CN107081517B - A kind of law temperature joining method of TZM and WRe different alloys - Google Patents
A kind of law temperature joining method of TZM and WRe different alloys Download PDFInfo
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- CN107081517B CN107081517B CN201710505127.2A CN201710505127A CN107081517B CN 107081517 B CN107081517 B CN 107081517B CN 201710505127 A CN201710505127 A CN 201710505127A CN 107081517 B CN107081517 B CN 107081517B
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
- B23K20/026—Thermo-compression bonding with diffusion of soldering material
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
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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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Abstract
The present invention provides a kind of law temperature joining methods of TZM and WRe different alloys, it is using Ti powder as active intermediate, by discharge plasma sintering technique welding is diffused to TZM alloy and WRe alloy under the recrystallization temperature lower than base material, obtains the connector of TZM alloy and WRe alloy.While welding method through the invention can guarantee that base material does not recrystallize, the TZM/WRe different alloys connector of intensity height, forming is obtained, connector room temperature shear strength is up to 263MPa.
Description
Technical field
The present invention relates to a kind of law temperature joining method of xenogenesis refractory alloy more particularly to a kind of TZM/WRe different alloys
Connection method.
Background technique
TZM alloy is a kind of high temperature alloy that Ti and Zr of the total amount no more than 1% are added in Mo matrix and is formed.With it is pure
Molybdenum is compared, and TZM alloy has higher recrystallization temperature and elevated temperature strength.TZM Alloyapplication is extensive, such as: good using its
Corrosion stability, glass-melting furnace and the main shaft with platinum rhodium cladding blender on color picture tube glass bulb production line；Utilize its Gao Rong
The characteristic of point, for manufacturing the die casting of non-ferrous metal；Using good mechanical property under its high temperature and pressure, sent out for torpedo
The military affairs component such as distribution valve body, rocket nozzle in motivation.
WRe alloy is the alloy as composed by W and Re.500 DEG C of W high of the recrystallization temperature ratio of Re, and Re is crisp there is no moulding
Transition temperature.Therefore, the addition of Re can significantly improve the brittleness at room temperature of W, reduce and mould crisp transition temperature, and can be in certain high temperature
The mechanical property of region enhancing W.With national defense industry and the rapid development of national economy, WRe alloyed components are in each field
Using increasingly extensive, such as solid rocket motor nozzle, nuclear fuel storage and control device, extreme environment thermocouple and aviation
Electromagnetic motor electric contact material etc..
The composite construction that TZM alloy and WRe alloy are joined together to form, for expanding TZM alloy in the high temperature environment
Using having very important significance.However, due to the physics of TZM alloy and WRe alloy, big (such as fusing point of chemical property difference
Difference is big) so that connection between the two is extremely difficult.Melting welding, soldering, diffusion welding and moment liquid are mainly used at present
It is connected to realize the connection of refractory alloy.But there are many deficiencies for these methods: melting welding is easy to produce crackle, and in molten bath
The new alloy of formation often has stronger brittleness, causes weld seam tensile strength not high, it is difficult to high-intensitive connector be made；Gu
Mutually diffusion connection and partial transient liquid required temperature is high, soaking time is long, leads to that connection between the two is time-consuming, energy consumption, and holds
Easily there is serious recrystallization problem, causes material mechanical performance to decline to a great extent, workpiece deformation；Although soldering connection temperature compared with
Low, but since the fusing point of solder is generally lower, soldering is not only difficult to give full play of refractory metal mechanical behavior under high temperature excellent
Different strong point, and weld seam easily cracks in high/low temperature cyclic process, causes air-tightness to be unable to satisfy application request, sternly
It limits its scope of application again.
Discharge plasma sintering technique (Spark Plasma Sintering, SPS) is nearly 20 years one kind to grow up
Novel powder Fast Sintering technology is applied to the field of powder metallurgy of refractory metal more.With the gradually development of SPS technology,
It is found that it not only has the advantages of conventional method can not go beyond in field of powder metallurgy, and it also has solely in welding field
Special advantage, can be realized and be directly connected between of the same race, dissimilar metal or even metal and ceramics.Therefore, it is touched by experiment
Rope is expected to realize the reliable air-tight connection between TZM alloy and WRe alloy using SPS technology.
Summary of the invention
For the shortcoming of existing refractory metal, especially TZM alloy and WRe alloy interconnection technique, mesh of the invention
Be discharge plasma sintering technique is used for the diffusion welding of refractory alloy, provide a kind of addition Ti powder as activity
The connection method of the TZM and WRe different alloys of middle layer reduces welding temperature, promotes while to avoid master alloy recrystallization
Atom diffusion, and then improve the mechanical property of welding point.
The present invention solves technical problem, adopts the following technical scheme that
The law temperature joining method of TZM and WRe different alloys of the present invention is to pass through electric discharge using Ti powder as active intermediate
Plasma sintering technique is diffused welding under the recrystallization temperature lower than base material to TZM alloy and WRe alloy, to obtain
The connector of TZM alloy and WRe alloy.Specifically comprise the following steps:
Step 1,
TZM alloy and WRe alloy to be connected are taken, TZM alloy and WRe alloy is carried out by pre-grinding to connection surface, are thrown
Light and ultrasonic cleaning are simultaneously dried in vacuo；
Step 2,
Weigh Ti powder of the partial size at 30~60 μm；
Step 3,
Graphite jig is taken, the graphite jig includes seaming chuck, push-down head and graphite former；
The TZM alloy handled well, Ti powder and the WRe alloy handled well are sequentially placed into from bottom to top in graphite former, so
It is compressed afterwards with seaming chuck and push-down head, while Ti powder active intermediate being made to be located at the middle position of graphite former height；
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 20~60MPa,
Heating rate is 20~300 DEG C/min,
Connecting temperature is 800~1100 DEG C,
Soaking time is 10~120min,
Rate of temperature fall are as follows: the rate of temperature fall for being down to 600 DEG C of section from connection temperature is 2~40 DEG C/min, is dropped from 600 DEG C
To the furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy, the thickness of the Ti active intermediate of the connector are obtained after cooling
At 40~120 μm.
In specific implementation, when the connection temperature is 800~1100 DEG C, the corresponding pulse direct current current density applied is
400~600A/cm2。
Most preferably, welding condition described in step 4 are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: the section rate of temperature fall that 600 DEG C are down to from 900 DEG C is 20 DEG C/min, is down to room-temperature zone from 600 DEG C
Between furnace cooling.
Above-mentioned optimal conditions is groped and is obtained based on univariate Scientific experimental design and many experiments, herein
Under the conditions of, the comprehensive performance of product is optimal.
Preferably, the Ti active intermediate thickness of the connector is at 60~80 μm.The thickness of middle layer is excessively thin, will affect
Smooth welded seam degree keeps the connection of TZM and WRe alloy limited, mechanical property that is blocked up and can reducing connector.
Compared with prior art, the beneficial effects of the present invention are embodied in:
1, the present invention can realize the rapidly and efficiently connection of TZM alloy Yu WRe alloy using discharge plasma sintering technique, with
Traditional Joining Technology is compared, and this method connection temperature is low, soaking time is short, low energy consumption, it is low to require equipment vacuum degree；Pass through
Ti powder is added as activation middle layer, the connection temperature of TZM/WRe different alloys is reduced, master alloy is avoided to recrystallize,
Significantly improve the high-temperature behavior and service life of welding point.
2, while welding method through the invention can guarantee that base material does not recrystallize, intensity height, forming are obtained
TZM/WRe different alloys connector, connector room temperature shear strength is up to 263MPa.
3, present invention optimizes the SPS Joining Technologies of TZM alloy and WRe alloy, when axial compressive force, the rate of heat addition, connection
Temperature, soaking time and rate of temperature fall are respectively preferably 50MPa, 100 DEG C/min, 900 DEG C, 30min and 20 DEG C/min (cooling speed
Rate is 20 DEG C/min in 600~900 DEG C of sections) when, the advantage of the Joining Technology can be more given full play to, it is sufficiently thick guaranteeing to have
Effectively the crystal grain of master alloy recrystallization process is inhibited to grow up while diffusion layer.
Specific embodiment
Following the invention is further illustrated by the examples, but embodiments of the present invention are not limited only to this.
TZM alloy and WRe alloy as used in the following examples are forging state: the ingredient of TZM alloy be 0.4~
The C of the Ti of 0.6wt.%, the Zr of 0.07~0.12wt.% and 0.01~0.04wt.%, remaining is Mo (disregarding impurity content),
Average grain size is 100 μm；The ingredient of WRe alloy is the Re of 24~26wt.%, remaining is W (disregarding impurity content), average
Crystallite dimension is 10 μm.
Discharge plasma sintering furnace used in following embodiments is the LABOX- of Sinter Land inc company, Japan production
350 discharge plasma sintering systems, current type are DC pulse current, pulse train 40:7；Graphite jig used
Internal diameter is Φ 8mm.
Embodiment 1
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee titanium in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
263MPa。
Embodiment 2
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 800 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
142MPa。
Embodiment 3
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 1000 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
121MPa。
Embodiment 4
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 20MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
136MPa。
Embodiment 5
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 10min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
170MPa。
Embodiment 6
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 60min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
191MPa。
Embodiment 7
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 60MPa,
Heating rate is 20 DEG C/min,
Connecting temperature is 800 DEG C,
Soaking time is 120min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 40 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
197MPa。
Embodiment 8
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 40MPa,
Heating rate is 50 DEG C/min,
Connecting temperature is 1000 DEG C,
Soaking time is 60min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 30 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
147MPa。
Embodiment 9
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 30MPa,
Heating rate is 80 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 60min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 20 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
215MPa。
Embodiment 10
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 20MPa,
Heating rate is 200 DEG C/min,
Connecting temperature is 1000 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: the rate of temperature fall that 600 DEG C of section is down to from connection temperature is 10 DEG C/min, is down to from 600 DEG C
The furnace cooling of room temperature section；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
126MPa。
Embodiment 11
The low temperature diffusion welding of the TZM/WRe different alloys of the present embodiment carries out as follows:
Step 1,
#400, #800, #1000, #1500, #2000 metallographic sand are successively used to the surface to be welded of TZM alloy and WRe alloy
Paper carries out pre-grinding, then polishes and is cleaned by ultrasonic in alcohol.
Step 2,
46 μm of 0.0158g partial size of Ti powder is weighed, with electronic balance (precision 0.1mg) to guarantee Ti in later period connector
Active intermediate thickness is at 60~80 μm.
Step 3,
The TZM alloy handled well, Ti powder and WRe alloy are sequentially placed into from top to bottom in graphite former, then with upper and lower
Pressure head compresses, while Ti powder active intermediate being made to be located at the middle position of graphite former height.
Step 4,
Graphite jig equipped with to-be-welded pieces is placed in the burner hearth of discharge plasma sintering system, is evacuated to and is lower than
8Pa then passes to DC pulse current, is diffused welding, welding condition to TZM alloy and WRe alloy are as follows:
Axial compressive force is 20MPa,
Heating rate is 300 DEG C/min,
Connecting temperature is 1100 DEG C,
Soaking time is 10min,
Rate of temperature fall are as follows: the rate of temperature fall that 1000 DEG C of section is down to from connection temperature is 5 DEG C/min, is down to from 1000 DEG C
The rate of temperature fall in 600 DEG C of section is 14 DEG C/min, is down to the furnace cooling of room temperature section from 600 DEG C；
The connector of TZM alloy and WRe alloy is obtained after cooling.After measured, the room temperature shear strength of connector is
97MPa。
The above is only exemplary embodiment of the present invention, are not intended to limit the invention, all in spirit of the invention
With any modifications, equivalent replacements, and improvements made within principle etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of law temperature joining method of TZM and WRe different alloys, it is characterised in that: led to using Ti powder as active intermediate
Overdischarge plasma sintering technique is diffused welding under the recrystallization temperature lower than base material to TZM alloy and WRe alloy, from
And obtain the connector of TZM alloy Yu WRe alloy；Specifically comprise the following steps:
Step 1,
Take TZM alloy and WRe alloy to be connected, to TZM alloy and WRe alloy to connection surface carry out pre-grinding, polishing and
It is cleaned by ultrasonic and is dried in vacuo；
Step 2,
Weigh Ti powder of the partial size at 30~60 μm；
Step 3,
Graphite jig is taken, the graphite jig includes seaming chuck, push-down head and graphite former；
The TZM alloy handled well, Ti powder and the WRe alloy handled well are sequentially placed into from bottom to top in graphite former, then used
Seaming chuck and push-down head compress, while Ti powder active intermediate being made to be located at the middle position of graphite former height；
Step 4,
It will be placed in the burner hearth of discharge plasma sintering system, be evacuated to lower than 8Pa, so equipped with the graphite jig to connector
After be passed through DC pulse current, welding, welding condition are diffused to TZM alloy and WRe alloy are as follows:
Axial compressive force is 50MPa,
Heating rate is 100 DEG C/min,
Connecting temperature is 900 DEG C,
Soaking time is 30min,
Rate of temperature fall are as follows: be down to from 900 DEG C 600 DEG C section rate of temperature fall be 20 DEG C/min, be down to from 600 DEG C room temperature section with
Furnace is cooling；
The connector of TZM alloy and WRe alloy is obtained after cooling, and the thickness of the Ti active intermediate of the connector is 60
~80 μm.
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| CN107486619A (en) * | 2017-08-30 | 2017-12-19 | 合肥工业大学 | TZM and WRe xenogenesis refractory alloys a kind of SPS diffusion welding methods |
| CN109702191B (en) * | 2018-12-21 | 2020-10-27 | 西安瑞福莱钨钼有限公司 | Preparation method of high-precision dynamic balance rotary anode target material |
| CN110280880B (en) * | 2019-07-03 | 2021-03-23 | 内蒙古工业大学 | Resistance spot welding method for 6061-T6 aluminum alloy and TRIP980 high-strength steel dissimilar alloy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721121A (en) * | 2005-06-09 | 2006-01-18 | 山东大学 | Diffusion and connection method for ceramic and steel by adding active intermediate alloy |
| CN101290858A (en) * | 2007-04-20 | 2008-10-22 | 通用电气公司 | Soldering x ray tube target emission layer |
| CN101575216A (en) * | 2009-06-15 | 2009-11-11 | 哈尔滨工业大学 | SPS connecting method of the same material or different materials between SiAlON ceramic and Si3N4 ceramic |
| CN102335792A (en) * | 2010-07-22 | 2012-02-01 | 鸿富锦精密工业（深圳）有限公司 | Connection method for carbon steel and zirconium oxide ceramic and connecting piece manufactured thereby |
| CN105346161A (en) * | 2015-10-30 | 2016-02-24 | 中南大学 | Tungsten/transition layer/steel composite material and low-temperature and low-pressure active diffusion connection preparation method thereof |
| CN106181000A (en) * | 2016-07-27 | 2016-12-07 | 武汉理工大学 | A kind of tungsten alloy and the method for attachment of molybdenum alloy |
| CN106825885A (en) * | 2017-02-24 | 2017-06-13 | 合肥工业大学 | A kind of connection method of TZM alloys and WRe alloys under electric field-assisted |
-
2017
- 2017-06-28 CN CN201710505127.2A patent/CN107081517B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721121A (en) * | 2005-06-09 | 2006-01-18 | 山东大学 | Diffusion and connection method for ceramic and steel by adding active intermediate alloy |
| CN101290858A (en) * | 2007-04-20 | 2008-10-22 | 通用电气公司 | Soldering x ray tube target emission layer |
| CN101575216A (en) * | 2009-06-15 | 2009-11-11 | 哈尔滨工业大学 | SPS connecting method of the same material or different materials between SiAlON ceramic and Si3N4 ceramic |
| CN102335792A (en) * | 2010-07-22 | 2012-02-01 | 鸿富锦精密工业（深圳）有限公司 | Connection method for carbon steel and zirconium oxide ceramic and connecting piece manufactured thereby |
| CN105346161A (en) * | 2015-10-30 | 2016-02-24 | 中南大学 | Tungsten/transition layer/steel composite material and low-temperature and low-pressure active diffusion connection preparation method thereof |
| CN106181000A (en) * | 2016-07-27 | 2016-12-07 | 武汉理工大学 | A kind of tungsten alloy and the method for attachment of molybdenum alloy |
| CN106825885A (en) * | 2017-02-24 | 2017-06-13 | 合肥工业大学 | A kind of connection method of TZM alloys and WRe alloys under electric field-assisted |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091211A (en) * | 2020-08-20 | 2020-12-18 | 上海交通大学 | Preparation method of diffusion multi-element joint |
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