GB946944A - Improvements relating to the heat-treatment of nickel-chromium alloys - Google Patents

Improvements relating to the heat-treatment of nickel-chromium alloys

Info

Publication number
GB946944A
GB946944A GB5982/61A GB598261A GB946944A GB 946944 A GB946944 A GB 946944A GB 5982/61 A GB5982/61 A GB 5982/61A GB 598261 A GB598261 A GB 598261A GB 946944 A GB946944 A GB 946944A
Authority
GB
United Kingdom
Prior art keywords
temperature
alloy
hour
nickel
treatment
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
GB5982/61A
Inventor
Harold William George Hignett
Ernest James Bradbury
David Marshall Ward
Ronald Alfred Smith
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.)
Inco Ltd
Mond Nickel Co Ltd
Original Assignee
Inco Ltd
Mond Nickel Co Ltd
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 Inco Ltd, Mond Nickel Co Ltd filed Critical Inco Ltd
Priority to GB5982/61A priority Critical patent/GB946944A/en
Priority to DEJ21302A priority patent/DE1191587B/en
Priority to US179475A priority patent/US3145124A/en
Publication of GB946944A publication Critical patent/GB946944A/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
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A nickel base alloy comprises <TABS:0946944/C3/1> An alloy of the above composition is solution heat treated at above the Ni3(TiAl) solubility temperature but below the solidus for at least 1/4 hour, e.g. 1 - 10 hours, and preferably not more than 4 hours, then isothermally heat treated for at least 1/4 hour at a temperature not more than 50 DEG C. below the Ni3(TiAl) solubility temperature and, in any case, not less than 1075 DEG C., e.g. 1100-1125 DEG C. The alloy may be directly transferred from the first to the second stages or it may be air cooled to substantially room temperature prior to carrying out the second part. After these first two heat treatment steps the alloy may be cooled to 950-1050 DEG C. and kept at this temperature for a further period of at least 1/4 hour. The Provisional Specification discloses the following wider ranges: <TABS:0946944/C3/2> with Ti + W + Nb + V \sO 15 %. Specifications 583,845, 715,140 and 731,441 are referred to.
GB5982/61A 1961-02-17 1961-02-17 Improvements relating to the heat-treatment of nickel-chromium alloys Expired GB946944A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5982/61A GB946944A (en) 1961-02-17 1961-02-17 Improvements relating to the heat-treatment of nickel-chromium alloys
DEJ21302A DE1191587B (en) 1961-02-17 1962-02-15 Heat treatment of nickel-chromium alloys
US179475A US3145124A (en) 1961-02-17 1962-03-13 Heat treatment of nickel chromiumcobalt alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5982/61A GB946944A (en) 1961-02-17 1961-02-17 Improvements relating to the heat-treatment of nickel-chromium alloys

Publications (1)

Publication Number Publication Date
GB946944A true GB946944A (en) 1964-01-15

Family

ID=9806242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5982/61A Expired GB946944A (en) 1961-02-17 1961-02-17 Improvements relating to the heat-treatment of nickel-chromium alloys

Country Status (3)

Country Link
US (1) US3145124A (en)
DE (1) DE1191587B (en)
GB (1) GB946944A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB940907A (en) * 1962-07-04 1963-11-06 Rolls Royce Solution treatment of nickel-chromium-cobalt alloys
US3310394A (en) * 1963-09-17 1967-03-21 Raytheon Co Nickel alloys possessing controlled mechanical q properties
US3272666A (en) * 1963-12-09 1966-09-13 Du Pont Method of heat treating nickel base alloy articles up to 20 mils in thickness
US3390023A (en) * 1965-02-04 1968-06-25 North American Rockwell Method of heat treating age-hardenable alloys
US3536542A (en) * 1968-05-31 1970-10-27 Gen Electric Alloy heat treatment
US4888064A (en) * 1986-09-15 1989-12-19 General Electric Company Method of forming strong fatigue crack resistant nickel base superalloy and product formed
US5636641A (en) * 1994-07-25 1997-06-10 Advanced Cardiovascular Systems, Inc. High strength member for intracorporeal use
GB0024031D0 (en) 2000-09-29 2000-11-15 Rolls Royce Plc A nickel base superalloy

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712498A (en) * 1948-06-01 1955-07-05 Rolls Royce Nickel chromium alloys having high creep strength at high temperatures
US2766156A (en) * 1952-07-09 1956-10-09 Int Nickel Co Heat-treatment of nickel-chromiumcobalt alloys
US2766155A (en) * 1952-12-02 1956-10-09 Int Nickel Co Production of high temperature articles and alloys therefor
US2977223A (en) * 1957-12-10 1961-03-28 Westinghouse Electric Corp Stabilized and precipitation-hardened nickel-base alloys

Also Published As

Publication number Publication date
US3145124A (en) 1964-08-18
DE1191587B (en) 1965-04-22

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