CN105543748B - A kind of heat treatment method of Nimonic101 nickel-base alloys - Google Patents
A kind of heat treatment method of Nimonic101 nickel-base alloys Download PDFInfo
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- CN105543748B CN105543748B CN201511021777.7A CN201511021777A CN105543748B CN 105543748 B CN105543748 B CN 105543748B CN 201511021777 A CN201511021777 A CN 201511021777A CN 105543748 B CN105543748 B CN 105543748B
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- 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
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention provides a kind of heat treatment methods of Nimonic101 nickel-base alloys, include the following steps：(1) Nimonic101 nickel-base alloy forging is subjected to solution heat treatment, come out of the stove air-cooled；(2) the Nimonic101 nickel-base alloys forging after will be air-cooled carries out intermediate heat-treatment at 1020~1080 DEG C, and keeps the temperature 8~16h, comes out of the stove air-cooled；(3) the Nimonic101 nickel-base alloy forging after will be air-cooled carries out aging strengthening model, comes out of the stove air-cooled, and Nimonic101 nickel-base alloy forging is made.The heat treatment method can significantly improve room temperature tensile intensity and yield strength, and room temperature elongation percentage and the contraction percentage of area also slightly improve compared with currently used heat treatment method.
Description
Technical field
The present invention relates to technical field of alloy thermal treatment more particularly to a kind of heat treatment sides of Nimonic101 nickel-base alloys
Method.
Background technology
Nimonic101 alloys are the Nimonic series of transformations nickel base superalloys of Britain, are sent out mainly for the manufacture of aviation
Some forging of motivation and gas turbine high temperature position.The main chemical compositions of the alloy see the table below 1.Nimonic101 is closed at present
The common heat treatment process of bodkin part see the table below 2；
Table 1
| Title | Temperature (DEG C) | Soaking time (h) | The type of cooling |
| Solid solution | 1125 | 4 | It is air-cooled |
| Timeliness | 850 | 16 | It is air-cooled |
Table 2
| Tensile strength Rm (MPa) | Yield strength Rp0.2 (MPa) | Elongation percentage A (%) |
| ≥1080 | ≥685 | ≥12 |
Table 3
Dimensional effect has a significant impact the mechanical properties for deforming nickel base superalloy, and maximum cross-section thickness is more than
After the heat treatment process heat treatment in table 2, mechanical properties are often not able to full the Nimonic101 alloy forged pieces of 40mm
Acceptance requirement in sufficient table 3.Therefore, how to solve the problems, such as that large scale Nimonic101 alloy forged piece mechanical properties are unqualified
Be the key that improve this alloy safety margin and give full play to alloy property potentiality, have important engineering application value and
Meaning.
Invention content
In view of this, the present invention provides a kind of heat treatment method of Nimonic101 nickel-base alloys, the heat treatment method with
Currently used heat treatment method, which is compared, can significantly improve room temperature tensile intensity and yield strength, and room temperature elongation percentage and section are received
Shrinkage also slightly improves.
A kind of heat treatment method of Nimonic101 nickel-base alloys, includes the following steps：
(1) Nimonic101 nickel-base alloy forging is subjected to solution heat treatment, come out of the stove air-cooled；
(2) the Nimonic101 nickel-base alloys forging after will be air-cooled carries out intermediate heat-treatment at 1020~1080 DEG C, and
8~16h is kept the temperature, is come out of the stove air-cooled；
(3) the Nimonic101 nickel-base alloy forging after will be air-cooled carries out aging strengthening model, comes out of the stove air-cooled, is made
Nimonic101 nickel-base alloys.
Preferably, solution heat treatment temperature is 1125 DEG C in the step (1), keeps the temperature 4h.
Preferably, step (2) the intermediate heat-treatment temperature is 1050~1080 DEG C, keeps the temperature 16h.
Preferably, step (3) the aging strengthening model temperature is 850 DEG C, keeps the temperature 16h.
Beneficial effects of the present invention：Intermediate heat-treatment is increased in the heat treatment method of the present invention, with currently used heat
Processing method compared to significantly improving Nimonic101 nickel-base alloy room temperature tensile intensity and yield strength, and room temperature elongation percentage and
The contraction percentage of area also slightly improves.
Specific implementation mode
The technical solution further illustrated the present invention in conjunction with the embodiments separately below.
Embodiment 1：Nimonic101 nickel-base alloys are subjected to solution heat treatment, 1125 DEG C of solution heat treatment temperature, heat penetration
4 hours are kept the temperature afterwards, comes out of the stove after heat preservation and is air-cooled to room temperature；Nimonic101 nickel-base alloys forging is at 1020 DEG C after will be air-cooled
Intermediate heat-treatment is carried out, 16 hours is kept the temperature after heat penetration, comes out of the stove after heat preservation air-cooled to room temperature；Nimonic101 nickel after will be air-cooled
Based alloy forging carries out aging strengthening model at 850 DEG C, keeps the temperature 16 hours after heat penetration, comes out of the stove after heat preservation and be air-cooled to room temperature,
Nimonic101 nickel-base alloys are made.
Embodiment 2：By Nimonic101 nickel-base alloy forging carry out solution heat treatment, 1125 DEG C of solution heat treatment temperature,
4 hours are kept the temperature after heat penetration, comes out of the stove after heat preservation and is air-cooled to room temperature；Nimonic101 nickel-base alloy forging is 1050 after will be air-cooled
Intermediate heat-treatment is carried out at DEG C, is kept the temperature 16 hours after heat penetration, is come out of the stove after heat preservation air-cooled to room temperature；After air-cooled
Nimonic101 nickel-base alloys forging carries out aging strengthening model at 850 DEG C, keeps the temperature 16 hours after heat penetration, comes out of the stove after heat preservation
It is air-cooled to room temperature, Nimonic101 nickel-base alloys are made.
Embodiment 3：By Nimonic101 nickel-base alloy forging carry out solution heat treatment, 1125 DEG C of solution heat treatment temperature,
4 hours are kept the temperature after heat penetration, comes out of the stove after heat preservation and is air-cooled to room temperature；Nimonic101 nickel-base alloy forging is 1080 after will be air-cooled
Intermediate heat-treatment is carried out at DEG C, is kept the temperature 16 hours after heat penetration, is come out of the stove after heat preservation air-cooled to room temperature；After air-cooled
Nimonic101 nickel-base alloys forging carries out aging strengthening model at 850 DEG C, keeps the temperature 16 hours after heat penetration, comes out of the stove after heat preservation
It is air-cooled to room temperature, Nimonic101 nickel-base alloys are made.
Comparative example：Nimonic101 nickel-base alloy forging is subjected to solution heat treatment, 1125 DEG C of solution heat treatment temperature, heat
Heat preservation 4 hours, come out of the stove after heat preservation and are air-cooled to room temperature after thoroughly；Nimonic101 nickel-base alloys forging is at 850 DEG C after will be air-cooled
Lower carry out aging strengthening model keeps the temperature 16 hours after heat penetration, comes out of the stove after heat preservation and be air-cooled to room temperature, and it is Ni-based that Nimonic101 is made
Alloy.
It is strong to tensile strength Rm (MPa), surrender in Examples 1 to 3 and comparative example using test method generally in the art
Degree Rp0.2 (MPa), elongation percentage A (%) and contraction percentage of area Z (%) are measured, measurement result such as the following table 4：
Table 4
Intermediate heat-treatment is increased in the heat treatment method of the present invention, is significantly carried compared with currently used heat treatment method
High Nimonic101 nickel-base alloy room temperature tensile intensity and yield strength, and room temperature elongation percentage and the contraction percentage of area also slightly carry
It is high.
It should be noted that and understand, in the spirit and scope for not departing from appended claims the claimed invention
In the case of, various modifications and improvements can be made to the present invention of foregoing detailed description.It is therefore desirable to the technical solution of protection
Range do not limited by given any specific exemplary teachings.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological processes, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, the selection etc. of concrete mode all fall within the present invention's
Within protection domain and the open scope.
Claims (3)
1. a kind of heat treatment method of Nimonic101 nickel-base alloys, which is characterized in that include the following steps：
(1) Nimonic101 nickel-base alloy forging is subjected to solution heat treatment, come out of the stove air-cooled；
Wherein, solution heat treatment temperature is 1125 DEG C, keeps the temperature 4h；
(2) the Nimonic101 nickel-base alloys forging after will be air-cooled carries out intermediate heat-treatment at 1050~1080 DEG C, and keeps the temperature 8
~16h comes out of the stove air-cooled；
(3) the Nimonic101 nickel-base alloy forging after will be air-cooled carries out aging strengthening model, comes out of the stove air-cooled, and Nimonic101 is made
Nickel-base alloy.
2. heat treatment method according to claim 1, which is characterized in that step (2) the intermediate heat-treatment temperature is
1050~1080 DEG C, keep the temperature 16h.
3. heat treatment method according to claim 1, which is characterized in that step (3) the aging strengthening model temperature is 850
DEG C, keep the temperature 16h.
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| CN105543748B true CN105543748B (en) | 2018-10-02 |
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| CN111041394A (en) * | 2019-12-31 | 2020-04-21 | 安徽应流铸业有限公司 | Heat treatment process method for forging nickel-based alloy |
| CN113684353B (en) * | 2021-10-27 | 2022-02-11 | 江苏省沙钢钢铁研究院有限公司 | GH2132 alloy and preparation method thereof |
| CN114934157A (en) * | 2022-07-01 | 2022-08-23 | 丹阳市金星镍材有限公司 | Heat treatment process of nickel-based high-temperature alloy for cold heading |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB777703A (en) * | 1953-07-28 | 1957-06-26 | Bristol Aero Engines Ltd | Improvements in or relating to the heat treatment of nimonic alloys |
| CA2287116C (en) * | 1999-10-25 | 2003-02-18 | Mitsubishi Heavy Industries, Ltd. | Process for the heat treatment of a ni-base heat-resisting alloy |
| CN103103465B (en) * | 2012-12-10 | 2014-12-10 | 无锡透平叶片有限公司 | GH4698 alloy thermal treatment method and application thereof |
| JP6223743B2 (en) * | 2013-08-07 | 2017-11-01 | 株式会社東芝 | Method for producing Ni-based alloy |
| CN104561867A (en) * | 2013-10-29 | 2015-04-29 | 青岛天恒机械有限公司 | Improved thermal treatment process for DD3 monocrystal high-temperature alloy |
| ITVA20130061A1 (en) * | 2013-12-05 | 2015-06-06 | Foroni Spa | AGING BASE NICKEL BASE CONTAINING CHROME, MOLIBDENO, NIOBIO, TITANIUM; HAVING HIGH MECHANICAL CHARACTERISTICS AND HIGH RESISTANCE TO CORROSION IN AGGRESSIVE ENVIRONMENTS THAT CAN MEET IN THE WELLS FOR THE EXTRACTION OF OIL AND GAS NAT |
| CN104746145A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Heat treatment process of nickel base single crystal superalloy |
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Non-Patent Citations (2)
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| Hochtemperaturverhalten von Werkstoffen aus neuartig gefertigten Gasturbinenschaufeln;K. H. Kloos, J. Granacher, Th. Windecker;《Materialwissenschaft Und Werkstofftechnik》;19940630;第25卷(第6期);235-243 * |
| The Relaxation Behavior of High Chromium-Ni Base Superalloys;Mohamed Nazmy, Claus Gerdes;《Advanced Materials Research》;20110704;第278卷;321-326 * |
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