CN103240543A - Nickel-based amorphous brazing filler metal - Google Patents
Nickel-based amorphous brazing filler metal Download PDFInfo
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- CN103240543A CN103240543A CN2012100370300A CN201210037030A CN103240543A CN 103240543 A CN103240543 A CN 103240543A CN 2012100370300 A CN2012100370300 A CN 2012100370300A CN 201210037030 A CN201210037030 A CN 201210037030A CN 103240543 A CN103240543 A CN 103240543A
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- nickel
- brazing filler
- filler metal
- solder
- based amorphous
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Abstract
The invention relates to nickel-based amorphous brazing filler metal used for brazing of nickel-based superalloys. The alloy composition of the nickel-based amorphous brazing filler metal is NiRestCraCobAlcBdYe, wherein 15</=a</=20wt%, 7</=b</=12wt%, 3</=c</=5wt%, 2</=d</=3.5wt%, 0.2</=e</=0.4wt%, and the balance nickel. Electric arc melting is performed according to the alloy in the composition proportion to obtain brazing filler alloy, and then an amorphous foil strip is obtained via a single-roll melt-spinning technology. The amorphous brazing filler metal has the advantages of simple preparation process, good toughness of the formed amorphous foil strip, and anti-oxidation, anticorrosion and high strength of formed brazed joint, and can be widely applied to vacuum brazing of various nickel-based superalloys.
Description
Technical field
The present invention relates to a kind of Ni-based amorphous brazing filler metal for the nickel base superalloy soldering, belong to amorphous brazing filler metal and nickel base superalloy soldering field.
Background technology
The nickel-based series solder is because of its soldered fitting intensity height, anti-oxidant, corrosion-resistant, and the high temperature resistant excellent properties that waits is particularly suitable for the soldering of high temperature alloy, uses very extensive at Aeronautics and Astronautics, electromechanics, energy field.Contain a large amount of intermetallic compounds in crystalline state nickel-based solder solder itself tissue, cause the solder quality very crisp and can't carry out plastic working, normally with powdery, the supply of adhesive tape shape, limited the application of nickel-based solder to a certain extent.Simultaneously, can form a large amount of eutectic structures in the brazed seam that adopts the welding of crystalline state nickel-based solder to form, the fragility of brazed seam strengthens, and the intensity of joint and plasticity reduce.Therefore, the crystalline state nickel-based solder is restricted as its range of application of solder.
Adopt chilling technique to be easy to realize the decrystallized of nickel-based solder, be easy to make required paper tinsel belt shape, the more important thing is that the amorphous foil band composition that adopts chilling technique to make is even, easy to use, preparation cost is low, fusing point is low, good fluidity, good, the formed soldered fitting quality of wetability advantages of higher.Therefore, chilling technique prepares amorphous brazing filler metal and obtains more and more widely application.
The main component of conventional Ni-base superalloy solder is matrix Ni and Cr, Si, elements such as B, Fe, Ni-Cr-Si-B is the fusing point that nonmetalloid Si in the nickel-based solder and B can significantly reduce solder, but the silicide in the brazed seam is difficult for disappearing in brazing process, when the Si element surpassed a certain amount of 0.4wt% in weld seam, toughness and the high-temperature behavior of joint sharply descended.And the B in the solder is little owing to atomic radius, and diffusion coefficient is big, spreads to mother metal than being easier to.Boron content in the brazed seam is dropped to below the limit of solubility, and the boride in the brazed seam will disappear mutually.Therefore, must be that nickel-based solder carries out optimizing components to Ni-Cr-Si-B, eliminate Si element harmful in the solder on the one hand, reduce the B constituent content; On the other hand by in solder, adding proper C o, Al, Y element, in the non-oxidizability, the elevated temperature strength that improve solder and play outside the effect of solution strengthening, the raising of the solder fusion temperature that the reduction because of the removal of Si element and B element causes can also be remedied, the fusion temperature of solder can be reduced to the brazing temperature that matches.
For the fusing point that reduces nickel-based solder and the mechanical property of improving its welding point, must be that solder alloy carries out optimizing components to the Ni-Cr-Si-B of routine, simultaneously, nickel-base alloy solder after optimizing is prepared into amorphous paper tinsel band, when guaranteed performance requires, further improves its practicality and ease for use.
Summary of the invention
The objective of the invention is formability, nickel base superalloy soldered fitting mechanical property problem in order to solve nickel-based solder.A kind of easy processing is provided, and the Ni-based amorphous brazing filler metal of soldered fitting function admirable is the nickel-base alloy solder to substitute conventional Ni-Cr-Si-B.By adding Co, Al, Y element and removing the Si element and reduce the B element and optimized alloying component, adopt single roller melt to get rid of the band chilling technique it is prepared into amorphous paper tinsel band solder, be used for the soldering nickel base superalloy, guarantee good soldering processes and joint mechanical property.
A kind of Ni-based amorphous brazing filler metal Ni provided by the invention
RestCr
aCo
bAl
cB
dY
e, 15≤a≤20wt% wherein; 7≤b≤12wt%; 3≤c≤5wt%; 2≤d≤3.5wt%; 0.2≤e≤0.4wt%, all the other are nickel, and each constituent mass sum is 100%.
It is identical that solder preparation method and general single roller melt get rid of the band method.Concrete steps are: (1) is that Ni, Cr, Co, Al and Al-B, Al-Y intermediate alloy raw material more than 99.9% are pulverized and proportioning with purity.(2) above-mentioned batching is placed arc-melting furnace, vacuumize the back induction melting.(3) melted master alloy ingot is pulverized, single roller melt of packing into gets rid of in the quartz ampoule in the carrying device, vacuumizes the back and charges into argon gas.(4) foundry alloy in the eddy-current heating quartz ampoule, treat its over hot melting after, under the argon pressure effect, melt is ejected to high speed copper roller rotating surface continuously from the quartz glass tube nozzle, make superheated melt be higher than 10
5Form amorphous paper tinsel band under the cooldown rate of K/s.
The specific embodiment
Below in conjunction with concrete embodiment a kind of Ni-based amorphous brazing filler metal of the present invention is described further.
Table one: Ni-based amorphous brazing filler metal composition embodiment
The the 1st to the 9th is Ni-based amorphous brazing filler metal embodiment of the present invention in the table 1, and its liquidus temperature all is lower than 1200 ℃, satisfies the needs of nickel base superalloy soldering processes.
Concrete preparation method is as follows:
(1) be that Ni, Cr, Co, Al and Al-B, Al-Y intermediate alloy raw material more than 99.9% are pulverized and a kind of composition of proportioning to the table 1 with purity.Be placed on that induction melting is alloy pig in the vacuum melting furnace.
(2) alloy pig is pulverized, single roller melt of packing into gets rid of in the quartz ampoule in the carrying device, vacuumizes the back and charges into argon gas.Adjust quartz ampoule nozzle and copper roller height.
(3) foundry alloy in the eddy-current heating quartz ampoule, the foundry alloy melt with fusion under the argon pressure effect is ejected to high speed copper roller rotating surface continuously from the quartz glass tube nozzle, make superheated melt be higher than 10
5Forming thickness under the cooldown rate of K/s is the Ni-based amorphous paper tinsel of 30 μ m to 50 μ m band.
Claims (5)
1. Ni-based amorphous brazing filler metal, it consists of Ni
RestCr
aCo
bAl
cB
dY
e15≤a≤20wt% wherein; 7≤b≤12wt%; 3≤c≤5wt%; 2≤d≤3.5wt%; 0.2≤e≤0.4wt%; All the other are nickel.
2. Ni-based amorphous brazing filler metal according to claim 1 is characterized in that, the composition of solder is (wt%): Cr18; Co 10; Al 4; B 3; Y 0.3; Surplus Ni.
3. Ni-based amorphous brazing filler metal according to claim 1 is characterized in that, the composition of solder is (wt%): Cr20; Co 8; Al 4; B 3.5; Y 0.3; Surplus Ni.
4. Ni-based amorphous brazing filler metal according to claim 1 is characterized in that, the composition of solder is (wt%): Cr15; Co 12; Al 4; B 3.5; Y 0.3; Surplus Ni.
5. the paper tinsel band that is prepared from according to each described Ni-based amorphous brazing filler metal composition among the claim 1-4 is characterized in that its thickness 30 μ m≤D≤50 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100370300A CN103240543A (en) | 2012-02-10 | 2012-02-10 | Nickel-based amorphous brazing filler metal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100370300A CN103240543A (en) | 2012-02-10 | 2012-02-10 | Nickel-based amorphous brazing filler metal |
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| CN103240543A true CN103240543A (en) | 2013-08-14 |
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| CN2012100370300A Pending CN103240543A (en) | 2012-02-10 | 2012-02-10 | Nickel-based amorphous brazing filler metal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479037A (en) * | 2016-01-07 | 2016-04-13 | 厦门大学 | Nickel-based boron-free brazing filler metal and manufacturing method thereof |
| CN106112308A (en) * | 2016-07-22 | 2016-11-16 | 中国航空工业集团公司北京航空材料研究院 | A kind of nickel-based solder containing Cr, B, Co, W, Mo, Re, Ta and application thereof |
| CN107405731A (en) * | 2015-03-05 | 2017-11-28 | 日立金属株式会社 | Solder brazing alloy powder and attachment |
| 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 |
| CN109604865A (en) * | 2018-11-16 | 2019-04-12 | 南京理工大学 | For connecting the zirconium base solder of TiAl alloy Yu Ni based high-temperature alloy |
| CN110394522A (en) * | 2019-08-12 | 2019-11-01 | 河北工业大学 | A kind of deformation nickel-base alloy and casting Ni3The soldering processes of Al based alloy |
| CN110900037A (en) * | 2019-12-13 | 2020-03-24 | 安泰天龙钨钼科技有限公司 | Brazing filler metal and method for welding molybdenum-rhenium alloy and steel |
| CN115139010A (en) * | 2022-06-21 | 2022-10-04 | 安徽工程大学 | Preparation method and brazing method of Y-doped multi-element nickel-based alloy brazing filler metal |
| CN115846935A (en) * | 2022-12-19 | 2023-03-28 | 安徽工程大学 | Rare earth Y-doped nickel-based brazing filler metal, preparation method and brazing method thereof |
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| US6331361B1 (en) * | 1998-11-19 | 2001-12-18 | Hickham Industries, Inc. | Methods for manufacture and repair and resulting components with directionally solidified or single crystal materials |
| US20080017694A1 (en) * | 2003-09-24 | 2008-01-24 | Alexander Schnell | Braze Alloy And The Use Of Said Braze Alloy |
| US7363707B2 (en) * | 2004-06-14 | 2008-04-29 | General Electric Company | Braze repair of shroud block seal teeth in a gas turbine engine |
| EP1972408A2 (en) * | 2007-03-22 | 2008-09-24 | United Technologies Corporation | Dual process nickel alloy crack repair |
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Patent Citations (4)
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| US6331361B1 (en) * | 1998-11-19 | 2001-12-18 | Hickham Industries, Inc. | Methods for manufacture and repair and resulting components with directionally solidified or single crystal materials |
| US20080017694A1 (en) * | 2003-09-24 | 2008-01-24 | Alexander Schnell | Braze Alloy And The Use Of Said Braze Alloy |
| US7363707B2 (en) * | 2004-06-14 | 2008-04-29 | General Electric Company | Braze repair of shroud block seal teeth in a gas turbine engine |
| EP1972408A2 (en) * | 2007-03-22 | 2008-09-24 | United Technologies Corporation | Dual process nickel alloy crack repair |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405731A (en) * | 2015-03-05 | 2017-11-28 | 日立金属株式会社 | Solder brazing alloy powder and attachment |
| CN105479037A (en) * | 2016-01-07 | 2016-04-13 | 厦门大学 | Nickel-based boron-free brazing filler metal and manufacturing method thereof |
| CN106112308A (en) * | 2016-07-22 | 2016-11-16 | 中国航空工业集团公司北京航空材料研究院 | A kind of nickel-based solder containing Cr, B, Co, W, Mo, Re, Ta and application thereof |
| 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 |
| CN109604865A (en) * | 2018-11-16 | 2019-04-12 | 南京理工大学 | For connecting the zirconium base solder of TiAl alloy Yu Ni based high-temperature alloy |
| CN109604865B (en) * | 2018-11-16 | 2021-05-04 | 南京理工大学 | Zirconium-based solder for connecting TiAl alloy and Ni-based high-temperature alloy |
| CN110394522A (en) * | 2019-08-12 | 2019-11-01 | 河北工业大学 | A kind of deformation nickel-base alloy and casting Ni3The soldering processes of Al based alloy |
| CN110900037A (en) * | 2019-12-13 | 2020-03-24 | 安泰天龙钨钼科技有限公司 | Brazing filler metal and method for welding molybdenum-rhenium alloy and steel |
| CN115139010A (en) * | 2022-06-21 | 2022-10-04 | 安徽工程大学 | Preparation method and brazing method of Y-doped multi-element nickel-based alloy brazing filler metal |
| CN115846935A (en) * | 2022-12-19 | 2023-03-28 | 安徽工程大学 | Rare earth Y-doped nickel-based brazing filler metal, preparation method and brazing method thereof |
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Application publication date: 20130814 |