CN106001826A - Method for preparing high-strength graphite/Hastelloy N joint - Google Patents
Method for preparing high-strength graphite/Hastelloy N joint Download PDFInfo
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- CN106001826A CN106001826A CN201610535273.5A CN201610535273A CN106001826A CN 106001826 A CN106001826 A CN 106001826A CN 201610535273 A CN201610535273 A CN 201610535273A CN 106001826 A CN106001826 A CN 106001826A
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
-
- 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
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Abstract
The invention discloses a method for preparing a high-strength graphite/Hastelloy N joint. The method for preparing the high-strength graphite/Hastelloy N joint comprises the steps that silicon powder is added into hydroxyethyl cellulose and then smeared between two pieces of gold foil, so that pretreated gold foil is obtained; and graphite, the pretreated gold foil and Hastelloy N are sequentially glued through 502 glue and then placed in a vacuum brazing furnace to be heated, and the high-strength graphite/Hastelloy N joint is obtained after cooling. According to the method for preparing the high-strength graphite/Hastelloy N joint, cost is low, operation is easy, and the original structure of base metal is not destroyed; the performance of the obtained joint is stable, and the shearing strength of the joint at the normal temperature reaches 32.5 MPa and approximates to the shearing performance (30.5 MPa) of a graphite material; and theoretical guidance and technical support are provided for manufacturing of key components in a molten salt reactor, and the application and development of the molten salt reactor are promoted.
Description
Technical field
The invention belongs to soldering tech field, the method relating to preparing high strength graphite/Hastelloy N alloy-junction, particularly relate to a kind of method using silicon doping gold brazing filler metal to prepare high strength graphite/Hastelloy N alloy brazed joint.
Background technology
MSR, as one of candidate's heap-type of forth generation nuclear reactor, has the advantages such as nuclear fuel sustainable use, thermal transition efficiency is high, inherent safety is prominent, receives significant attention.2011, MSR was approved for the Chinese Academy of Sciences's " following advanced nuclear fission " strategy guide's science and technology special project and starts and implement.U.S. government also determined to restart high-temperature molten salt reactor project in 2015.
Hastelloy
N alloy, as a kind of solution strengthening type nickel base superalloy, has excellent mechanical behavior under high temperature, corrosion resistance and anti-radiation performance.In MSR, Hastelloy
N alloy is often used to manufacture the structure members such as return, core vessel and heat exchanger.
Graphite is a kind of important structural material, has the advantages such as light weight, stability is high, corrosion resistance is strong, all has broad application prospects in fields such as Aeronautics and Astronautics, navigation, nuclear powers.In nuclear power field, graphite is slowing material important in reactor.Solve graphite and Hastelloy
The connectivity problem of N alloy is most important to development MSR.Owing to graphite and the physics of metal material, chemical property are widely different, conventional welding technology is used to be difficult to the connection realized between the two.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes the method that one prepares high strength graphite/Hastelloy N alloy-junction, the method low cost, simple to operate, do not destroy mother metal original structure, the joint performance obtained is stable, room temperature down cut intensity is up to 32.5MPa, suitable with graphite material cutting performance (30.5MPa), provide theoretical direction and technical support for the manufacture of critical component in MSR, promote development and the application of MSR.
Described one prepares the method for high strength graphite/Hastelloy N alloy-junction, it is characterised in that added by silica flour in hydroxyethyl cellulose, is then coated with obtaining pretreatment native gold between two native golds；By graphite, pretreatment native gold and Hastelloy
It is bonding that N alloy uses glue to carry out successively, then is placed in heating soldering in vacuum brazing furnace, obtains high strength graphite/Hastelloy after cooling
N alloy-junction, after soldering completes, defines auri and Ni-based solid solution and Dispersed precipitate in block Mo therein in brazed seam6Ni6C carbide；The intracrystalline of the Hastelloy N mother metal near brazed seam side and grain boundaries separate out substantial amounts of carbide, and (wherein intracrystalline carbide is Mo2C, grain boundary carbide is MoC) so that define thermal coefficient of expansion gradient transition structure in joint, alleviate graphite and Hastelloy
The high residual stress brought by thermal coefficient of expansion mispairing between N alloy；Mo in brazed seam6Ni6The formation of C hard phase reduces the thermal coefficient of expansion of solder；The a large amount of carbides separated out in the Hastelloy N mother metal of brazed seam side define thermal coefficient of expansion gradient transition structure in making joint.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that specifically comprise the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) silica flour is added in hydroxyethyl cellulose, be then coated with obtaining pretreatment native gold between two native golds；
3) step 1) is processed the graphite, Hastelloy N alloy and the step 2 that obtain) processing the pretreatment native gold obtained, to use 502 glue to carry out successively bonding, then it is placed in vacuum brazing furnace and is heated to 250～350 DEG C, insulation 25～30min, it is again heated to 920～940 DEG C, insulation 8～12min, being then heated to brazing temperature, be incubated 5～15min, then reduction stove warms to room temperature and obtains high strength graphite/Hastelloy
N alloy-junction.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that step 2) in the thickness of native gold be 0.02～0.06mm, its purity is 99.985%.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that step 2) in the thickness of native gold be 0.025mm, its purity is 99.985%.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that step 2) in the granularity of silica flour be 300～1000 mesh, its purity is 99.99%.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that step 2) in the granularity of silica flour be 600 mesh, its purity is 99.99%.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that in step 3), brazing temperature is 980～1100 DEG C, preferably 1060 DEG C.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that the concrete operations that in step 3), reduction stove warms to room temperature are as follows: with the speed of 4～8 DEG C/min, furnace temperature is down to 300 DEG C, then cools to room temperature with the furnace.
The method of described preparation high strength graphite/Hastelloy N alloy-junction, it is characterised in that the concrete operations that in step 3), reduction stove warms to room temperature are as follows: with the speed of 6 DEG C/min, furnace temperature is down to 300 DEG C, then cools to room temperature with the furnace.
The high-quality that the present invention is achieved between graphite with Hastelloy N alloy by application soldering tech is connected, the method low cost, simple to operate, do not destroy mother metal original structure, the joint performance obtained is stable, room temperature down cut intensity is up to 32.5MPa, suitable with graphite material cutting performance (30.5MPa), provide theoretical direction and technical support for the manufacture of critical component in MSR, promote development and the application of MSR.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention 4-6 gained high strength graphite/Hastelloy N alloy-junction and comparative example gained graphite/Hastelloy
The shear strength comparison diagram of N alloy-junction；
Fig. 2 is that graphite, pretreatment native gold and Hastelloy N alloy are used 502 glue to carry out bonding schematic diagram by step 3) of the present invention successively；
Fig. 3 is gained of the present invention high strength graphite/Hastelloy
The structural representation of N alloy-junction.
In figure, 1 is graphite, and 2 is native gold, and 3 is silica flour, and 4 is Hastelloy N alloy；5 is Ni based solid solution, and 6 is Mo6Ni6C, 7 is Au based solid solution.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
The method that the one that the present invention proposes prepares high strength graphite/Hastelloy N alloy-junction, adds silica flour in hydroxyethyl cellulose, is then coated with obtaining pretreatment native gold between two native golds；Using 502 glue to carry out successively graphite, pretreatment native gold and Hastelloy N alloy bonding, be then placed in vacuum brazing furnace heating, cooling obtains high strength graphite/Hastelloy
N alloy-junction.
Embodiment 2
The method that the one that the present invention proposes prepares high strength graphite/Hastelloy N alloy-junction, specifically comprises the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) adding in hydroxyethyl cellulose by silica flour, the granularity of silica flour is 300 mesh, and its purity is 99.99%, is then coated with obtaining pretreatment native gold between two native golds, and the thickness of native gold is 0.02mm, and its purity is 99.985%；
3) as shown in Figure 2,502 glue are used to carry out successively the native gold 2 and Hastelloy N alloy 4 of graphite 1, pretreatment bonding, then it is placed in vacuum brazing furnace and is heated to 250 DEG C, insulation 30min, is again heated to 920 DEG C, is incubated 12min, it is then heated to 980 DEG C, insulation 15min, is then down to 300 DEG C by furnace temperature with the speed of 4 DEG C/min, then cools to room temperature with the furnace and obtain high strength graphite/Hastelloy
N alloy-junction, its structure is as it is shown on figure 3, after soldering completes, define auri solid solution 7 and Ni-based solid solution 5 and Dispersed precipitate in block Mo therein in brazed seam6Ni6
C carbide 6, reduces the thermal coefficient of expansion of solder；Hastelloy near brazed seam side
The intracrystalline of N mother metal and grain boundaries carbide precipitate, at intracrystalline, carbide precipitate is Mo2C, grain boundaries carbide precipitate is MoC so that defines thermal coefficient of expansion gradient transition structure in joint, alleviates graphite and Hastelloy
The high residual stress brought by thermal coefficient of expansion mispairing between N alloy.
Embodiment 3
The method that the one that the present invention proposes prepares high strength graphite/Hastelloy N alloy-junction, specifically comprises the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) adding in hydroxyethyl cellulose by silica flour, the granularity of silica flour is 1000 mesh, and its purity is 99.99%, is then coated with obtaining pretreatment native gold between two native golds, and the thickness of native gold is 0.06mm, and its purity is 99.985%；
3) as shown in Figure 2,502 glue are used to carry out successively the native gold 2 and Hastelloy N alloy 4 of graphite 1, pretreatment bonding, then it is placed in vacuum brazing furnace and is heated to 350 DEG C, insulation 25min, is again heated to 940 DEG C, is incubated 8min, it is then heated to 1100 DEG C, insulation 5min, is then down to 300 DEG C by furnace temperature with the speed of 8 DEG C/min, then cools to room temperature with the furnace and obtain high strength graphite/Hastelloy
N alloy-junction, its structure is as it is shown on figure 3, after soldering completes, define auri solid solution 7 and Ni-based solid solution 5 and Dispersed precipitate in block Mo therein in brazed seam6Ni6
C carbide 6, reduces the thermal coefficient of expansion of solder；Hastelloy near brazed seam side
The intracrystalline of N mother metal and grain boundaries carbide precipitate, at intracrystalline, carbide precipitate is Mo2C, grain boundaries carbide precipitate is MoC so that defines thermal coefficient of expansion gradient transition structure in joint, alleviates graphite and Hastelloy
The high residual stress brought by thermal coefficient of expansion mispairing between N alloy.
Embodiment 4
The method that the one that the present invention proposes prepares high strength graphite/Hastelloy N alloy-junction, specifically comprises the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) being added in hydroxyethyl cellulose by the silica flour of 5at.%, the granularity of silica flour is 600 mesh, and its purity is 99.99%, is then coated with obtaining pretreatment native gold between two native golds, and the thickness of native gold is 0.025mm, and its purity is 99.985%；
3) as shown in Figure 2,502 glue are used to carry out successively the native gold 2 and Hastelloy N alloy 4 of graphite 1, pretreatment bonding, then it is placed in vacuum brazing furnace and is heated to 300 DEG C with the speed of 10 DEG C/min, insulation 28min, then it is heated to 930 DEG C with the speed of 10 DEG C/min, it is incubated 10min, then it is heated to 1060 DEG C with the speed of 10 DEG C/min, insulation 10min, is then down to 300 DEG C by furnace temperature with the speed of 6 DEG C/min, then cools to room temperature with the furnace and obtain high strength graphite/Hastelloy
N alloy-junction, its structure is as it is shown on figure 3, after soldering completes, define auri solid solution 7 and Ni-based solid solution 5 and Dispersed precipitate in block Mo therein in brazed seam6Ni6
C carbide 6, reduces the thermal coefficient of expansion of solder；Hastelloy near brazed seam side
The intracrystalline of N mother metal and grain boundaries carbide precipitate, at intracrystalline, carbide precipitate is Mo2C, grain boundaries carbide precipitate is MoC so that defines thermal coefficient of expansion gradient transition structure in joint, alleviates graphite and Hastelloy
The high residual stress brought by thermal coefficient of expansion mispairing between N alloy.
Embodiment 5
The method that the one that the present invention proposes prepares high strength graphite/Hastelloy N alloy-junction, specifically comprises the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) being added in hydroxyethyl cellulose by the silica flour of 10at.%, the granularity of silica flour is 600 mesh, and its purity is 99.99%, is then coated with obtaining pretreatment native gold between two native golds, and the thickness of native gold is 0.025mm, and its purity is 99.985%；
3) as shown in Figure 2,502 glue are used to carry out successively the native gold 2 and Hastelloy N alloy 4 of graphite 1, pretreatment bonding, then it is placed in vacuum brazing furnace and is heated to 300 DEG C with the speed of 10 DEG C/min, insulation 28min, then it is heated to 930 DEG C with the speed of 10 DEG C/min, it is incubated 10min, then it is heated to 1060 DEG C with the speed of 10 DEG C/min, insulation 10min, is then down to 300 DEG C by furnace temperature with the speed of 6 DEG C/min, then cools to room temperature with the furnace and obtain high strength graphite/Hastelloy
N alloy-junction, its structure is as it is shown on figure 3, after soldering completes, define auri solid solution 7 and Ni-based solid solution 5 and Dispersed precipitate in block Mo therein in brazed seam6Ni6
C carbide 6, reduces the thermal coefficient of expansion of solder；Hastelloy near brazed seam side
The intracrystalline of N mother metal and grain boundaries carbide precipitate, at intracrystalline, carbide precipitate is Mo2C, grain boundaries carbide precipitate is MoC so that defines thermal coefficient of expansion gradient transition structure in joint, alleviates graphite and Hastelloy
The high residual stress brought by thermal coefficient of expansion mispairing between N alloy.
Embodiment 6
The method that the one that the present invention proposes prepares high strength graphite/Hastelloy N alloy-junction, specifically comprises the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) being added in hydroxyethyl cellulose by the silica flour of 15at.%, the granularity of silica flour is 600 mesh, and its purity is 99.99%, is then coated with obtaining pretreatment native gold between two native golds, and the thickness of native gold is 0.025mm, and its purity is 99.985%；
3) as shown in Figure 2,502 glue are used to carry out successively the native gold 2 and Hastelloy N alloy 4 of graphite 1, pretreatment bonding, then it is placed in vacuum brazing furnace and is heated to 300 DEG C with the speed of 10 DEG C/min, insulation 28min, then it is heated to 930 DEG C with the speed of 10 DEG C/min, it is incubated 10min, then it is heated to 1060 DEG C with the speed of 10 DEG C/min, insulation 10min, is then down to 300 DEG C by furnace temperature with the speed of 6 DEG C/min, then cools to room temperature with the furnace and obtain high strength graphite/Hastelloy
N alloy-junction, its structure is as it is shown on figure 3, after soldering completes, define auri solid solution 7 and Ni-based solid solution 5 and Dispersed precipitate in block Mo therein in brazed seam6Ni6
C carbide 6, reduces the thermal coefficient of expansion of solder；Hastelloy near brazed seam side
The intracrystalline of N mother metal and grain boundaries carbide precipitate, at intracrystalline, carbide precipitate is Mo2C, grain boundaries carbide precipitate is MoC so that defines thermal coefficient of expansion gradient transition structure in joint, alleviates graphite and Hastelloy
The high residual stress brought by thermal coefficient of expansion mispairing between N alloy.
Comparative example
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) two native golds using 502 gluing connecing obtain pretreatment native gold, the thickness of native gold is 0.025mm, and its purity is 99.985%；
3) as shown in Figure 2,502 glue are used to carry out successively the native gold 2 and Hastelloy N alloy 4 of graphite 1, pretreatment bonding, then it is placed in vacuum brazing furnace and is heated to 300 DEG C with the speed of 10 DEG C/min, insulation 28min, then it is heated to 930 DEG C with the speed of 10 DEG C/min, it is incubated 10min, then it is heated to 1060 DEG C with the speed of 10 DEG C/min, insulation 10min, is then down to 300 DEG C by furnace temperature with the speed of 6 DEG C/min, then cools to room temperature with the furnace and obtain graphite/Hastelloy N alloy-junction.
Comparative example and embodiment 4-6 are carried out shear strength detection, and its result is as shown in Figure 1.As shown in Figure 1: the embodiment of the present invention 4 gained high strength graphite/Hastelloy N alloy-junction shear strength is the highest, reaches 32.5MPa.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (10)
1. the method preparing high strength graphite/Hastelloy N alloy-junction, it is characterised in that silica flour is added in hydroxyethyl cellulose, be then coated with obtaining pretreatment native gold between two native golds；Glue is used to carry out successively graphite, pretreatment native gold and Hastelloy N alloy bonding, it is placed in heating soldering in vacuum brazing furnace again, high strength graphite/Hastelloy N alloy-junction is obtained after cooling, after soldering completes, define auri and Ni-based solid solution and Dispersed precipitate in brazed seam in block Mo therein6Ni6C carbide, reduces the thermal coefficient of expansion of solder；The intracrystalline of the Hastelloy N mother metal near brazed seam side and grain boundaries carbide precipitate so that define thermal coefficient of expansion gradient transition structure in joint, alleviate the high residual stress brought by thermal coefficient of expansion mispairing between graphite and Hastelloy N alloy.
The method of preparation high strength graphite the most according to claim 1/Hastelloy N alloy-junction, it is characterised in that carbide precipitate is Mo at the intracrystalline of the Hastelloy N mother metal of brazed seam side2C, grain boundaries carbide precipitate is MoC.
The method of preparation high strength graphite the most according to claim 1/Hastelloy N alloy-junction, it is characterised in that specifically comprise the following steps that
1) put into Hastelloy N alloy and graphite to fill in the ultrasonic washing unit of acetone and be carried out, use 400#, 600#, 1000#, 1500# sand papering its to be connected the most successively, be then polished；
2) silica flour is added in hydroxyethyl cellulose, be then coated with obtaining pretreatment native gold between two native golds；
3) step 1) is processed the graphite, Hastelloy N alloy and the step 2 that obtain) processing the pretreatment native gold obtained, to use 502 glue to carry out successively bonding, then it is placed in vacuum brazing furnace and is heated to 250～350 DEG C, insulation 25～30min, it is again heated to 920～940 DEG C, insulation 8～12min, being then heated to brazing temperature, be incubated 5～15min, then reduction stove warms to room temperature and obtains high strength graphite/Hastelloy N alloy-junction.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterised in that step 2) in the thickness of native gold be 0.02～0.06mm, its purity is 99.985%.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterised in that step 2) in the thickness of native gold be 0.025mm, its purity is 99.985%.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterised in that step 2) in the granularity of silica flour be 300～1000 mesh, its purity is 99.99%.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterised in that step 2) in the granularity of silica flour be 600 mesh, its purity is 99.99%.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterised in that in step 3), brazing temperature is 980～1100 DEG C, preferably 1060 DEG C.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterized in that the concrete operations that in step 3), reduction stove warms to room temperature are as follows: furnace temperature is down to 300 DEG C with the speed of 4～8 DEG C/min, then cools to room temperature with the furnace.
The method of preparation high strength graphite the most according to claim 3/Hastelloy N alloy-junction, it is characterized in that the concrete operations that in step 3), reduction stove warms to room temperature are as follows: furnace temperature is down to 300 DEG C with the speed of 6 DEG C/min, then cools to room temperature with the furnace.
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| CN110405300A (en) * | 2019-07-29 | 2019-11-05 | 浙江工业大学 | A method of high intensity AlCoCrFeNi high-entropy alloy connector is prepared using Ni base solder |
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| CN108188520A (en) * | 2017-12-01 | 2018-06-22 | 浙江工业大学 | A kind of method using Pd-Si composite soldering soldering connection DD98M single crystal super alloys |
| CN110369820A (en) * | 2019-07-19 | 2019-10-25 | 浙江工业大学 | A method of using Ni-Cr-W-B-Si-Fe solder brazing Hastelloy N alloy |
| CN110405300A (en) * | 2019-07-29 | 2019-11-05 | 浙江工业大学 | A method of high intensity AlCoCrFeNi high-entropy alloy connector is prepared using Ni base solder |
| CN110405300B (en) * | 2019-07-29 | 2021-04-27 | 浙江工业大学 | Method for preparing high-strength AlCoCrFeNi high-entropy alloy joint by adopting Ni-based brazing filler metal |
| CN111992834A (en) * | 2020-08-17 | 2020-11-27 | 浙江工业大学 | Method for brazing Hastelloy N alloy by adopting Ni-Cr-Si brazing filler metal paste |
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