CN110016589A - A kind of High-strength copper-nickel alloy material and preparation method thereof - Google Patents
A kind of High-strength copper-nickel alloy material and preparation method thereof Download PDFInfo
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- CN110016589A CN110016589A CN201910382137.0A CN201910382137A CN110016589A CN 110016589 A CN110016589 A CN 110016589A CN 201910382137 A CN201910382137 A CN 201910382137A CN 110016589 A CN110016589 A CN 110016589A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/002—Alloys based on nickel or cobalt with copper as the next major constituent
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- 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
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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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Abstract
The present invention relates to Material Fields, and in particular to a kind of High-strength copper-nickel alloy material and preparation method thereof.A kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni 60-65%, Cu 30-35%, graphene 0.1-0.4%, Si 0.2-0.6%, Fe 1.0-3.0%, Mn 1.0-2.0%.The addition that the High-strength copper-nickel alloy material of the embodiment of the present invention passes through graphene, it interacts to form a large amount of reticular structures with other compositions, it is obviously improved the intensity and toughness of material, tensile strength reaches as high as 920MPa, and yield strength reaches as high as 780MPa, hardness can reach HRC30, elongation percentage is 26%, and reduction of area 35%, mechanical property is higher by 1.6 times or so compared with the prior art, and preparation process is simple, requires production equipment low.
Description
Technical field
The present invention relates to Material Fields, and in particular to a kind of High-strength copper-nickel alloy material and preparation method thereof.
Background technique
400 alloy of Monel be it is a kind of seawater, chemical solvent, ammonia sulphur chlorine, hydrogen chloride, various acid mediums such as sulfuric acid,
Hydrofluoric acid, hydrochloric acid, phosphoric acid, organic acid, with the nickel-base alloy material of good corrosion resistance in alkaline medium, salt and fuse salt
Material is widely used in oceanographic equipment, in facility.
In the prior art, generally the tensile strength of forging 400 alloy of state Meng Naier is about in 500MPa or so, for as using in oil field
This equipment of submersible electric pump set tube components, this part generally use 400 alloy of Meng Naier, 400 alloys are on the one hand required to have
Energy is had good corrosion resistance, on the one hand requires 400 alloys to want intensity with higher, 400 alloy of promotion used at present is strong
The method that the method for degree generally uses cold drawing is promoted, and concrete technology is: forging 400 alloy of Meng Naier passes through deflection about
Then 40% cold drawing keeps the temperature 6 hours progress stress relief annealings, the Drawing-anneal state Meng Naier finally obtained at 580 DEG C
The alloy material of 400 tensile strength about 800MPa or so.
But when the pole in actual production, being greater than 100mm or so for diameter will carry out drawing deformation amount and be more than 40%
The drawing bed more than 500 tons or more is needed to carry out drawing, and 400 alloy of Meng Naier can generate apparent processing firmly in drawing process
Change phenomenon, dramatically increase the drawing resistance for pulling out bed, the degree of injury of equipment is increased.
Summary of the invention
The present invention provides a kind of High-strength copper-nickel alloy materials, it is intended to solve existing high-intensity nickel alloy material preparation work
The technical issues of skill is complicated, the high requirements on the equipment.
A kind of High-strength copper-nickel alloy material provided in an embodiment of the present invention, the weight percentage of each raw material are as follows: Ni
62-64%, Cu 32-34%, graphene 0.15-0.3%, Si 0.3-0.5%, Fe 1.5-2.5%, Mn 1.3-1.8%.
The embodiment of the invention also provides a kind of preparation methods of High-strength copper-nickel alloy material, specifically include following step
It is rapid:
Ni, Cu, graphene, Fe, Si, Mn are mixed and carry out melting once and obtains the first alloy molten liquid；
Degasifier is added into the first alloy molten liquid, and carries out secondary smelting and obtains the second alloy molten liquid；
The second alloy melting liquid is poured into cast iron die and is formed, alloy cast ingot is obtained；
It is heated to 1100-1200 DEG C by the alloy cast ingot and keeps the temperature 3-5h to carry out conducting forging processing acquisition wrought alloy；
By the wrought alloy under the conditions of 550-600 DEG C isothermal holding 45-75min, and carry out stress relief annealing acquisition
High-strength copper-nickel alloy material.
The utility model has the advantages that addition of the High-strength copper-nickel alloy material of the embodiment of the present invention by graphene, with other compositions
Interaction forms a large amount of reticular structures, has been obviously improved the intensity and toughness of material, tensile strength reaches as high as
920MPa, yield strength reach as high as 780MPa, and hardness can reach HRC30, elongation percentage 26%, reduction of area 35%, mechanical property
1.6 times or so are higher by compared with the prior art, and preparation process is simple, production equipment are required low.
Specific embodiment
In order to more fairly set out technology contents of the invention, it is described in detail in conjunction with specific embodiments herein, it is clear that
Cited embodiment is the preferred embodiment of the technical program, and those skilled in the art can be according to disclosed skill
The other technologies scheme that art content is apparent from still falls within protection scope of the present invention.
In an embodiment of the present invention, a kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni
60-65%, Cu 30-35%, graphene 0.1-0.4%, Si 0.2-0.6%, Fe 1.0-3.0%, Mn 1.0-2.0%.
In an embodiment of the present invention, a kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are preferred are as follows:
Ni 62-64%, Cu 32-34%, graphene 0.15-0.3%, Si 0.3-0.5%, Fe 1.5-2.5%, Mn 1.3-
1.8%.
In an embodiment of the present invention, a kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are preferred are as follows:
Ni 62.2%, Cu 33.4%, graphene 0.3%, Si 0.5%, Fe 1.8%, Mn 1.8%.
In embodiments of the present invention, a kind of preparation method of High-strength copper-nickel alloy material, specifically includes the following steps:
Ni, Cu, graphene, Fe, Si, Mn are mixed and carry out melting once and obtains the first alloy molten liquid；
Degasifier is added into the first alloy molten liquid, and carries out secondary smelting and obtains the second alloy molten liquid；
The second alloy melting liquid is poured into cast iron die and is formed, alloy cast ingot is obtained；
It is heated to 1100-1200 DEG C by the alloy cast ingot and keeps the temperature 3-5h to carry out conducting forging processing acquisition wrought alloy；
By the wrought alloy under the conditions of 550-600 DEG C isothermal holding 45-75min, and carry out stress relief annealing acquisition
High-strength copper-nickel alloy material.
In embodiments of the present invention, Ni, Cu, graphene, Fe, Si, Mn are mixed and carries out melting once and obtain the first conjunction
Mixed process specifically includes in golden molten liquid step:
Graphene is placed in ure iron pipe, the upper disc of the ure iron pipe is welded with pure iron plate, and is bored in the upper disc
There are multiple apertures, obtains the ure iron pipe containing graphene；The ure iron pipe containing graphene is mixed with Ni, Cu, Si, Mn
It closes.
In embodiments of the present invention, it is described Ni, Cu, graphene, Fe, Si, Mn are mixed and carry out melting once obtain the
Melting once process specifically includes in one alloy molten liquid:
Ni, Cu, graphene, Fe, Si, Mn are mixed, and melting 1.8-2.5h is obtained under the conditions of temperature is 1580-1700 DEG C
Obtain melting liquid I；
The melting liquid I is cooled to 1380-1500 DEG C and 0.5-0.8h is kept to obtain melting liquid II；
Melting 0.4-0.6h obtains the first alloy molten liquid under the conditions of the melting liquid II is warming up to 1580-1700 DEG C.
In embodiments of the present invention, the described second alloy melting liquid is poured into cast iron die forms, and is closed
Golden ingot casting process specifically includes:
The second alloy molten liquid is added into cast iron die, by the cast iron containing alloy molten liquid after 20-40min
Mold takes out investment into water, and alloy cast ingot is taken out after 45-75min.
In embodiments of the present invention, degasifier is that the nickel magnesium alloy for the nickel magnesium alloy 20% that magnesium content is 20% or copper magnesium close
One of gold, the additional amount of degasifier are the 0.08-0.12% of alloy material gross mass.
In embodiments of the present invention, described that degasifier is added into the first alloy molten liquid, and carry out secondary smelting acquisition
The process conditions of secondary smelting in second alloy molten liquid are as follows: smelting temperature is 1350-1450 DEG C, smelting time 25-
45min。
Hereinafter, in conjunction with specific embodiments, carrying out expansion explanation to the solution of the present invention, that is, effect.
Embodiment 1:
A kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni 62.3%, Cu 33%, graphite
Alkene 0.2%, Si 0.5%, Fe 2.0%, Mn 2.0%.
Each raw material is weighed according to the percentage composition of above-mentioned raw materials.Graphene is placed in the ure iron pipe of diameter 20mm, wall thickness 2mm
It is interior, the pure iron plate of the thickness 2mm welding of the upper surface of pipe disc, and aperture 3 of diameter 2mm are drilled out on a disc, by graphitiferous
Alkene iron pipe is mixed with Ni, Cu, Si, Mn is placed in intermediate frequency vaccum sensitive stove melting 2h under the conditions of 1600 DEG C, then will cooling
To 1400 DEG C and 40min is kept, 1600 DEG C of continuation melting 30min is warming up to again and obtains the first alloy molten liquid；Above-mentioned
The nickel magnesium alloy that the degasifier magnesium content that alloy material gross mass 0.1% is added in one alloy molten liquid is 20% carries out degasification,
And 1400 DEG C of holding 30min are cooled to, obtain the second alloy molten liquid；Second alloy molten liquid is poured into the cast iron of 180mm
In mould, vacuum drying oven bell is opened after 30 minutes, is directly thrown into water after cast iron die is hung out, casts alloy after 1 hour
Ingot is removed from the molds；Alloy cast ingot is heated to 1150 DEG C in electric furnace, heat preservation carried out conducting forging processing after 4 hours, utilized 2 tons
Pneumatic hammer carries out flat-die forging, and the stick at diameter 60mm is wrought alloy, keeps the temperature at 580 DEG C to forging gained alloy
30min carries out stress relief annealing and obtains High-strength copper-nickel alloy material.
Embodiment 2
A kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni 62.2%, Cu 33.4%, stone
Black alkene 0.3%, Si 0.5%, Fe 1.8%, Mn 1.8%.
Each raw material is weighed according to the percentage composition of above-mentioned raw materials.Graphene is placed in the ure iron pipe of diameter 20mm, wall thickness 2mm
It is interior, the pure iron plate of the thickness 2mm welding of the upper surface of pipe disc, and aperture 3 of diameter 2mm are drilled out on a disc, by graphitiferous
Alkene iron pipe is mixed with Ni, Cu, Si, Mn is placed in intermediate frequency vaccum sensitive stove melting 100min under the conditions of 1700 DEG C, then will
It is cooled to 1500 DEG C and keeps 40min, be warming up to 1700 DEG C of continuation melting 20min again and obtain the first alloy molten liquid；Upper
State the copper magnesium alloy progress for being added that the degasifier magnesium content of alloy material gross mass 0.08% is 20% in the first alloy molten liquid
Degasification, and 1500 DEG C of holding 30min are cooled to, obtain the second alloy molten liquid；Second alloy molten liquid is poured into 180mm's
In pig mold, vacuum drying oven bell is opened after 30 minutes, is directly thrown into water after cast iron die is hung out, will be closed after 1 hour
Golden ingot casting is removed from the molds；Alloy cast ingot is heated to 1150 DEG C in electric furnace, heat preservation carried out conducting forging processing after 4 hours, benefit
Flat-die forging is carried out with 2 tons of pneumatic hammers, the stick at diameter 80mm is wrought alloy, is protected at 580 DEG C to forging gained alloy
Warm 70min carries out stress relief annealing and obtains High-strength copper-nickel alloy material.
Embodiment 3
A kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni 62.3%, Cu 34%, graphite
Alkene 0.1%, Si 0.3%, Fe 1.7%, Mn 1.7%.
Each raw material is weighed according to the percentage composition of above-mentioned raw materials.Graphene is placed in the ure iron pipe of diameter 20mm, wall thickness 2mm
It is interior, the pure iron plate of the thickness 2mm welding of the upper surface of pipe disc, and aperture 3 of diameter 2mm are drilled out on a disc, by graphitiferous
Alkene iron pipe is mixed with Ni, Cu, Si, Mn is placed in intermediate frequency vaccum sensitive stove melting 150min under the conditions of 1650 DEG C, then will
It is cooled to 1450 DEG C and keeps 60min, be warming up to 1650 DEG C of continuation melting 40min again and obtain the first alloy molten liquid；Upper
State the copper magnesium alloy progress for being added that the degasifier magnesium content of alloy material gross mass 0.12% is 20% in the first alloy molten liquid
Degasification, and 1500 DEG C of holding 30min are cooled to, obtain the second alloy molten liquid；Second alloy molten liquid is poured into 180mm's
In pig mold, vacuum drying oven bell is opened after 30 minutes, is directly thrown into water after cast iron die is hung out, will be closed after 1 hour
Golden ingot casting is removed from the molds；Alloy cast ingot is heated to 1150 DEG C in electric furnace, heat preservation carried out conducting forging processing after 4 hours, benefit
Flat-die forging is carried out with 2 tons of pneumatic hammers, the stick at diameter 60mm is wrought alloy, is protected at 580 DEG C to forging gained alloy
Warm 30min carries out stress relief annealing and obtains High-strength copper-nickel alloy material.
Embodiment 4
A kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni 60%, Cu 35%, graphene
0.3%, Si 0.6%, Fe 2.5%, Mn 1.6%.
Each raw material is weighed according to the percentage composition of above-mentioned raw materials.Graphene is placed in the ure iron pipe of diameter 20mm, wall thickness 2mm
It is interior, the pure iron plate of the thickness 2mm welding of the upper surface of pipe disc, and aperture 3 of diameter 2mm are drilled out on a disc, by graphitiferous
Alkene iron pipe is mixed with Ni, Cu, Si, Mn is placed in intermediate frequency vaccum sensitive stove melting 100min under the conditions of 1700 DEG C, then will
It is cooled to 1500 DEG C and keeps 40min, be warming up to 1700 DEG C of continuation melting 20min again and obtain the first alloy molten liquid；Upper
State the copper magnesium alloy progress for being added that the degasifier magnesium content of alloy material gross mass 0.08% is 20% in the first alloy molten liquid
Degasification, and 1500 DEG C of holding 30min are cooled to, obtain the second alloy molten liquid；Second alloy molten liquid is poured into 180mm's
In pig mold, vacuum drying oven bell is opened after 30 minutes, is directly thrown into water after cast iron die is hung out, will be closed after 1 hour
Golden ingot casting is removed from the molds；Alloy cast ingot is heated to 1150 DEG C in electric furnace, heat preservation carried out conducting forging processing after 4 hours, benefit
Flat-die forging is carried out with 2 tons of pneumatic hammers, the stick at diameter 80mm is wrought alloy, is protected at 550 DEG C to forging gained alloy
Warm 70min carries out stress relief annealing and obtains High-strength copper-nickel alloy material.
Embodiment 5
A kind of High-strength copper-nickel alloy material, the weight percentage of each raw material are as follows: Ni 65%, Cu 30%, graphene
0.4%, Si 0.2%, Fe 3.0%, Mn 1.4%.
Each raw material is weighed according to the percentage composition of above-mentioned raw materials.Graphene is placed in the ure iron pipe of diameter 20mm, wall thickness 2mm
It is interior, the pure iron plate of the thickness 2mm welding of the upper surface of pipe disc, and aperture 3 of diameter 2mm are drilled out on a disc, by graphitiferous
Alkene iron pipe is mixed with Ni, Cu, Si, Mn is placed in intermediate frequency vaccum sensitive stove melting 100min under the conditions of 1700 DEG C, then will
It is cooled to 1500 DEG C and keeps 40min, be warming up to 1700 DEG C of continuation melting 20min again and obtain the first alloy molten liquid；Upper
State the copper magnesium alloy progress for being added that the degasifier magnesium content of alloy material gross mass 0.08% is 20% in the first alloy molten liquid
Degasification, and 1500 DEG C of holding 30min are cooled to, obtain the second alloy molten liquid；Second alloy molten liquid is poured into 180mm's
In pig mold, vacuum drying oven bell is opened after 30 minutes, is directly thrown into water after cast iron die is hung out, will be closed after 1 hour
Golden ingot casting is removed from the molds；Alloy cast ingot is heated to 1150 DEG C in electric furnace, heat preservation carried out conducting forging processing after 4 hours, benefit
Flat-die forging is carried out with 2 tons of pneumatic hammers, the stick at diameter 80mm is wrought alloy, is protected at 600 DEG C to forging gained alloy
Warm 70min carries out stress relief annealing and obtains High-strength copper-nickel alloy material.
Comparative example 1
Graphene in embodiment 3 is substituted for common carbon dust, other compositions are identical with preparation method.
Performance test
The alloy material that embodiment 1-3 and comparative example 1 are obtained carry out tensile strength, yield strength, hardness, elongation percentage and
The Mechanics Performance Testings such as reduction of area, the results are shown in Table 1.
The mechanical performance data of 1 corronil of table
It follows that the nickel magnesium alloy material that technical solution of the present invention obtains has good mechanical property, in graphene
When content reaches 0.3%, tensile strength is up to 920MPa, and yield strength is up to 780MPa, and hardness is up to HRC30.According to reality
A 1-3 is applied it is found that tensile strength, yield strength and hardness enhance, and elongation percentage and reduction of area when graphene content is higher in alloy
Rate reduces accordingly, meanwhile, according to embodiment 3 and comparative example 1 it is found that graphene and other raw material phase interactions in alloy material
With forming a large amount of network-like structure in alloy structure, be obviously improved the intensity and toughness of material.In addition, the application skill
The preparation process that art scheme obtains High-strength copper-nickel alloy is simple, requires production equipment low.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out change and modification appropriate.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In use some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1. a kind of High-strength copper-nickel alloy material, which is characterized in that the weight percentage of each raw material are as follows: Ni 60-65%, Cu
30-35%, graphene 0.1-0.4%, Si 0.2-0.6%, Fe 1.0-3.0%, Mn 1.0-2.0%.
2. High-strength copper-nickel alloy material according to claim 1, which is characterized in that the weight percentage of each raw material
Are as follows: Ni 62-64%, Cu 32-34%, graphene 0.15-0.3%, Si 0.3-0.5%, Fe 1.5-2.5%, Mn 1.3-1.8%.
3. High-strength copper-nickel alloy material according to claim 1, which is characterized in that the weight percentage of each raw material
Are as follows: Ni 62.2%, Cu 33.4%, graphene 0.3%, Si 0.5%, Fe 1.8%, Mn 1.8%.
4. a kind of preparation method of High-strength copper-nickel alloy material, which is characterized in that specifically includes the following steps:
Ni, Cu, graphene, Fe, Si, Mn are mixed and carry out melting once and obtains the first alloy molten liquid；
Degasifier is added into the first alloy molten liquid, and carries out secondary smelting and obtains the second alloy molten liquid；
The second alloy melting liquid is poured into cast iron die and is formed, alloy cast ingot is obtained；
It is heated to 1100-1200 DEG C by the alloy cast ingot and keeps the temperature 3-5h to carry out conducting forging processing acquisition wrought alloy；
By the wrought alloy under the conditions of 550-600 DEG C isothermal holding 45-75min, and carry out stress relief annealing obtain it is high-strength
Spend corronil material.
5. the preparation method of High-strength copper-nickel alloy material according to claim 4, which is characterized in that it is described by Ni, Cu,
Graphene, Fe, Si, Mn mix and carry out mixed process in melting once the first alloy molten liquid step of acquisition and specifically include:
Graphene is placed in ure iron pipe, the upper disc of the ure iron pipe is welded with pure iron plate, and is drilled in the upper disc more
A aperture obtains the ure iron pipe containing graphene；
The ure iron pipe containing graphene is mixed with Ni, Cu, Si, Mn.
6. the preparation method of High-strength copper-nickel alloy material according to claim 4, which is characterized in that it is described by Ni, Cu,
Graphene, Fe, Si, Mn mix and carry out melting once process in melting once the first alloy molten liquid of acquisition and specifically include:
Ni, Cu, graphene, Fe, Si, Mn are mixed, and melting 1.8-2.5h is melted under the conditions of temperature is 1580-1700 DEG C
Refine liquid I；
The melting liquid I is cooled to 1380-1500 DEG C and 0.5-0.8h is kept to obtain melting liquid II；
Melting 0.4-0.6h obtains the first alloy molten liquid under the conditions of the melting liquid II is warming up to 1580-1700 DEG C.
7. the preparation method of High-strength copper-nickel alloy material according to claim 4, which is characterized in that described by described
Two alloy melting liquid, which are poured into cast iron die, to be formed, and is obtained alloy cast ingot process and is specifically included:
The second alloy molten liquid is added into cast iron die, by the cast iron die containing alloy molten liquid after 20-40min
Investment is taken out into water, alloy cast ingot is taken out after 45-75min.
8. the preparation method of High-strength copper-nickel alloy material according to claim 4, which is characterized in that the degasifier is
One of nickel magnesium alloy or copper magnesium alloy that magnesium content is 20%.
9. the preparation method of High-strength copper-nickel alloy material according to claim 4, which is characterized in that the degasifier
Additional amount is the 0.08-0.12% of alloy material gross mass.
10. the preparation method of High-strength copper-nickel alloy material according to claim 4, which is characterized in that described to first
Degasifier is added in alloy molten liquid, and carries out the process conditions that secondary smelting obtains secondary smelting in the second alloy molten liquid
Are as follows:
Smelting temperature is 1350-1450 DEG C, smelting time 25-45min.
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| CN112575224A (en) * | 2020-11-27 | 2021-03-30 | 成都先进金属材料产业技术研究院有限公司 | high-Si-content nickel-copper-containing corrosion-resistant alloy and preparation method thereof |
| CN112575224B (en) * | 2020-11-27 | 2022-02-01 | 成都先进金属材料产业技术研究院股份有限公司 | high-Si-content nickel-copper-containing corrosion-resistant alloy and preparation method thereof |
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