FR2430985A2 - Cast nickel-chromium-superalloy - with addn. of hafnium increasing creep strength; esp. for use in gas turbine components with columnar cast structure - Google Patents

Cast nickel-chromium-superalloy - with addn. of hafnium increasing creep strength; esp. for use in gas turbine components with columnar cast structure

Info

Publication number
FR2430985A2
FR2430985A2 FR7820653A FR7820653A FR2430985A2 FR 2430985 A2 FR2430985 A2 FR 2430985A2 FR 7820653 A FR7820653 A FR 7820653A FR 7820653 A FR7820653 A FR 7820653A FR 2430985 A2 FR2430985 A2 FR 2430985A2
Authority
FR
France
Prior art keywords
esp
creep strength
addn
hafnium
gas turbine
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.)
Granted
Application number
FR7820653A
Other languages
French (fr)
Other versions
FR2430985B2 (en
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 Europe Ltd
Original Assignee
Inco Europe 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 Europe Ltd filed Critical Inco Europe Ltd
Priority to FR7820653A priority Critical patent/FR2430985A2/en
Publication of FR2430985A2 publication Critical patent/FR2430985A2/en
Application granted granted Critical
Publication of FR2430985B2 publication Critical patent/FR2430985B2/fr
Granted 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%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Parent Patent described a Ni-Cr superalloy suitable for casting objects such as gas turbine components exposed to corrosive media at high temp. The improvement comprises the addn. of hafnium such that the alloy has compsn. 14-22% Cr, 5-25% Co, 1-5% W, 0.5-3% Ta, 2-5% Ti, 1-4.5% Al, 4.5-9% Ti+Al, 0-2% Nb, 0.3-1.2% B, 0-3.5% Mo, 0-0.5% Zr, 0-0.2% Y and/or La, 0-0.1% C, =2.2% Hf, and =2% V; the remainder is Fe with impurities caused by melting. The pref. alloy contains 0.05-1.7% Hf, esp. 0.3-1.3% Hf, 0.5-1.5% esp. 0.5-1.3% V; 0.4-1 esp. 0.5-1% B; =0.05% C; 15-21% Cr; max. 17% Cr; or min. 19% Cr; 5-22% Co; 0.8-2.5% Ta, 0.5% max. Nb. The alloy is used esp. for parts requiring high creep strength and corrosion resistance at high temp. Used esp. in chill casting to obtain parts with columnar structure, where Hf and V improve creep strength and hot toughness.
FR7820653A 1978-07-11 1978-07-11 Cast nickel-chromium-superalloy - with addn. of hafnium increasing creep strength; esp. for use in gas turbine components with columnar cast structure Granted FR2430985A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7820653A FR2430985A2 (en) 1978-07-11 1978-07-11 Cast nickel-chromium-superalloy - with addn. of hafnium increasing creep strength; esp. for use in gas turbine components with columnar cast structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820653A FR2430985A2 (en) 1978-07-11 1978-07-11 Cast nickel-chromium-superalloy - with addn. of hafnium increasing creep strength; esp. for use in gas turbine components with columnar cast structure

Publications (2)

Publication Number Publication Date
FR2430985A2 true FR2430985A2 (en) 1980-02-08
FR2430985B2 FR2430985B2 (en) 1985-05-24

Family

ID=9210592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820653A Granted FR2430985A2 (en) 1978-07-11 1978-07-11 Cast nickel-chromium-superalloy - with addn. of hafnium increasing creep strength; esp. for use in gas turbine components with columnar cast structure

Country Status (1)

Country Link
FR (1) FR2430985A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361524A1 (en) * 1988-09-30 1990-04-04 Hitachi Metals, Ltd. Ni-base superalloy and method for producing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1013347A (en) * 1961-06-29 1965-12-15 Birmingham Small Arms Co Ltd Improvements in or relating to nickel-base alloys

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1013347A (en) * 1961-06-29 1965-12-15 Birmingham Small Arms Co Ltd Improvements in or relating to nickel-base alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361524A1 (en) * 1988-09-30 1990-04-04 Hitachi Metals, Ltd. Ni-base superalloy and method for producing the same
US5131961A (en) * 1988-09-30 1992-07-21 Hitachi Metals, Ltd. Method for producing a nickel-base superalloy

Also Published As

Publication number Publication date
FR2430985B2 (en) 1985-05-24

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