GB1268844A - Thermomechanical strengthening of the nickel-base superalloys - Google Patents
Thermomechanical strengthening of the nickel-base superalloysInfo
- Publication number
- GB1268844A GB1268844A GB3440669A GB3440669A GB1268844A GB 1268844 A GB1268844 A GB 1268844A GB 3440669 A GB3440669 A GB 3440669A GB 3440669 A GB3440669 A GB 3440669A GB 1268844 A GB1268844 A GB 1268844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- solvus
- nickel
- heat
- distribution
- 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
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)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
1,268,844. Heat-treating nickel alloys. UNITED AIRCRAFT CORP. July 8, 1969 [July 19, 1968], No.34406/69. Heading C7A. Nickel-base super alloys are heat-treated to form a homogeneous distribution of precipitated γ<SP>1</SP> phase, the latter having an interparticle spacing not exceeding 5 microns and forming a volume fraction of not less than 25%; they are then worked at a temperature not exceeding the solvus temperature of the γ<SP>1</SP> phase or the gross recrystallization temperature, but not less than the minimum recovery temperature to effect a reduction in area of at least 15% without impairing the volume fraction or distribution of the γ<SP>1</SP>. The alloy is then further heat-treated to stabilise it and provide additional precipitation strengthening. The first step may consist of solution treatment followed by ageing at a temperature between the γ<SP>1</SP> solvus and the minimum recovery temperature. Working may be carried out near the minimum recovery temperature, when a random dislocation distribution is obtained, or near the solvus temperature, when the dislocations are aligned regularly along the polygonal sub-cell boundaries.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74601368A | 1968-07-19 | 1968-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1268844A true GB1268844A (en) | 1972-03-29 |
Family
ID=24999139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3440669A Expired GB1268844A (en) | 1968-07-19 | 1969-07-08 | Thermomechanical strengthening of the nickel-base superalloys |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4822567B1 (en) |
BE (1) | BE736221A (en) |
CH (1) | CH532662A (en) |
DE (1) | DE1936015A1 (en) |
FR (1) | FR2024095A1 (en) |
GB (1) | GB1268844A (en) |
NL (1) | NL6911037A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE28681E (en) | 1973-04-02 | 1976-01-13 | High temperature alloys | |
USRE29920E (en) | 1975-07-29 | 1979-02-27 | High temperature alloys | |
GB2225790A (en) * | 1988-12-13 | 1990-06-13 | Gen Electric | Fatigue crack growth resistant nickel-base article and alloy and method of making. |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4793868A (en) * | 1986-09-15 | 1988-12-27 | General Electric Company | Thermomechanical method of forming fatigue crack resistant nickel base superalloys and product formed |
CN109724556B (en) * | 2017-10-27 | 2020-08-21 | 中国科学院金属研究所 | Method for evaluating recrystallization tendency in precision casting process of nickel-based single crystal superalloy |
-
1969
- 1969-07-08 GB GB3440669A patent/GB1268844A/en not_active Expired
- 1969-07-15 DE DE19691936015 patent/DE1936015A1/en active Pending
- 1969-07-15 CH CH1075969A patent/CH532662A/en not_active IP Right Cessation
- 1969-07-16 JP JP5672569A patent/JPS4822567B1/ja active Pending
- 1969-07-17 BE BE736221D patent/BE736221A/xx unknown
- 1969-07-18 NL NL6911037A patent/NL6911037A/xx unknown
- 1969-07-18 FR FR6923955A patent/FR2024095A1/fr not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE28681E (en) | 1973-04-02 | 1976-01-13 | High temperature alloys | |
USRE29920E (en) | 1975-07-29 | 1979-02-27 | High temperature alloys | |
GB2225790A (en) * | 1988-12-13 | 1990-06-13 | Gen Electric | Fatigue crack growth resistant nickel-base article and alloy and method of making. |
GB2225790B (en) * | 1988-12-13 | 1993-06-02 | Gen Electric | Fatigue crack growth resistant nickel-base article and alloy and method for making |
Also Published As
Publication number | Publication date |
---|---|
JPS4822567B1 (en) | 1973-07-06 |
BE736221A (en) | 1969-12-31 |
FR2024095A1 (en) | 1970-08-28 |
CH532662A (en) | 1973-01-15 |
NL6911037A (en) | 1970-01-21 |
DE1936015A1 (en) | 1970-01-22 |
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