Zr and Hf; 0 to 0.15 Y; 0.01 to 0.45 C; 0.005 to 0.1 B; 0 to 0.05 P; less than 0.06 N; and balance Ni (38 to 46 Ni). The weight percent Ni is greater than the weight percent Fe. An external continuous scale comprises alumina. A stable phase FCC austenitic matrix microstructure is essentially delta-ferrite-free, and contains one or more carbides and coherent precipitates of γ′ and exhibits creep rupture life of at least 100 h at 900° C. and 50 MPa.

Inventors:: Muralidharan, Govindarajan; Brady, Michael P.; Yamamoto, Yukinori

Issue Date:: 2022-10-25

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1986735

Patent Number(s):: 11479836

Application Number:: 17/162,890

Assignee:: UT-Battelle LLC (Oak Ridge, TN)

DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Resource Relation:: Patent File Date: 01/29/2021

Country of Publication:: United States

Language:: English

Citation Formats


                    Muralidharan, Govindarajan, Brady, Michael P., and Yamamoto, Yukinori. Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications.  United States: N. p., 2022. 
        Web.

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                    Muralidharan, Govindarajan, Brady, Michael P., & Yamamoto, Yukinori. Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications.  United States.

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                    Muralidharan, Govindarajan, Brady, Michael P., and Yamamoto, Yukinori. Tue .  
        "Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications".  United States.  https://www.osti.gov/servlets/purl/1986735.

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@article{osti_1986735,

  title        = {Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications},

  author       = {Muralidharan, Govindarajan and Brady, Michael P. and Yamamoto, Yukinori},

  abstractNote = {An austenitic Ni-base alloy includes, in weight percent: 2.5 to 4.75 Al; 13 to 21 Cr; 20 to 40 Fe; 2 to 5 total of at least one element selected from the group consisting of Nb and Ta; 0.25 to 4.5 Ti; 0.09 to 1.5 Si; 0 to 0.5 V; 0 to 2 Mn; 0 to 3 Cu; 0 to 2 of Mo and W; 0 to 1 of Zr and Hf; 0 to 0.15 Y; 0.01 to 0.45 C; 0.005 to 0.1 B; 0 to 0.05 P; less than 0.06 N; and balance Ni (38 to 46 Ni). The weight percent Ni is greater than the weight percent Fe. An external continuous scale comprises alumina. A stable phase FCC austenitic matrix microstructure is essentially delta-ferrite-free, and contains one or more carbides and coherent precipitates of γ′ and exhibits creep rupture life of at least 100 h at 900° C. and 50 MPa.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2022},

  month        = {10}

}

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Alumina-forming, high temperature creep resistant Ni-based alloys

Patent Muralidharan, Govindarajan; Pint, Bruce A.

An alumina-forming, high temperature creep resistant alloy is composed essentially of, in terms of weight percent: up to 10 Fe, 3.3 to 4.6 Al, 6 to 22 Cr, 0.68 to 0.74 Mn, 5.2 to 6.6 Mo, 0.4 to 1.2 Ti, up to 0.1 Hf, 0.005 to 0.05 La, 0.4 to 0.6 W, 0.1 to 0.35 C, up to 0.002 B, 0.001 to 0.02 N, balance Ni.
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Low-cost, high-strength Fe--Ni--Cr alloys for high temperature exhaust valve application

Patent Muralidharan, Govindarajan

An Fe--Ni--Cr alloy is composed essentially of, in terms of wt. %: 2.4 to 3.7 Al, up to 1.05 Co, 14.8 to 15.9 Cr, 25 to 36 Fe, up to 1.2 Hf, up to 4 Mn, up to 0.6 Mo, up to 2.2 Nb, up to 1.05 Ta, 1.9 to 3.6 Ti, up to 0.08 W, up to 0.03 Zr, 0.18 to 0.27 C, up to 0.0015 N, balance Ni, wherein, in terms of atomic percent: 8.5.ltoreq.Al+Ti+Zr+Hf+Ta.ltoreq.11.5, 0.53.ltoreq.Al/(Al+Ti+Zr+Hf+Ta).ltoreq.0.65, and 0.16.ltoreq.Cr/(Fe+Ni+Cr+Mn).ltoreq.0.21, the alloy being essentially free of Cu, Si, and V.
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Title: Low-cost, high-strength, cast creep-resistant alumina-forming alloys for heat-exchangers, supercritical CO2 systems and industrial applications

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Citation Formats

Effects of minor alloy additions and oxidation temperature on protective alumina scale formation in creep-resistant austenitic stainless steels journal, December 2007

Method of using chromium-nickel-manganese-iron alloy with austenitic structure in sulphurous environment at high temperature patent, December 1985

Austenitic iron alloys patent, April 1978

Oxidation and corrosion resistant austenitic stainless steel including molybdenum patent, March 2002

The Influence of Al Content on the High Temperature Oxidation Properties of State-of-the-Art Cast Ni-base Alloys journal, March 2013

Austenitic iron alloys having yttrium patent, May 1983

Heat Resistant Alloy Having Excellent Hot Workabilities patent, February 1975

Corrosion resistant age hardenable nickel-base alloy patent, September 1996

Low-Cost Cast Creep-Resistant Austenitic Stainless Steels That Form Alumina for High Temperature Oxidation Resistance patent-application, October 2019

Oxidation resistant high creep strength austenitic stainless steel patent, June 2010

Radiation resistant austenitic stainless steel alloys patent, April 1989

Alumina forming iron base superalloy patent, August 2014

Cast Nickel-Iron-Base Alloy Component and Process of Forming a Cast Nickel-Iron-Base Alloy Component patent-application, May 2013

High temperature oxidation resistant austenitic steel patent, July 1985

Alumina forming refinery process tubes with mixing element patent, February 2019

Welding electrode made of a nickel-based alloy and the corresponding alloy patent, September 2002

Low-Cost Cast Creep-Resistant Austenitic Stainless Steels that Form Alumina for High Temperature Oxidation Resistance patent-application, July 2019

Cast Alumina Forming Austenitic Stainless Steels patent-application, November 2012

High temperature creep resistant austenitic alloy patent, July 1989

Nickel-chrome-iron based alloy composition patent, December 1999

Hot Work Tools and Alloys Therefor patent, October 1974

Studs for boilers and other high temperature applications patent, April 1997

Cast alumina forming austenitic stainless steels patent, April 2013

High-CR High-NI, Heat-Resistant, Austenitic Cast Steel and Exhaust Equipment Members Formed Thereby patent-application, September 2007

High Mn austenitic stainless steel patent, July 2010

Acid Resistant Austenitic Alloy for Valve Seat Insert patent-application, April 2007

High Nb, Ta, and Al creep- and oxidation-resistant austenitic stainless steel patent, July 2010

Nickel chromium alloy patent, August 2018

Low cost, corrosion and heat resistant alloy for diesel engine valves patent, April 2002

Alumina-Forming, High Temperature Creep Resistant Ni-Based Alloys patent-application, June 2019

Heat-resistant alloy patent, August 1988

High Strength, Corrosion Resistant, Austenite-Ferrite Stainless Steel patent, February 1975

Alumina-forming, high temperature creep resistant Ni-based alloys patent, January 2019

Low porosity surfacing alloys patent, April 1989

Heat resistant hot formable austenitic nickel alloy patent, February 1997

Austenite Type Heat-Resisting Steel Having High Strength at an Elevated Temperature and the Process for Producing Same patent, July 1974

Maraging superalloys and heat treatment processes patent, February 1986

Aluminium Oxide Forming Nickel Based Alloy patent-application, October 2011

High Mn Austenitic Stainless Steel patent-application, November 2008

High strength corrosion resistant alloy patent, August 1999

Thermostable and Corrosion-Resistant Cast Nickel-Chromium Alloy patent-application, April 2019

High Al austenitic heat-resistant steel superior in hot workability patent, July 1992

Wear and corrosion resistant austenitic iron base alloy patent, March 2005

Gas turbine and gas turbine nozzle patent, January 1996

Wrought Stainless Steel Compositions Having Engineered Microstructures for Improved Heat Resistance patent-application, September 2004

Austenitic heat-resistant steel which forms Al.sub.2 O.sub.3 film in high-temperature oxidizing atmosphere patent, May 1980

Method of making complex boride particle containing alloys patent, March 1986

Thermostable and Corrosion-Resistant Cast Nickel-Chromium Alloy patent-application, June 2005

High post-irradiation ductility thermomechanical treatment for precipitation strengthened austenitic alloys patent, November 1982

Heat-resisting austenitic stainless steel patent, November 1976

Austenitic Iron Alloys patent, August 1973

Nonmagnetic ferrous alloy with excellent corrosion resistance and workability patent, March 1996

Nickel-chromium-alloy patent, February 2016

Precipitation-hardening-type Ni-base alloy exhibiting improved corrosion resistance patent, June 1993

Alumina Forming Refinery Process Tubes with Mixing Element patent-application, June 2016

Alumina-Forming, High Temperature Creep Resistant Ni-Based Alloys patent-application, December 2016

Method for joining two parts of different kinds by heterogeneous butt welding, and uses thereof patent, February 2001

Alumina-Forming Austenitic Stainless Steels Strengthened by Laves Phase and MC Carbide Precipitates journal, September 2007

Graphite and Nitrogen-Free Cast Alloys patent-application, April 2004

Effects of minor alloy additions and oxidation temperature on protective alumina scale formation in creep-resistant austenitic stainless steels
journal, December 2007

Method of using chromium-nickel-manganese-iron alloy with austenitic structure in sulphurous environment at high temperature
patent, December 1985

Austenitic iron alloys
patent, April 1978

Oxidation and corrosion resistant austenitic stainless steel including molybdenum
patent, March 2002

The Influence of Al Content on the High Temperature Oxidation Properties of State-of-the-Art Cast Ni-base Alloys
journal, March 2013

Austenitic iron alloys having yttrium
patent, May 1983

Heat Resistant Alloy Having Excellent Hot Workabilities
patent, February 1975

Corrosion resistant age hardenable nickel-base alloy
patent, September 1996

Low-Cost Cast Creep-Resistant Austenitic Stainless Steels That Form Alumina for High Temperature Oxidation Resistance
patent-application, October 2019

Oxidation resistant high creep strength austenitic stainless steel
patent, June 2010

Radiation resistant austenitic stainless steel alloys
patent, April 1989

Alumina forming iron base superalloy
patent, August 2014

Cast Nickel-Iron-Base Alloy Component and Process of Forming a Cast Nickel-Iron-Base Alloy Component
patent-application, May 2013

High temperature oxidation resistant austenitic steel
patent, July 1985

Alumina forming refinery process tubes with mixing element
patent, February 2019

Welding electrode made of a nickel-based alloy and the corresponding alloy
patent, September 2002

Low-Cost Cast Creep-Resistant Austenitic Stainless Steels that Form Alumina for High Temperature Oxidation Resistance
patent-application, July 2019

Cast Alumina Forming Austenitic Stainless Steels
patent-application, November 2012

High temperature creep resistant austenitic alloy
patent, July 1989

Nickel-chrome-iron based alloy composition
patent, December 1999

Hot Work Tools and Alloys Therefor
patent, October 1974

Studs for boilers and other high temperature applications
patent, April 1997

Cast alumina forming austenitic stainless steels
patent, April 2013

High-CR High-NI, Heat-Resistant, Austenitic Cast Steel and Exhaust Equipment Members Formed Thereby
patent-application, September 2007

High Mn austenitic stainless steel
patent, July 2010

Acid Resistant Austenitic Alloy for Valve Seat Insert
patent-application, April 2007

High Nb, Ta, and Al creep- and oxidation-resistant austenitic stainless steel
patent, July 2010

Nickel chromium alloy
patent, August 2018

Low cost, corrosion and heat resistant alloy for diesel engine valves
patent, April 2002

Alumina-Forming, High Temperature Creep Resistant Ni-Based Alloys
patent-application, June 2019

Heat-resistant alloy
patent, August 1988

High Strength, Corrosion Resistant, Austenite-Ferrite Stainless Steel
patent, February 1975

Alumina-forming, high temperature creep resistant Ni-based alloys
patent, January 2019

Low porosity surfacing alloys
patent, April 1989

Heat resistant hot formable austenitic nickel alloy
patent, February 1997

Austenite Type Heat-Resisting Steel Having High Strength at an Elevated Temperature and the Process for Producing Same
patent, July 1974

Maraging superalloys and heat treatment processes
patent, February 1986

Aluminium Oxide Forming Nickel Based Alloy
patent-application, October 2011

High Mn Austenitic Stainless Steel
patent-application, November 2008

High strength corrosion resistant alloy
patent, August 1999

Thermostable and Corrosion-Resistant Cast Nickel-Chromium Alloy
patent-application, April 2019

High Al austenitic heat-resistant steel superior in hot workability
patent, July 1992

Wear and corrosion resistant austenitic iron base alloy
patent, March 2005

Gas turbine and gas turbine nozzle
patent, January 1996

Wrought Stainless Steel Compositions Having Engineered Microstructures for Improved Heat Resistance
patent-application, September 2004

Austenitic heat-resistant steel which forms Al.sub.2 O.sub.3 film in high-temperature oxidizing atmosphere
patent, May 1980

Method of making complex boride particle containing alloys
patent, March 1986

Thermostable and Corrosion-Resistant Cast Nickel-Chromium Alloy
patent-application, June 2005

High post-irradiation ductility thermomechanical treatment for precipitation strengthened austenitic alloys
patent, November 1982

Heat-resisting austenitic stainless steel
patent, November 1976

Austenitic Iron Alloys
patent, August 1973

Nonmagnetic ferrous alloy with excellent corrosion resistance and workability
patent, March 1996

Nickel-chromium-alloy
patent, February 2016

Precipitation-hardening-type Ni-base alloy exhibiting improved corrosion resistance
patent, June 1993

Alumina Forming Refinery Process Tubes with Mixing Element
patent-application, June 2016

Alumina-Forming, High Temperature Creep Resistant Ni-Based Alloys
patent-application, December 2016

Method for joining two parts of different kinds by heterogeneous butt welding, and uses thereof
patent, February 2001

Alumina-Forming Austenitic Stainless Steels Strengthened by Laves Phase and MC Carbide Precipitates
journal, September 2007

Graphite and Nitrogen-Free Cast Alloys
patent-application, April 2004