US3220829A - Cast alloy - Google Patents
Cast alloy Download PDFInfo
- 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
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)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL124041D NL124041C (de) | 1961-10-10 | ||
NL284163D NL284163A (de) | 1961-10-10 | ||
BE623451D BE623451A (de) | 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 (de) |
BE (1) | BE623451A (de) |
CH (1) | CH415065A (de) |
DE (1) | DE1278740B (de) |
GB (1) | GB957139A (de) |
NL (2) | NL284163A (de) |
Cited By (3)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB674027A (de) * | ||||
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)
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 |
-
0
- NL NL124041D patent/NL124041C/xx active
- BE BE623451D patent/BE623451A/xx unknown
- NL NL284163D patent/NL284163A/xx unknown
-
1961
- 1961-10-10 US US144069A patent/US3220829A/en not_active Expired - Lifetime
-
1962
- 1962-10-06 DE DEJ22467A patent/DE1278740B/de active Pending
- 1962-10-10 GB GB38401/62A patent/GB957139A/en not_active Expired
- 1962-10-10 CH CH1189662A patent/CH415065A/fr unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB674027A (de) * | ||||
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)
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 (de) | |
NL124041C (de) | |
NL284163A (de) | |
CH415065A (fr) | 1966-06-15 |
DE1278740B (de) | 1968-09-26 |
GB957139A (en) | 1964-05-06 |
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 (de) | ||
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 | |
US3146136A (en) | Method of heat treating nickel base alloys | |
US3151981A (en) | Nickel-chromium-cobalt alloy | |
US5108700A (en) | Castable nickel aluminide alloys for structural applications | |
JP2955778B2 (ja) | 制御熱膨張合金及びそれにより製造された製品 | |
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 | |
US5006308A (en) | Nickel aluminide alloy for high temperature structural use | |
US2975051A (en) | Nickel base alloy | |
US2780545A (en) | High-temperature alloy | |
US3069258A (en) | Nickel-chromium casting alloy with niobides | |
US3540881A (en) | High temperature ferrous alloy containing nickel,chromium and aluminum | |
US3314784A (en) | Cobalt-base alloy resistant to thermal shock |