CN107009048B - A kind of Fe-based amorphous welding material of Twin wire arc built-up welding - Google Patents
A kind of Fe-based amorphous welding material of Twin wire arc built-up welding Download PDFInfo
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- CN107009048B CN107009048B CN201710268785.4A CN201710268785A CN107009048B CN 107009048 B CN107009048 B CN 107009048B CN 201710268785 A CN201710268785 A CN 201710268785A CN 107009048 B CN107009048 B CN 107009048B
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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
- B23K35/3053—Fe as the principal constituent
- B23K35/306—Fe as the principal constituent with C as next major constituent, e.g. cast iron
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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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a kind of Fe-based amorphous welding material of Twin wire arc built-up welding, Fe-based amorphous welding material ingredient is Fe-Cr-Mo-C-B-Y-Ni, atomic formula are as follows: FeaCrbMocCdBeYfNig, wherein a=100-b-c-d-e-f-g, 11≤b≤14.5,9≤c≤14,9≤d≤18,5≤e≤8,1.5≤f≤2.5,5≤g≤7.Material characteristics of the present invention are: packaging material are done by 304L stainless steel (main component element is Fe:70.1%, Cr:19.3%, Ni:10.6%), for wrapping up Mo powder, C powder, FeB powder and Rare Earth Y powder core material.Thickness can be prepared up to grade, nearly 100% amorphous state, corrosion-resistant and excellent wear-resisting property overlay cladding using Twin wire arc bead-welding technology.
Description
Technical field
The present invention relates to a kind of designs of Fe-based amorphous welding material of Twin wire arc built-up welding, particularly belong to welding material skill
Art field.
Background technique
Metallic material product in use will be by various forms of direct or indirect damages, one of the most common
Damage type is abrasion and corrosion.It not only causes economic loss, some even cause catastrophic accident.Modern industry
In, expand a large amount of research aiming at the problem that galling and corrosion, how to obtain the metal material of wear and corrosion behavior at
For one of the emphasis direction studied at present.The excellent wear-corrosion resistance of Fe-based amorphous alloy, makes it in military project, aviation and stone
The fields such as change are widely applied.Thermal spraying and technique for overlaying are with easy to operate, deposition area is big, high-efficient, excellent surface quality
The advantages that.The combination of the performance advantage and plasma spray technology of Fe-based amorphous alloy wear-and corrosion-resistant has important in Surface Engineering
Meaning.Currently, the researcher there are many expands unremitting effort and research to this aspect.Such as Beijing University of Technology
Lu Lanzhi, He Dingyong et al. do outer suitcase powder with 304L and 430 stainless steels and are rolled into silk material, are prepared by electric arc spraying
FeCrMoCBSi system and low-alloy amount iron base amorphous alloy coatings, content of amorphous reach as high as 70.2%；For another example Hohai University
WenminGuo, Zhang et al. also do crust with 304L stainless steel, by High Speed Electric Arc Spraying, have prepared almost amorphous
The FeCrMoCBNiNbAl system iron-based amorphous coating of state structure, porosity only have 2%.However only by thermal spraying, due to it
Technical characteristic can't prepare thickness up to the other high amorphous content coating of grade, and the reparation of part is also met not
Many necessary applications, meanwhile, porosity is also an inevitable problem in plasma spray technology, however built-up welding
Prepared protective layer on thickness and porosity on be intended to it is more considerable than the effect of thermal spraying.
Technique for overlaying is a branch of welding field, and built-up welding is not configured to union piece, but with the method for welding,
One or more layers technical process with certain performance materials of the surface overlaying of part.Its object is to repair part or increase by zero
The performance of part surface abrasion resistance, heat-resisting, anti-corrosion etc..Wang Bin, Zhou Cui of Southwest Petrol University et al. pass through monofilament technique for overlaying
The Fe prepared41Co7Cr15Mo14C15B6Y2Iron-based amorphous nanometer crystalline composite overlaying layer, content of amorphous can reach
47.44%.It is well known that amorphous content is higher with compared with constituent element crystal alloy, a series of property such as wear-resisting and corrosion-resistant
It can be intended to greatly promote several orders of magnitude.Therefore, the wlding for making every effort to obtain high content of amorphous is also very necessary.Guarantee heap
Layer amorphous content with higher itself will not only be groped on wlding ingredient, also overlay cladding be required to have as far as possible
Low dilution rate.Mariages technique for overlaying is compared with traditional monofilament technique for overlaying, the heap due to its two root wire difference receiving electrode
Welding base material, receiving electrode, maximum feature are not exactly to greatly reduce the dilution rate of overlay cladding, thus more improve overlay cladding
Purity, while improving built-up welding efficiency.
Make the alloy that high amorphous content is formed in overlay cladding be it is relatively difficult, main cause be inside layer with
It is metallurgically combined between substrate, for the substrate of fusion welding material and fusion area, needs biggish heat input, in this way
The temperature of welding substrate is improved, cooling velocity is relatively low, and can cooling rate be to pass for form amorphous alloy
An important factor, which results in the difficulty increasings for obtaining higher amorphous content alloy.Possess high glass forming ability,
And required cooling rate is very low (only needs 102~103 K·s-1) Fe-based amorphous ingredient Fe41Co7Cr15Mo14C15B6Y2, and have
Excellent corrosion-proof wear performance, the application in terms of resurfacing welding material is a splendid selection.When the ingredient is used for monofilament built-up welding
When, the amorphous content of layer can reach 47.44%, can be significantly in the case where lower dilution rate if be used for mariages built-up welding
Improve the amorphous content of layer.However the Fe-based amorphous group metamember is but difficult to the ingredient with the flux cored wire of mariages built-up welding
It is fitted into well.Therefore, present component (FeaCrbMocCdBeYfNig, wherein a=100-b-c-d-e-f-g, 11≤b≤
14.5,9≤c≤14,9≤d≤18,5≤e≤8,1.5≤f≤2.5,5≤g≤7) well solve this problem, welding wire
Packaging material 304L stainless steel mainly contains Fe, Cr, Ni element, and powder core is Mo powder, C powder, FeB powder, Y powder.
Summary of the invention
The present invention is intended to provide a kind of Fe-based amorphous welding ingredient of Twin wire arc built-up welding, utilizes Twin wire arc heap welder
Skill can prepare thickness up to millimetre-sized, nearly 100% amorphous, corrosion-resistant and overlay cladding that wear-resisting property is excellent.
A kind of atomic component of the Fe-based amorphous welding material of Twin wire arc built-up welding of the present invention are as follows:
FeaCrbMocCdBeYfNig, wherein a=100-b-c-d-e-f-g, 11≤b≤14.5,9≤c≤14,9≤d≤18,5≤e≤
8,1.5≤f≤2.5,5≤g≤7；Fe-based amorphous welding material is specifically made of 304L stainless steel packaging material and core material, and core material includes
The particle size range of Mo powder, C powder, FeB powder and Rare Earth Y powder, core material is controlled in 250 ~ 380 mesh.
The 304L stainless steel packaging material with a thickness of 0.30mm, the gage of wire after wrapping up core material is 2.0 ~ 3.0mm.
The welding condition of the Twin wire arc built-up welding are as follows: 6 ~ 8m/min of wire feed rate, 30 ± 2V of voltage, electric current 300 ±
20A。
Beneficial effects of the present invention:
The present invention is not needed by welding material composition selection by Fe-based amorphous ingredient Fe41Co7Cr15Mo14C15B6Y2In advance
Then preparation carries out built-up welding for amorphous bar as medicine core.Directly welding powder can be made in raw material by welding material of the present invention
Core-wire material can prepare amorphous content close to 100% overlay cladding, directly by the low feature of Twin wire arc technique for overlaying dilution rate
Connecing property, farthest reduce the excellent properties of iron-base block amorphous alloy, improve the built-up welding prepared under arc surfacing
The not high enough problem of layer amorphous content, so that layer can be served in more severe actual application environment.Using double
Silk arc surfacing technique can prepare thickness up to grade, nearly 100% amorphous state, corrosion-resistant and excellent wear-resisting property overlay cladding.
Detailed description of the invention
Fig. 1: the X-ray diffractogram of the Fe-based amorphous simulation overlay cladding of the present invention；
Fig. 2: the heating DSC curve of the middle Fe-based amorphous simulation overlay cladding of invention；
Fig. 3: the friction coefficient curve of the Fe-based amorphous simulation overlay cladding of the present invention；
Fig. 4: wear profile of the Fe-based amorphous simulation overlay cladding of the present invention in wear test；
Fig. 5: dynamic potential polarization curve of the Fe-based amorphous simulation overlay cladding of the present invention in 3.5% NaCl；
Fig. 6: dynamic potential polarization curve of the Fe-based amorphous simulation overlay cladding of the present invention under the HCl solution of 1mol/L.
Specific embodiment
Embodiment 1
In the present embodiment, the atomic formula of Fe-based amorphous built-up welding silk material is FeaCrbMocCdBeYfNig.Enable the stainless steel of 304L
Amount ratio accounts for 60%, and powder core accounts for 40%, is converted into after atomic ratio, then Fe=45, Cr=11.8, Ni=5.7, then Mo=14.25, and C=
14.25, B=6.65, Y=2.35.
Preparing above-mentioned Fe-based amorphous simulation overlay cladding, the specific method is as follows:
Step 1: pressing molecular formula Fe45Cr11.8Mo14.25C14.25B6.65Y2 .35Ni5.7By raw material Fe, Cr, Mo, C, B, Y and
Ni carries out ingredient, specifically: alloy atom percentage is converted into mass percent, wherein 304L stainless steel accounts for 60%, includes
Fe, Cr, Ni element are wrapped in 304L stainless steel sheet| after remaining Mo, C, FeB, Y powder core weighs respectively in proportion；
Step 2: the raw material prepared in step 1 is put into arc-melting furnace and carries out built-up welding simulation, fast melting 1 ~ 2 time
Afterwards, melt liquid is filled with rapidly using the impulse force of high-voltage arc with a thickness of 2mm, width 12mm, length is the synusia of 70mm
After in die cavity, the Fe-based amorphous overlay cladding of simulation mariages arc surfacing has just been obtained.
The sample structure made from X-ray diffraction method characterization above-mentioned steps 2, as a result as shown in Figure 1, showing that the ingredient is made
Lamellar amorphous simulation overlay cladding be completely amorphous structure.
Fe-based amorphous simulation overlay cladding obtained above is analyzed with DSC-200 differential scanning calorimeter, setting rises
Warm rate is 20 DEG C/min, and Range of measuring temp is room temperature to 1250 DEG C.Its differential thermal analysis curve is as shown in Figure 2.
With friction wear testing machine in load 9N, revolving speed 500r/min, fraction time 60min, opposite grinding bulb material
For Si3N4Friction condition under test the coefficient of friction of Fe-based amorphous simulation overlay cladding obtained, as a result as shown in Figure 3.
With Princeton electrochemical workstation respectively at testing Fe-based amorphous simulation heap obtained above under salt, acidic environment
The dynamic potential polarization curve of layer, as a result as shown in Figure 5, Figure 6.
Embodiment 2
In the present embodiment, the atomic formula of Fe-based amorphous built-up welding silk material is FeaCrbMocCdBeYfNig.Enable the stainless steel of 304L
Amount ratio accounts for 66%, and powder core accounts for 34%, is converted into after atomic ratio, then Fe=48.86, Cr=13.14, Ni=6.4, then Mo=12, C
=12, B=5.6, Y=2.
The preparation of the Fe-based amorphous simulation overlay cladding and test method and the method in embodiment 1 are essentially identical, and institute is different
304L stainless steel account for the 66% of gross mass, remaining element is according to molecular formula Fe48.86Cr13.14Mo12C12B5.6Y2Ni6.4In original
Sub- percentage preparation raw material, does exocuticle with 304L stainless steel later and is wrapped up.
Embodiment 3
In the present embodiment, the atomic formula of Fe-based amorphous built-up welding silk material is FeaCrbMocCdBeYfNig.Enable the stainless steel of 304L
Amount ratio account for 70%, powder core accounts for 30%, be converted into after atomic ratio, then Fe=50.75, Cr=13.79, Ni=6.72, then Mo=
10.5, C=11.18, B=5.21, Y=1.85.
The preparation of the Fe-based amorphous simulation overlay cladding and test method and the method in embodiment 1 are essentially identical, and institute is different
304L stainless steel account for the 70% of gross mass, remaining element is according to molecular formula Fe50.75Cr13.79Mo10.5C11.18B5.21Y1.85Ni6.72
In atomic percent preparation raw material, do exocuticle with 304L stainless steel later and wrapped up.
Above-described embodiment is used to illustrate the present invention, rather than limits the invention, and wants in right of the invention
In the protection scope asked, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (3)
1. a kind of Fe-based amorphous welding material of Twin wire arc built-up welding, it is characterised in that: the Fe-based amorphous welding material
Atomic component are as follows: FeaCrbMocCdBeYfNig, wherein a=100-b-c-d-e-f-g, 11≤b≤14.5,9≤c≤14,9≤d
≤ 18,5≤e≤8,1.5≤f≤2.5,5≤g≤7；Fe-based amorphous welding material is specifically by 304L stainless steel packaging material and core material group
At core material includes Mo powder, C powder, FeB powder and Rare Earth Y powder, and the particle size range of core material is controlled in 250 ~ 380 mesh.
2. a kind of Fe-based amorphous welding material of Twin wire arc built-up welding according to claim 1, it is characterised in that: described
304L stainless steel packaging material with a thickness of 0.30mm, the gage of wire after wrapping up core material is 2.0 ~ 3.0mm.
3. a kind of Fe-based amorphous welding material of Twin wire arc built-up welding according to claim 1, it is characterised in that: described
The welding condition of Twin wire arc built-up welding are as follows: 6 ~ 12m/min of wire feed rate, 30 ± 2V of voltage, 300 ± 20A of electric current.
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2017
- 2017-04-24 CN CN201710268785.4A patent/CN107009048B/en active Active
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| CN101215679A (en) * | 2008-01-08 | 2008-07-09 | 厦门大学 | Nonmagnetic iron-base block amorphous alloy and preparation method thereof |
| CN101619433A (en) * | 2009-06-19 | 2010-01-06 | 北京工业大学 | Powered core coil for spraying FeCrMoCBSi amorphous alloy coating by electric arc |
| CN103298966A (en) * | 2011-01-17 | 2013-09-11 | 阿尔卑斯绿色器件株式会社 | Fe-based amorphous alloy powder, dust core using the Fe-based amorphous alloy powder, and coil-embedded dust core |
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