CN108907502A - It is a kind of for being brazed the amorphous state high-entropy alloy solder and preparation method thereof of tantalum Ta1 Yu 1Cr18Ni9 stainless steel - Google Patents
It is a kind of for being brazed the amorphous state high-entropy alloy solder and preparation method thereof of tantalum Ta1 Yu 1Cr18Ni9 stainless steel Download PDFInfo
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- CN108907502A CN108907502A CN201811013732.9A CN201811013732A CN108907502A CN 108907502 A CN108907502 A CN 108907502A CN 201811013732 A CN201811013732 A CN 201811013732A CN 108907502 A CN108907502 A CN 108907502A
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- solder
- amorphous state
- alloy
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- brazed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0233—Sheets, foils
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of for being brazed the amorphous state high-entropy alloy solder and preparation method thereof of tantalum Ta1 Yu 1Cr18Ni9 stainless steel.It is grouped as by the group of following molar percentage, 7.0%~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~8.0%Zr, 2.0%~3.0%Ta, 2.5%~4.5%B, remaining is Ni.It is first melted respectively with vacuum arc furnace ignition and matches Ni-40Cr-10Ta and Zr-20Cr-20Ta intermediate alloy, the metals such as two kinds of intermediate alloys and remaining Ni, Fe, Si, B are put into crucible again, it is melted in vacuum arc furnace ignition and matches solder master alloy, mother alloy melt is prepared into amorphous state high-entropy alloy solder foil through rapid solidification.For this kind of amorphous state high-entropy alloy solder fusing point between 980 DEG C~1050 DEG C, brazing temperature is lower than the grain coarsening temperature of steel, and brazed joint performance is higher.Solder flexibility is good, easy to process and assembly；In welding with the wetability of tantalum and steel is good, brazed seam corrosion resisting property is excellent, joint mechanical property is higher.
Description
Technical field
The invention belongs to technical field of welding materials, more particularly to one kind is for being brazed tantalum Ta1 and 1Cr18Ni9 stainless steel
Amorphous state high-entropy alloy solder and preparation method thereof.
Background technique
Technical pure tantalum Ta1 has excellent high-temperature behavior, high corrosion resistance, higher ductility, in chemical industry, electricity
The fields such as son, medical treatment and atomic energy industry are widely used.But as rare precious metal, tantalum is often used in the form of steel construction lining.
This tantalum cladding stainless steel composite construction has both the performance advantage of tantalum and stainless steel, but its preparation and use process are inevitably
It is related to the Welding Problems of tantalum and stainless steel.
Currently, having electron beam welding, argon arc welding, heliarc welding etc. about tantalum/steel welding method both at home and abroad.The fusing point of tantalum is up to
2992 DEG C, be refractory metal, tantalum not yet melts in above-mentioned fusion welding process and steel melts already, causes welding pool to deviate, sternly
Ghost image rings welding quality；Meanwhile the chemical melting of tantalum and stainless steel is poor, is also easy to produce a large amount of Fe2The brittle metals such as Ta, TaC
Between compound, cause welding joint mechanical property to decline.
In order to realize effective connection of tantalum and stainless steel, first need to avoid fusion welding to improve weldering using method for welding
Connect quality.Second it needs to select suitable welding material, inhibits weld metal zone brittle intermetallic thing, lifting sub performance.
Summary of the invention
The purpose of the present invention is to provide a kind of for being brazed the amorphous state high-entropy alloy of tantalum Ta1 Yu 1Cr18Ni9 stainless steel
Solder and preparation method thereof, solves existing welding method and easily forms hard crisp intermetallic compound to cause to crack, be not easy to obtain
The problem of high-performance product.
The present invention uses following technical scheme to achieve the above object：
It is a kind of for being brazed the amorphous state high-entropy alloy solder of tantalum Ta1 Yu 1Cr18Ni9 stainless steel, by following mole hundred
The group of ratio is divided to be grouped as：7.0%~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~8.0%Zr,
2.0%~3.0%Ta, 2.5%~4.5%B, remaining is Ni；The amorphous state high-entropy alloy solder fusing point 980~1050 DEG C it
Between
It is a kind of for being brazed the preparation method of the amorphous state high-entropy alloy solder of tantalum Ta1 and 1Cr18Ni9 stainless steel, including
Following steps：
Step 1 matches intermediate alloy using vacuum arc furnace ignition is molten；
By mole composition, 7.0%~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~
8.0%Zr, 2.0%~3.0%Ta, 2.5%~4.5%B, remaining is Ni, is converted into mass percent and weighs various High Purity Golds
Belong to, is melted respectively in vacuum arc furnace ignition and match Ni-40Cr-10Ta and Zr-20Cr-20Ta intermediate alloy；
Step 2 matches solder master alloy using vacuum arc furnace ignition is molten；
The above-mentioned molten various intermediate alloys prepared and remaining pure metal Ni, Fe, Si, B are put into crucible, in vacuum
It is melted in electric arc furnaces and matches solder master alloy；
The mother alloy melt that upper step is melted is prepared by rapid solidification with a thickness of 50~80 μm by step 3, wide by 6
~8mm, the amorphous state high-entropy alloy foil of long 1~2m.
The beneficial effects of the invention are as follows：High-performance amorphous state high-entropy alloy solder of the invention has excellent intensity, tough
Property and corrosion resisting property, are not easy to form weld metal zone brittle intermetallic thing phase, are easily obtained high-performance tantalum/stainless steel brazed joint；The height
Performance amorphous alloy solder and the wetability of heterogeneous base material are good, and brazing operation technique is simple, convenience and high-efficiency, adapt to soldering processes
Property it is good, process be easy to control and realize automation, convenient for engineering promote.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The amorphous brazing filler metal for being used to be brazed technical pure tantalum and stainless steel of the invention, is made of following molar percentage：7.0%
~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~8.0%Zr, 2.0%~3.0%Ta, 2.5%~
4.5%B, remaining is Ni.The solder belongs to high-entropy alloy, and rapid solidification product is amorphous state foil.By welding
Journey, the brazed seam metal of formation are the crystalline state high-entropy alloy of the pivots such as Ni-Fe-Si-Zr-Cr-Ta composition.Above-mentioned more pivot amorphous are high
The brazed seam that entropy alloy solder postwelding is formed substantially eliminates weld metal zone brittle intermetallic thing, and joint performance is higher.
In solder ingredient of the invention, composition and content restriction reason to each chemical element are described below respectively：
In order to improve the mechanical property of tantalum Yu steel brazed joint, the chemical component for needing to obtain brazed seam metal is in form height
The pivot content range of entropy alloy.For the composition characteristic of specific base metals tantalum and steel to be welded, alloy Principal variables selection Ni-Fe-
The hexa-atomic alloy of Si-Zr-Cr-Ta.Main cause has at 4 points：1. the fusing of base material and the area Jin Feng base material are to molten bath in brazing process
In dissolution it is inevitable, generate weld metal zone brittle intermetallic thing for prevention weld seam, Fe and Ta must be contained in weld seam target component；②
Zr and Ni and active metal Ta has good compatibility, and weld metal zone brittle intermetallic thing can be effectively suppressed with it and generate；3. passing through
B, Si element are added in solder, one is reduces fusing point, and two be activation striping；4. the addition of Cr can effectively improve the molten of solder
It with compatibility, formability and brazing filler metal intensity, can also improve the fusion character of weld seam and steel, improve brazing filler metal interfacial combined function.
The high entropy solder foil of amorphous state used in the method for the present invention, preparation method follow the steps below to implement：
Step 1 matches intermediate alloy using vacuum arc furnace ignition is molten：
By mole composition, 7.0%~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~
8.0%Zr, 2.0%~3.0%Ta, 2.5%~4.5%B, remaining is Ni.It is converted into mass percent and weighs various High Purity Golds
Belong to, is melted respectively in vacuum arc furnace ignition and match Ni-40Cr-10Ta and Zr-20Cr-20Ta intermediate alloy；
Step 2 matches solder master alloy using vacuum arc furnace ignition is molten：
The above-mentioned molten various intermediate alloys prepared and remaining pure metal Ni, Fe, Si, B are put into crucible, in vacuum
It is melted in electric arc furnaces and matches solder master alloy.
The mother alloy melt that upper step is melted is prepared by rapid solidification with a thickness of 50~80 μm by step 3, wide about
6~8mm is about the amorphous state high-entropy alloy foil of 1~2m.The amorphous state high-entropy alloy foil has excellent intensity, toughness
And corrosion resisting property, and have excellent moldability.
The amorphous alloy solder foil obtained using above-mentioned preparation method, when being brazed the assembly of tantalum/steel sample connector,
First foil is placed between the interface to be welded of tantalum and steel to be welded, then according to conventional vacuum method for welding to the connector assembled
It heated, kept the temperature and cooled and solidified, realize the brazing filler metal of tantalum/steel.
Table 1 is the solder composition proportion table of four embodiments of the invention
Embodiment 1
The quality that each component high pure metal is determined according to the molar percentage in embodiment 1 in table 1, according to above-mentioned solder system
Standby step is implemented, about 60 μm of the amorphous alloy solder foil thickness of preparation.Using the amorphous alloy solder foil, to Ta1 with
0Cr18Ni9Ti carries out furnace brazing, 1090 DEG C of brazing temperature, keeps the temperature 5min, and the shear strength for obtaining connector is 210.0MPa.
Embodiment 2
The quality that each component high pure metal is determined according to the molar percentage in embodiment 2 in table 1, according to above-mentioned solder system
Standby step is implemented, and thick about 55 μm of state amorphous alloy solder foil is prepared.Using the amorphous alloy solder foil, to Ta2 with
0Cr18Ni9Ti carries out furnace brazing, 1070 DEG C of brazing temperature, keeps the temperature 5min, and the shear strength for obtaining connector is 221.0MPa.
Embodiment 3
The quality that each component high pure metal is determined according to the molar percentage in embodiment 3 in table 1, according to above-mentioned solder system
Standby step is implemented, and thick about 80 μm of state amorphous alloy solder foil is prepared.Using the amorphous alloy solder foil, to Ta1 with
0Cr18Ni9Ti carries out vacuum brazing, 1065 DEG C of brazing temperature, keeps the temperature 5min, and the shear strength for obtaining connector is 198.0MPa.
Embodiment 4
The quality that each component high pure metal is determined according to the molar percentage in embodiment 4 in table 1, according to above-mentioned solder system
Standby step is implemented, and thick about 70 μm of state amorphous alloy solder foil is prepared.Using the amorphous alloy solder foil, to Ta1 with
0Cr18Ni9Ti furnace brazing, keeps the temperature 5min by 1080 DEG C of brazing temperature, and the shear strength for obtaining connector is 200.0MPa.
In conclusion amorphous state high-entropy alloy solder fusing point of the invention is between 980~1050 DEG C, brazing temperature is lower than
The grain coarsening temperature of steel, brazed joint performance are higher.Solder flexibility is good, easy to process and assembly；Welding when with tantalum and
The wetability of steel is good, brazed seam fine corrosion resistance, and joint mechanical property significantly improves；This kind of amorphous state high-entropy alloy solder
Preparation process is simple, low manufacture cost, convenient for promoting.Tantalum/stainless is carried out using amorphous state high-entropy alloy solder foil of the invention
The vacuum brazing of steel, soldering processes are simple, easy to operate.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, not
A variety of change, modification, replacement and modification can be can be carried out still to these embodiments in the case where being detached from the principle and spirit of the invention
It falls under the scope of the present invention.
Claims (2)
1. a kind of for being brazed the amorphous state high-entropy alloy solder of tantalum Ta1 Yu 1Cr18Ni9 stainless steel, which is characterized in that by following
The group of molar percentage is grouped as：7.0%~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~
8.0%Zr, 2.0%~3.0%Ta, 2.5%~4.5%B, remaining is Ni；The amorphous state high-entropy alloy solder fusing point 980~
Between 1050 DEG C.
2. a kind of for being brazed the preparation method of the amorphous state high-entropy alloy solder of tantalum Ta1 and 1Cr18Ni9 stainless steel, feature
It is, includes the following steps：
Step 1 matches intermediate alloy using vacuum arc furnace ignition is molten；
By mole composition, 7.0%~9.0%Cr, 5.0%~8.0%Si, 5.0%~7.0%Fe, 6.0%~
8.0%Zr, 2.0%~3.0%Ta, 2.5%~4.5%B, remaining is Ni, is converted into mass percent and weighs various High Purity Golds
Belong to, is melted respectively in vacuum arc furnace ignition and match Ni-40Cr-10Ta and Zr-20Cr-20Ta intermediate alloy；
Step 2 matches solder master alloy using vacuum arc furnace ignition is molten；
The above-mentioned molten various intermediate alloys prepared and remaining pure metal Ni, Fe, Si, B are put into crucible, in vacuum arc
It is melted in furnace and matches solder master alloy；
The mother alloy melt that upper step is melted is prepared by rapid solidification with a thickness of 50~80 μm by step 3, wide by 6~
8mm, the amorphous state high-entropy alloy foil of long 1~2m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013732.9A CN108907502A (en) | 2018-08-31 | 2018-08-31 | It is a kind of for being brazed the amorphous state high-entropy alloy solder and preparation method thereof of tantalum Ta1 Yu 1Cr18Ni9 stainless steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013732.9A CN108907502A (en) | 2018-08-31 | 2018-08-31 | It is a kind of for being brazed the amorphous state high-entropy alloy solder and preparation method thereof of tantalum Ta1 Yu 1Cr18Ni9 stainless steel |
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|---|---|
| CN108907502A true CN108907502A (en) | 2018-11-30 |
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| CN201811013732.9A Pending CN108907502A (en) | 2018-08-31 | 2018-08-31 | It is a kind of for being brazed the amorphous state high-entropy alloy solder and preparation method thereof of tantalum Ta1 Yu 1Cr18Ni9 stainless steel |
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Cited By (3)
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| CN109967852A (en) * | 2019-04-04 | 2019-07-05 | 贵州理工学院 | A kind of diffusion welding connection method of CoCrCuFeNi high-entropy alloy |
| CN111421261A (en) * | 2019-01-10 | 2020-07-17 | 天津大学 | High-entropy alloy solder for electronic packaging assembly brazing and preparation method thereof |
| CN114101970A (en) * | 2021-11-04 | 2022-03-01 | 杭州华光焊接新材料股份有限公司 | Nickel-based amorphous brazing filler metal strip and preparation method thereof |
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| CN111421261A (en) * | 2019-01-10 | 2020-07-17 | 天津大学 | High-entropy alloy solder for electronic packaging assembly brazing and preparation method thereof |
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| CN109967852A (en) * | 2019-04-04 | 2019-07-05 | 贵州理工学院 | A kind of diffusion welding connection method of CoCrCuFeNi high-entropy alloy |
| CN114101970A (en) * | 2021-11-04 | 2022-03-01 | 杭州华光焊接新材料股份有限公司 | Nickel-based amorphous brazing filler metal strip and preparation method thereof |
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Application publication date: 20181130 |