CN108856941A - A kind of composite soldering and its method for being brazed TC4 titanium alloy - Google Patents
A kind of composite soldering and its method for being brazed TC4 titanium alloy Download PDFInfo
- Publication number
- CN108856941A CN108856941A CN201810931960.8A CN201810931960A CN108856941A CN 108856941 A CN108856941 A CN 108856941A CN 201810931960 A CN201810931960 A CN 201810931960A CN 108856941 A CN108856941 A CN 108856941A
- Authority
- CN
- China
- Prior art keywords
- soldering
- composite
- temperature
- titanium
- expression formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
- B23K35/325—Ti as the principal constituent
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of composite soldering and its methods for being brazed TC4 titanium alloy.A kind of solder includes：Ti30‑40Zr24‑33Mo5‑ 10Cu7‑18Be13‑23；Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti13‑26Zr26‑36Mo1.5‑2.5Cu10‑12Be24‑44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：Ti34‑67Zr12‑40Mo7.5‑18.5Cu2‑26Be2‑20, the volume fraction of reinforced phase is 50%.A kind of method for welding：With Ti30‑40Zr24‑ 33Mo5‑10Cu7‑18Be13‑23As solder brazing TC4 titanium alloy.The beneficial effects of the invention are as follows：With good brazing property.
Description
Technical field
The present invention relates to soldering fields, and in particular to a kind of composite soldering and its method for being brazed TC4 titanium alloy.
Background technique
TC4 is current the most widely used titanium alloy, it has (alpha+beta) two phase structure and excellent mechanical property,
The Performance Match such as intensity, plasticity and damage tolerance are preferably wide in fields such as aerospace, biological medicine, new energy, information industries
General application.Titanium alloy fusing point is high, and poor thermal conductivity, in welding titanium alloy, the biggish cooling velocity of postwelding is easy to cause titanium alloy
Transformation forms α ' martensitic phase, and strength of joint hardness is caused to increase, and plasticity reduces；Weld dimensions high-temperature residence time
Longer, Grain growth trend is obvious；And it is strong with carbon, nitrogen, oxygen element affinity, easily there is coarse grain and connector embrittlement phenomena,
Cause the plasticity and toughness decline of connector.Soldering tech may be implemented part or tiny area and quickly heat completion brazing process,
Invalid heat input can be greatly reduced in its heat source at work, therefore can be big under the conditions of meeting the minimum temperature of welding requirements
Width reduces Peak temperature.
Common crystalline state solder is eutectic or nearly eutectic composition, is mostly made of brittleness element, and need to use brazing flux, high temperature
Under be also easy to produce defect；And due to degree of supercooling, microstructure is based on dendrite, and with segregation, this is by butt joint
Intensity, especially plasticity and toughness cause severe exacerbation.
Compared with crystalline state solder, amorphous brazing filler metal chemical component is uniform, in brazing process, melt, sprawl it is almost complete simultaneously
At it is uniform that this allows for brazing seam structure, is conducive to improve joint performance.Therefore, amorphous brazing filler metal has become material soldering field
In a very important research direction.Currently, the amorphous filler metal that the soldering of TC4 alloy generally uses is
Ti37.5Zr37.5Ni10Cu15Though its connector is secured, direct welding and crystalline state solder welding of the performance compared with TC4 titanium alloy are mentioned
Height, but brittleness is still larger.This is because although amorphous alloy has high elastic limit, high intensity and high rigidity etc. excellent
Mechanical property, still, due to not having the presence of crystal grain, crystal boundary, plastic deformation is substantially highdensity local shear band
Imperfect flow, under the conditions of abandoned, material will extend rapidly along some main shear band until fracture generation, causes
Its feature for not going out plastic deformation in macroscopically basic expressions does not have the ability of room temperature macroscopic view plastic deformation, and can be in milli
Catastrophic fracture occurs in the case where no sign.Therefore, the use of amorphous brazing filler metal cannot still make the performance of soldered fitting completely with
Base material matching.
Chinese invention patent ZL201410773318.3《A kind of high-intensity and high-tenacity dendrite enhancing titanium-based metal glass is compound
Material》A kind of high-intensity and high-tenacity dendrite enhancing titanium-based metal glass composite material is disclosed, it is internal that there is reinforced phase, it can
The Quick Extended of single shear band in noncrystal substrate can be hindered, but the incompetent proliferation for promoting multiple shear bands unfortunately, to make to answer
Power redistribution, reaches the final fracture for delaying material, improves the purpose of the plasticity of amorphous alloy.
Therefore, a kind of proliferation that can promote multiple shear bands so that stress be made to redistribute, and then improves TC4 titanium and closes
The brazing material and its method for welding of golden property of welded joint are known as the key solved the problems, such as.
Summary of the invention
The purpose of the present invention is to provide a kind of composite solderings, have good stress distribution.
It is also an object of the present invention to provide a kind of methods of composite soldering soldering TC4 titanium alloy, have good
Brazing property.
To achieve the above object, the present invention adopts the following technical scheme that, a kind of composite soldering, including：
Ti30-40Zr24-33Mo5-10Cu7-18Be13-23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti13- 26Zr26-36Mo1.5-2.5Cu10-12Be24-44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, atomic percent expression
Formula is：Ti34-67Zr12-40Mo7.5-18.5Cu2-26Be2-20, the volume fraction of reinforced phase is 50%.
Preferably, atomic percent expression formula is：
Ti32Zr27Mo8Cu13Be20；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti20Zr29Mo2Cu11Be38；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti44Zr25Mo14Cu15Be2, the volume fraction of reinforced phase is 50%.
A kind of method of composite soldering soldering TC4 titanium alloy, including：
A, by the Ti30-40Zr24-33Mo5-10Cu7-18Be13-23；Composite soldering melts to obtain molten liquid, utilizes gas atomization
Method obtains composite amorphous powder；
B, composite amorphous powder is sprayed by cold spraying to connecting end surface, coating thickness is 5~15 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 900~930 DEG C of temperature, keeps the temperature 15~25min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：
ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is the area m of soldering point2, t is cooling time；
Wherein, the composite soldering endobasal-body described in step a is mutually titanium-based metal glass, atomic percent expression formula
For；In the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti13-26Zr26- 36Mo1.5-2.5Cu10-12Be24-44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti34-67Zr12-40Mo7.5-18.5Cu2-26Be2-20, the volume fraction of reinforced phase is 50%.
Preferably, the atomic percent expression formula in the composite soldering is：Ti32Zr27Mo8Cu13Be20；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti20Zr29Mo2Cu11Be38；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti44Zr25Mo14Cu15Be2, the volume fraction of reinforced phase is 50%.
Preferably, the Ti described in step a30-40Zr24-33Mo5-10Cu7-18Be13-23The fusion temperature of composite soldering is
890~900 DEG C, the time is 2~5min.
Preferably, the gas atomization method described in step a be high-speed flow with the frequency of 80~100KHz and 2~
2.5 Mach of high speed impact fusion liquid obtains 50~100 μm of diameter of composite amorphous powder.
Preferably, the cold spraying condition is under He atmosphere in stepb, and gas temperature is 500~600
DEG C, 0.6~0.9MPa of spray pressure.
Preferably, the wind speed ν described in step e is 4~16m/s, and the temperature τ of cooling air is 12~16 DEG C, cooling
Time is 1.5min~15min.
The beneficial effects of the invention are as follows：There is reinforced phase inside solder, can not only can hinder single in noncrystal substrate cut
Cut the Quick Extended of band, additionally it is possible to promote the proliferation of multiple shear bands, so that stress be made to redistribute, arrival delays material most
It cuts off and splits, improve the purpose of the plasticity of amorphous alloy.
Detailed description of the invention
Fig. 1 is the metallographic microstructure figure for the brazing member that embodiment I is obtained；
Fig. 2 is the scanning electron microscope (SEM) photograph for the brazing member that embodiment I is obtained；
Fig. 3 is the EDS line scanning figure for the brazing member that embodiment I is obtained；
Specific embodiment
Invention is described in further detail with reference to the accompanying drawing, to enable those skilled in the art's refer to the instruction text
It can implement accordingly.
Embodiment 1
Ti32Zr27Mo8Cu13Be20；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti20Zr29Mo2Cu11Be38；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti44Zr25Mo14Cu15Be2, the volume fraction of reinforced phase is 50%.
Embodiment 2
Ti30Zr33Mo7Cu7Be23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti13Zr36Mo2.5Cu12Be36.5；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti47Zr30Mo11.5Cu2Be9.5, the volume fraction of reinforced phase is 50%.
Embodiment 3
Ti40Zr24Mo10Cu10Be16；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti26Zr36Mo2Cu12Be24；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti54Zr12Mo18Cu8Be8, the volume fraction of reinforced phase is 50%.
Embodiment 4
Ti32Zr32Mo5Cu18Be13；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti25.5Zr36Mo2.5Cu12Be24；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti38.5Zr28Mo7.5Cu24Be2, the volume fraction of reinforced phase is 50%.
Embodiment 5
Ti31Zr24Mo10Cu12Be23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti24.5Zr36Mo1.5Cu12Be26；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti37.5Zr12Mo18.5Cu12Be20, the volume fraction of reinforced phase is 50%.
Embodiment 6
Ti30Zr24Mo5Cu18Be23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti18Zr26.5Mo1.5Cu10Be44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti42Zr21.5Mo8.5Cu26Be2, the volume fraction of reinforced phase is 50%.
Embodiment 7
Ti33Zr33Mo5Cu9Be20；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti21.5Zr26Mo2.5Cu12Be38；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti44.5Zr40Mo7.5Cu6Be2, the volume fraction of reinforced phase is 50%.
Embodiment 8
Ti40Zr25Mo5Cu7Be23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti13Zr30.5Mo2.5Cu10Be44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti67Zr19.5Mo7.5Cu4Be2, the volume fraction of reinforced phase is 50%.
Embodiment 9
Ti30Zr33Mo5Cu9Be23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti26Zr27Mo1.5Cu9.5Be36；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti34Zr40Mo7.5Cu8.5Be10, the volume fraction of reinforced phase is 50%.
Comparative example 1
Ti45Zr25Mo5Cu6Be19；
Wherein, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti30Zr40Mo5Cu5Be20；Enhancing
It is mutually the titanium-based dendrite with body-centered cubic structure, atomic percent expression formula is：Ti60Zr10Mo5Cu7Be18, reinforced phase
Volume fraction is 50%.
Comparative example 2
Ti44Zr26Mo4Cu8Be18；
Wherein, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti24Zr32Mo1.5Cu15Be27.5；
Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：Ti64Zr20Mo6.5Cu1Be8.5, increase
The volume fraction of strong phase is 50%.
Comparative example 3
Ti45Zr23Mo4Cu8Be20；
Wherein, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti24Zr32Mo3.5Cu9Be31.5；Increase
It is by force mutually the titanium-based dendrite with body-centered cubic structure, atomic percent expression formula is：Ti66Zr14Mo4.5Cu7Be8.5, enhancing
The volume fraction of phase is 50%.
Embodiment I
A, it chooses embodiment 1 and is used as composite soldering.By the composite soldering at 895 DEG C, 3min is melted, is obtained after fusing
Molten liquid, then, with the frequency of 500KHz and 2.3 Mach of high speed impact fusion liquid, obtaining 80 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 550 DEG C, spray pressure 0.7MPa be sprayed into
Connecting end surface, coating thickness are 10 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 920 DEG C of temperature, keeps the temperature 20min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 8m/s, and the temperature τ of cooling air is 14 DEG C, cooling time 5min.
Embodiment II
A, it chooses and regard embodiment 2 as composite soldering.By the composite soldering at 890 DEG C, 5min is melted, after fusing
To molten liquid, then, with the frequency of 80KHz and 2.5 Mach of high speed impact fusion liquid, obtaining 50 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 600 DEG C, spray pressure 0.6MPa be sprayed into
Connecting end surface, coating thickness are 15 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 900 DEG C of temperature, keeps the temperature 25min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 4m/s, and the temperature τ of cooling air is 16 DEG C, cooling time 1.5min.
Embodiment III
A, it chooses and regard embodiment 3 as composite soldering, by the composite soldering at 900 DEG C, melt 2min, after fusing
To molten liquid, then, with the frequency of 100KHz and 2 Mach of high speed impact fusion liquid, obtaining 100 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 500 DEG C, spray pressure 0.9MPa be sprayed into
Connecting end surface, coating thickness are 5 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 930 DEG C of temperature, keeps the temperature 15min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 16m/s, and the temperature τ of cooling air is 12 DEG C, cooling time 15min.
Embodiment IV
A, it chooses and regard embodiment 4 as composite soldering, by the composite soldering at 891 DEG C, melt 3min, after fusing
To molten liquid, then, with the frequency of 82KHz and 2.1 Mach of high speed impact fusion liquid, obtaining 60 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 520 DEG C, spray pressure 0.7MPa be sprayed into
Connecting end surface, coating thickness are 6 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 910 DEG C of temperature, keeps the temperature 16min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 5m/s, and the temperature τ of cooling air is 15 DEG C, cooling time 2min.
Embodiment V
A, it chooses and regard embodiment 5 as composite soldering, by the composite soldering at 892 DEG C, 2.5min is melted, after fusing
Molten liquid is obtained, then, with the frequency of 85KHz and 2.2 Mach of high speed impact fusion liquid, is obtaining 70 μ of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature is 510 DEG C, spray pressure 0.65MPa is sprayed into
To connecting end surface, coating thickness is 12 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 9015 DEG C of temperature, keeps the temperature 21min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 6m/s, and the temperature τ of cooling air is 13 DEG C, cooling time 8.5min.
Embodiment VI
A, it chooses and regard embodiment 6 as composite soldering, by the composite soldering at 893 DEG C, 3.5min is melted, after fusing
Molten liquid is obtained, then, with the frequency of 85KHz and 2.5 Mach of high speed impact fusion liquid, is obtaining 80 μ of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature is 560 DEG C, spray pressure 0.65MPa is sprayed into
To connecting end surface, coating thickness is 12 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 920 DEG C of temperature, keeps the temperature 22min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 12m/s, and the temperature τ of cooling air is 13 DEG C, cooling time 9min.
Embodiment VII
A, it chooses and regard embodiment 7 as composite soldering, by the composite soldering at 899 DEG C, 4.5min is melted, after fusing
Molten liquid is obtained, then, with the frequency of 98KHz and 2.4 Mach of high speed impact fusion liquid, is obtaining 90 μ of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature is 590 DEG C, spray pressure 0.68MPa is sprayed into
To connecting end surface, coating thickness is 13 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 925 DEG C of temperature, keeps the temperature 24min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 4m/s, and the temperature τ of cooling air is 13 DEG C, cooling time 13min.
Embodiment VIII
A, it chooses and regard embodiment 8 as composite soldering, by the composite soldering at 896 DEG C, 3.5min is melted, after fusing
Molten liquid is obtained, then, with the frequency of 88KHz and 2.4 Mach of high speed impact fusion liquid, is obtaining 66 μ of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 595 DEG C, spray pressure 0.8MPa be sprayed into
Connecting end surface, coating thickness are 11 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 915 DEG C of temperature, keeps the temperature 19min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 13m/s, and the temperature τ of cooling air is 15 DEG C, cooling time 6min.
Embodiment IX
A, it chooses and regard embodiment 9 as composite soldering, by the composite soldering at 897 DEG C, melt 4min, after fusing
To molten liquid, then, with the frequency of 90KHz and 2.3 Mach of high speed impact fusion liquid, obtaining 70 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature is 550 DEG C, spray pressure 0.65MPa is sprayed into
To connecting end surface, coating thickness is 11 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 911 DEG C of temperature, keeps the temperature 18min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 6m/s, and the temperature τ of cooling air is 13 DEG C, cooling time 8min.
Comparative Examples I
A, it chooses comparative example 1 and is used as composite soldering.By the composite soldering at 895 DEG C, 3min is melted, is obtained after fusing
Molten liquid, then, with the frequency of 500KHz and 2.3 Mach of high speed impact fusion liquid, obtaining 80 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 550 DEG C, spray pressure 0.7MPa be sprayed into
Connecting end surface, coating thickness are 10 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 920 DEG C of temperature, keeps the temperature 20min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 8m/s, and the temperature τ of cooling air is 14 DEG C, cooling time 5min.
Comparative Example II
A, it chooses comparative example 2 and is used as composite soldering.By the composite soldering at 895 DEG C, 3min is melted, is obtained after fusing
Molten liquid, then, with the frequency of 500KHz and 2.3 Mach of high speed impact fusion liquid, obtaining 80 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 550 DEG C, spray pressure 0.7MPa be sprayed into
Connecting end surface, coating thickness are 10 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 920 DEG C of temperature, keeps the temperature 20min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 8m/s, and the temperature τ of cooling air is 14 DEG C, cooling time 5min.
Comparative Example II I
A, it chooses comparative example 3 and is used as composite soldering.By the composite soldering at 895 DEG C, 3min is melted, is obtained after fusing
Molten liquid, then, with the frequency of 500KHz and 2.3 Mach of high speed impact fusion liquid, obtaining 80 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 550 DEG C, spray pressure 0.7MPa be sprayed into
Connecting end surface, coating thickness are 10 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 920 DEG C of temperature, keeps the temperature 20min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature,
The rate of temperature fall function is：ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is pricker
The area m of solder joint2, t is cooling time；Wind speed ν is 8m/s, and the temperature τ of cooling air is 14 DEG C, cooling time 5min.
Comparative Examples I V
A, it chooses embodiment 1 and is used as composite soldering.By the composite soldering at 895 DEG C, 3min is melted, is obtained after fusing
Molten liquid, then, with the frequency of 500KHz and 2.3 Mach of high speed impact fusion liquid, obtaining 80 μ's of diameter with high-speed flow
Composite amorphous powder.
B, by composite amorphous powder under He atmosphere, gas temperature be 550 DEG C, spray pressure 0.7MPa be sprayed into
Connecting end surface, coating thickness are 10 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 920 DEG C of temperature, keeps the temperature 20min；
E, using air-cooled, at the uniform velocity cooling 10 DEG C/s, until room temperature after soldering.
Data analysis
It tests by embodiment I-IX and the resulting weldment of Comparative Examples I-IV, the results are shown in Table 1；
Table 1
As can be seen from Table 1, the TC4 titanium alloy being brazed according to the method for the present invention expands in state of sprawling, angle of wetting, element
Has apparent superiority on exhibition and tensile property.
Fig. 1 is the brazing member metallographic microstructure figure that embodiment I is obtained；Fig. 2 is the scanning for the brazing member that embodiment I is obtained
Electronic Speculum (SEM) figure；Fig. 3 is embodiment IEDS line scanning figure；By Fig. 1-3 it can be seen that solder is sufficiently spread on base material surface
Exhibition, under conditions of guaranteeing joint clearance of brazing, is well combined, solder tissue is similar with alpha titanium alloy tissue between solder and base material；
Interface Microstructure is entirely Wei Shi body tissue, and interface has no precipitate.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (8)
1. a kind of composite soldering, which is characterized in that atomic percent expression formula is：
Ti30-40Zr24-33Mo5-10Cu7-18Be13-23；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti13- 26Zr26-36Mo1.5-2.5Cu10-12Be24-44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, atomic percent expression
Formula is：Ti34-67Zr12-40Mo7.5-18.5Cu2-26Be2-20, the volume fraction of reinforced phase is 50%.
2. composite soldering according to claim 1, which is characterized in that atomic percent expression formula is：
Ti32Zr27Mo8Cu13Be20；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti20Zr29Mo2Cu11Be38；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti44Zr25Mo14Cu15Be2, the volume fraction of reinforced phase is 50%.
3. a kind of method of composite soldering soldering TC4 titanium alloy as claimed in claim 1 or 2, which is characterized in that including：
A, by Ti30-40Zr24-33Mo5-10Cu7-18Be13-23；Composite soldering melts to obtain molten liquid, is answered using gas atomization
Close amorphous powder；
B, composite amorphous powder is sprayed by cold spraying to connecting end surface, coating thickness is 5~15 μm；
C, frock clamp is formed into weldment, is in close contact TC4 titanium alloy end face to be welded；
D, it is brazed at 900~930 DEG C of temperature, keeps the temperature 15~25min；
E, after soldering using air-cooled, cool down according to rate of temperature fall function to it, until brazing member can be obtained in room temperature, it is described
Rate of temperature fall function is：
ν is wind speed m/s, and τ is the temperature DEG C of cooling air, and s is the area m of soldering point2, t is cooling time；
Wherein, the composite soldering endobasal-body described in step a is mutually titanium-based metal glass, and atomic percent expression formula is；?
In the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；Ti13-26Zr26-36Mo1.5- 2.5Cu10-12Be24-44；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：Ti34- 67Zr12-40Mo7.5-18.5Cu2-26Be2-20, the volume fraction of reinforced phase is 50%.
4. the method for composite soldering soldering TC4 titanium alloy according to claim 3, it is characterised in that：
Atomic percent expression formula in the composite soldering is：Ti32Zr27Mo8Cu13Be20；
Wherein, in the composite soldering, matrix is mutually titanium-based metal glass, and atomic percent expression formula is；
Ti20Zr29Mo2Cu11Be38；Reinforced phase is the titanium-based dendrite with body-centered cubic structure, and atomic percent expression formula is：
Ti44Zr25Mo14Cu15Be2, the volume fraction of reinforced phase is 50%.
5. the method for composite soldering soldering TC4 titanium alloy according to claim 3, it is characterised in that：
The Ti described in step a30-40Zr24-33Mo5-10Cu7-18Be13-23The fusion temperature of composite soldering is 890~900 DEG C, the time
For 2~5min.
6. the method for composite soldering soldering TC4 titanium alloy according to claim 3, it is characterised in that：
The gas atomization method described in step a is high-speed flow with the frequency of 80~100KHz and 2~2.5 Mach of high speed
Impact fusion liquid obtains 50~100 μm of diameter of composite amorphous powder.
7. the method for composite soldering soldering TC4 titanium alloy according to claim 3, it is characterised in that：
The cold spraying condition is under He atmosphere in stepb, and gas temperature is 500~600 DEG C, spray pressure
0.6~0.9MPa.
8. the method for composite soldering soldering TC4 titanium alloy according to claim 3, it is characterised in that：
The wind speed ν described in step e is 4~16m/s, and the temperature τ of cooling air is 12~16 DEG C, cooling time be 1.5min~
15min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810931960.8A CN108856941B (en) | 2018-08-16 | 2018-08-16 | Composite solder and method for brazing TC4 titanium alloy by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810931960.8A CN108856941B (en) | 2018-08-16 | 2018-08-16 | Composite solder and method for brazing TC4 titanium alloy by using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108856941A true CN108856941A (en) | 2018-11-23 |
| CN108856941B CN108856941B (en) | 2020-06-02 |
Family
ID=64318160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810931960.8A Active CN108856941B (en) | 2018-08-16 | 2018-08-16 | Composite solder and method for brazing TC4 titanium alloy by using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108856941B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666394A (en) * | 2019-10-09 | 2020-01-10 | 钢铁研究总院 | Titanium-based amorphous solder with low welding temperature and preparation method thereof |
| CN112404798A (en) * | 2020-11-25 | 2021-02-26 | 哈尔滨焊接研究院有限公司 | TC4 titanium alloy flux-cored wire and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2055978A5 (en) * | 1969-08-13 | 1971-05-14 | Commissariat Energie Atomique | Zirconium alloy for brazing zirconium and other metals |
| JPS59116350A (en) * | 1982-12-23 | 1984-07-05 | Masaaki Naga | Alloy foil strip formed by quick liquid cooling for brazing |
| CN103567666A (en) * | 2013-11-15 | 2014-02-12 | 中国航空工业集团公司北京航空制造工程研究所 | Strip-shaped brazing filler metal for titanium alloy brazing and Ti2AlNb alloy brazing, preparation method thereof and brazing method |
| CN104227008A (en) * | 2014-09-23 | 2014-12-24 | 西安瑞鑫科金属材料有限责任公司 | Method for preparing titanium-zirconium-copper-nickel alloy braze powder |
| CN104911512A (en) * | 2015-04-17 | 2015-09-16 | 辽宁工业大学 | Method for making bimetallic composite board by using dendrite reinforced titanium-based metal glass composite material and pure titanium |
| CN105779911A (en) * | 2014-12-16 | 2016-07-20 | 辽宁工业大学 | Dendritic crystal reinforced titanium-based metal glass composite high in strength and tenacity |
| CN108340093A (en) * | 2018-02-07 | 2018-07-31 | 郑州大学 | Titanium-based amorphous solder preparation method and application is in connection TC4 titanium alloys and 304 stainless steels |
-
2018
- 2018-08-16 CN CN201810931960.8A patent/CN108856941B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2055978A5 (en) * | 1969-08-13 | 1971-05-14 | Commissariat Energie Atomique | Zirconium alloy for brazing zirconium and other metals |
| JPS59116350A (en) * | 1982-12-23 | 1984-07-05 | Masaaki Naga | Alloy foil strip formed by quick liquid cooling for brazing |
| CN103567666A (en) * | 2013-11-15 | 2014-02-12 | 中国航空工业集团公司北京航空制造工程研究所 | Strip-shaped brazing filler metal for titanium alloy brazing and Ti2AlNb alloy brazing, preparation method thereof and brazing method |
| CN104227008A (en) * | 2014-09-23 | 2014-12-24 | 西安瑞鑫科金属材料有限责任公司 | Method for preparing titanium-zirconium-copper-nickel alloy braze powder |
| CN105779911A (en) * | 2014-12-16 | 2016-07-20 | 辽宁工业大学 | Dendritic crystal reinforced titanium-based metal glass composite high in strength and tenacity |
| CN104911512A (en) * | 2015-04-17 | 2015-09-16 | 辽宁工业大学 | Method for making bimetallic composite board by using dendrite reinforced titanium-based metal glass composite material and pure titanium |
| CN108340093A (en) * | 2018-02-07 | 2018-07-31 | 郑州大学 | Titanium-based amorphous solder preparation method and application is in connection TC4 titanium alloys and 304 stainless steels |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666394A (en) * | 2019-10-09 | 2020-01-10 | 钢铁研究总院 | Titanium-based amorphous solder with low welding temperature and preparation method thereof |
| CN112404798A (en) * | 2020-11-25 | 2021-02-26 | 哈尔滨焊接研究院有限公司 | TC4 titanium alloy flux-cored wire and preparation method thereof |
| CN112404798B (en) * | 2020-11-25 | 2022-05-20 | 哈尔滨焊接研究院有限公司 | TC4 titanium alloy flux-cored wire and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108856941B (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101362253B (en) | TiNi shape memory alloy and stainless steel instant liquid-phase diffusion welding connection method | |
| CN100408243C (en) | Aluminum alloy and its composite material non-vacuum semi-solid state vibration-rheological connection method | |
| CN107931840B (en) | Laser-induced monotectic and homogeneous reaction welding method for titanium-nickel heterojunction | |
| CN108856941A (en) | A kind of composite soldering and its method for being brazed TC4 titanium alloy | |
| CN102744502A (en) | Wire filling tungsten electrode argon-arc welding process for TA15 titanium alloy and austenitic stainless steel | |
| CN103862147A (en) | Filler wire argon tungsten-arc welding process for molybdenum-copper alloy and nickel-base superalloy | |
| CN103084714A (en) | Laser preprocessing wire filling tungsten inert gas (TIG) welding method of titanium alloy and pure aluminum sheets | |
| Yang et al. | Development of novel CsF–RbF–AlF3 flux for brazing aluminum to stainless steel with Zn–Al filler metal | |
| CN105541366B (en) | A kind of ceramic low-temp method for welding | |
| Monika et al. | The effect of heat input on the mechanical properties of MIG welded dissimilar joints | |
| CN109604865A (en) | For connecting the zirconium base solder of TiAl alloy Yu Ni based high-temperature alloy | |
| CN105965176B (en) | For soldering tungsten-copper alloy and the Ni base chilling solders and soldering processes of stainless steel | |
| Guo et al. | Forming and tensile fracture characteristics of Ti-6Al-4V and T2 Cu vacuum electron beam welded joints | |
| Zhang et al. | Preparation of high-strength TC4/304 dissimilar joint with TA2/304 composite interlayer by a dual-pass laser | |
| CN1442267A (en) | High efficiency aluminium base composite material liquid phase vibrating welding method | |
| CN112479744B (en) | Method and device for preparing active metal connecting layer on surface of carbon fiber reinforced silicon carbide composite material matrix | |
| Shehab et al. | Ring-like laser spot welding of Ti grade2 to AAl3105-O using AlSiMg filler metal | |
| CN109604861A (en) | For connecting the iron-based solder of TiAl alloy Yu Ni based high-temperature alloy | |
| Ren et al. | Microstructures and mechanical properties of TiAl/Ni-based superalloy joints brazed with Fe-based filler metal | |
| CN107962291A (en) | A kind of method for improving aluminum alloy stirring friction welding welding point corrosion resistance | |
| Burhanuddin et al. | Brief review on dissimilar welding using cold metal transfer | |
| Liu et al. | Relationship between interface heat input and microstructure of titanium/steel composite material was prepared by laser processing | |
| CN110860754A (en) | Brazing method for welding aluminum-based composite material and titanium alloy to strengthen particles of intermetallic compound of welding line in dispersion mode | |
| Cui et al. | Ultrasonic-assisted soldering of Cu/Ti joints | |
| Schmoor | Brazing with nickel-based brazing alloys applied by the BrazeSkin technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210730 Address after: 112000 Zone C, Maoshan Industrial Park, economic development zone, Yinzhou District, Tieling City, Liaoning Province Patentee after: LIAONING XINZHONG TECHNOLOGY Co.,Ltd. Address before: 121001, 169 street, Guta District, Liaoning, Jinzhou Patentee before: LIAONING University OF TECHNOLOGY |
|
| TR01 | Transfer of patent right |