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GB1268844A - Thermomechanical strengthening of the nickel-base superalloys - Google Patents

Thermomechanical strengthening of the nickel-base superalloys

Info

Publication number
GB1268844A
GB1268844A GB3440669A GB3440669A GB1268844A GB 1268844 A GB1268844 A GB 1268844A GB 3440669 A GB3440669 A GB 3440669A GB 3440669 A GB3440669 A GB 3440669A GB 1268844 A GB1268844 A GB 1268844A
Authority
GB
United Kingdom
Prior art keywords
temperature
solvus
nickel
heat
distribution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3440669A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
United Aircraft Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
Publication of GB1268844A publication Critical patent/GB1268844A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)

Abstract

1,268,844. Heat-treating nickel alloys. UNITED AIRCRAFT CORP. July 8, 1969 [July 19, 1968], No.34406/69. Heading C7A. Nickel-base super alloys are heat-treated to form a homogeneous distribution of precipitated γ<SP>1</SP> phase, the latter having an interparticle spacing not exceeding 5 microns and forming a volume fraction of not less than 25%; they are then worked at a temperature not exceeding the solvus temperature of the γ<SP>1</SP> phase or the gross recrystallization temperature, but not less than the minimum recovery temperature to effect a reduction in area of at least 15% without impairing the volume fraction or distribution of the γ<SP>1</SP>. The alloy is then further heat-treated to stabilise it and provide additional precipitation strengthening. The first step may consist of solution treatment followed by ageing at a temperature between the γ<SP>1</SP> solvus and the minimum recovery temperature. Working may be carried out near the minimum recovery temperature, when a random dislocation distribution is obtained, or near the solvus temperature, when the dislocations are aligned regularly along the polygonal sub-cell boundaries.
GB3440669A 1968-07-19 1969-07-08 Thermomechanical strengthening of the nickel-base superalloys Expired GB1268844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74601368A 1968-07-19 1968-07-19

Publications (1)

Publication Number Publication Date
GB1268844A true GB1268844A (en) 1972-03-29

Family

ID=24999139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3440669A Expired GB1268844A (en) 1968-07-19 1969-07-08 Thermomechanical strengthening of the nickel-base superalloys

Country Status (7)

Country Link
JP (1) JPS4822567B1 (en)
BE (1) BE736221A (en)
CH (1) CH532662A (en)
DE (1) DE1936015A1 (en)
FR (1) FR2024095A1 (en)
GB (1) GB1268844A (en)
NL (1) NL6911037A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28681E (en) 1973-04-02 1976-01-13 High temperature alloys
USRE29920E (en) 1975-07-29 1979-02-27 High temperature alloys
GB2225790A (en) * 1988-12-13 1990-06-13 Gen Electric Fatigue crack growth resistant nickel-base article and alloy and method of making.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793868A (en) * 1986-09-15 1988-12-27 General Electric Company Thermomechanical method of forming fatigue crack resistant nickel base superalloys and product formed
CN109724556B (en) * 2017-10-27 2020-08-21 中国科学院金属研究所 Evaluation method for recrystallization tendency of nickel-based single crystal superalloy during precision casting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28681E (en) 1973-04-02 1976-01-13 High temperature alloys
USRE29920E (en) 1975-07-29 1979-02-27 High temperature alloys
GB2225790A (en) * 1988-12-13 1990-06-13 Gen Electric Fatigue crack growth resistant nickel-base article and alloy and method of making.
GB2225790B (en) * 1988-12-13 1993-06-02 Gen Electric Fatigue crack growth resistant nickel-base article and alloy and method for making

Also Published As

Publication number Publication date
DE1936015A1 (en) 1970-01-22
CH532662A (en) 1973-01-15
NL6911037A (en) 1970-01-21
JPS4822567B1 (en) 1973-07-06
FR2024095A1 (en) 1970-08-28
BE736221A (en) 1969-12-31

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