US3220829A - Cast alloy - Google Patents

Cast alloy Download PDF

Info

Publication number
US3220829A
US3220829A US144069A US14406961A US3220829A US 3220829 A US3220829 A US 3220829A US 144069 A US144069 A US 144069A US 14406961 A US14406961 A US 14406961A US 3220829 A US3220829 A US 3220829A
Authority
US
United States
Prior art keywords
alloys
casting
chromium
columbium
cast
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 - Lifetime
Application number
US144069A
Other languages
English (en)
Inventor
Murray T Stewart
Clarence G Bieber
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.)
Huntington Alloys Corp
Original Assignee
International Nickel Co Inc
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
Priority to NL124041D priority Critical patent/NL124041C/xx
Priority to NL284163D priority patent/NL284163A/xx
Priority to BE623451D priority patent/BE623451A/xx
Application filed by International Nickel Co Inc filed Critical International Nickel Co Inc
Priority to US144069A priority patent/US3220829A/en
Priority to DEJ22467A priority patent/DE1278740B/de
Priority to GB38401/62A priority patent/GB957139A/en
Priority to CH1189662A priority patent/CH415065A/fr
Application granted granted Critical
Publication of US3220829A publication Critical patent/US3220829A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C19/053—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 30% but less than 40%
    • 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
    • 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%

Definitions

  • the art has endeavored to provide cast alloys having high strength and ductility at room temperature in combination with high strength, creep resistance and duetility at elevated temperatures of the order of 1300 F. and higher.
  • the alloys in order to be commercially practicable, must be amenable to be melted in air or under imperfect protective atmospheres and must be adapted to be cast not only in specially formulated precision casting mold media but also in commonly available foundry sand molds.
  • alloys can be provided which possess an outstanding combination of characteristics including room temperature and elevated temperature strength and ductility.
  • Another obj'ect of the invention is to provide a novel cast alloy having an outstanding combination of room temperature and elevated temperature characteristics.
  • the invention also contemplates providing castings particularly adapted to be employed at service temperatures of the order of 1200 F. and higher.
  • the present invention contemplates alloys containing in per cent by weight about 1 0% to about 20% chromium, about 5% to about 20% cobalt, about 6% to about 10% columbium, about 0.5% to about 3.50% molybdenum, up to about 0.25% carbon, up to about 12% iron, up to about 0.1% boron, up to about 0.5% zirconium, up to about 1% vanadium, up to about 1% silicon, with the balance being essentially nickel together with small amounts of impurities and deoxidants normally associated therewith.
  • the alloys of the present invention usually, and advantageously, contain about 0.0001% to about 0.01% boron, about 0.001% to about 0.5 carbon, up to about 0.3% silicon, up to about 4% iron and up to about 0.05% zirconium.
  • the alloys can be prepared in air or an inert atmosphere by first melting the required nick'el and cobalt, adding the required chromium, molybdenum and columbium (and incidental tantalum), thereafter adding the desired zirconium and boron, and finally, deoxidizing with about 0.1% by Weight of calcium silicide.
  • any tantalum accompanying the columbium is to be treated as columbium for compositional purposes.
  • the alloys of the present invention advantageously contain at least about 2.5% molybdenum.
  • alloys containing about 12% to about 16% of either chromium or cobalt exhibit an advantageous combination of character istics.
  • a heat treatment comprising a solution treatment at about 2000 F. to about 2100 F. for about 1 to about 8 hours and an aging treatment at about 1500 F. to about 1100 F.
  • Furnac'e cooling or controlled sloW cooling through the range of 1500 F. to about 1100" F. or any part thereof can effectively substitute for all or part of said aging treatment.
  • the cast alloy can be aged directly without solution heat treatment.
  • Particularly suitable heat treatments are set forth in Table I:
  • Alloys of the present invention have good rupture strength at temperatures below 1300 F.
  • alloy No.4 when heat treated by heat treatment A- (see Table I), broke after 251 hours at a stress of 95,000 p.s.i. with 2.4% elongation and 7% reduction in area.
  • the present invention is particularly applicable to the production of cast parts, compon'ents, etc., employed at temperatures up to about 1300 F.
  • Such parts, components, etc. include extrusion dies, gas turbine rotors, aircraft hardware, paper mill components, etc.
  • a casting for use at elevated temperatures up to about 1350 F. consisting essentially, in percent by weight
  • a casting for use at elevated temperatures up to about 1350" F. consisting essentially, in percent by weight, of about 12% to about 16% chromium, about 12% to about 16% cobalt, about 7% to about 9% columbium, about 2.5% to about 3.50% molybdenum, up to about 0.05% carbon, up to about 12% iron, about 0.0001% to about 0.01% boron, up to about 0.05% zirconium, up to about 0.3% silicon, not more than 0.1% total aluminum plus titanium, with the balance being essentially nickel.
  • a casting for use at 'elevated temperatures up to about 135 0 F. consisting essentially, in percent by weight, of about 10% to about 15% chromium, about 7% to about 15 cobalt, about.8% to about 9.5% columbium, about 3% molybdenum, about 3% to about 10% iron with the balance being nickel together with small amounts of deoxidants, impurities, incidental 'elements normally associated therewith and not more than about 0.1% total aluminum plus titanium, said casting being characterized in the solution treated and aged condition by room temperature tensile strength of at least about 153,600 pounds per square inch.

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)
  • Heat Treatment Of Steel (AREA)
  • Conductive Materials (AREA)
US144069A 1961-10-10 1961-10-10 Cast alloy Expired - Lifetime US3220829A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL124041D NL124041C (en)van) 1961-10-10
NL284163D NL284163A (en)van) 1961-10-10
BE623451D BE623451A (en)van) 1961-10-10
US144069A US3220829A (en) 1961-10-10 1961-10-10 Cast alloy
DEJ22467A DE1278740B (de) 1961-10-10 1962-10-06 Verwendung einer Nickel-Chrom-Legierung
GB38401/62A GB957139A (en) 1961-10-10 1962-10-10 Nickel-chromium alloys
CH1189662A CH415065A (fr) 1961-10-10 1962-10-10 Alliage de nickel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US144069A US3220829A (en) 1961-10-10 1961-10-10 Cast alloy

Publications (1)

Publication Number Publication Date
US3220829A true US3220829A (en) 1965-11-30

Family

ID=22506917

Family Applications (1)

Application Number Title Priority Date Filing Date
US144069A Expired - Lifetime US3220829A (en) 1961-10-10 1961-10-10 Cast alloy

Country Status (6)

Country Link
US (1) US3220829A (en)van)
BE (1) BE623451A (en)van)
CH (1) CH415065A (en)van)
DE (1) DE1278740B (en)van)
GB (1) GB957139A (en)van)
NL (2) NL284163A (en)van)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070034306A1 (en) * 2003-08-06 2007-02-15 Thamboo Samuel V Turbine rotor heat treatment process
US20080163963A1 (en) * 2007-01-08 2008-07-10 Ling Yang Heat Treatment Method and Components Treated According to the Method
US20100276041A1 (en) * 2007-01-08 2010-11-04 Ling Yang Heat Treatment Method and Components Treated According to the Method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674027A (en)van) *
GB510154A (en) * 1937-10-23 1939-07-24 Heraeus Vacuumschmelze Ag Improvements in and relating to alloys with enhanced mechanical properties at high temperatures
US2246078A (en) * 1937-07-31 1941-06-17 Rohn Wilhelm Valve made of cobalt-nickel-chromium-iron alloy
US2247643A (en) * 1938-12-24 1941-07-01 Rohn Wilheim Hardening cobalt-nickel-chromium-iron alloys
US2981621A (en) * 1957-07-29 1961-04-25 Sierra Metals Corp High temperature nickel-iron base alloy
US3046108A (en) * 1958-11-13 1962-07-24 Int Nickel Co Age-hardenable nickel alloy
US3069258A (en) * 1958-08-08 1962-12-18 Int Nickel Co Nickel-chromium casting alloy with niobides

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726682C (de) * 1939-01-03 1951-05-15 Heraeus Vacuumschmelze Ag Hana Verwendung von Kobalt-Nickel-Legierungen fuer bei hoher Temperatur hoch beanspruchte Werkstuecke
FR1232729A (fr) * 1958-08-08 1960-10-11 Mond Nickel Co Ltd Perfectionnements aux alliages nickel-chrome

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674027A (en)van) *
US2246078A (en) * 1937-07-31 1941-06-17 Rohn Wilhelm Valve made of cobalt-nickel-chromium-iron alloy
GB510154A (en) * 1937-10-23 1939-07-24 Heraeus Vacuumschmelze Ag Improvements in and relating to alloys with enhanced mechanical properties at high temperatures
US2247643A (en) * 1938-12-24 1941-07-01 Rohn Wilheim Hardening cobalt-nickel-chromium-iron alloys
US2981621A (en) * 1957-07-29 1961-04-25 Sierra Metals Corp High temperature nickel-iron base alloy
US3069258A (en) * 1958-08-08 1962-12-18 Int Nickel Co Nickel-chromium casting alloy with niobides
US3046108A (en) * 1958-11-13 1962-07-24 Int Nickel Co Age-hardenable nickel alloy

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070034306A1 (en) * 2003-08-06 2007-02-15 Thamboo Samuel V Turbine rotor heat treatment process
US7217330B2 (en) * 2003-08-06 2007-05-15 General Electric Company Turbine rotor heat treatment process
US20080163963A1 (en) * 2007-01-08 2008-07-10 Ling Yang Heat Treatment Method and Components Treated According to the Method
US20100276041A1 (en) * 2007-01-08 2010-11-04 Ling Yang Heat Treatment Method and Components Treated According to the Method
US8663404B2 (en) 2007-01-08 2014-03-04 General Electric Company Heat treatment method and components treated according to the method
US8668790B2 (en) 2007-01-08 2014-03-11 General Electric Company Heat treatment method and components treated according to the method

Also Published As

Publication number Publication date
BE623451A (en)van)
NL284163A (en)van)
NL124041C (en)van)
CH415065A (fr) 1966-06-15
GB957139A (en) 1964-05-06
DE1278740B (de) 1968-09-26

Similar Documents

Publication Publication Date Title
US3061426A (en) Creep resistant alloy
US3160500A (en) Matrix-stiffened alloy
US2977222A (en) Heat-resisting nickel base alloys
US3164465A (en) Nickel-base alloys
US3366478A (en) Cobalt-base sheet alloy
JPH0323613B2 (en)van)
US4288247A (en) Nickel-base superalloys
US3343950A (en) Nickel-chromium alloys useful in the production of wrought articles for high temperature application
US3973952A (en) Heat resistant alloy casting
US2809110A (en) Alloy for high temperature applications
US5108700A (en) Castable nickel aluminide alloys for structural applications
US3146136A (en) Method of heat treating nickel base alloys
US3151981A (en) Nickel-chromium-cobalt alloy
JP2955778B2 (ja) 制御熱膨張合金及びそれにより製造された製品
US5006308A (en) Nickel aluminide alloy for high temperature structural use
US5730931A (en) Heat-resistant platinum material
US3720509A (en) Nickel base alloy
US3668023A (en) Tantalum-containing precipitation-strengthened nickel-base alloy
US3220829A (en) Cast alloy
US3118763A (en) Cobalt base alloys
US4092183A (en) Directionally solidified castings
US2975051A (en) Nickel base alloy
US3540881A (en) High temperature ferrous alloy containing nickel,chromium and aluminum
US2780545A (en) High-temperature alloy
US3069258A (en) Nickel-chromium casting alloy with niobides