GB1514241A - Nickel-iron-chromium alloys - Google Patents

Nickel-iron-chromium alloys

Info

Publication number
GB1514241A
GB1514241A GB28547/75A GB2854775A GB1514241A GB 1514241 A GB1514241 A GB 1514241A GB 28547/75 A GB28547/75 A GB 28547/75A GB 2854775 A GB2854775 A GB 2854775A GB 1514241 A GB1514241 A GB 1514241A
Authority
GB
United Kingdom
Prior art keywords
alloy
hours
precipitate
intermetallic
cube
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
GB28547/75A
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.)
Creusot Loire SA
Original Assignee
Creusot Loire SA
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 Creusot Loire SA filed Critical Creusot Loire SA
Publication of GB1514241A publication Critical patent/GB1514241A/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
    • C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
    • 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)
  • Powder Metallurgy (AREA)
  • Physical Vapour Deposition (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

1514241 Ni base superalloy CREUSOT-LOIRE 7 July 1975 [12 July 1974] 28547/75 Addition to 1385755 Heading C7A Alloy of composition:- Fe 15 to 25% Cr 15 to 25% C 0À01 to 0À2% Si 0 to 0À35% Wherein the matrix comprises precipitates each formed of a cube of at least 200A‹ side consisting of intermetallic γ' phase of FCC structure approximating to Ni 3 (Ti, Al, Nb, Ta) each cube being surrounded on its six faces by platelets consisting of an intermetallic γ" phase of body centred tetragonal structure approximating to Ni 3 (Nb, Ta) and wherein the values of the ratio and S = at % Nb, Ta, Ti and Al be within the area delineated by lines M, N, P, in Fig. 3, the value of S being greater than 6. The alloy may be prepared from composition lying within M, N, P, Q, in Fig. 3 by vacuum melting, casting and re-melting as a consumable electrode and may be heat-treated to produce the required precipitate morphology by solution heat treatment at 925 to 1060‹C, air or water quenching tempering at 750-850‹C for 1-16 hours to preciptate γ', slow cooling at 25-50‹C/hour, holding at 620-650‹C for 8-16 hours to precipitate γ" and water quenching. The alloy may be optionally held at 825 to 925‹C for ¢ to 16 hours between solution treatment and tempering and the precipitate morphology of γ" deposited on γ' imparts improved creep resistance to the alloy.
GB28547/75A 1974-07-12 1975-07-07 Nickel-iron-chromium alloys Expired GB1514241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7424388A FR2277901A2 (en) 1974-07-12 1974-07-12 IMPROVEMENTS TO NICKEL-IRON-CHROME BASED ALLOYS, WITH STRUCTURAL HARDENING OBTAINED BY APPROPRIATE THERMAL TREATMENT

Publications (1)

Publication Number Publication Date
GB1514241A true GB1514241A (en) 1978-06-14

Family

ID=9141237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28547/75A Expired GB1514241A (en) 1974-07-12 1975-07-07 Nickel-iron-chromium alloys

Country Status (5)

Country Link
DE (1) DE2525586A1 (en)
FR (1) FR2277901A2 (en)
GB (1) GB1514241A (en)
IT (1) IT1050565B (en)
SE (1) SE7507932L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056480A2 (en) * 1980-12-24 1982-07-28 Hitachi, Ltd. Use of nickel base alloy having high resistance to stress corrosion cracking
JPS59136443A (en) * 1983-07-25 1984-08-06 Hitachi Ltd Bolt material excellent in stress, corrosion, cracking resistance
US4578130A (en) * 1979-07-27 1986-03-25 The United States Of America As Represented By The United States Department Of Energy Iron-nickel-chromium alloy having improved swelling resistance and low neutron absorbence

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817050A1 (en) * 1978-04-19 1979-10-31 Basf Ag PROCESS FOR THE POLYMERIZATION OF VINYL CHLORIDE
JPS58174538A (en) * 1982-04-02 1983-10-13 Hitachi Ltd Ni-based alloy member and manufacture thereof
US4652315A (en) * 1983-06-20 1987-03-24 Sumitomo Metal Industries, Ltd. Precipitation-hardening nickel-base alloy and method of producing same
IL82587A0 (en) * 1986-05-27 1987-11-30 Carpenter Technology Corp Nickel-base alloy and method for preparation thereof
JP4123064B2 (en) * 2003-06-13 2008-07-23 株式会社日立製作所 Steam turbine rotor and steam turbine plant
CN112359250A (en) * 2020-10-29 2021-02-12 江苏新核合金科技有限公司 Preparation method of high-resistance electrothermal alloy
CN113897515B (en) * 2021-09-24 2022-04-12 扬州亚光电缆有限公司 High-temperature-resistant oxidation-resistant nickel-based alloy material for aerospace and preparation method and application thereof
CN113862571A (en) * 2021-09-28 2021-12-31 江苏宇钛新材料有限公司 Nickel-chromium high-temperature alloy and preparation method and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578130A (en) * 1979-07-27 1986-03-25 The United States Of America As Represented By The United States Department Of Energy Iron-nickel-chromium alloy having improved swelling resistance and low neutron absorbence
EP0056480A2 (en) * 1980-12-24 1982-07-28 Hitachi, Ltd. Use of nickel base alloy having high resistance to stress corrosion cracking
EP0056480A3 (en) * 1980-12-24 1982-08-11 Hitachi, Ltd. Member made of nickel base alloy having high resistance to stress corrosion cracking and method of producing same
JPS59136443A (en) * 1983-07-25 1984-08-06 Hitachi Ltd Bolt material excellent in stress, corrosion, cracking resistance
JPS6252024B2 (en) * 1983-07-25 1987-11-02 Hitachi Seisakusho Kk

Also Published As

Publication number Publication date
DE2525586A1 (en) 1976-01-29
FR2277901B2 (en) 1978-02-03
IT1050565B (en) 1981-03-20
SE7507932L (en) 1976-01-13
FR2277901A2 (en) 1976-02-06

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)