CN107009048A - 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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- CN107009048A CN107009048A CN201710268785.4A CN201710268785A CN107009048A CN 107009048 A CN107009048 A CN 107009048A CN 201710268785 A CN201710268785 A CN 201710268785A CN 107009048 A CN107009048 A CN 107009048A
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- welding
- based amorphous
- powder
- twin wire
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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
-
- 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
Abstract
The invention discloses a kind of Fe-based amorphous welding material of Twin wire arc built-up welding, its Fe-based amorphous welding material composition is Fe Cr Mo C B Y Ni, and atomic formula is：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 characteristicses of the present invention are：Pass through 304L stainless steels（Main component element is Fe：70.1%、Cr：19.3%、Ni：10.6%）Packaging material is done, 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 anti-wear performance overlay cladding using Twin wire arc bead-welding technology.
Description
Technical field
The present invention relates to a kind of design of the Fe-based amorphous welding material of Twin wire arc built-up welding, welding material skill is particularly belonged to
Art field.
Background technology
Metallic material product is in use by by various forms of direct or indirect damages, most common of which
Damage type is abrasion and corrodes.It not only causes economic loss, and some even cause catastrophic accident.Modern industry
In, expand substantial amounts of research the problem of for galling and corrosion, how to obtain the metal material of wear and corrosion behavior into
For one of emphasis direction for studying at present.The excellent wear-corrosion resistance of Fe-based amorphous alloy, makes it in military project, aviation and stone
The field extensive uses such as change.Thermal spraying and technique for overlaying have that easy to operate, deposition area is big, efficiency high, excellent surface quality
The advantages of.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.At present, the researcher for having had 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 systems and low-alloy amount iron base amorphous alloy coatings, content of amorphous reach as high as 70.2%；And for example Hohai University
WenminGuo, Zhang et al. also do crust with 304L stainless steels, by High Speed Electric Arc Spraying, have prepared almost completely amorphous
The FeCrMoCBNiNbAl systems iron-based amorphous coating of state structure, its porosity only has 2%.But 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 for part is also met not
Many necessary application scenarios, meanwhile, the problem of porosity is also one in plasma spray technology inevitable, but built-up welding
Prepared overcoat is intended to more considerable than the effect of thermal spraying on thickness and in porosity.
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,
The surface overlaying of part one or more layers there is the technical process of certain performance materials.Its object is to repair part or increase by zero
Part surface abrasion resistance, it is heat-resisting, anti-corrosion in terms of performance.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, its content of amorphous can reach
47.44%.It is well known that with compared with constituent element crystal alloy, amorphous content is higher, its is wear-resisting with a series of property such as 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.Ensure heap
Layer has higher amorphous content in itself, not only to be groped on wlding composition, also require that overlay cladding has 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
Mother metal not receiving electrode is welded, is exactly the dilution rate for greatly reducing overlay cladding the characteristics of maximum, thus more improves overlay cladding
Purity, while improving built-up welding efficiency.
Cause the alloy that high amorphous content is formed in overlay cladding be it is relatively difficult, main cause be inside layer with
Metallurgically combined between base material, in order to fusion welding material and fusion area base material, it is necessary to larger heat input, so
The temperature of welding base material is improved, cooling velocity is relatively low, and can cooldown rate be to pass for form amorphous alloy
An important factor, which results in the difficulty increasing for obtaining higher amorphous content alloy.Possess high glass forming ability,
And required cooldown rate is very low（Only need 102~103 K·s-1）Fe-based amorphous composition Fe41Co7Cr15Mo14C15B6Y2, and have
Excellent corrosion-proof wear performance, the application in terms of resurfacing welding material is a splendid selection.When the composition is used for monofilament built-up welding
When, the amorphous content of layer can reach 47.44%, can be significantly in the case of lower dilution rate if be used for mariages built-up welding
Improve the amorphous content of layer.But the Fe-based amorphous constituent element composition is but difficult to the composition with the flux cored wire of mariages built-up welding
It is fitted together to 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）This problem, welding wire are solved well
The main element containing Fe, Cr, Ni of packaging material 304L stainless steels, powder core is Mo powder, C powder, FeB powder, Y powder.
The content of the invention
The present invention is intended to provide a kind of Fe-based amorphous welding composition of Twin wire arc built-up welding, utilizes Twin wire arc heap welder
Skill can prepare thickness up to millimetre-sized, nearly 100% amorphous, the corrosion-resistant and excellent overlay cladding of anti-wear performance.
A kind of Twin wire arc built-up welding of the present invention is with the atomic component of Fe-based amorphous welding material：
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 up of 304L stainless steels packaging material and core, and core includes
Mo powder, C powder, FeB powder and Rare Earth Y powder, the particle size range of core are controlled in 250 ~ 380 mesh.
The thickness of described 304L stainless steel packaging materials is 0.30mm, and it is 2.0 ~ 3.0mm that it, which wraps up the gage of wire after core,.
The welding condition of described Twin wire arc built-up welding is：6 ~ 8m/min of wire feed rate, 30 ± 2V of voltage, electric current 300 ±
20A。
Beneficial effects of the present invention：
The present invention passes through welding material composition selection, it is not necessary to by Fe-based amorphous composition Fe41Co7Cr15Mo14C15B6Y2Make in advance
It is standby, then carry out built-up welding using amorphous bar as medicine core.Directly welding powder core can be made in raw material by welding material of the present invention
Silk material, by the low feature of Twin wire arc technique for overlaying dilution rate, can prepare amorphous content close to 100% overlay cladding, directly
Property, farthest reduce the excellent properties of iron-base block amorphous alloy, improve the overlay cladding prepared under arc surfacing
The problem of amorphous content is not high enough, so that layer can be served in more severe actual application environment.Utilize mariages
Arc surfacing technique can prepare thickness up to grade, nearly 100% amorphous state, corrosion-resistant and excellent anti-wear performance overlay cladding.
Brief description of the drawings
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 1mol/L HCl solution.
Embodiment
Embodiment 1
In the present embodiment, the atomic formula of Fe-based amorphous built-up welding silk material is FeaCrbMocCdBeYfNig.Make 304L stainless steel mass ratioes
Account for 60%, powder core accounts for 40%, be converted into after atomic ratio, then Fe=45, Cr=11.8, Ni=5.7, then Mo=14.25, C=
14.25, B=6.65, Y=2.35.
The specific method for preparing above-mentioned Fe-based amorphous simulation overlay cladding is as follows：
Step 1：By molecular formula Fe45Cr11.8Mo14.25C14.25B6.65Y2 .35Ni5.7Raw material Fe, Cr, Mo, C, B, Y and Ni are entered
Row dispensing, be specially：Alloy atom percentage is converted into mass percent, wherein 304L stainless steels account for 60%, include Fe, Cr,
Ni elements, after remaining Mo, C, FeB, Y powder core is weighed respectively in proportion, are wrapped in 304L stainless steel sheet|s；
Step 2：The raw material prepared in step 1 is put into arc-melting furnace progress built-up welding simulation, after fast melting 1 ~ 2 time, profit
It is 2mm that melt liquid is filled with rapidly to thickness with the impulse force of high-voltage arc, and width is 12mm, and length is in 70mm synusia die cavity
Afterwards, the Fe-based amorphous overlay cladding of simulation mariages arc surfacing has just been obtained.
Sample structure made from above-mentioned steps 2 is characterized with X-ray diffraction method, as a result as shown in figure 1, showing that the composition 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 calorimeters, sets and rises
Warm speed 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, rotating speed is 500r/min, and fraction time is 60min, to abrading-ball head material
For Si3N4Friction condition under test the coefficient of friction of obtained Fe-based amorphous simulation overlay cladding, as a result as shown in Figure 3.
With Princeton electrochemical workstation respectively at testing Fe-based amorphous simulation heap obtained above under salt, sour 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.Make 304L stainless steel mass ratioes
66% is accounted for, 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.
Preparation of the Fe-based amorphous simulation overlay cladding and method of testing and method in embodiment 1 are essentially identical, institute's difference
304L stainless steels 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 steels afterwards and is wrapped up.
Embodiment 3
In the present embodiment, the atomic formula of Fe-based amorphous built-up welding silk material is FeaCrbMocCdBeYfNig.Make 304L stainless steel mass ratioes
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.
Preparation of the Fe-based amorphous simulation overlay cladding and method of testing and method in embodiment 1 are essentially identical, institute's difference
304L stainless steels 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 steels afterwards and wrapped up.
Above-described embodiment is used for illustrating the present invention, rather than limits the invention, will in the right of the present invention
In the protection domain asked, any modifications and changes made to the present invention both fall within protection scope of the present invention.
Claims (3)
1. a kind of Fe-based amorphous welding material of Twin wire arc built-up welding, it is characterised in that：Described Fe-based amorphous welding material
Atomic component is：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 specific by 304L stainless steels packaging material and core group
Into core includes Mo powder, C powder, FeB powder and Rare Earth Y powder, and the particle size range of core 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
The thickness of 304L stainless steel packaging materials is 0.30mm, and it is 2.0 ~ 3.0mm that it, which wraps up the gage of wire after core,.
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 is：6 ~ 12m/min of wire feed rate, 30 ± 2V of voltage, 300 ± 20A of electric current.
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| CN106191711A (en) * | 2016-07-07 | 2016-12-07 | 河海大学 | A kind of iron-based amorphous powder and its preparation method and application |
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Patent Citations (8)
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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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