Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems

Holcomb, David E; Muralidharan, Govindarajan; Wilson, Dane F.

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Title: Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems

Abstract

An essentially Fe- and Co-free alloy is composed essentially of, in terms of weight percent: 6.0 to 7.5 Cr, 0 to 0.15 Al, 0.5 to 0.85 Mn, 11 to 19.5 Mo, 0.03 to 4.5 Ta, 0.01 to 9 W, 0.03 to 0.08 C, 0 to 1 Re, 0 to 1 Ru, 0 to 0.001 B, 0.0005 to 0.005 N, balance Ni, the alloy being characterized by, at 850.degree. C., a yield strength of at least 25 Ksi, a tensile strength of at least 38 Ksi, a creep rupture life at 12 Ksi of at least 25 hours, and a corrosion rate, expressed in weight loss [g/(cm.sup.2 sec)]10.sup.-11 during a 1000 hour immersion in liquid FLiNaK at 850.degree. C., in the range of 3 to 10.

Inventors:: Holcomb, David E; Muralidharan, Govindarajan; Wilson, Dane F.

Issue Date:: 2016-09-06

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1321909

Patent Number(s):: 9435011

Application Number:: 13/962,197

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

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

C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS

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C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C19/007 - {with a light metal
C22C19/057 - {with the maximum Cr content being less 10%}

C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
C22F1/10 - of nickel or cobalt or alloys based thereon

Show less

DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Aug 08

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Holcomb, David E, Muralidharan, Govindarajan, and Wilson, Dane F. Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems.  United States: N. p., 2016. 
        Web.

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                    Holcomb, David E, Muralidharan, Govindarajan, & Wilson, Dane F. Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems.  United States.

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                    Holcomb, David E, Muralidharan, Govindarajan, and Wilson, Dane F. Tue .  
        "Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems".  United States.  https://www.osti.gov/servlets/purl/1321909.

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@article{osti_1321909,

  title        = {Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems},

  author       = {Holcomb, David E and Muralidharan, Govindarajan and Wilson, Dane F.},

  abstractNote = {An essentially Fe- and Co-free alloy is composed essentially of, in terms of weight percent: 6.0 to 7.5 Cr, 0 to 0.15 Al, 0.5 to 0.85 Mn, 11 to 19.5 Mo, 0.03 to 4.5 Ta, 0.01 to 9 W, 0.03 to 0.08 C, 0 to 1 Re, 0 to 1 Ru, 0 to 0.001 B, 0.0005 to 0.005 N, balance Ni, the alloy being characterized by, at 850.degree. C., a yield strength of at least 25 Ksi, a tensile strength of at least 38 Ksi, a creep rupture life at 12 Ksi of at least 25 hours, and a corrosion rate, expressed in weight loss [g/(cm.sup.2 sec)]10.sup.-11 during a 1000 hour immersion in liquid FLiNaK at 850.degree. C., in the range of 3 to 10.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {9}

}

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Works referenced in this record:

Cobalt Base Alloys and Cast Articles
patent, July 1954

Binder, William O.
US Patent Document 2,684,299
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2684299

High Temperature Chromium-Molybdenum Alloy
patent, April 1962

Buck, Jr., Ronald Horace
US Patent Document 3,030,206
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3030206

Ductile Cobalt-Base Alloy
patent, December 1658

Herchenroeder, Robert B.
US Patent Document 3,416,916
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3416916

Electrodeposition of Refractory Metals
patent, May 1969

Mellors, Geoffrey W.; Senderoff, Seymour
US Patent Document 3,444,058
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3444058

Process of Producing Nickel Chromium Alloy Products
patent, May 1974

Parry, Philip James; Twigg, Peter Lindsay
US Patent Document 3,811,960
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3811960

Nickel-base heat resistant and wear resistant alloy
patent, November 1975

Doi, Hidekazu; Nishigaki, Kenichi
US Patent Document 3,917,463
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3917463

Process for the improvement of refractory composite materials comprising a matrix consisting of a superalloy and reinforcing fibers consisting of a metal carbide
patent, October 1976

Bibring, Herve; Trottier, Jean-Pierre; Khan, Tasadduq
US Patent Document 3,985,582
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3985582

Forgeable nickel-base super alloy
patent, March 1980

Ohmura, Taizo; Sakonooka, Akihiko; Sahira, Kensyo
US Patent Document 4,194,909
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4194909

Oxidation-resistant nickel alloy
patent, October 1984

Klarstrom, Dwaine L.
US Patent Document 4,476,091
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4476091

Method for producing corrosion resistant high strength superalloy articles
patent, April 1985

Duhl, David N.; Chen, Otis Y.; Gell, Maurice
US Patent Document 4,512,817
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4512817

Precipitation-hardening nickel-base alloy and method of producing same
patent, March 1987

Igarashi, Masaaki; Okada, Yasutaka; Yoshikawa, Kunihiko
US Patent Document 4,652,315
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4652315

Nickel-base alloys for high-temperature forging dies usable in atmosphere
patent, April 1988

Watanabe, Rikizo; Ohno, Takehiro; Nonomura, Toshiaki
US Patent Document 4,740,354
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4740354

Nickel-chromium alloy of improved fatigue strength
patent, August 1988

Smith, Gaylord D.; Wheeler, Jack M.; Tassen, Stephen C.
US Patent Document 4,765,956
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4765956

Low thermal expansion superalloy
patent, April 1989

Rothman, Michael F.; Tawancy, Hani M.
US Patent Document 4,818,486
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4818486

Process for thermally stress-relieving a tube
patent, April 1989

Bevilacqua, Bruce W.; Cheng, Wenche W.; Stoner, Donald R.
US Patent Document 4,820,359
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4820359

Nickel-base alloy
patent, October 1989

Smith, Gaylord D.; Tassen, Curtis S.; Ganesan, Pasupathy
US Patent Document 4,877,461
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4877461

Heat resistant alloys
patent, December 1991

Culling, John H.
US Patent Document 5,077,006
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5077006

Nickel aluminide base single crystal alloys
patent, December 1992

Naik, Subhash K.
US Patent Document 5,167,732
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5167732

Heat treatment of Alloy 718 for improved stress corrosion cracking resistance
patent, September 1993

Miglin, Marie T.
US Patent Document 5,244,515
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5244515

High temperature creep and oxidation resistant chromium silicide matrix alloy containing molybdenum
patent, July 1994

Raj, Sai V.
US Patent Document 5,330,590
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5330590

Nickel-based alloy with chromium, molybdenum and tantalum
patent, June 1996

Sugahara, Katsuo; Kitamura, Hideo; Wakita, Saburo
US Patent Document 5,529,642
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5529642

Alloy based on a silicide containing at least chromium and molybdenum
patent, February 1998

Nazmy, Mohammed; Noseda, Corrado; Staubli, Markus
US Patent Document 5,718,867
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5718867

Nickel-cobalt based alloys
patent, March 1999

Erickson, Gary L.
US Patent Document 5,888,316
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5888316

High corrosion resistant high strength superalloy and gas turbine utilizing the alloy
patent, June 1999

Sato, Koji; Ohno, Takehiro; Yasuda, Ken
US Patent Document 5,916,382
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5916382

Surface treatment of austenitic Ni-Fe-Cr-based alloys for improved resistance to intergranular-corrosion and-cracking
patent, February 2002

Limoges, David; Palumbo, Gino; Lin, Peter
US Patent Document 6,344,097
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6344097

Surface treatment of austenitic Ni-Fe-Cr based alloys for improved resistance to intergranular corrosion and intergranular cracking
patent, August 2003

Limoges, David; Palumbo, Gino; Lin, Peter
US Patent Document 6,610,154
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6610154

Corrosion and wear resistant alloy
patent, March 2004

Qiao, Cong Yue; Trudeau, Todd
US Patent Document 6,702,905
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6702905

Nickel-based alloy for high-temperature technology
patent, September 2004

Speidel, Markus; Bernauer, Josef
US Patent Document 6,797,232
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6797232

Nickel-base superalloy composition and its use in single-crystal articles
patent, June 2005

O'Hara, Kevin S.; Walston, William; Mukira, Charles Gitahi
US Patent Document 6,905,559
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6905559

Nickel base superalloys and turbine components fabricated therefrom
patent, June 2005

Bouse, Gregory Keith; Henry, Michael F.; Schaeffer, Jon Conrad
US Patent Document 6,908,518
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6908518

Superalloy for single crystal turbine vanes
patent, March 2006

Harris, Kenneth; Wahl, Jacqueline B.
US Patent Document 7,011,721
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7011721

Nickel-based alloys and articles made therefrom
patent, November 2010

Heazle, Mark
US Patent Document 7,824,606
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7824606

Superalloy compositions, articles, and methods of manufacture
patent, April 2012

Reynolds, Paul L.
US Patent Document 8,147,749
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8147749

Austenitic heat resistant alloy
patent, November 2012

Hirata, Hiroyuki; Iseda, Atsuro; Okada, Hirokazu
US Patent Document 8,313,591
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8313591

Age-Hardenable, Corrosion Resistant NI-CR-MO Alloys
patent-application, March 2005

Pike, Jr., Lee M.
US Patent Application 10/656010; 20050053513
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050053513

Low thermal expansion Ni-base superalloy
patent-application, December 2007

Hamano, Shuji; Ueta, Shigeki; Yamamoto, Ryuichi
US Patent Application 11/808614; 20070284018
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070284018

System and method for predicting compatibility of fluids with metals
patent-application, May 2008

Perrin, Glenn; McKennis, Jeffrey; Carter, Thomas
US Patent Application 11/518757; 20080126383
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080126383

Treatment Process for Bars
patent-application, February 2009

Toschi, Francesco; Paolone, Rolando
US Patent Application 11/665851; 20090044884
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090044884

Nickel base super alloy
patent-application, April 2009

Mitchell, Robert J.; Hardy, Mark C.
US Patent Application 12/230744; 20090087338
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090087338

Straight Tube Heat Exchanger with Expansion Joint
patent-application, August 2009

Conrad, Joachim; Degner, Kay
US Patent Application 12/360887; 20090194266
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090194266

Superalloy compositions, articles, and methods of manufacture
patent-application, January 2010

Reynolds, Paul L.
US Patent Application 11/095092; 20100008790
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100008790

Method of Heat Treatment for Desensitizing a Nikel-Based Alloy Relative to Environmentally-Assisted Cranking, in Particular for a Nuclear Reactor Fuel Assembly and for a Nuclear Reactor, and a Part Made of the Alloy and Subjected to the Treatment
patent-application, May 2010

Cloue, Jean-Marc; Garat, Veronique; Andrieu, Rric
US Patent Application 12/448588; 20100116383
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100116383

Nickel-Base Superalloys and Components Formed Thereof
patent-application, December 2010

Bain, Kenneth Rees; Mourer, David Paul; DiDomizio, Richard
US Patent Application 12/474651; 20100303666
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100303666

Cast Heat-Resistant Austenitic Steel with Improved Temperature Creep Properties and Balanced Alloying Element Additions and Methodology for Development of the Same
patent-application, December 2010

Pankiw, Roman I.; Muralidharan, Govindarajan; Sikka, Vinod Kumar
US Patent Application 12/839844; 20100303669
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100303669

Nickel-Chromium-Alloy
patent-application, November 2011

Jakobi, Dietlinde; Karduck, Peter; Freiherr Von Richthofen, Alexander
US Patent Application 13/124016; 20110272070
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110272070

Heat-Resistant Superalloy
patent-application, November 2012

Gu, Yuefeng; Harada, Hiroshi; Kobayashi, Toshiharu
US Patent Application 13/510630; 20120279351
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120279351

High Strength Alloys for High Temperature Service in Liquid-Salt Cooled Energy Systems
patent-application, September 2014

Holcomb, David E.; Muralidharan, Govindarajan; Wilson, Dane F.
US Patent Application 13/834985; 20140271338
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140271338

Microstructural and microchemical mechanisms controlling intergranular stress corrosion cracking in light-water-reactor systems
journal, October 1994

Bruemmer, Stephen M.; Was, Gary S.
Journal of Nuclear Materials, Vol. 216, p. 348-363
https://doi.org/10.1016/0022-3115(94)90020-5

Vibrational Spectra of Fluoro and Oxofluoro Complexes of Nb(V) and Ta(V)
journal, January 1991

von Barner, J. H.; Berg, R. W.; Bjerrum, N. J.
Materials Science Forum, Vol. 73-75, p. 279-284
https://doi.org/10.4028/www.scientific.net/MSF.73-75.279

Electrochemical Study of Tantalum in Fluoride and Oxofluoride Melts
journal, January 1994

Polyakova, L.
Journal of The Electrochemical Society, Vol. 141, Issue 11, p. 2982-2988
https://doi.org/10.1149/1.2059269

Processing of Ta₂O₅ powders for electronic applications
journal, December 2001

Singh, RAJ
Journal of Electronic Materials, Vol. 30, Issue 12, p. 1584-1594
https://doi.org/10.1007/s11664-001-0177-x

An experimental test facility to support development of the fluoride-salt-cooled high-temperature reactor
journal, February 2014

Yoder, Graydon; Aaron, Adam; Cunningham, Burns
Annals of Nuclear Energy, Vol. 64, p. 511-517
https://doi.org/10.1016/j.anucene.2013.08.008

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Similar Records

Title: Creep-resistant, cobalt-free alloys for high temperature, liquid-salt heat exchanger systems

Abstract

Citation Formats

Cobalt Base Alloys and Cast Articles patent, July 1954

High Temperature Chromium-Molybdenum Alloy patent, April 1962

Ductile Cobalt-Base Alloy patent, December 1658

Electrodeposition of Refractory Metals patent, May 1969

Process of Producing Nickel Chromium Alloy Products patent, May 1974

Nickel-base heat resistant and wear resistant alloy patent, November 1975

Process for the improvement of refractory composite materials comprising a matrix consisting of a superalloy and reinforcing fibers consisting of a metal carbide patent, October 1976

Forgeable nickel-base super alloy patent, March 1980

Oxidation-resistant nickel alloy patent, October 1984

Method for producing corrosion resistant high strength superalloy articles patent, April 1985

Precipitation-hardening nickel-base alloy and method of producing same patent, March 1987

Nickel-base alloys for high-temperature forging dies usable in atmosphere patent, April 1988

Nickel-chromium alloy of improved fatigue strength patent, August 1988

Low thermal expansion superalloy patent, April 1989

Process for thermally stress-relieving a tube patent, April 1989

Nickel-base alloy patent, October 1989

Heat resistant alloys patent, December 1991

Nickel aluminide base single crystal alloys patent, December 1992

Heat treatment of Alloy 718 for improved stress corrosion cracking resistance patent, September 1993

High temperature creep and oxidation resistant chromium silicide matrix alloy containing molybdenum patent, July 1994

Nickel-based alloy with chromium, molybdenum and tantalum patent, June 1996

Alloy based on a silicide containing at least chromium and molybdenum patent, February 1998

Nickel-cobalt based alloys patent, March 1999

High corrosion resistant high strength superalloy and gas turbine utilizing the alloy patent, June 1999

Surface treatment of austenitic Ni-Fe-Cr-based alloys for improved resistance to intergranular-corrosion and-cracking patent, February 2002

Surface treatment of austenitic Ni-Fe-Cr based alloys for improved resistance to intergranular corrosion and intergranular cracking patent, August 2003

Corrosion and wear resistant alloy patent, March 2004

Nickel-based alloy for high-temperature technology patent, September 2004

Nickel-base superalloy composition and its use in single-crystal articles patent, June 2005

Nickel base superalloys and turbine components fabricated therefrom patent, June 2005

Superalloy for single crystal turbine vanes patent, March 2006

Nickel-based alloys and articles made therefrom patent, November 2010

Superalloy compositions, articles, and methods of manufacture patent, April 2012

Austenitic heat resistant alloy patent, November 2012

Age-Hardenable, Corrosion Resistant NI-CR-MO Alloys patent-application, March 2005

Low thermal expansion Ni-base superalloy patent-application, December 2007

System and method for predicting compatibility of fluids with metals patent-application, May 2008

Treatment Process for Bars patent-application, February 2009

Nickel base super alloy patent-application, April 2009

Straight Tube Heat Exchanger with Expansion Joint patent-application, August 2009

Superalloy compositions, articles, and methods of manufacture patent-application, January 2010

Method of Heat Treatment for Desensitizing a Nikel-Based Alloy Relative to Environmentally-Assisted Cranking, in Particular for a Nuclear Reactor Fuel Assembly and for a Nuclear Reactor, and a Part Made of the Alloy and Subjected to the Treatment patent-application, May 2010

Nickel-Base Superalloys and Components Formed Thereof patent-application, December 2010

Cast Heat-Resistant Austenitic Steel with Improved Temperature Creep Properties and Balanced Alloying Element Additions and Methodology for Development of the Same patent-application, December 2010

Nickel-Chromium-Alloy patent-application, November 2011

Heat-Resistant Superalloy patent-application, November 2012

High Strength Alloys for High Temperature Service in Liquid-Salt Cooled Energy Systems patent-application, September 2014

Microstructural and microchemical mechanisms controlling intergranular stress corrosion cracking in light-water-reactor systems journal, October 1994

Vibrational Spectra of Fluoro and Oxofluoro Complexes of Nb(V) and Ta(V) journal, January 1991

Electrochemical Study of Tantalum in Fluoride and Oxofluoride Melts journal, January 1994

Processing of Ta2O5 powders for electronic applications journal, December 2001

An experimental test facility to support development of the fluoride-salt-cooled high-temperature reactor journal, February 2014

Cobalt Base Alloys and Cast Articles
patent, July 1954

High Temperature Chromium-Molybdenum Alloy
patent, April 1962

Ductile Cobalt-Base Alloy
patent, December 1658

Electrodeposition of Refractory Metals
patent, May 1969

Process of Producing Nickel Chromium Alloy Products
patent, May 1974

Nickel-base heat resistant and wear resistant alloy
patent, November 1975

Process for the improvement of refractory composite materials comprising a matrix consisting of a superalloy and reinforcing fibers consisting of a metal carbide
patent, October 1976

Forgeable nickel-base super alloy
patent, March 1980

Oxidation-resistant nickel alloy
patent, October 1984

Method for producing corrosion resistant high strength superalloy articles
patent, April 1985

Precipitation-hardening nickel-base alloy and method of producing same
patent, March 1987

Nickel-base alloys for high-temperature forging dies usable in atmosphere
patent, April 1988

Nickel-chromium alloy of improved fatigue strength
patent, August 1988

Low thermal expansion superalloy
patent, April 1989

Process for thermally stress-relieving a tube
patent, April 1989

Nickel-base alloy
patent, October 1989

Heat resistant alloys
patent, December 1991

Nickel aluminide base single crystal alloys
patent, December 1992

Heat treatment of Alloy 718 for improved stress corrosion cracking resistance
patent, September 1993

High temperature creep and oxidation resistant chromium silicide matrix alloy containing molybdenum
patent, July 1994

Nickel-based alloy with chromium, molybdenum and tantalum
patent, June 1996

Alloy based on a silicide containing at least chromium and molybdenum
patent, February 1998

Nickel-cobalt based alloys
patent, March 1999

High corrosion resistant high strength superalloy and gas turbine utilizing the alloy
patent, June 1999

Surface treatment of austenitic Ni-Fe-Cr-based alloys for improved resistance to intergranular-corrosion and-cracking
patent, February 2002

Surface treatment of austenitic Ni-Fe-Cr based alloys for improved resistance to intergranular corrosion and intergranular cracking
patent, August 2003

Corrosion and wear resistant alloy
patent, March 2004

Nickel-based alloy for high-temperature technology
patent, September 2004

Nickel-base superalloy composition and its use in single-crystal articles
patent, June 2005

Nickel base superalloys and turbine components fabricated therefrom
patent, June 2005

Superalloy for single crystal turbine vanes
patent, March 2006

Nickel-based alloys and articles made therefrom
patent, November 2010

Superalloy compositions, articles, and methods of manufacture
patent, April 2012

Austenitic heat resistant alloy
patent, November 2012

Age-Hardenable, Corrosion Resistant NI-CR-MO Alloys
patent-application, March 2005

Low thermal expansion Ni-base superalloy
patent-application, December 2007

System and method for predicting compatibility of fluids with metals
patent-application, May 2008

Treatment Process for Bars
patent-application, February 2009

Nickel base super alloy
patent-application, April 2009

Straight Tube Heat Exchanger with Expansion Joint
patent-application, August 2009

Superalloy compositions, articles, and methods of manufacture
patent-application, January 2010

Method of Heat Treatment for Desensitizing a Nikel-Based Alloy Relative to Environmentally-Assisted Cranking, in Particular for a Nuclear Reactor Fuel Assembly and for a Nuclear Reactor, and a Part Made of the Alloy and Subjected to the Treatment
patent-application, May 2010

Nickel-Base Superalloys and Components Formed Thereof
patent-application, December 2010

Cast Heat-Resistant Austenitic Steel with Improved Temperature Creep Properties and Balanced Alloying Element Additions and Methodology for Development of the Same
patent-application, December 2010

Nickel-Chromium-Alloy
patent-application, November 2011

Heat-Resistant Superalloy
patent-application, November 2012

High Strength Alloys for High Temperature Service in Liquid-Salt Cooled Energy Systems
patent-application, September 2014

Microstructural and microchemical mechanisms controlling intergranular stress corrosion cracking in light-water-reactor systems
journal, October 1994

Vibrational Spectra of Fluoro and Oxofluoro Complexes of Nb(V) and Ta(V)
journal, January 1991

Electrochemical Study of Tantalum in Fluoride and Oxofluoride Melts
journal, January 1994

Processing of Ta₂O₅ powders for electronic applications
journal, December 2001

An experimental test facility to support development of the fluoride-salt-cooled high-temperature reactor
journal, February 2014