CN117548902A - Nickel-based flux-cored wire and preparation method and application thereof - Google Patents
Nickel-based flux-cored wire and preparation method and application thereof Download PDFInfo
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- CN117548902A CN117548902A CN202311664776.9A CN202311664776A CN117548902A CN 117548902 A CN117548902 A CN 117548902A CN 202311664776 A CN202311664776 A CN 202311664776A CN 117548902 A CN117548902 A CN 117548902A
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000000956 alloy Substances 0.000 claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims description 69
- 238000003756 stirring Methods 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 29
- 238000003466 welding Methods 0.000 claims description 23
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 239000008367 deionised water Substances 0.000 claims description 18
- 229910021641 deionized water Inorganic materials 0.000 claims description 18
- 238000011049 filling Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000005457 ice water Substances 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 229910052706 scandium Inorganic materials 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 7
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 7
- OXYZDRAJMHGSMW-UHFFFAOYSA-N 3-chloropropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCCl OXYZDRAJMHGSMW-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000004108 freeze drying Methods 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- GGHPAKFFUZUEKL-UHFFFAOYSA-M sodium;hexadecyl sulfate Chemical compound [Na+].CCCCCCCCCCCCCCCCOS([O-])(=O)=O GGHPAKFFUZUEKL-UHFFFAOYSA-M 0.000 claims description 6
- 238000003828 vacuum filtration Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000000707 layer-by-layer assembly Methods 0.000 claims description 4
- 239000004482 other powder Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- KIDBBTHHMJOMAU-UHFFFAOYSA-N propan-1-ol;hydrate Chemical compound O.CCCO KIDBBTHHMJOMAU-UHFFFAOYSA-N 0.000 claims description 2
- 229940080236 sodium cetyl sulfate Drugs 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 17
- 230000007797 corrosion Effects 0.000 abstract description 17
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract description 12
- 229910000851 Alloy steel Inorganic materials 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000012467 final product Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000601 superalloy Inorganic materials 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001175 oxide dispersion-strengthened alloy Inorganic materials 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910001119 inconels 625 Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 101000912561 Bos taurus Fibrinogen gamma-B chain Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001309 Ferromolybdenum Inorganic materials 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 229910000628 Ferrovanadium Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- XJNCHICLWKVTQA-UHFFFAOYSA-N [Mo].[W].[Cr].[Ni] Chemical class [Mo].[W].[Cr].[Ni] XJNCHICLWKVTQA-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- VVRQVWSVLMGPRN-UHFFFAOYSA-N oxotungsten Chemical class [W]=O VVRQVWSVLMGPRN-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- -1 rare earth fluoride Chemical class 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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
- B23K35/30—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
- B23K35/304—Ni as the principal constituent with Cr as the next major 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
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-up welding
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
Abstract
The invention discloses a nickel-based flux-cored wire, a preparation method and application thereof, wherein nano tungsten trioxide is introduced into the nickel-based flux-cored wire, so that the high-temperature strength and the heat intensity of a nickel-based alloy are improved, the hardness, the friction performance and the corrosion resistance of the alloy are improved, and the problems of low high-temperature corrosion resistance, low heat intensity and low mechanical property of the nickel-based flux-cored wire are solved.
Description
Domain:
the invention relates to the technical field of welding materials, in particular to a nickel-based flux-cored wire and a preparation method and application thereof
The background technology is as follows:
at present, with the rapid development of aerospace industry, high temperature and severe corrosion environments are caused, so that alloy materials used as high temperature components are required to have better comprehensive properties, and new high temperature alloys with better properties are urgently required to be developed. The nickel-based superalloy has excellent comprehensive mechanical property, oxidation resistance and tissue stability, is widely applied to the industries of ocean, petroleum, chemical industry, nuclear power and the like, and solves the engineering problem that common stainless steel and other metal and nonmetal materials cannot solve. The Inconel625 alloy has excellent high-temperature creep strength, oxidation resistance, corrosion resistance, processability and welding performance, but is easy to generate the phenomenon of mismatch of strength, toughness, plasticity and corrosion resistance when in long-term service under high-temperature, high-pressure and complex corrosion environments, so that the alloy fails in advance without reaching the designed service life, and the use of the alloy is greatly restricted. Therefore, achieving high strength, good plasticity/toughness, and corrosion resistance of Inconel625 alloys has long been a problem to be solved urgently, and in recent years, the addition of oxide particles and ceramic particles to Inconel-series alloys has been a hot issue for nickel-based superalloys.
Patent CN108788516A discloses a nickel-chromium-molybdenum-tungsten series nickel-based flux-cored wire, which comprises a nickel-based alloy steel belt and flux-cored powder filled in the nickel-based alloy steel belt, wherein the flux-cored powder comprises the following components in percentage by mass: 15-20% of metal chromium powder, 27-32% of metal nickel powder, 1.5-3% of metal manganese powder, 10-15% of rutile, 0.5-1.5% of ferrotitanium, 3-6% of feldspar, 2-4% of quartz, 1-2.5% of rare earth fluoride, 1-3% of cryolite, 4-7% of ferrotungsten, 13-16% of ferromolybdenum, 0.4-0.7% of ferrovanadium, 1-3% of calcium fluoride and the balance of iron powder.
Patent CN114083177B discloses a flux-cored wire for surfacing of composite carbide reinforced nickel base alloy, which comprises an outer metal skin and an inner flux-cored core, wherein the flux-cored core comprises the following components in parts by weight: 25-40% of tungsten carbide, 20-35% of titanium carbide, 20-30% of Ni-Cr-B-Si alloy powder, 1-3% of manganese metal and the balance of nickel powder. Nickel is used as a bonding matrix, and tungsten carbide and titanium carbide are used as composite carbides to play a role in strengthening, so that the wear resistance and corrosion resistance of the nickel alloy are improved.
The addition of ferrotungsten and composite carbide ceramic particles can improve the performance of the nickel-based flux-cored wire, but the addition can not effectively change the dislocation of the material, and the high-temperature strength of the alloy is difficult to improve; and the additive is unevenly dispersed in the metal matrix, so that agglomeration phenomenon is easy to occur, and further improvement of the performance of the nickel-based medicinal welding wire is prevented.
The addition of oxide particles to form nickel-based oxide dispersion strengthened (OxideDispersionStrengthened, ODS) alloys has been another hot issue in recent years by adding inert oxide particles (e.g., Y 2 O 3 ) The alloy can prevent dislocation movement by using oxide particles which are uniformly dispersed and distributed at high temperature. Unlike traditional nickel-base superalloy with gamma 'phase as main strengthening phase, the dissolution of the nickel-base superalloy in high Wen Shi' phase can greatly reduce the mechanical performance of the nickel-base superalloy, and the inert nano oxide particles have excellent high temperature stability, so that the high temperature mechanical performance of the nickel-base ODS alloy is greatly improved, and the nickel-base ODS alloy can be widely applied to hot end components of aeroengines and industrial gas turbines. The nano oxide particles in the ODS alloy in recent years have Al 2 O 3 And ThO 2 Etc., wherein Al 2 O 3 The high temperature stability of the particles in the alloy is poor, thO 2 Th in (b) is a radioactive element. There is a need to develop a nickel-based oxide dispersion strengthened alloy nickel-based flux-cored wire with higher performance.
The invention comprises the following steps:
the invention provides a nickel-based flux-cored wire, a preparation method and application thereof, wherein nano tungsten trioxide is introduced into the nickel-based flux-cored wire, so that the high-temperature strength and the heat intensity of a nickel-based alloy are improved, the hardness, the friction performance and the corrosion resistance of the alloy are improved, and the problems of low high-temperature corrosion resistance, low heat intensity and low mechanical property of the nickel-based flux-cored wire are solved.
The invention is realized by the following technical scheme:
the nickel-based flux-cored wire consists of a sheath and powder, wherein the powder filling rate (the filling rate is the ratio of the mass of the powder to the sum of the powder and the mass of the sheath) is 30% -40%, the sheath is an IN625 nickel-based alloy belt, the powder is internally wrapped, and the powder comprises the following components IN percentage by mass as 100%: 21-26% of Cr, 3-5% of Mo, 3-5.5% of Nb, 0.4-1% of Co, 0.5-1% of Zr, 0.5-1% of Si, 0.5-1% of Sc and WO 3 0.2-1%, and the balance of Ni.
The IN625 nickel-based alloy strip comprises the following components IN percentage by mass as 100 percent: 1 to 2 percent of C, 20.0 to 23.0 percent of Cr, 8.0 to 10.0 percent of Mo, less than or equal to 0.40 percent of Al, less than or equal to 0.40 percent of Ti, less than or equal to 5.00 percent of Fe, 3.14 to 4.15 percent of Nb, less than or equal to 0.50 percent of Si, less than or equal to 0.50 percent of Mn, less than or equal to 0.015 percent of S, less than or equal to 0.015 percent of P, less than or equal to 0.070 percent of Cu, and the balance of Ni.
Preferably, the WO in the powder 3 The content is 0.5-0.8%; WO (WO) 3 The purity is more than 99 percent; WO (WO) 3 The particle size of the particles is 480-520nm.
Preferably, the mass ratio of Zr, si and Sc in the powder is 1:1:1, so as to form the combined deoxidizer.
Tungsten trioxide is the most stable of tungsten oxides, is insoluble in water and inorganic acid other than hydrofluoric acid, and has strong corrosion resistance. WO during the temperature increase 3 The lattice structure of (C) is changed, and three crystal structures of monoclinic system (17-330 ℃), orthorhombic system (330-740 ℃) and tetragonal system (more than or equal to 740 ℃) appear, so that the volume is changed, lattice distortion is generated, and sintering densification is promoted. At the same time, WO at 1000℃high temperature 3 Can be reduced to C by C. WO (WO) 3 And C at a temperature at which the following reaction occurs:
WO 3 +3C＝3W+3CO (1)
2WO 3 +3C＝2W+3CO 2 (2)
WO 3 +3CO＝W+3CO 2 (3)
CO 2 +C＝2CO (4)
the initial stage of the reaction is solid phase reaction, WO closely contacted with each other 3 Reduced by carbon to form small amounts of CO or CO 2 At this time, the reduction process is subject to the C-direction WO 3 The rate of surface diffusion is limited. At temperatures above 1000 ℃, the carbon oxides can only exist in the form of CO, so that at certain concentrations of CO and CO 2 After that, the reduction reaction is converted into a gas-solid reaction, so that the reduction process is remarkably accelerated.
Therefore, the nano tungsten trioxide is introduced into the nickel-based flux-cored wire, so that the high temperature corrosion resistance of the nickel-based alloy can be improved, meanwhile, the introduction of the nano tungsten trioxide can also generate reduction reaction with C of the alloy to generate W element favorable for the alloy, further, the hardness and friction performance of the alloy are improved, and expensive tungsten powder is avoided.
The preparation method of the medicinal powder comprises the following steps: nanometer WO (WO) by adopting electrostatic self-assembly process 3 Uniformly dispersing the powder in atomized nickel powder to obtain alloy powder; the alloy powder is then mixed with a joint deoxidizer consisting of Zr, si and Sc to form a flux-cored powder.
The method specifically comprises the following steps:
1) Adding atomized nickel powder with the particle size of 150-200 mu m into a mixed solution of deionized water and n-propanol, stirring, adding 4-5wt% of 3-chloropropyl trimethoxysilane, continuously stirring for l-2h, and performing vacuum filtration to obtain atomized nickel powder with positive charges on the surface;
2) WO under ice water bath condition 3 Adding the powder into a mixed solution of deionized water and methanol with a mass ratio of 1:l, stirring, adding 4-5wt% of sodium cetyl sulfate, and continuously stirring for 1-2h to obtain WO with negative charges on the surface 3 A suspension;
3) Slowly adding the atomized nickel powder with positive charges on the surface obtained in the step 1) into the WO with negative charges on the surface obtained in the step 2) under the conditions of ice water bath and ultrasonic stirring 3 Continuously stirring the suspension for 0.5-1h, and vacuum filtering and freeze drying to obtain WO dispersed in the atomized nickel powder 3 ；
4) Dispersing Zr, si and Sc and WO obtained in step 3) in atomized nickel powder 3 Sieving with 60 mesh sieve, and mixing with other powder in V-type powder mixer for 30min to obtain homogeneously mixed powder.
In the step 1), the volume ratio of deionized water to n-propanol water is (1-3): 5, preferably 1.5:5.
the invention also provides a preparation method of the nickel-based flux-cored wire, which comprises the following steps: filling the powder obtained by the preparation method of the powder IN an IN625 nickel-based alloy belt to obtain a nickel-based flux-cored wire, which comprises the following steps: rolling the nickel-based alloy strip into a U-shaped groove after ultrasonic cleaning, filling medicinal powder into the U-shaped groove, closing the U-shaped groove, and performing rolling forming and continuous drawing reducing treatment on the U-shaped groove to prepare a welding wire; and mechanically cleaning the surface of the welding wire to obtain the flux-cored wire.
The invention also protects the application of the nickel-based flux-cored wire for surfacing, preferably plasma arc welding, and the technological parameters are as follows; voltage: 20-24V; current flow: 100-120A; wire feed speed: 7.5m/min; gas flow rate: 18-20L/min; length of wire extending out of contact tip: 10-12mm.
Preferably, the nickel-based flux-cored wire is applied to build-up welding of the wall of the garbage incinerator.
The beneficial effects of the invention are as follows:
(1) Nanometer WO 3 Introducing nickel base alloy to raise high temperature strength of alloy and nanometer WO 3 The particles play a role in pinning to block dislocation movement, so that the dispersion strengthening effect is achieved. At high temperatures, dislocations climb over the nano WO 3 The particles need to consume more energy and the nano WO 3 The action of the particles and the stress field of the matrix has an attractive effect on the dislocation, which leads to the dislocation leaving the nano WO 3 The particles require higher shear stress, thereby improving the high temperature strength of the alloy.
(2)WO 3 The introduction of the alloy improves the heat resistance, hardness and friction performance of the alloy. WO (WO) 3 W can form solid solution with the alloy matrix, so that the matrix generates lattice distortion to block dislocation movement; w can enter a gamma' phase, so that the heat resistance of the alloy can be effectively improved; the introduction of W also improves the hardness and friction properties of the alloy.
(3)WO 3 The introduction of the alloy improves the corrosion resistance of the alloy. WO (WO) 3 The corrosion resistance of the alloy is improved to a certain extent by introducing the alloy into the nickel-based alloy. And during the welding process, WO 3 The lattice structure of the alloy is changed to generate three crystal structures of monoclinic system (17-330 ℃), orthorhombic system (330-740 ℃) and tetragonal system (more than or equal to 740 ℃), so that the volume is changed, and the lattice distortion is generated, thereby promoting sintering densification and being more corrosion-resistant.
(4) The invention adopts an electrostatic self-assembly process to lead the nanometer WO 3 Uniformly dispersed in the atomized nickel powder, effectively avoiding particlesIs agglomerated to give full play to nano WO 3 Is effective in solving the problem of WO 3 The wettability and interface binding force between the reinforcement and the nickel matrix are insufficient.
In a word, the invention introduces nano tungsten trioxide into the nickel-based flux-cored wire, improves the high temperature strength and the heat intensity of the nickel-based alloy, simultaneously improves the hardness, the friction performance and the corrosion resistance of the alloy, solves the problems of low high temperature corrosion resistance, low heat intensity and low mechanical property of the nickel-based flux-cored wire, avoids using expensive tungsten powder, and combines the adoption of an electrostatic self-assembly process to lead the nano WO 3 Uniformly dispersed in the atomized nickel powder, effectively avoids agglomeration among particles and fully plays a role of nano WO 3 Is effective in solving the problem of WO 3 The wettability and interface binding force between the reinforcement and the nickel matrix are insufficient.
Drawings
FIG. 1 is a schematic illustration of the addition of 0.5% wt of nano WO in example 2 3 Is a microstructure graph of the flux-cored wire after additive manufacturing.
The specific embodiment is as follows:
in order to make the objects, technical solutions and advantageous technical effects of the present invention clearer, the present invention will be further described in detail with reference to examples. It should be understood that the embodiments described in this specification are only for explaining the present invention, and are not intended to limit the present invention, and parameters, proportions, etc. of the embodiments may be selected according to the circumstances without materially affecting the results.
The test materials used in the examples described below, unless otherwise specified, are commercially available from conventional sources.
Example 1:
the nickel-based flux-cored wire consists of a sheath and medicinal powder, wherein the sheath is an IN625 nickel-based alloy steel belt with the thickness of 0.6mm and the width of 12mm, and the total mass percent of the medicinal powder is 100 percent, and the medicinal powder comprises the following components IN percentage by mass: cr22.0%, mo3.5%, nb3%, co0.50%, si0.50%, zr0.50%, sc0.50%, WO 3 1% Ni and the balance. The filling rate of the powder is 30%, WO 3 Particle size of 500nm, WO 3 The purity is more than 99 percent.
The preparation and application specific steps of the flux-cored wire in the embodiment are as follows:
1. preparation of welding wire
(1) Firstly, 500g of atomized nickel powder with the particle size of 200 mu m is added into 10L of mixed solution of deionized water and n-propanol (the volume ratio of the deionized water to the n-propanol is 1.5:5), after 30min stirring, 60ml of 3-chloropropyl trimethoxysilane is added, and vacuum filtration is carried out after continuous stirring for lh, so that the atomized nickel powder with positive charges on the surface is obtained. Under ice water bath conditions (10 ℃ C.), 7.3. 7.3gWO was added 3 Adding into a mixed solution of 1L deionized water and 1:l of methanol in mass ratio, stirring for 30min, adding 4g of sodium hexadecyl sulfate, and stirring for 1 hr to obtain WO with negative charges on the surface 3 A suspension. Slowly adding the atomized nickel powder with positive charges on the surface into WO with negative charges on the surface under the conditions of ice water bath and ultrasonic stirring 3 Stirring for 30min, vacuum filtering, and freeze drying to obtain WO dispersed in atomized nickel powder 3 ；
(2) Dispersing Zr, si and Sc and WO in atomized nickel powder prepared in step (1) 3 Sieving with 60 mesh sieve, and mixing with other powders at a certain ratio for 30min to obtain uniformly mixed powder;
(3) And rolling and deforming the nickel-base alloy steel strip subjected to ultrasonic cleaning on a forming machine, and adding the prepared flux-cored powder according to the filling rate of 30% after preparing a U-shaped groove. And after the U-shaped groove is closed, rolling, rough drawing and finish drawing are carried out for a plurality of times, and the O-shaped seamed flux-cored wire with the diameter of 1.2mm is obtained. And finally, mechanically cleaning the surface of the welding wire to obtain the final product of the flux-cored wire.
2. Plasma arc equipment is adopted to carry out plasma fuse surfacing on the wall surface of the waste incineration furnace tube, and the adopted technological parameters are as follows; voltage: 20V; current flow: 100A; wire feed speed: 7.5m/min; gas flow rate: 18L/min; length of wire extending out of contact tip: 10mm.
Example 2
The nickel-based flux-cored wire comprises a sheath and medicinal powder, wherein the sheath isThe IN625 nickel-based alloy steel band with the thickness of 0.6mm and the width of 12mm comprises the following components IN percentage by mass as 100% of the total mass: 23.0% of Cr, 4% of Mo, 4.5% of Nb, 0.8% of Co, 0.50% of Si, 0.50% of Zr, 0.50% of Sc and WO 3 0.8% and the balance Ni. The filling rate of the powder is 30%, WO 3 Particle size of 500nm, WO 3 The purity is more than 99 percent.
The preparation and application method of the flux-cored wire comprises the following specific steps:
1. preparation of welding wire
(1) Firstly, 500g of atomized nickel powder with the particle size of 200 mu m is added into 10L of mixed solution of deionized water and n-propanol (the volume ratio of the deionized water to the n-propanol is 1.5:5), after 30min stirring, 60ml of 3-chloropropyl trimethoxysilane is added, and vacuum filtration is carried out after continuous stirring for lh, so that the atomized nickel powder with positive charges on the surface is obtained. Under ice water bath conditions (10 ℃ C.), 5.84. 5.84gWO was added 3 Adding into a mixed solution of 1L deionized water and 1:l of methanol in mass ratio, stirring for 30min, adding 4g of sodium hexadecyl sulfate, and stirring for 1 hr to obtain WO with negative charges on the surface 3 A suspension. Slowly adding the atomized nickel powder with positive charges on the surface into WO with negative charges on the surface under the conditions of ice water bath and ultrasonic stirring 3 Stirring for 30min, vacuum filtering, and freeze drying to obtain WO dispersed in atomized nickel powder 3 ；
(2) Combining deoxidizing agent composed of Zr, si and Sc and WO dispersed in atomized nickel powder prepared in step (1) 3 Sieving with 60 mesh sieve, and mixing with other powders at a certain ratio for 30min to obtain uniformly mixed powder core;
(3) And rolling and deforming the nickel-base alloy steel strip subjected to ultrasonic cleaning on a forming machine, and adding the prepared flux-cored powder according to the filling rate of 30% after preparing a U-shaped groove. And after the U-shaped groove is closed, rolling, rough drawing and finish drawing are carried out for a plurality of times, and the O-shaped seamed flux-cored wire with the diameter of 1.2mm is obtained. And finally, mechanically cleaning the surface of the welding wire to obtain the final product of the flux-cored wire.
2. The resulting flux-cored wire was prepared into a weld overlay as described in example 1.
Example 3
The nickel-based flux-cored wire consists of a sheath and medicinal powder, wherein the sheath is an IN625 nickel-based alloy steel belt with the thickness of 0.6mm and the width of 12mm, and the total mass percent of the medicinal powder is 100 percent, and the medicinal powder comprises the following components IN percentage by mass: 24.5% of Cr, 4.5% of Mo, 5% of Nb, 0.40% of Co, 0.50% of Si, 0.50% of Zr, 0.50% of Sc and WO 3 0.5% Ni and the balance. The filling rate of the powder is 30%, WO 3 Particle size of 500nm, WO 3 The purity is more than 99 percent.
The preparation and application method of the flux-cored wire comprises the following specific steps:
1. preparation of welding wire
(1) Firstly, 500g of atomized nickel powder with the particle size of 200 mu m is added into 10L of mixed solution of deionized water and n-propanol (the volume ratio of the deionized water to the n-propanol is 1.5:5), after 30min stirring, 60ml of 3-chloropropyl trimethoxysilane is added, and vacuum filtration is carried out after continuous stirring for lh, so that the atomized nickel powder with positive charges on the surface is obtained. Under ice water bath conditions (10 ℃ C.), 3.65. 3.65gWO was added 3 Adding into a mixed solution of 1L deionized water and 1:l of methanol in mass ratio, stirring for 30min, adding 4g of sodium hexadecyl sulfate, and stirring for 1 hr to obtain WO with negative charges on the surface 3 A suspension. Slowly adding the atomized nickel powder with positive charges on the surface into WO with negative charges on the surface under the conditions of ice water bath and ultrasonic stirring 3 Stirring for 30min, vacuum filtering, and freeze drying to obtain WO dispersed in atomized nickel powder 3 ；
(2) Combining deoxidizing agent composed of Zr, si and Sc and WO dispersed in atomized nickel powder prepared in step (1) 3 Sieving with 60 mesh sieve, and mixing with other powder for 30min to obtain uniformly mixed powder;
(3) And rolling and deforming the nickel-base alloy steel strip subjected to ultrasonic cleaning on a forming machine, and adding the prepared flux-cored powder according to the filling rate of 30% after preparing a U-shaped groove. And after the U-shaped groove is closed, rolling, rough drawing and finish drawing are carried out for a plurality of times, and the O-shaped seamed flux-cored wire with the diameter of 1.2mm is obtained. And finally, mechanically cleaning the surface of the welding wire to obtain the final product of the flux-cored wire.
2. The resulting flux-cored wire was prepared into a weld overlay as described in example 1.
Example 4
The nickel-based flux-cored wire consists of a sheath and medicinal powder, wherein the sheath is an IN625 nickel-based alloy steel belt with the thickness of 0.6mm and the width of 12mm, and the total mass percent of the medicinal powder is 100 percent, and the medicinal powder comprises the following components IN percentage by mass: cr25%, mo5.0%, nb5.5%, co0.60%, si0.50%, zr0.50%, sc0.50%, WO 3 0.3% Ni and the balance. The filling rate of the powder is 30%, WO 3 Particle size of 500nm, WO 3 The purity is more than 99 percent.
The preparation and application method of the flux-cored wire comprises the following specific steps:
1. preparation of welding wire
(1) Firstly, 500g of atomized nickel powder with the particle size of 200 mu m is added into 10L of mixed solution of deionized water and n-propanol (the volume ratio of the deionized water to the n-propanol is 1.5:5), after 30min stirring, 60ml of 3-chloropropyl trimethoxysilane is added, and vacuum filtration is carried out after continuous stirring for lh, so that the atomized nickel powder with positive charges on the surface is obtained. Under ice water bath conditions (10 ℃ C.), 2.19. 2.19gWO was added 3 Adding into a mixed solution of 1L deionized water and 1:l of methanol in mass ratio, stirring for 30min, adding 4g of sodium hexadecyl sulfate, and stirring for 1 hr to obtain WO with negative charges on the surface 3 A suspension. Slowly adding the atomized nickel powder with positive charges on the surface into WO with negative charges on the surface under the conditions of ice water bath and ultrasonic stirring 3 Stirring for 30min, vacuum filtering, and freeze drying to obtain WO dispersed in atomized nickel powder 3 ；
(2) Combining deoxidizing agent composed of Zr, si and Sc and WO dispersed in atomized nickel powder prepared in step (1) 3 Sieving with 60 mesh sieve, and mixing with other powder for 30min to obtain uniformly mixed powder;
(3) And rolling and deforming the nickel-base alloy steel strip subjected to ultrasonic cleaning on a forming machine, and adding the prepared flux-cored powder according to the filling rate of 30% after preparing a U-shaped groove. And after the U-shaped groove is closed, rolling, rough drawing and finish drawing are carried out for a plurality of times, and the O-shaped seamed flux-cored wire with the diameter of 1.2mm is obtained. And finally, mechanically cleaning the surface of the welding wire to obtain the final product of the flux-cored wire.
2. The resulting flux-cored wire was prepared into a weld overlay as described in example 1.
Comparative example 1:
reference example 1 differs in that the core powder does not contain WO 3 The other preparation processes are the same.
The total mass percent is 100%, and the components and mass percent of the powder are as follows: cr22.0%, mo3.5%, nb3%, co0.5%, si0.50%, zr0.50%, sc0.50%, and Ni the balance. The filling rate of the powder is 30%.
The preparation and application method of the flux-cored wire of comparative example 1 comprises the following specific steps:
(1) Sieving a combined deoxidizer composed of Zr, si and Sc and 500g of atomized nickel powder with the particle size of 200 mu m by a 60-mesh sieve respectively, and then putting other selected various powders into a V-shaped powder mixer to mix for 30min to obtain uniformly mixed flux-cored powder;
(2) And rolling and deforming the nickel-base alloy steel strip subjected to ultrasonic cleaning on a forming machine, and adding the prepared flux-cored powder according to the required filling rate after preparing a U-shaped groove. And after the U-shaped groove is closed, rolling, rough drawing and finish drawing are carried out for a plurality of times, and the O-shaped seamed flux-cored wire with the diameter of 1.2mm is obtained. Finally, mechanically cleaning the surface of the welding wire to obtain a final product of the flux-cored wire;
(3) The resulting flux-cored wire was prepared into a weld overlay as described in example 1.
Comparative example 2:
reference example 1 differs in that WO in the drug core powder 3 The preparation process is the same as the other preparation processes.
The total mass percent is 100%, and the components and mass percent of the powder are as follows: cr22.0%, mo3.5%, nb3%, co0.5%, si0.50%, zr0.50%, sc0.50%, and Ni the balance. The filling rate of the powder is 30%.
The performances of the above-mentioned overlay welding samples obtained in examples 1 to 4 and comparative examples 1 to 2 were tested by referring to GB/T39254-2020 general rules for evaluation of mechanical properties of additive manufactured Metal articles. The friction and wear test is carried out by adopting a UMT-3 friction and wear tester at room temperature and 600 ℃ respectively, and the test conditions are as follows: the loading load is 10kg, the wearing time is 30min, the wearing frequency is 10Hz, and the counter-grinding material is Si 3 N 4 A ball. The samples were weighed and the weight of the balls was calculated before the abrasion test, and the results are shown in Table 1:
TABLE 1 results of test of friction and wear properties of weld overlays after weld overlays of flux-cored wires of examples 1-4 and comparative examples 1-2
The performances of the above-mentioned overlay welding samples obtained in examples 1 to 4 and comparative examples 1 to 2 were subjected to a high-temperature oxidation test, and the high-temperature oxidation test was conducted with reference to national standard (GB/T13303-91). The high-temperature oxidation test is carried out in a high-temperature muffle furnace without protective atmosphere, the test temperature is 1000 ℃, and the test steps are as follows: the corundum crucible containing the test sample is placed in a muffle furnace to be heated, the heating speed is 10 ℃/min, the temperature is kept for 10min after reaching 990 ℃, then the temperature is increased to 1000 ℃ at 2 ℃/min, after the heat preservation time of 1, 5, 10, 25, 50, 75, 100 and 150 (h) respectively, the sample is taken out, cooled, weighed (total weight of crucible and sample/crucible mass after taking out the sample) and recorded, and then the sample is placed back in the muffle furnace to be oxidized continuously, and the cycle is performed until all the oxidation cycles are completed. Weight change in high temperature oxidation experiments, results are shown in table 2:
TABLE 2 results of high temperature Oxidation Performance test of weld overlays after flux-cored wires of examples 1-4 and comparative examples 1-2 were bead-deposited
| Sample of | 1h | 5h | 10h | 25h | 50h | 75h | 100h | 150h |
| Example 1 | 0.611 | 0.997 | 1.255 | 1.802 | 3.025 | 4.023 | 5.471 | 7.209 |
| Example 2 | 0.499 | 0.932 | 1.265 | 1.732 | 2.431 | 3.497 | 4.263 | 5.696 |
| Example 3 | 0.499 | 0.932 | 1.265 | 1.732 | 2.431 | 3.497 | 4.263 | 5.696 |
| Example 4 | 0.227 | 1.097 | 1.590 | 2.46 | 3.104 | 4.467 | 6.435 | 8.782 |
| Comparative example 1 | 0.812 | 2.468 | 4.454 | 9.240 | 13.996 | 17.878 | 20.979 | 25.494 |
| Comparative example 2 | 0.430 | 0.857 | 1.399 | 1.973 | 2.547 | 4.464 | 6.463 | 8.078 |
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The nickel-based flux-cored wire is characterized by comprising a sheath and powder, wherein the powder filling rate is 30% -40%, the sheath is an IN625 nickel-based alloy belt, the powder is internally wrapped, and the powder comprises the following components IN percentage by mass as 100%: 21-26% of Cr, 3-5% of Mo, 3-5.5% of Nb, 0.4-1% of Co, 0.5-1% of Zr, 0.5-1% of Si, 0.5-1% of Sc and WO 3 0.2-1%, and the balance of Ni.
2. The nickel-based flux-cored wire of claim 1 wherein WO in the powder 3 The content is 0.5-0.8%; WO (WO) 3 The purity is more than 99 percent; WO (WO) 3 The particle size of the particles is 480-520nm.
3. The nickel-based flux-cored wire of claim 1, wherein the mass ratio of Zr, si and Sc in the powder is 1:1:1.
4. The method for producing a nickel-based flux-cored wire of claim 1, wherein the powder comprisesThe preparation method of the (C) comprises the following steps: nanometer WO (WO) by adopting electrostatic self-assembly process 3 Uniformly dispersing the powder in atomized nickel powder to obtain alloy powder; the alloy powder is then mixed with a joint deoxidizer consisting of Zr, si and Sc to form a flux-cored powder.
5. The method for preparing the nickel-based flux-cored wire of claim 1, wherein the method for preparing the powder comprises the following steps:
1) Adding atomized nickel powder with the particle size of 150-200 mu m into a mixed solution of deionized water and n-propanol, stirring, adding 4-5wt% of 3-chloropropyl trimethoxysilane, continuously stirring for l-2h, and performing vacuum filtration to obtain atomized nickel powder with positive charges on the surface;
2) WO under ice water bath condition 3 Adding the powder into a mixed solution of deionized water and methanol with a mass ratio of 1:l, stirring, adding 4-5wt% of sodium cetyl sulfate, and continuously stirring for 1-2h to obtain WO with negative charges on the surface 3 A suspension;
3) Slowly adding the atomized nickel powder with positive charges on the surface obtained in the step 1) into the WO with negative charges on the surface obtained in the step 2) under the conditions of ice water bath and ultrasonic stirring 3 Continuously stirring the suspension for 0.5-1h, and vacuum filtering and freeze drying to obtain WO dispersed in the atomized nickel powder 3 ；
4) Dispersing Zr, si and Sc and WO obtained in step 3) in atomized nickel powder 3 Sieving with 60 mesh sieve, and mixing with other powder in V-type powder mixer for 30min to obtain homogeneously mixed powder.
6. The method according to claim 5, wherein the volume ratio of deionized water to n-propanol water in step 1) is (1-3): 5.
7. the preparation method of the nickel-based flux-cored wire is characterized by comprising the following steps of: filling the powder obtained by the preparation method of the powder IN claim 1 IN an IN625 nickel-based alloy strip to obtain the nickel-based flux-cored wire.
8. The preparation method according to claim 7, comprising the following steps: rolling the nickel-based alloy strip into a U-shaped groove after ultrasonic cleaning, filling the powder obtained by the preparation method of the powder in claim 1 into the U-shaped groove, and performing rolling forming and continuous drawing reducing treatment on the U-shaped groove after closing the U-shaped groove to prepare a welding wire; and mechanically cleaning the surface of the welding wire to obtain the flux-cored wire.
9. The use of the nickel-based flux-cored wire of claim 1 for overlaying welding, wherein plasma arc welding is adopted, and the technological parameters are as follows: voltage: 20-24V; current flow: 100-120A; wire feed speed: 7.5m/min; gas flow rate: 18-20L/min; length of wire extending out of contact tip: 10-12mm.
10. The use according to claim 9, characterized by being applied to the surfacing of the walls of a waste incinerator.
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