Nickel-base superalloy systems

Chang, K M

Title: Nickel-base superalloy systems

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Abstract

This patent describes a substantially iron-free nickel-base alloy. It comprises (in weight percent): about 12% to 24% chromium, about 5% to 20% cobalt; and 1% to 8.5% of at least one member of the group consisting of molybdenum, tungsten and rhenium; about 2% to 23% tantalum; about 0.003% to 0.05% boron; less than about 1% iron; and the balance essentially nickel the alloy having a rupture life of at least 100 hours at a stress of 90 ksi at 1300{degrees}F. and a substantial volume fraction of gamma double prime phase.

Inventors:: Chang, K M

Publication Date:: Tue Jan 01 00:00:00 EST 1991

OSTI Identifier:: 5198224

Patent Number(s):: US 4981644; A

Application Number:: PPN: US 7-242741

Assignee:: General Electric Co., Schenectady, NY (USA)

Resource Type:: Patent

Resource Relation:: Patent File Date: 9 Sep 1988

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; HEAT RESISTING ALLOYS; CHEMICAL COMPOSITION; NICKEL BASE ALLOYS; CHROMIUM ALLOYS; COBALT ALLOYS; MOLYBDENUM; THERMODYNAMIC PROPERTIES; TUNGSTEN; ALLOYS; ELEMENTS; HEAT RESISTANT MATERIALS; MATERIALS; METALS; NICKEL ALLOYS; PHYSICAL PROPERTIES; TRANSITION ELEMENTS; 360101* - Metals & Alloys- Preparation & Fabrication; 360104 - Metals & Alloys- Physical Properties

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                    Chang, K M. Nickel-base superalloy systems.  United States: N. p., 1991. 
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                    Chang, K M. Nickel-base superalloy systems.  United States.

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                    Chang, K M. 1991.  
        "Nickel-base superalloy systems".  United States.

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@article{osti_5198224,

  title        = {Nickel-base superalloy systems},

  author       = {Chang, K M},

  abstractNote = {This patent describes a substantially iron-free nickel-base alloy. It comprises (in weight percent): about 12% to 24% chromium, about 5% to 20% cobalt; and 1% to 8.5% of at least one member of the group consisting of molybdenum, tungsten and rhenium; about 2% to 23% tantalum; about 0.003% to 0.05% boron; less than about 1% iron; and the balance essentially nickel the alloy having a rupture life of at least 100 hours at a stress of 90 ksi at 1300{degrees}F. and a substantial volume fraction of gamma double prime phase.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/5198224},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jan 01 00:00:00 EST 1991},

  month        = {Tue Jan 01 00:00:00 EST 1991}

}

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