CN108161277A - High entropy flux-cored wire for aluminium-steel submerged arc welding and preparation method thereof - Google Patents
High entropy flux-cored wire for aluminium-steel submerged arc welding and preparation method thereof Download PDFInfo
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- CN108161277A CN108161277A CN201810056782.9A CN201810056782A CN108161277A CN 108161277 A CN108161277 A CN 108161277A CN 201810056782 A CN201810056782 A CN 201810056782A CN 108161277 A CN108161277 A CN 108161277A
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- cored wire
- flux
- high entropy
- welding
- aluminium
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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
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
-
- 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
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a kind of high entropy flux-cored wire for aluminum steel submerged arc welding, medicinal powder is prepared by following components by atomic percent, and total percentage is 100%, it be 10% ~ 19%, Co is 18% ~ 25% that wherein Fe, which is 5 ~ 15%, Al, it be 20% ~ 35%, Cu is 5% ~ 13% that Cr, which is 20% ~ 35%, Ni,.Skin material uses industrial high purity copper band.Preparation process includes：First, it melts with master alloy；2nd, using vacuum gas-atomized powder technology, atomized powder is prepared；3rd, high entropy flux-cored wire is made using flux-cored wire forming machine group equipment.Aluminum steel submerged arc welding is carried out using the high entropy flux-cored wire of the present invention, obtains good aluminum steel welding point, the chemical composition of weld metal is in the range of the pivot of high-entropy alloy, realizes the high entropy of weld seam.Weld seam has excellent intensity and toughness, effectively eliminates weld metal zone brittle intermetallic thing phase, comprehensive mechanical performance is good.
Description
Technical field
The invention belongs to welding technology field, specially a kind of high entropy flux-cored wire for aluminium-steel submerged arc welding and
Preparation method.
Background technology
In recent years, due to energy problem and the getting worse of environmental problem, work is manufactured in aircraft, automobile, train, ship etc.
The fields such as industry and the energy, aerospace, national defence propose the light-weighted an urgent demand of product.Aluminium and aluminium alloy are low by its
The excellent performance of density, high intensity plays important role during product is light-weighted.The weight of aluminium-steel composite parts
Amount is equivalent to the 30 ~ 35% of steel, and simultaneously with aluminium and other good characteristics of steel, is improving stock utilization and mitigation
Construction weight improves product corrosion resistance, reduces cost etc. with apparent social effect and economic benefit, has good
Application development prospect.But steel part is substituted using the composite component of aluminium and steel, also the welding of aluminium-steel dissimilar material is carried
Strict requirements are gone out.
The main method for being presently used for aluminium-steel welding dissimilar materials is electric resistance welding, agitating friction weldering, soldering and fusion welding.
Electric resistance welding and agitating friction weldering can preferably control the thickness of two kinds of storeroom brittle layers, be a kind of good aluminium-steel xenogenesis
Material welding method.But electric resistance welding and agitating friction weldering have special requirement, processing efficiency to the shape and thickness of material
It is low, it cannot be widely applied to industrial production；Due to easily forming weld defect, welding quality is not high for soldering, extensively using equally
It is restricted；And fusion welding can not only realize the efficient connection of aluminium-steel dissimilar material, but also with high in machining efficiency, technique
The characteristics of flexible.Especially the most prominent with submerged-arc welding weldering feature, semi-automatic or Full-automatic welding may be used in submerged-arc welding weldering, applies
Range is wide, has the advantages that prominent：1 productivity is high, and mechanical automation degree is high.2 welding qualities are good, and welding performance stablizes 3
Working condition is good, and other than mitigating the labor intensity of manual welding operation, it does not have arc light radiation.But submerged-arc welding can not also be kept away
There are brittle intermetallic layers for the meeting exempted from, and cause joint performance bad, limit being widely used for submerged-arc welding.
Invention content
The present invention organically combines flux-cored wire technology and high-entropy alloy technology, has obtained a kind of high entropy flux-cored wire, mesh
Be to solve in the prior art, during the direct melting welding aluminium-steel of submerged-arc welding wire, easily form weld metal zone brittle intermetallic thing and cause to weld
The problem of strength of joint reduces.Using the present invention high entropy flux-cored wire carry out aluminium-steel submerged arc welding, weld metal chemistry into
In the range of the pivot of high-entropy alloy, the structure organization of commissure tends to single bcc or fcc, realizes the height of weld seam for office
Entropy is easily obtained good aluminium-steel welded joint.
The present invention adopts the following technical scheme that realization：
A kind of high entropy flux-cored wire for aluminium-steel submerged arc welding, including medicinal powder and crust.
Medicinal powder is prepared by following components by atomic percent, and total atomic percent is 100%, wherein Fe 5 ~ 15%, Al
10% ~ 19%, Co 18% ~ 25%, Cr 20% ~ 35%, Ni 20% ~ 35%, Cu 5% ~ 13%；
Skin material uses industrial high purity copper band.
The preparation method of the above-mentioned high entropy flux-cored wire for aluminium-steel submerged arc welding, includes the following steps：
Step 1: configuration master alloy
Formed by atomic percent, total atomic percent is 100%, wherein Fe be 5 ~ 15%, Al be 10% ~ 19%, Co be 18% ~
It is 20% ~ 35%, Cu is 5% ~ 13% that 25%, Cr, which are 20% ~ 35%, Ni,；
Above-mentioned atomic percent is converted into mass percent, various high pure metals have been weighed according to mass percent；It will be upper
Load weighted metal material mixing in the ball mill is stated, it is for use to be compacted into blank；By manufactured blank in vacuum arc furnace ignition into
Row is molten to match, and master alloy is made；
Step 2: using vacuum gas-atomized powder technology, high entropy atomized powder is prepared, powder particle size is controlled in 80 ~ 100 mesh；
Step 3: using flux-cored wire forming machine group equipment, it is prepared into high entropy flux-cored wire.
In the medicinal powder configuration process of the present invention, composition and content restriction reason to each chemical element describe such as respectively
Under：
In order to improve the comprehensive mechanical property of aluminum metal and steel welded joint, the chemical composition of weld metal is needed to be maintained to be formed
In the range of the pivot of high-entropy alloy.For the composition characteristic of base metals Al and Fe to be welded, welding wire selection Al-Co-Cr-Fe-Ni-
Six pivot high-entropy alloys of Cu.Main cause has the following：
1st, the fusing of base material and the dissolving in Jin Feng areas base material to molten bath are inevitable in welding process, are formed for prevention commissure crisp
Property intermetallic compound, must be containing Al and Fe pivots in weld seam target component, and content of both elements in welding wire will
Less than other pivots, additionally, due to high purity copper band being used to wrap up and dissolubility of the copper in commissure is preferable, therefore welding wire Cu contains
Amount should also be maintained at relatively low level.
2nd, Co and Cr and metal Fe and Al have good compatibility, can effectively avoid the production of weld metal zone brittle intermetallic thing
It is raw.
3rd, it by adding in Ni elements in middle layer alloy, not only can be infinitely dissolved with Fe, but also can be with Al, Co, Cr
Etc. dissolving each other, the addition of Ni can improve the compatibility of weld seam and base material, inhibit the generation of intermetallic compound.Using the high entropy medicine
Core welding wire is welded, and weld metal is still high-entropy alloy, realizes the high entropy of weld seam, is effectively eliminated and is changed between brittle metal
Object is closed, strength of welded joint is higher.
The invention has the advantages that the present invention is innovatively by flux-cored wire technology and the organic knot of high-entropy alloy technology
It closes, has obtained a kind of high entropy flux-cored wire, carry out aluminium-steel submerged arc welding using the high entropy flux-cored wire of the present invention, obtain
Good aluminium-steel welded joint, the chemical composition of weld metal are in the range of the pivot of high-entropy alloy, the structure group of commissure
The bcc or fcc for tending to be single are knitted, realizes the high entropy of weld seam.Weld seam has excellent intensity and toughness, effectively eliminates crisp
Property intermetallic compound phase, comprehensive mechanical performance are good.
Reasonable design of the present invention, the high entropy flux-cored wire is easily processed into type, of low cost, the high entropy flux-cored wire operation
It is simple for process, conveniently, efficiently, adaptability it is good, easy to spread, have good market application value.
Description of the drawings
Fig. 1 shows carry out submerged-arc welding weldering signal to Q235b/7075 aluminium alloys using high-entropy alloy welding wire prepared by the present invention
Figure.
Specific embodiment
Specific embodiments of the present invention are described in detail below.
A kind of high entropy flux-cored wire for aluminium-steel submerged arc welding, including medicinal powder and crust.
Medicinal powder is prepared by following components by atomic percent, and total atomic percent is 100%, wherein Fe 5 ~ 15%, Al
10% ~ 19%, Co 18% ~ 25%, Cr 20% ~ 35%, Ni 20% ~ 35%, Cu 5% ~ 13%；
Skin material uses wide 10 ± 0.1mm, the industrial high purity copper band of 0.5 ± 0.03mm of thickness（99.99%）.
The preparation method of above-mentioned high entropy flux-cored wire, implements according to following steps：
It is Step 1: molten with master alloy
It is formed by atomic percent（It is shown in Table one）, total atomic percent is 100%, and atomic percent is converted into quality percentage
Than having weighed various high pure metals according to mass percent（99.99%）；By above-mentioned metal material mixing in the ball mill（Five is public
Jin powder, Ball-milling Time is in 15min or so）, it is for use to be compacted into blank；Manufactured blank in vacuum arc furnace ignition melt and is matched,
Master alloy is made.
Step 2: using vacuum gas-atomized powder technology, after master alloy is melted in induction furnace, refine, the gold of fusing
Belong to liquid to pour into heat preservation crucible, and enter diversion pipe and nozzle, melt flow is atomized by high-pressure gas flow at this time.After atomization
Metal powder, which is fallen into, to be received in powder tank.Carry out the screening of Atomized metal powder according to powder particle size, powder particle size control 80 ~
100 mesh, preferably size range are in 85 ~ 95 mesh.
Step 3: using flux-cored wire forming machine group equipment, diameter phi 1.4mm, φ 1.6mm, φ 2.4mm, φ are prepared
The high entropy flux-cored wire of 3.2mm.
It is noted that adjusting the fusing amount of base material during welding, the dry extension elongation of welding wire is adjusted, to control the fusing of welding wire fast
Degree is composition of weld line control in the active ingredient range for forming high-entropy alloy.By above-mentioned steps one, two, three, it is prepared
The high entropy flux-cored wire of four kinds of different sizes, specific medicinal powder formula such as table one.
The specific medicinal powder formula of high entropy flux-cored wire (atomic percent at%) of table one, four kind of different size
The welding of Q235b/7075 aluminium alloys is carried out using the high entropy flux-cored wire of four kinds of different sizes that the present invention obtains, is implemented
Each pivot content of final alloy is with reference to table two in the weld seam obtained after welding.
Table two implements each pivot content table (atom hundred of weld metal that four kinds of different-diameter model welding wires finally obtain
Point than at%)
As shown in Figure 1, implementing welding using the welding wire that specification is φ 1.4mm, φ is obtained according to constituent content in above-mentioned table one
1.4mm high-entropy alloy welding wires carry out submerged-arc welding weldering to Q235b/7075, and welding current is limited to 119A ~ 154A, and speed of welding is
40 ~ 60min/cm, preheating temperature are maintained at room temperature, obtain the high-entropy alloy composition of weld line that specification in above-mentioned table two is φ 1.4mm,
Weld seam transition region flawless, the tensile strength of Q235b/7075 plumb joints is up to 457 ± 2.MPa, and ballistic work is up to 36 ± 2J.
By the result of implementation of the high entropy flux-cored wire of examples detailed above as it can be seen that using the present invention high entropy flux-cored wire carry out aluminium-
Steel submerged arc welding, obtains good aluminium-steel welded joint, and the chemical composition of weld metal is in the pivot model of high-entropy alloy
In enclosing, the high entropy of weld seam is realized.Weld seam has excellent intensity and toughness, effectively eliminates weld metal zone brittle intermetallic thing
Phase, comprehensive mechanical performance are good.
It should be noted last that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although ginseng
It is described in detail according to the embodiment of the present invention, it will be understood by those of ordinary skill in the art that, to technical scheme of the present invention
It is modified or replaced equivalently, without departure from the spirit and scope of technical scheme of the present invention, should all cover the present invention's
In claims.
Claims (4)
1. a kind of high entropy flux-cored wire for aluminium-steel submerged arc welding, including medicinal powder and crust, it is characterised in that：Medicinal powder by
Following components is prepared by atomic percent, and total atomic percent is 100%, wherein Fe 5 ~ 15%, and Al 10% ~ 19%, Co 18% ~
25%, Cr 20% ~ 35%, Ni 20% ~ 35%, Cu 5% ~ 13%；
Skin material uses industrial high purity copper band.
2. a kind of preparation method of high entropy flux-cored wire for aluminium-steel submerged arc welding, it is characterised in that：Including walking as follows
Suddenly：
Step 1: configuration master alloy：
Formed by atomic percent, total atomic percent is 100%, wherein Fe be 5 ~ 15%, Al be 10% ~ 19%, Co be 18% ~
It is 20% ~ 35%, Cu is 5% ~ 13% that 25%, Cr, which are 20% ~ 35%, Ni,；
Above-mentioned atomic percent is converted into mass percent, various high pure metals have been weighed according to mass percent；It will be upper
Load weighted metal material mixing in the ball mill is stated, it is for use to be compacted into blank；By manufactured blank in vacuum arc furnace ignition into
Row is molten to match, and master alloy is made；
Step 2: using vacuum gas-atomized powder technology, high entropy atomized powder is prepared, powder particle size is controlled in 80 ~ 100 mesh；
Step 3: using flux-cored wire forming machine group equipment, it is prepared into high entropy flux-cored wire.
3. the preparation method of the high entropy flux-cored wire according to claim 2 for aluminium-steel submerged arc welding, feature exist
In：In step 2, powder particle size ranging from 85 ~ 95 mesh.
4. the preparation method of the high entropy flux-cored wire according to claim 2 for aluminium-steel submerged arc welding, feature exist
In：The high entropy flux-cored wire of following four kinds of different sizes is prepared, specific medicinal powder formula is as follows：
（1）, welding wire φ 1.4, medicinal powder formula：Fe 12.6%、Al 16.1%、Co 20.9%、Cr 20.1%、Ni 20.2%、Cu
10.1%；
（2）, welding wire φ 1.6, medicinal powder formula：Fe 12.4%、Al 16.3%、Co 21.2%、Cr 21.4%、Ni 21.5%、Cu
7.2%；
（3）, welding wire φ 2.4, medicinal powder formula：Fe 8.2%、Al 16.9%、Co 23.2%、Cr 22.9%、Ni 22.6%、Cu
6.2%；
（4）, welding wire φ 3.2, medicinal powder formula：Fe 6.0%、Al 17.6%、Co 24.9%、Cr 22.1%、Ni 23.2%、Cu
6.2%。
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| CN201810056782.9A CN108161277B (en) | 2018-01-22 | 2018-01-22 | High-entropy flux-cored wire for aluminum-steel submerged arc welding and preparation method thereof |
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| CN108161277A true CN108161277A (en) | 2018-06-15 |
| CN108161277B CN108161277B (en) | 2020-08-28 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253165A (en) * | 2019-05-21 | 2019-09-20 | 安徽工程大学 | A kind of steel aluminium joint welder |
| CN111085752A (en) * | 2018-10-24 | 2020-05-01 | 叶均蔚 | Welding method using alloy powder as welding filler |
| CN111590204A (en) * | 2020-06-04 | 2020-08-28 | 华东交通大学 | Method for inhibiting generation of brittle intermetallic compounds of weld joint by laser high-entropy powder filling welding |
| CN112222674A (en) * | 2020-09-23 | 2021-01-15 | 中国航发北京航空材料研究院 | High-entropy alloy for brazing TiAl and nickel-based high-temperature alloy and preparation method thereof |
| CN113453838A (en) * | 2019-02-07 | 2021-09-28 | 本田技研工业株式会社 | Multi-material component and method for producing same |
| CN114369786A (en) * | 2022-01-12 | 2022-04-19 | 河南科技大学 | Aluminum-steel composite material and preparation method thereof |
| CN114406469A (en) * | 2022-03-03 | 2022-04-29 | 吉林大学 | Steel-aluminum alloy laser welding method adopting nickel-based high-entropy alloy intermediate layer |
| US11318566B2 (en) | 2016-08-04 | 2022-05-03 | Honda Motor Co., Ltd. | Multi-material component and methods of making thereof |
| US11339817B2 (en) | 2016-08-04 | 2022-05-24 | Honda Motor Co., Ltd. | Multi-material component and methods of making thereof |
| US11511375B2 (en) | 2020-02-24 | 2022-11-29 | Honda Motor Co., Ltd. | Multi component solid solution high-entropy alloys |
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| US11318566B2 (en) | 2016-08-04 | 2022-05-03 | Honda Motor Co., Ltd. | Multi-material component and methods of making thereof |
| US11339817B2 (en) | 2016-08-04 | 2022-05-24 | Honda Motor Co., Ltd. | Multi-material component and methods of making thereof |
| CN111085752A (en) * | 2018-10-24 | 2020-05-01 | 叶均蔚 | Welding method using alloy powder as welding filler |
| CN113453838A (en) * | 2019-02-07 | 2021-09-28 | 本田技研工业株式会社 | Multi-material component and method for producing same |
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| US11511375B2 (en) | 2020-02-24 | 2022-11-29 | Honda Motor Co., Ltd. | Multi component solid solution high-entropy alloys |
| CN111590204A (en) * | 2020-06-04 | 2020-08-28 | 华东交通大学 | Method for inhibiting generation of brittle intermetallic compounds of weld joint by laser high-entropy powder filling welding |
| CN111590204B (en) * | 2020-06-04 | 2022-06-03 | 华东交通大学 | Method for inhibiting generation of brittle intermetallic compounds of weld joint by laser high-entropy powder filling welding |
| CN112222674A (en) * | 2020-09-23 | 2021-01-15 | 中国航发北京航空材料研究院 | High-entropy alloy for brazing TiAl and nickel-based high-temperature alloy and preparation method thereof |
| CN114369786A (en) * | 2022-01-12 | 2022-04-19 | 河南科技大学 | Aluminum-steel composite material and preparation method thereof |
| CN114406469A (en) * | 2022-03-03 | 2022-04-29 | 吉林大学 | Steel-aluminum alloy laser welding method adopting nickel-based high-entropy alloy intermediate layer |
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| CN108161277B (en) | 2020-08-28 |
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