GB1449273A - Heat treatment of alloys - Google Patents

Heat treatment of alloys

Info

Publication number
GB1449273A
GB1449273A GB3542273A GB3542273A GB1449273A GB 1449273 A GB1449273 A GB 1449273A GB 3542273 A GB3542273 A GB 3542273A GB 3542273 A GB3542273 A GB 3542273A GB 1449273 A GB1449273 A GB 1449273A
Authority
GB
United Kingdom
Prior art keywords
temperature
melting
phases
segregated
incipient
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
GB3542273A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB3542273A priority Critical patent/GB1449273A/en
Publication of GB1449273A publication Critical patent/GB1449273A/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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

1449273 Solution treating segregated cast alloys GENERAL ELECTRIC CO 25 July 1973 35422/73 Heading C7A Cast alloys containing segregated low-melting phases are solution treated by heating them initially to a temperature below the incipient melting temperature of the lowest melting point phase for a time sufficient to at least partially dissolve that phase in the matrix whereby the incipient melting temperature of the body is increased. The temperature is then progressively raised to continue dissolution of the low-melting phases while keeping it below the incipient melting temperature, until all of those phases have been dissolved. The casting is then cooled to ambient temperature. The treatment is applied particularly to alloys containing in percentage by wt:- Cr 8 - 15 Co 8 - 15 Ti 3.3 - 6 Al 2 - 5À5 W 0-7 Zr 0 - 0À1 Mo 2 - 5 B 0À005 - 0À03 Si 0 - 0À5 C 0À05 - 0À35 Mn 0 - 0À5 Fe 0 - 1 V 0-1 Ta 0 - 4À4 Nb 0 - 2 Hf 0 - 2 Ni balance In one preferred composition of restricted range Ti + Al is 7À5-9% and Mo + W/ 2 is 5-7%, with the Ti:Al weight ratio being greater than 1:1 but less than 3:1, while in another Al + Ti is at least 8À1%, Al + Ti + Ta + Nb is 11À7-12À5%, Ta + Nb is 3À6-4À4% and Mo + W is at least 8À5%.
GB3542273A 1973-07-25 1973-07-25 Heat treatment of alloys Expired GB1449273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3542273A GB1449273A (en) 1973-07-25 1973-07-25 Heat treatment of alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3542273A GB1449273A (en) 1973-07-25 1973-07-25 Heat treatment of alloys

Publications (1)

Publication Number Publication Date
GB1449273A true GB1449273A (en) 1976-09-15

Family

ID=10377541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3542273A Expired GB1449273A (en) 1973-07-25 1973-07-25 Heat treatment of alloys

Country Status (1)

Country Link
GB (1) GB1449273A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519350A1 (en) * 1981-11-27 1983-07-08 United Technologies Corp METHOD FOR MANUFACTURING A SUPERALLIANCE MATERIAL WITH A CONTROLLED ORIENTATION-CONTROLLED COLONIC CRYSTALLINE STRUCTURE
FR2557146A1 (en) * 1983-12-27 1985-06-28 United Technologies Corp HEAT TREATMENT BEFORE HOT ISOSTATIC COMPRESSION OF SUPERALLY MOLDED PIECES
EP0353843A1 (en) * 1988-07-14 1990-02-07 ROLLS-ROYCE plc Powder alloy mix and superalloy article repair method
GB2234521A (en) * 1986-03-27 1991-02-06 Gen Electric Nickel-base superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries
GB2235697A (en) * 1986-12-30 1991-03-13 Gen Electric Nickel-base superalloys
US7208116B2 (en) 2000-09-29 2007-04-24 Rolls-Royce Plc Nickel base superalloy

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519350A1 (en) * 1981-11-27 1983-07-08 United Technologies Corp METHOD FOR MANUFACTURING A SUPERALLIANCE MATERIAL WITH A CONTROLLED ORIENTATION-CONTROLLED COLONIC CRYSTALLINE STRUCTURE
FR2557146A1 (en) * 1983-12-27 1985-06-28 United Technologies Corp HEAT TREATMENT BEFORE HOT ISOSTATIC COMPRESSION OF SUPERALLY MOLDED PIECES
GB2152075A (en) * 1983-12-27 1985-07-31 United Technologies Corp Pre-hip heat treatment of superalloy castings
GB2234521A (en) * 1986-03-27 1991-02-06 Gen Electric Nickel-base superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries
GB2234521B (en) * 1986-03-27 1991-05-01 Gen Electric Nickel-base superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries
AU626581B2 (en) * 1986-03-27 1992-08-06 General Electric Company Nickel-base single crystal superalloys
GB2235697A (en) * 1986-12-30 1991-03-13 Gen Electric Nickel-base superalloys
GB2235697B (en) * 1986-12-30 1991-08-14 Gen Electric Improved and property-balanced nickel-base superalloys for producing single crystal articles.
EP0353843A1 (en) * 1988-07-14 1990-02-07 ROLLS-ROYCE plc Powder alloy mix and superalloy article repair method
US7208116B2 (en) 2000-09-29 2007-04-24 Rolls-Royce Plc Nickel base superalloy

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees