CN106588064A - Solder and connection method of carbon / carbon composites and nickel-base superalloys - Google Patents
Solder and connection method of carbon / carbon composites and nickel-base superalloys Download PDFInfo
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- CN106588064A CN106588064A CN201611116915.4A CN201611116915A CN106588064A CN 106588064 A CN106588064 A CN 106588064A CN 201611116915 A CN201611116915 A CN 201611116915A CN 106588064 A CN106588064 A CN 106588064A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
- C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
- C04B2237/121—Metallic interlayers based on aluminium
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
- C04B2237/123—Metallic interlayers based on iron group metals, e.g. steel
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/38—Fiber or whisker reinforced
- C04B2237/385—Carbon or carbon composite
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/405—Iron metal group, e.g. Co or Ni
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/58—Forming a gradient in composition or in properties across the laminate or the joined articles
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/60—Forming at the joining interface or in the joining layer specific reaction phases or zones, e.g. diffusion of reactive species from the interlayer to the substrate or from a substrate to the joining interface, carbide forming at the joining interface
Abstract
Carbon / carbon composite material and nickel-based superalloy, and the solder comprise the following components, Ti powder, NiAl powder and Ni powder. The TiC is formed by the reaction of the active element Ti with the pyrolytic carbon of the carbon / carbon composite. The TiC and NiAl are chemically adsorbed by TiC and NiAl to obtain carbon / carbon composites penetrating part of NiAl on the surface. Strong interface with carbon / carbon composites / carbon / carbon composites + TiC + NiAl / NiAl layered transition reaction layer. Finally, the nickel powder is used to brush the surface. By hot pressing, the connection of carbon / carbon composite material and nickel-based superalloy can be got. The connection effectively reduces the mismatching coefficient of thermal expansion coefficient between the carbon / carbon composite material and the nickel-based superalloy, reduces the residual thermal stress between the carbon / carbon composite material and the nickel-based superalloy, and the shear strength of the carbon / carbon composite material and nickel-based superalloy joint have reached 45 - 60MPa.
Description
Technical field
The present invention relates to a kind of solder and method of attachment of carbon/carbon compound material with nickel base superalloy.Belong to xenogenesis material
The method of attachment technical field of material.
Background technology
Carbon/carbon compound material has high specific strength, specific modulus, a fracture toughness, good heat stability, chemical stability,
Dimensional stability, and the advantages of high temperature resistant so as to become High Performance Aeroengine hot-end component and aircraft thermal protection
The ideal material of system.But, easily oxidation and the application of carbon/carbon compound material is strongly limit the characteristics of low-expansion coefficient.
The features such as metal material, particularly intermetallic compound have light specific gravity, intensity height and excellent in oxidation resistance, is boat of new generation
One of candidate material of aerospace vehicle.It is super using the high temperature resistant of metal material, antioxidation, high intensity, high thermal conductivity, and high temperature
Plasticity and high heat resistanceheat resistant pressure property, are combined with C/C materials, are current important developments to prepare the material for having the two advantage concurrently
Direction.
In high temperature alloy field, iron-based and cobalt base superalloy are compared, nickel base superalloy has higher elevated temperature strength
And structure stability, it is widely used in making the hot-end component of aero-jet engine and industry gas turbine.Modern gas whirlpool
The material that turbine has 50% to improve quality adopts high temperature alloy, and wherein the consumption of nickel base superalloy is in engine material
Account for 40%.Nickel-base alloy has Good All-around Property at middle and high temperature, and suitable long-time works at high temperature, Neng Goukang
Corrosion and abrasion.Nickel base superalloy is mainly used in the structure member worked at 950-1050 DEG C of aerospace field, such as aviation
Working-blade, the turbine disk, combustor of electromotor etc..
But carbon and metal have a larger difference at aspects such as crystal structure, physicochemical characteristicss, carbon/carbon compound material and
The angle of wetting of most metals is more than 90 °, that is, belong to complete nonwetting system, therefore cannot realize direct combination.Due to carbon/carbon
Composite can not be welded, and the fusing point of carbon or carbide is very high, therefore can not directly be welded with the method for melting.Mesh
Before, carbon/carbon compound material and metal material can only directly be connected using the special method such as soldering or diffusion welding (DW), but
The linear expansion coefficient of carbon/carbon compound material be less than most metals material, joint easily thermal stress effect under crack or
Fracture, and substantial amounts of gas can be discharged in carbon/carbon compound material heating process, have a strong impact on welding procedure and joint
Quality, causes to produce a large amount of pores and crackle in joint.
Chinese patent CN101550020B " method of attachment of carbon/carbon compound material and nickel base superalloy " discloses one kind
The method of attachment of carbon/carbon compound material and nickel base superalloy, first to carbon/carbon compound material and the company for the treatment of of nickel base superalloy
Junction is cleaned, then Ni-Si mixed powders are coated on the face to be connected of C/C composites, and formation C/C composites/
The sandwich structure of Ni-Si mixed powders/nickel base superalloy, is then placed in vacuum hotpressing stove, using solid phase diffusion method
Carbon/carbon compound material is attached with nickel base superalloy, due to doing intermediate layer using Ni-Si mixed powders, realize carbon/
The connection of carbon composite and nickel base superalloy, and the shear strength of carbon/carbon compound material and nickel base superalloy joint
7.86～19.92MPa is reached.
" the PTLP bonding of carbon/carbon compound material and nickel base superalloy of Chinese patent 201310064825.5
Method " discloses the part instant liquid phase connecting method of a kind of carbon/carbon compound material and nickel base superalloy.With Ti paper tinsels, Ni paper tinsels,
The paillon foils such as Cu paper tinsels, by the order of Ti paper tinsels/Ni paper tinsels/Cu paper tinsels/Ni paper tinsels, are placed on clean carbon/carbon compound material and nickel as intermediate layer
Sandwich structure is formed between based high-temperature alloy, then the structure is placed in vacuum hotpressing stove, using Partial Liquid Phase Diffusion method pair
Carbon/carbon compound material and nickel base superalloy are attached.Intensification carries out first time PTLP bonding, realizes metal circle
The connection in face；Intensification carries out second Partial Liquid Phase connection, realizes the connection of carbon/carbon compound material and intermediate layer.This method is realized
The connection of carbon/carbon compound material and nickel base superalloy, and bonding strength is higher, shearing strength of joint up to 14.99～
26.1MPa。
Chinese patent CN103408317B " the high temperature brazing method of attachment of a kind of C/C composites and nickel base superalloy "
Disclose the soldering connecting method of a kind of C/C composites and nickel base superalloy.Prepare one on C/C surfaces with investment first
Layer SiC coatings, then clean and are dried the nickel base superalloy of the modified C/C composites in surface and surface polishing.Will
BNi71CrSi nickel-based solders are uniformly laid in the modified C/C composite material surfaces in surface, formed C/C composites/
The sandwich structure of BNi71CrSi/ nickel base superalloys, this structure is placed in vacuum hotpressing stove and is attached.This method is realized
The connection of C/C composites and nickel-base alloy, effectively alleviates nickel alloy and mismatches with the thermal coefficient of expansion of C/C composites
Property and Problem of Wettability, reduce the residual stress between joint, make the room temperature shearing of C/C composites and nickel-base alloy joint strong
Degree is up to 35.08MPa.
At present, due to by Interlayer Alloy and Interlayer Alloy and mother metal (carbon/carbon compound material and nickel base superalloy)
Between thermal coefficient of expansion mismatch, the residual stress of generation causes the bonding strength of carbon/carbon compound material and nickel base superalloy
Improve limited.
The content of the invention
To overcome this difficult problem, the present invention propose the solder of a kind of connection carbon/carbon compound material and nickel base superalloy and
Method of attachment.
The present invention technical thought be：Generated using active element Ti and the reaction of carbon/carbon compound material top layer pyrolytic carbon
TiC, using TiC and NiAl good wettability, produces chemisorbed, and acquisition surface is permeated with the carbon/carbon of part NiAl and is combined
Material, forms the stratiform transition of the carbon/carbon compound material/carbon/carbon compound material+TiC+NiAl/NiAl of very strong interface cohesion
Conversion zone.Recycle nikel powder to do intermediate layer, realize that carbon/carbon compound material is attached with nickel base superalloy by hot pressing, and
Shearing strength of joint is higher.
The solder of carbon/carbon compound material proposed by the present invention and nickel base superalloy, including following components, by quality percentage
Than composition：
Ti powder 8～10%, NiAl powder 80～85%, Ni powder 5～12%；
The granularity of the Ti powder is 20～40 μm, and the granularity of NiAl powder is 30～60 μm, and the granularity of Ni powder is 15-25 μm.
Carbon/carbon compound material of the present invention and the method for attachment of nickel base superalloy, comprise the following steps：
Step one, by carbon/carbon compound material respectively in ultrasound wave and washes of absolute alcohol post-drying；
Step 2, Ti powder is with PVB powder end, dehydrated alcohol by 4g PVB (polyvinyl alcohol contracting fourths in every 100ml dehydrated alcohol
Aldehyde) powder, the standard of 50～60g Ti powder, make Ti powders slurry brush in surface of carbon/carbon composite；
Step 3, the carbon/carbon compound material of surface-coated Ti is embedded in NiAl powder body, is then placed on Vacuum Heat
In pressure stove, and the vacuum in vacuum hotpressing stove burner hearth is set to be less than or equal to 10-2Pa；Vacuum hotpressing stove fire box temperature is raised to by room temperature
1700～1800 DEG C, and 40～50min is incubated, intensification starts simultaneously at pressurization, and Stress control is in 15～20MPa；Stop afterwards adding
Pressure, cools to room temperature with the furnace, and heating rate and the rate of temperature fall of hot pressing furnace are 10～15 DEG C/min, obtain surface and are permeated with
The carbon/carbon compound material of NiAl；
Step 4, by surface prepared by step (3) carbon/carbon compound material of NiAl, and nickel base superalloy are permeated with
Facing cut to be connected it is flat after sandblasting to surface roughness Ra be 1.6～0.4 μm；
Step 5, by Ni powder and PVB powder end, dehydrated alcohol by 4g PVB powders end in every 100ml dehydrated alcohol, 60～80g
The standard of Ni powder, makes Ni powders slurry and brushes on the face to be connected of carbon/carbon compound material and nickel base superalloy；
Step 6, the carbon/carbon compound material and nickel base superalloy that step 5 is obtained face laminating to be connected and edge laminating
The vertical direction in face applies the pressure of 20～40MPa, is put in hot pressing furnace and is processed；Hot pressing furnace is evacuated to vacuum and is less than
Equal to 5.0 × 10-3Start to warm up during Pa；During intensification along pre-connection component vertical direction to pre-connection component apply 20～
The pressure of 40MPa；Start when the temperature from ambient of hot pressing furnace rises to 1150～1200 DEG C insulation, temperature retention time be 40～
60min；Shed the pressure for being applied to pre-connection component, pre-connection component cools to room temperature with the furnace, obtain carbon/carbon compound material with
The connector of nickel base superalloy；The heating rate of hot pressing furnace is 10～15 DEG C/min with rate of temperature fall.
Principle and advantage：
(1) NiAl is penetrated into inside carbon/carbon compound material in the presence of active element Ti
NiAl is poor with the wettability of carbon, and after adding active element carbon, molten Ti is anti-with the pyrolytic carbon in carbon base body under high temperature
TiC granular layers should be generated.NiAl has covalency and metallicity, is mainly shown as metallicity, and TiC belongs to transition metal carbide,
Have covalent bond, three kinds of chemical bonds of different nature of ionic bond and metallic bond concurrently, its metallicity directly affects metal/ceramic system
Interfacial property.In wet processes, [Ti] in TiC substrates shows stronger affinity to NiAl, promotes both moistenings.
NiAl relies on the wettability good with TiC, opens in TiC surface spreadings, by chemisorbed, solid/liquid interfaces energy is reduced, so as to drop
The interface stress of low liquid NiAl alloy epitaxy, causes molten NiAl molten drop to penetrate into by hole and hole capillary force
Hole inside carbon/carbon compound material, improve penetrating power of the NiAl alloy epitaxy liquid to carbon/carbon base body, by NiAl melts infilter carbon/
In the hole of carbon composite.
(2) residual stress produced when NiAl is penetrated into inside carbon/carbon compound material is little, and it is very strong to define interface cohesion
The stratiform transient response layer of carbon/carbon compound material/carbon/carbon compound material+TiC+NiAl/NiAl
The thermal coefficient of expansion of NiAl is 15.1 × 10 when 20～2100 DEG C-6K-1, the thermal expansion system of TiC when 20～1000 DEG C
Number is 7.74 × 10-6K-1, both thermal coefficient of expansions also differ greatly, easily near interface generation residual stress.But
NiAl/TiC boundary strengths are higher, can bear this residual thermal stress, and due to NiAl high thermal conductivity, can use mispairing position
The lax residual stress of wrong and strain field so that NiAl does not produce residual stress or thermal stress very little from cooling procedure is penetrated into.
(3) Ni powder realizes the carbon/carbon compound material of coating metal and the company of nickel base superalloy by solid-state diffusion
Connect
Because carbon/carbon compound material top layer is metallized by NiAl alloy epitaxy, and nickel base superalloy contains in itself nickel element, because
This now Ni powder as intermediate layer, can preferentially alleviate between mother metal thermal stress caused by thermal expansion coefficient difference, add mother metal connection
Face has all carried out sandblasting pretreatment, and the coarse of surface causes the bonding strength of joint to significantly improve, and shear strength brings up to
More than 45MPa.
Specific embodiment：
Comparative example 1：
China applies for a patent CN101550020B " method of attachment of carbon/carbon compound material and nickel base superalloy ", adopts
Mass ratio 295:16 Ni, Si powder mixed grinding, drying, are obtained Ni-Si mixed powders, be coated on carbon/carbon compound material and
On the face to be connected of nickel base superalloy, in vacuum hotpressing stove pressurization, heating be prepared for shear strength for 7.86～
The carbon/carbon compound material of 19.92MPa and nickel base superalloy joint.This patent author paper " C/C composites with it is Ni-based
The mechanical property of high temperature alloy jointing and microstructure " [Rare Metals Materials and engineering, 2011,40 (1)：111-114.]
In think that, using Ni, Si powder as intermediate layer, Ni and Si reacts can generate Ni at high temperature2Si、Ni5Si2、Ni3Si etc. changes
Compound, these product are not only able to strengthen the wettability of 2 kinds of connecting materials, but also can alleviate due to thermal coefficient of expansion
The thermal stress for mismatching and producing.And the Ni powder for passing through excessive addition, after reacting Ni, Si, also has excessive
Ni is present, so as to reach the ability for strengthening intermediate layer relief of thermal stress.But the Si compounds of Ni are after all the gold of some fragility
Compound between category, its relief of thermal stress it is limited in one's ability.
Comparative example 2：
A kind of Chinese patent CN103408317B " the high temperature brazing connection sides of C/C composites and nickel base superalloy
Method ", SiC coatings are prepared first with investment in C/C composite material surfaces；BNi71CrSi solders and ethanol are mixed
To BNi71CrSi slips be coated on the modified C/C composites in surface, the face to be connected of nickel base superalloy is placed on into pricker
On material, then wrap this structure with graphite paper and be placed in vacuum hotpressing stove, C/C composite woods prepared by pressurized, heated
Material is up to 35.08MPa with the room temperature shear strength of nickel-base alloy joint.
SiC belongs to covalent crystal, and Si and C have suitable electronegativity, so SiC shows extremely strong covalant character.And
Metal generally has covalency and metallicity, is mainly shown as metallicity, and according to similar compatibility principle, SiC shows as to metal
Inert behavior, wettability is poor.
Comparative example 3：
First carbon/carbon compound material is embedded in the mixed powder of NiAl+Ti, the modified carbon/carbon of surface NiAl is prepared and is combined
Material, then Ni renderings are coated on the carbon/carbon compound material and nickel base superalloy of the surface metalation Jing after blasting treatment, lead to
Cross vacuum hotpressing and be prepared for carbon/carbon compound material and nickel base superalloy joint.
Carbon/carbon compound material in this comparative example is prepared with the connector of nickel base superalloy by following steps：
(1) by carbon/carbon compound material respectively in ultrasound wave and washes of absolute alcohol post-drying；
(2) the NiAl powder that granularity is 40 μm of Ti powder and granularity is 30 μm dry-mixed 4h on batch mixer, is obtained NiAl+Ti
Mixed powder；
(3) carbon/carbon compound material is embedded in the mixed powder of NiAl+Ti, is then placed in vacuum hotpressing stove, and
The vacuum in vacuum hotpressing stove burner hearth is set to be less than 10-2Pa；Vacuum hotpressing stove fire box temperature is raised to 1800 DEG C by room temperature, and is incubated
50min, intensification starts simultaneously at pressurization, and Stress control is in 15MPa；Stop pressurization afterwards, cool to room temperature, the liter of hot pressing furnace with the furnace
Warm speed is 10 DEG C/min with rate of temperature fall, obtains the carbon/carbon compound material that surface is permeated with NiAl；
(4) surface prepared by step (3) is permeated with into the carbon/carbon compound material of NiAl, and nickel base superalloy is treated
Sandblasting to surface roughness Ra is 1.6～0.4 μm after connection facing cut is flat；
(5) by the Ni powder of 20 μm of granularity and PVB powder end, dehydrated alcohol by 4g PVB powders end in per 100ml dehydrated alcohol, 60
The standard of～80g Ni powder, makes Ni powders slurry and brushes on the face to be connected of carbon/carbon compound material and nickel base superalloy；
(6) the pre-connection component of step (5) is put in hot pressing furnace and is processed；Hot pressing furnace is evacuated to vacuum and is less than
5.0×10-3Start to warm up during Pa；Vertical direction during intensification along pre-connection component applies the pressure of 20MPa to pre-connection component
Power；Start insulation when the temperature from ambient of hot pressing furnace rises to 1150 DEG C, temperature retention time is 40min；Shed and be applied to pre-connection
The pressure of component, pre-connection component cools to room temperature with the furnace, obtains the connector of carbon/carbon compound material and nickel base superalloy；
The heating rate of hot pressing furnace is 10 DEG C/min with rate of temperature fall.
Performance test is carried out to the connector, room temperature shear strength is 35～38MPa.
Embodiment 1：
First surface of carbon/carbon composite is brushed into Ti, then be embedded in NiAl powder, prepare what surface NiAl was modified
Carbon/carbon compound material, then brushes respectively the carbon/carbon compound material and nickel in the surface metalation Jing after blasting treatment by Ni powder
On based high-temperature alloy, carbon/carbon compound material and nickel base superalloy joint are prepared for by vacuum hotpressing.
Carbon/carbon compound material in the present embodiment is prepared with the connector of nickel base superalloy by following steps：
(1) by carbon/carbon compound material respectively in ultrasound wave and washes of absolute alcohol post-drying；
(2) 40 μm of Ti powder is with PVB powder end, dehydrated alcohol by 4g PVB powders end in every 100ml dehydrated alcohol, 50～60g
The standard of Ti powder, makes Ti powders slurry and brushes in surface of carbon/carbon composite；
(3) carbon/carbon compound material of surface-coated Ti is embedded in 30 μm of NiAl powder body, is then placed on vacuum
In hot pressing furnace, and the vacuum in vacuum hotpressing stove burner hearth is set to be less than 10-2Pa；Vacuum hotpressing stove fire box temperature is raised to by room temperature
1800 DEG C, and 50min is incubated, intensification starts simultaneously at pressurization, and Stress control is in 15MPa；Stop pressurization afterwards, cool to room with the furnace
Temperature, heating rate and the rate of temperature fall of hot pressing furnace are 10 DEG C/min, obtain the carbon/carbon compound material that surface is permeated with NiAl；
(4) surface prepared by step (3) is permeated with into the carbon/carbon compound material of NiAl, and nickel base superalloy is treated
Sandblasting to surface roughness Ra is 1.6～0.4 μm after connection facing cut is flat；
(5) by the Ni powder of 20 μm of granularity and PVB powder end, dehydrated alcohol by 4g PVB powders end in per 100ml dehydrated alcohol, 60
The standard of～80g Ni powder, makes Ni powders slurry and brushes on the face to be connected of carbon/carbon compound material and nickel base superalloy；
(6) the pre-connection component of step (5) is put in hot pressing furnace and is processed；Hot pressing furnace is evacuated to vacuum and is less than
5.0×10-3Start to warm up during Pa；Vertical direction during intensification along pre-connection component applies the pressure of 20MPa to pre-connection component；
Start insulation when the temperature from ambient of hot pressing furnace rises to 1150 DEG C, temperature retention time is 40min；Shed and be applied to pre-connection component
Pressure, pre-connection component cools to room temperature with the furnace, obtains the connector of carbon/carbon compound material and nickel base superalloy；Hot pressing
The heating rate of stove is 10 DEG C/min with rate of temperature fall.
Performance test is carried out to the connector, room temperature shear strength is 55.68MPa.
Embodiment 2：
First surface of carbon/carbon composite is brushed into Ti, then be embedded in NiAl powder, prepare what surface NiAl was modified
Carbon/carbon compound material, then brushes respectively the carbon/carbon compound material and nickel in the surface metalation Jing after blasting treatment by Ni powder
On based high-temperature alloy, carbon/carbon compound material and nickel base superalloy joint are prepared for by vacuum hotpressing.
Carbon/carbon compound material in the present embodiment is prepared with the connector of nickel base superalloy by following steps：
(1) by carbon/carbon compound material respectively in ultrasound wave and washes of absolute alcohol post-drying；
(2) 20 μm of Ti powder is with PVB powder end, dehydrated alcohol by 4g PVB powders end in every 100ml dehydrated alcohol, 50～60g
The standard of Ti powder, makes Ti powders slurry and brushes in surface of carbon/carbon composite；
(3) carbon/carbon compound material of surface-coated Ti is embedded in 40 μm of NiAl powder body, is then placed on vacuum
In hot pressing furnace, and the vacuum in vacuum hotpressing stove burner hearth is set to be less than 10-2Pa；Vacuum hotpressing stove fire box temperature is raised to by room temperature
1780 DEG C, and 40min is incubated, intensification starts simultaneously at pressurization, and Stress control is in 15MPa；Stop pressurization afterwards, cool to room with the furnace
Temperature, heating rate and the rate of temperature fall of hot pressing furnace are 15 DEG C/min, obtain the carbon/carbon compound material that surface is permeated with NiAl；
(4) surface prepared by step (3) is permeated with into the carbon/carbon compound material of NiAl, and nickel base superalloy is treated
Sandblasting to surface roughness Ra is 1.6～0.4 μm after connection facing cut is flat；
(5) by the Ni powder of 20 μm of granularity and PVB powder end, dehydrated alcohol by 4g PVB powders end in per 100ml dehydrated alcohol, 60
The standard of～80g Ni powder, makes Ni powders slurry and brushes on the face to be connected of carbon/carbon compound material and nickel base superalloy；
(6) the pre-connection component of step (5) is put in hot pressing furnace and is processed；Hot pressing furnace is evacuated to vacuum and is less than
5.0×10-3Start to warm up during Pa；Vertical direction during intensification along pre-connection component applies the pressure of 30MPa to pre-connection component；
Start insulation when the temperature from ambient of hot pressing furnace rises to 1180 DEG C, temperature retention time is 50min；Shed and be applied to pre-connection component
Pressure, pre-connection component cools to room temperature with the furnace, obtains the connector of carbon/carbon compound material and nickel base superalloy；Hot pressing
The heating rate of stove is 10 DEG C/min with rate of temperature fall.
Performance test is carried out to the connector, room temperature shear strength is 45.03MPa.
Embodiment 3：
First surface of carbon/carbon composite is brushed into Ti, then be embedded in NiAl powder, prepare what surface NiAl was modified
Carbon/carbon compound material, then brushes respectively the carbon/carbon compound material and nickel in the surface metalation Jing after blasting treatment by Ni powder
On based high-temperature alloy, carbon/carbon compound material and nickel base superalloy joint are prepared for by vacuum hotpressing.
Carbon/carbon compound material in the present embodiment is prepared with the connector of nickel base superalloy by following steps：
(1) by carbon/carbon compound material respectively in ultrasound wave and washes of absolute alcohol post-drying；
(2) 40 μm of Ti powder is with PVB powder end, dehydrated alcohol by 4g PVB powders end in every 100ml dehydrated alcohol, 50～60g
The standard of Ti powder, makes Ti powders slurry and brushes in surface of carbon/carbon composite；
(3) carbon/carbon compound material of surface-coated Ti is embedded in 60 μm of NiAl powder body, is then placed on vacuum
In hot pressing furnace, and the vacuum in vacuum hotpressing stove burner hearth is set to be less than 10-2Pa；Vacuum hotpressing stove fire box temperature is raised to by room temperature
1750 DEG C, and 45min is incubated, intensification starts simultaneously at pressurization, and Stress control is in 15MPa；Stop pressurization afterwards, cool to room with the furnace
Temperature, heating rate and the rate of temperature fall of hot pressing furnace are 15 DEG C/min, obtain the carbon/carbon compound material that surface is permeated with NiAl；
(4) surface prepared by step (3) is permeated with into the carbon/carbon compound material of NiAl, and nickel base superalloy is treated
Sandblasting to surface roughness Ra is 1.6～0.4 μm after connection facing cut is flat；
(5) by the Ni powder of 20 μm of granularity and PVB powder end, dehydrated alcohol by 4g PVB powders end in per 100ml dehydrated alcohol, 60
The standard of～80g Ni powder, makes Ni powders slurry and brushes on the face to be connected of carbon/carbon compound material and nickel base superalloy；
(6) the pre-connection component of step (5) is put in hot pressing furnace and is processed；Hot pressing furnace is evacuated to vacuum and is less than
5.0×10-3Start to warm up during Pa；Vertical direction during intensification along pre-connection component applies the pressure of 40MPa to pre-connection component；
Start insulation when the temperature from ambient of hot pressing furnace rises to 1180 DEG C, temperature retention time is 45min；Shed and be applied to pre-connection component
Pressure, pre-connection component cools to room temperature with the furnace, obtains the connector of carbon/carbon compound material and nickel base superalloy；Hot pressing
The heating rate of stove is 10 DEG C/min with rate of temperature fall.
Performance test is carried out to the connector, room temperature shear strength is 48.92MPa.
Comparing embodiment 1～3 and comparative example 1,2 as can be seen that using the standby carbon/carbon compound material of patent system of the present invention and
The shear strength of the connector of nickel base superalloy is significantly improved.
Comparing embodiment 1 and comparative example 3 can be seen that in the case of other technique identicals, using carbon/carbon compound material
Surface is brushed after Ti, then is embedded in the carbon/carbon compound material of the surface metalation prepared in NiAl powder as parent preparation
The shear strength of connector more directly embed NiAl+Ti mixed powders, its room temperature shear strength by 35～38MPa improve to
55.68MPa。
Claims (7)
1. the solder of carbon/carbon compound material and nickel base superalloy, including following components, constitutes by mass percentage：
Ti powder 8～10%, NiAl powder 80～85%, Ni powder 5～12%.
2. the solder of carbon/carbon compound material according to claim 1 and nickel base superalloy, it is characterised in that：The Ti
The granularity of powder is 20～40 μm, and the granularity of NiAl powder is 30～60 μm, and the granularity of Ni powder is 15-25 μm.
3. carbon/carbon compound material and the method for attachment of nickel base superalloy, comprise the following steps：
Step one, by carbon/carbon compound material respectively in ultrasound wave and washes of absolute alcohol post-drying；
Step 2, configuration Ti powders are starched and brushed in surface of carbon/carbon composite；
Step 3, the carbon/carbon compound material that surface-coated Ti powder is starched is embedded in NiAl powder body, vacuum pressure sintering, is obtained
Obtain the carbon/carbon compound material that surface is permeated with NiAl；
Step 4, is permeated with the carbon/carbon compound material of NiAl and treating for nickel base superalloy by surface prepared by step (3) respectively
Sandblasting to surface roughness Ra is 1.6～0.4 μm after connection facing cut is flat；
Step 5, configuration Ni powders slurry is simultaneously brushed respectively on the face to be connected of carbon/carbon compound material and nickel base superalloy；
Fit and along binding face in step 6, the carbon/carbon compound material and nickel base superalloy that step 5 is obtained face to be connected
Vertical direction applies the pressure of 20～40MPa, and release furnace cooling after vacuum-sintering obtains carbon/carbon compound material with Ni-based height
The connector of temperature alloy.
4. the method for attachment of carbon/carbon compound material according to claim 3 and nickel base superalloy, it is characterised in that：Step
In rapid two, Ti powders slurry is prepared by following components proportioning：By add in every 100ml dehydrated alcohol 4g PVB powders end and 50～
60g Ti powder, stirs, and makes Ti powders slurry.
5. the method for attachment of carbon/carbon compound material according to claim 3 and nickel base superalloy, it is characterised in that：Step
In rapid three, vacuum pressure sintering process parameter is：Vacuum in vacuum hotpressing stove burner hearth is less than or equal to 10-2Pa；Sintering temperature
1700～1800 DEG C, 40～50min of temperature retention time, furnace pressure is controlled in 15～20MPa；Heating rate is with rate of temperature fall
10～15 DEG C/min, release after the completion of sintering cools to room temperature with the furnace.
6. the method for attachment of carbon/carbon compound material according to claim 3 and nickel base superalloy, it is characterised in that：Step
In rapid five, Ni powders slurry is prepared by following components proportioning：By add in every 100ml dehydrated alcohol 4g PVB powders end and 60～
80g Ni powder, stirs, and makes Ni powders slurry.
7. the method for attachment of the carbon/carbon compound material according to claim 3-6 any one and nickel base superalloy, it is special
Levy and be：In step 6, vacuum sintering technology parameter is：Vacuum is less than or equal to 5.0 × 10 in hot pressing furnace-3Pa；Sintering temperature
1150～1200 DEG C, temperature retention time is 40～60min；Sintering is completed, and release furnace cooling, heating rate is with rate of temperature fall
10～15 DEG C/min.
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| CN108276018A (en) * | 2018-01-19 | 2018-07-13 | 西北工业大学 | A method of C/C composite materials are connected without pressure with the soldering of nickel based metal paillon |
| CN114133264A (en) * | 2021-12-24 | 2022-03-04 | 哈尔滨工业大学 | Method for connecting silicon carbide ceramic composite material and nickel-based high-temperature alloy and joint |
| CN115121893A (en) * | 2022-08-03 | 2022-09-30 | 哈尔滨工业大学 | Method for brazing carbon-based material and nickel-based superalloy by adopting high-temperature CuPdW low-thermal expansion coefficient composite brazing filler metal |
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| CN108276018A (en) * | 2018-01-19 | 2018-07-13 | 西北工业大学 | A method of C/C composite materials are connected without pressure with the soldering of nickel based metal paillon |
| CN114133264A (en) * | 2021-12-24 | 2022-03-04 | 哈尔滨工业大学 | Method for connecting silicon carbide ceramic composite material and nickel-based high-temperature alloy and joint |
| CN114133264B (en) * | 2021-12-24 | 2022-12-09 | 哈尔滨工业大学 | Method for connecting silicon carbide ceramic composite material and nickel-based high-temperature alloy and joint |
| CN115121893A (en) * | 2022-08-03 | 2022-09-30 | 哈尔滨工业大学 | Method for brazing carbon-based material and nickel-based superalloy by adopting high-temperature CuPdW low-thermal expansion coefficient composite brazing filler metal |
| CN115121893B (en) * | 2022-08-03 | 2024-03-19 | 哈尔滨工业大学 | Method for brazing carbon-based material and nickel-based superalloy by adopting high-temperature CuPdW low-thermal expansion coefficient composite solder |
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