CN104630769B - Flyash activity Argon arc cladding Ni base aluminium oxide titanium diboride composite coating and preparation method thereof - Google Patents
Flyash activity Argon arc cladding Ni base aluminium oxide titanium diboride composite coating and preparation method thereof Download PDFInfo
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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Abstract
The invention discloses a kind of flyash activity Argon arc cladding Ni base Al2O3‑TiB2Composite coating and preparation method thereof, belongs to Gas Tungsten Arc Welding technical field.The present invention, with aluminous fly-ash for primary raw material preparation A TIG weldering composite reactive agent, meanwhile, composite reactive agent is applied to arc cladding technology, is prepared for active Argon arc cladding Ni base Al on Q235 steel matrix surface2O3‑TiB2Coating, increases weld penetration under the conditions of realizing equivalent heat input, and improves material surface hardness, wear-resisting and corrosion resistance, improve the service life of component of machine.
Description
Technical field
The invention belongs to Gas Tungsten Arc Welding technical field is and in particular to a kind of flyash activity Argon arc cladding Ni base
Al2O3-TiB2Composite coating and preparation method thereof.
Background technology
Activating-tungsten inert gas welding (abbreviation A-TIG weldering) technology be quickly grow in welding profession both at home and abroad at present, apply wide
General solder technology, this technology almost can be used for the welding of all metal materials, and can obtain high-quality welding point, weldering
Seam fusion penetration can reach 2～3 times of traditional argon tungsten-arc welding.At present, A-TIG welds oneself through being widely used in Aero-Space, oil
Work, the mechanical field such as ship and transportation.Active agent formulation and STUDY ON THE WELDING are the cores that A-TIG welds, but both at home and abroad
The composition mostly to activating agent for the related research institutes and formula carry out patent protection, and open publication seldom reports, this directly results in
A-TIG weldering activating agent price is high, limits it to a certain extent in fields such as Aero-Space, military and mechanical heavy industrys
Application.At present, the surfactant material commonly used both at home and abroad mainly has SiO2、B2O3、TiO2、Cr2O3, NaCl, NaF and CaF2Deng thing
Matter.And activating agent raw material all using analyze pure rank commercially available chemical reagent, this improve to a certain extent A-TIG weldering one-tenth
This.
Active Argon arc cladding refers to activating agent with certain addition manner with cladding material jointly in argon arc welding Source
Lower fusing, obtains the coating production with certain property cladding layer on weldment surface.Excellent cladding means expectation
Obtain the cladding layer that fusion penetration is shallow, metal dilution rate is little, so both can ensure that cladding layer had good binding ability, and can profit
Cladding layer required for being obtained with less wlding.Therefore, traditional Argon arc cladding technology typically adopt " small current, low-voltage, thin
Layer is repeatedly " cladding method prepare cladding layer, but the method can lead to cladding layer to be repeatedly heated, overheated tendency increases, simultaneously
Serious crackle or peeling is produced inside cladding layer.Therefore, reduce overheated tendency under the conditions of ensureing certain dilution rate
It is the key solving this problem.
Activating flux weld technology can be realized weld penetration under heat input condition and significantly increases waiting due to the introducing of activating agent
Plus, molten wide is slightly shunk.In other words, under the conditions of waiting dilution rate, active Argon arc cladding can reduce heat input, that is, reduce molten
The overheated tendency of coating.Meanwhile, active agent component design freely it is also possible to be occurred anti-using activating agent and cladding material
Should, form cenotype, also can produce impact to the tissue of cladding layer and performance.It is also A-TIG in active Argon arc cladding technical spirit
The expansion further of technology.Active Argon arc cladding technical equipment is simple, mechanization and high degree of automation, welding cost cheap,
It is easy to technology popularization it is adaptable to the surfacecti proteon of various material and complex-shaped mine mechanism and follow-up reparation, permissible
Realize good one side welding with back formation function, there is very wide application prospect.
Argon arc cladding technology is also one kind of surface cladding technology, will be coated on workpiece table in some way by alloy powder
Face, under argon arc welding Source, electric arc ionization heating carrys out melt painting material, and then it is special to have certain in the acquisition of weldment surface
The material surface modifying means of different performance cladding layer.Energy required for Argon arc cladding comes from gas medium in discharge process
Produced arc heat, its essence is the ionization of gas medium.The heat of Argon arc cladding is concentrated, and energy density is between free electric arc
And compression arc between, quick heating makes local melting rear and is cooled to room temperature with certain rate of cooling.Weld process in A-TIG
In, argon is completely covered electric arc and alloy powder, so that electric arc is not affected by surrounding air, and avoids cladding material and surrounding
Nitrogen, oxygen etc. react, decrease the scaling loss of alloying element and oxidation in molten bath, thus playing a protective role.
At present, the external phase with regard to the material Argon arc cladding ceramic particle reinforced metal base cladding layer such as titanium alloy and rustless steel
Close research more.[S Mridha, H S Ong, L S Poh, the et al.Intermetallic coatings such as S.Mridha
produced by TIG surface melting[J].Jounal of Materials Processing Technology,
2001,113(l):516-520] Ti-Al intermetallic compound cladding is prepared in titanium alloy surface using Argon arc cladding technology
Layer, has Ti inside cladding layer3Al and TiAl strengthens phase particles generation, does not have obvious pore and the defect such as is mingled with, and it is micro- hard
Degree can exceed 500HV.[Soner Buytoz, the Mustafa Ulutan, M.Mustafa such as Soner Buytoz
Yildirim.Dry sliding wear behavior of TIG welding clad WC composite coatings
[J].Applied Surface Science,2005,252(5):1313-1323] it is prepared in AISI4340 stainless steel surfaces
Argon arc cladding WC coating, its microhardness value be 950～1200HV, when productivity ratio be 1.209mm/s, powder feeding rate be 0.5g/
S, heat input are that the mass loss of cladding layer during 13.9kJ/cm is minimum.And the domestic research with regard to Argon arc cladding technology mainly collects
In Cast Iron Surface argon arc remelting strengthening and surface of low-carbon steel prepare self-fluxing alloyed powder cladding layer.Cladding material (filling material
Material) the research on the core choosing and its with the matching of welding base metal be Argon arc cladding technology.And the cladding matrix of studies in China
Material is mainly iron-based, cobalt-based and nickel base self-fluxing alloy powder, and reinforcing material has carbide, boride, silicide, nitride
Deng.Reinforcing material with hard particles form Dispersed precipitate cladding matrix material internal so as to have good wearability, anti-corrosion
Property and chemical stability.Therefore, the formation strengthening granule is controlled to be the key factor improving Argon Arc Cladding Layer performance.
Content of the invention
The invention provides a kind of flyash activity Argon arc cladding Ni base Al2O3-TiB2Composite coating and preparation method thereof,
Aluminous fly-ash is primary raw material preparation A-TIG weldering composite reactive agent, meanwhile, composite reactive agent is applied to Argon arc cladding work
Skill, is prepared for active Argon arc cladding Ni base Al on Q235 steel matrix surface2O3-TiB2Coating, increases under the conditions of realizing equivalent heat input
Big weld penetration, and improve material surface hardness, wear-resisting and corrosion resistance, improve the service life of component of machine.
The composite reactive agent adopting in the present invention with aluminous fly-ash as primary raw material, with SiO2、B2O3, Ti and La2O3For
Auxiliary activity agent composition, composite reactive agent prescription：
In 60% aluminous fly-ash+15.76%SiO2+ 8.88%B2O3On the basis of+15.36%Ti, additionally add quality
Percentage composition is 5%La2O3, fusion penetration and molten wide be respectively 5.89mm and 7.85mm, and depth-to-width ratio is 0.7503.
The present invention prepares Argon arc cladding Ni base Al2O3-TiB2The cladding raw material of composite coating is chosen for：
In 60%Ni60A+16%Al2O3+ 24% (Al+TiO2+B2O3) on the basis of, then add weight/mass percentage composition and be
5%Na2B4O7·10H2O, is prepared for active Argon Arc Cladding Layer.It is in metallurgical binding and matrix between, interface flawless, pore
With the defect such as be mingled with.The active Argon arc cladding in the layer hard phase preparing is with Al2O3、TiB2And Fe2Based on B, active cladding
SiO is also generated through reaction in-situ in layer2、Ni3Si and Fe1.7Al4Si phase.
Described flyash activity Argon arc cladding Ni base Al2O3-TiB2The preparation method of composite coating comprises the steps：
The first step, the pretreatment of matrix material；
Second step, coats one layer of composite reactive agent in matrix surface；
3rd step, places cladding block on composite reactive agent surface；
4th step, argon arc welding obtains active cladding layer.
It is an advantage of the current invention that：
(1) efficient and environment-friendly type A-TIG weldering activity is prepared for primary raw material using coal associated resources aluminous fly-ash
Agent, achievable flyash efficient, economical and environmentally friendly apply, be that the high value added utilization of flyash opens new way and Xin Fang
Method.
(2) A-TIG weldering activating agent is applied to Argon arc cladding technology.The addition of activating agent not only reduces Argon arc cladding
Heat input, also promotes the formation of a lot of cenotypes, and welding base metal heat affected area and thermal deformation are reduced to minimum degree, improves welding
Efficiency and cost-effective.
(3) cladding strengthens granule is oxide, combines the double dominant of additional granule and in situ reaction system, not only subtracts
Lack the cost of cladding layer, the complicated hard phase simultaneously generating can improve hardness, wearability and the corrosion resistance of component of machine,
Open new way for metal material anticorrosion antiwear.
Brief description
Fig. 1 is the Cross Section Morphology of active cladding layer；
Fig. 2 is the XRD spectrum of active cladding layer；
Fig. 3 is matrix-activity cladding layer transition region microscopic structure；
The SEM pattern of Fig. 4 activity cladding layer top different amplification.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
The invention provides a kind of flyash activity Argon arc cladding Ni base Al2O3-TiB2Composite coating and preparation method thereof,
Described preparation method comprises the steps：
The first step, the pretreatment of matrix material；
Test matrix material is Q235 steel, and its chemical composition (weight/mass percentage composition) is as shown in table 1, a size of 100mm
×30mm×8mm.Matrix is polished with angle grinder, to remove rust and the oxide skin on surface, and using abrasive paper for metallograph to its essence
Thin process, then uses acetone and washes of absolute alcohol.
Chemical composition/the wt% (total amount is 100%) of table 1 Q235 steel
Second step, coats one layer of composite reactive agent in matrix surface；
It is main active agent raw material using aluminous fly-ash, be added to SiO2、B2O3, Ti and La2O3For auxiliary activity
Agent composition, obtaining composite reactive agent prescription is：
60% aluminous fly-ash+15.76%SiO2+ 8.88%B2O3+ 15.36%Ti, on this basis, then adds quality
Percentage composition is 5%La2O3.
Al in described aluminous fly-ash2O3And SiO2Content be up to more than 80wt%, contain in aluminous fly-ash is each
Composition (weight/mass percentage composition) (is measured by Ministry of Land and Resources northeast mineral resources supervisory detection center) as shown in table 2.Power plant
Directly containing a small amount of unburnt C in the flyash of discharge, before test, aluminous fly-ash is placed in incubator in SX2-8-10 type
In formula resistance furnace, 800 DEG C of insulation 2h carry out carbonization treatment.
Chemical composition/the wt% (total content is 100%) of table 2 aluminous fly-ash
Composite reactive agent is placed in mortar and is fully ground, and cross 200 mesh sieves, make granularity between 70～80 μm.Using
FA1104N type electronic balance weighs in proportion, is mixed for solvent with acetone, is prepared into suspension, is coated in through pretreatment
Q235 steel matrix surface.Composite reactive agent coating thickness standard is advisable so that metal surface gloss is completely covered；Then sample is put
Dry for standby in DHG-9076A type electric heating constant-temperature blowing drying box.
3rd step, arranges cladding block on composite reactive agent surface；
, with ni-based self-fluxing alloy Ni60A as matrix, as shown in table 3, its mass fraction is respectively for chemical composition for cladding material
Account for the 50～70% of gross mass, remaining is cladding alloy powder.Cladding alloy powder is by additional enhancing granule Al2O3Anti- with original position
Answer system Al-TiO2-B2O3Composition, the two ratio is respectively (1:4)～(4:1) when, preferably Ni60A is 60%, Al2O3And Al-
TiO2-B2O3The mass ratio of system is 2:3, it is 16% and 24% respectively.Borax, as a kind of low-melting compound, has
Dissolving metal-oxide effect, can play the effect purifying metal, fluxing in welding process, therefore on above-mentioned formula basis
Upper extra interpolation weight/mass percentage composition is 5% Borax.
Described in situ reaction system Al-TiO2-B2O3, including analytically pure Al powder, analytically pure TiO2Powder and point
Analyse pure B2O3Powder, between three, mol ratio is 10:3:3.
Described cladding material is in 60%Ni60A+16%Al2O3+ 24% (Al+TiO2+B2O3) on the basis of, then add
Weight/mass percentage composition is 5% (Na2B4O7·10H2O), prepare active Argon Arc Cladding Layer as raw material.
Chemical composition/the wt% (total content is 100%) of table 3 Ni60A
After cladding material blending uniformly, the modulus according to addition 1mL～10mL (preferably 4ml) in every 10g powder is 2.5
Waterglass (preferably sodium silicate), and stirring makes waterglass uniform wet alloy powder immediately.Using WE-30 type universal testing machine
Compression, on-load pressure is 50MPa～100MPa, and preferably on-load pressure is 80MPa, prepares cladding block.It is bonding using waterglass
Agent, cladding block is bonded at composite reactive agent surface, is placed on ventilation room temperature and dries in the shade 24h, then 150 DEG C of drying in drying baker
2h.
The thickness of described cladding block is 1.5～2.0mm, and when on-load pressure is for 80MPa, cladding block thickness is
1.8mm.
4th step, argon arc welding obtains active cladding layer.
Described argon arc welding technique parameter is：Welding current l20A～180A, speed of welding 95～140mm min-1, argon
Flow 5.0～9.5L min-1, arc length 1.0～4.0mm.Preferably, welding current 160A, welding cladding speed 110mm/
Min, argon flow amount 6.5L min-1, arc length 3.0mm, ceramic nozzle 8#, cerium tungsten electrode, tungsten electrode diameter 2mm, tungsten electrode wedge angle
60°.
It is in metallurgical binding between described active cladding layer and matrix, interface flawless, pore and the defect such as be mingled with.Preparation
The active Argon arc cladding in the layer hard phase obtaining is with Al2O3、TiB2And Fe2Based on B, in active cladding layer through reaction in-situ also
Generate 3Al2O3·2SiO2、Ni3Si and Fe1.7Al4Si phase.
The preparation method being provided according to the present invention, cladding block pressing pressure chooses 80MPa, and cladding block size is 1.8mm, argon
Arc welding technological parameter is：By changing cladding alloy powder composition proportion, as shown in table 4, on the basis of this composition proportion again
Add 5%Na2B4O7·10H2O, obtains a series of activity cladding layer.
Table 4 cladding alloy powder composition proportion (wt%)
Using same preparation method, do not adopt the composite reactive agent in second step, directly cladding block is bonded in matrix
On, obtain conventional cladding layer, carry out Experimental Comparison with the active cladding layer of the present invention.
For M6 embodiment therein, the active cladding layer pattern and organizational structure obtaining is analyzed, as Fig. 1 institute
Show, the fusion penetration of active cladding layer and molten wide are respectively 5.25mm and 8.26mm, depth-to-width ratio is 0.64.
As shown in Fig. 2 with Al in active cladding layer2O3And TiB2Content based on, additionally generate Fe2B、3Al2O3·
2SiO2、Ni3Si and Fe1.7Al4Si phase.
Fig. 3 is the pattern of matrix-activity cladding layer transition region.The lower left corner is heat affected area, and the upper right corner is active cladding layer
Microstructure morphology.As seen from Figure 3, active cladding layer forms the Bai Liang interface being about 25 μ m-thick in transition region, and activity is molten
Columanar structure within coating along perpendicular to melt tank edge direction to center epitaxial growth, at active cladding layer and basal body interface
Pore-free and crackle, show to have good metallurgical binding between active cladding layer and matrix.At melt tank edge, elongate column is brilliant
More they tend to tubbiness, also part equiax crystal grows along melt tank edge simultaneously.Additionally, activity cladding layer internal substantial amounts of B, Si etc. is non-
Metallic element has the effect of slag making, deoxidation in cladding process, is conducive to avoiding slag inclusion and oxide impurity in cladding layer
Produce.
Fig. 4 is the high power SEM shape appearance figure of active cladding layer top tissue.Enhancing granule within active cladding layer is in stub
Shape, is uniformly embedded in coat inside in almost parallel mode, and spreadability is preferable.SEM it has been observed that active Argon Arc Cladding Layer due to
The addition of activating agent, during Argon arc cladding, energy is more concentrated, cladding layer thermally equivalent, and granule fully melts and mobility
Relatively preferable, uniformly spread over inside cladding layer.From cladding layer high power SEM shape appearance figure, enhancing inside active cladding layer
Grain is in then that fish spicule shape grows along vertical grain boundaries sides aligned parallel, crystal grain more fine uniform.This is because activating agent heat is concentrated
Fusion penetration is led to increase, molten bath area increases, heat passes through base material conduction velocity faster, the rapid solidification suppression of Argon arc cladding
The growth of cladding layer internal grain, thus reached the effect of homoepitaxial and crystal grain thinning.
The surface macrohardness value of active Argon Arc Cladding Layer is 64.9HRC, and matrix (Q235 steel 12.1HRC) relatively improves
4.37 again.The microhardness of active cladding layer is between 781.7HV～946.9HV, and its highest microhardness is relative to matrix (about
For 160HV) improve 4.92 times.
As shown in table 5, different grain size shows to the abrasive wear behavior test data under mill material, when to mill material respectively
During for 2#, 3# and 4# abrasive paper for metallograph, the relative wear grain polishing machine of active cladding layer is 7.05～10.69 times of matrix.
Table 5 abrasive grain wear test data
With the increase to mill material model for the abrasive wear, the hard particles particle size reduction to mill material surface distribution, base
The unit area weight loss of body and cladding layer is gradually lowered.
15%H is selected in the test of acid corrosion-resistant performance2SO4Solution be corrosive medium, corrosion 21h after, active cladding layer acidproof
Corrosive nature (unit area weightlessness 6.0093*102g/m2) it is matrix (unit area weightlessness 17.9315*102g/m2) 2.98
Times.
Alkali corrosion resistance performance test select 10%NaOH solution be corrosive medium, corrosion 21h after, active cladding layer alkaline-resisting
Corrosive nature (unit area weightlessness 3.4902*102g/m2) it is matrix (unit area weightlessness 13.7959*102g/m2) 3.95
Times, this explanation cladding layer has more preferable alkali corrosion resistance performance compared with matrix..
After corrosion 144h in sea water solution, often acid corrosion-resistant performance (the unit area weightlessness 1.5305* of active cladding layer
102g/m2) it is matrix (unit area weightlessness 6.3417*102g/m2) 4.14 times.
After corrosion 144h in petroleum media solution, acid corrosion-resistant performance (the unit area weightlessness 2.5777* of active cladding layer
102g/m2) it is matrix (unit area weightlessness 14.2051*102g/m2) 5.51 times.
Erosive wear concentration of medium (water constituents) is 5000：2800, erosion angle is 90 °, rotating speed respectively 200r/min,
300r/min and 400r/min.The erosion-wear-resisting performance of erosive wear 300min activity cladding layer is the 4.81～5.04 of matrix
Times.Under the conditions of same rotational speed, the erosive wear of matrix is the most serious, the erosion-wear-resisting better performances of active cladding layer, ginseng
It is shown in Table 6.
Erosive wear data under the conditions of table 6 different rotating speeds
Concentration of medium is also the key factor of impact material Erosive Properties, erosive wear rotating speed 300r/min, erosion
Angle is 90 °, and concentration of medium (water constituents) is respectively 5000：1600、5000：2800 and 5000：4000.
Referring to table 7, the erosion-wear-resisting performance of erosive wear 300min activity cladding layer is 3.49～5.70 times of matrix.
Under same media concentration conditions, the erosive wear of matrix is weightless to be far above active cladding layer.
Erosive wear data under table 7 different medium concentration
Under the conditions of different rotating speeds, erosive wear weight loss in sea water+quartz sand medium for the cladding layer is as shown in table 8.Pass through
Calculate and understand, after erosive wear 150min, the erosion-wear-resisting performance of active cladding layer is 4.40～5.59 times of matrix.Matrix
Unit area weight loss to be significantly larger than active cladding layer.Meanwhile, under the conditions of giving in table 8 and not adopting composite reactive agent
Conventional cladding layer erosive wear data, after erosive wear 150min, the erosion-wear-resisting performance of conventional cladding layer is the 3.90 of matrix
～4.97 times.
Erosive wear data under the conditions of table 8 different rotating speeds
In order to inquire into the impact to test of erosion medium further, during this test statistics 120min, matrix and cladding layer exist
Erosion resistance testses data in tap water-quartz sand and artificial seawater-quartz sand, wherein experimental condition is identical, erosion concentration
For 5000:2800, erosion angle is 90 °, and rotating speed is respectively 200r/min, 300r/min and 400r/min.In different rotating speeds 200r/
Under the experimental condition of min, 300r/min and 400r/min, erosive wear amount in artificial seawater-quartz sand for the cladding layer is all big
In the wear extent in tap water-quartz sand.
Under the conditions of different rotating speeds, erosive wear weight loss in petroleum media+quartz sand for the cladding layer is as shown in table 9.Pass through
Calculate and understand, after erosive wear 150min, the erosion-wear-resisting performance of active cladding layer is 5.60～6.11 times of matrix, conventional
The erosion-wear-resisting performance of cladding layer is 5.05～5.50 times of matrix.Erosive Properties in petroleum media for the cladding layer will
Better than QQ35 steel matrix.
Table 9 cladding layer erosion resistance test result (200r/min)
Change from 200r/min to 400r/min with erosion medium rotating speed, the weight loss of matrix and cladding layer constantly increases
Greatly.Under relatively low rotating speed, the material plasticity that clad layer surface is caused destroys relatively gently, therefore weightless less.In cladding layer
Primary strengthening phase is Fe2B、Al2O3、TiB2Deng hard particles, the generation of cenotype is equal to cladding layer compound type and distribution, form
Create considerable influence, increased the protective effect simultaneously between cenotype of cladding layer and substrate combinating strength also increases, higher
Rotating speed under cladding layer erosive wear resistance also significantly improve.The flyash activity solder flux being provided using the present invention, with Q235 steel be
Matrix carries out A-TIG weldering, and result of the test shows, fusion penetration and molten wide are respectively 5.89mm and 7.85mm, and depth-to-width ratio is 0.75, about
When inactive dose 4.3 times.
Claims (7)
1. flyash activity Argon arc cladding Ni base Al2O3-TiB2The preparation method of composite coating it is characterised in that：Described preparation side
Method comprises the steps：
The first step, the pretreatment of matrix material；
Second step, coats one layer of composite reactive agent in matrix surface；
Choose aluminous fly-ash, Al in described aluminous fly-ash2O3And SiO2Content 80wt% more than；Using front by high alumina
Flyash carries out the carbonization treatment of 800 DEG C of insulation 2h；Then add SiO in the aluminous fly-ash after carbonization treatment2、B2O3、
Ti, wherein aluminous fly-ash 60%, SiO215.76%th, B2O38.88% and Ti15.36%；On this basis, then add quality
Percentage composition is 5%La2O3, form composite reactive agent；
Composite reactive agent is placed in mortar and is fully ground, and cross 200 mesh sieves, make granularity between 70～80 μm；With acetone it is
Solvent mixes, and is prepared into suspension, is coated in the matrix surface through pretreatment；Then dry for standby；
3rd step, places cladding block on composite reactive agent surface；The raw material of cladding block is：
In 60%Ni60A+16%Al2O3+ 24% (Al+TiO2+B2O3) on the basis of, then add weight/mass percentage composition for 5%
Na2B4O7·10H2O；After the raw material blending uniformly of cladding block, the modulus according to addition 1mL～10mL in every 10g powder is 2.5
Waterglass, and stirring makes waterglass uniform wet alloy powder immediately；On-load pressure is 50MPa～100MPa, prepares cladding block；
It is binding agent using waterglass, cladding block is bonded at composite reactive agent surface, be placed on ventilation room temperature and dry in the shade 24h, Ran Hou
150 DEG C of drying 2h in drying baker；
The thickness of described cladding block is 1.5～2.0mm；
Described Al+TiO2+B2O3, including analytically pure Al powder, analytically pure TiO2Powder and analytically pure B2O3Powder, three
Between person, mol ratio is 10:3:3；
4th step, argon arc welding obtains active cladding layer.
2. preparation method according to claim 1 it is characterised in that：Described matrix material is chosen for Q235 steel.
3. preparation method according to claim 1 it is characterised in that：In 3rd step, on-load pressure is 80MPa, and cladding block is thick
Spend for 1.8mm.
4. preparation method according to claim 1 it is characterised in that：The technological parameter of argon arc welding described in 4th step
For welding current l20A～180A, speed of welding 95～140mm min-1, argon flow amount 5.0～9.5L min-1, electric arc is long
Degree 1.0～4.0mm, ceramic nozzle 8#, cerium tungsten electrode, tungsten electrode diameter 2mm, 60 ° of tungsten electrode wedge angle.
5. preparation method according to claim 1 it is characterised in that：The technological parameter of described argon arc welding is that welding is electric
Stream 160A, welding cladding speed 110mm/min, argon flow amount 6.5L min-1, arc length 3.0mm.
6. a kind of flyash activity Argon arc cladding Ni base Al2O3-TiB2Composite coating it is characterised in that：Described composite coating with
It is in metallurgical binding between matrix, the fusion penetration of active cladding layer and molten wide are respectively 5.25mm and 8.26mm, and depth-to-width ratio is 0.64；Multiple
Close in coating and include Al2O3、TiB2And Fe2B, also includes SiO2、Ni3Si and Fe1.7Al4Si phase.
7. a kind of flyash composite reactive agent it is characterised in that：With aluminous fly-ash as primary raw material, with SiO2、B2O3, Ti and
La2O3Supplemented by cosurfactant composition, wherein aluminous fly-ash carries out carbonization treatment before use；Composite reactive agent prescription：
In 60% aluminous fly-ash+15.76%SiO2+ 8.88%B2O3On the basis of+15.36%Ti, additionally add percent mass
Content is 5%La2O3.
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| CN106894016B (en) * | 2017-02-27 | 2019-03-01 | 辽宁工程技术大学 | The high-entropy alloy base composite coating and preparation method thereof of Argon arc cladding titanium carbide enhancing |
| CN106894015B (en) * | 2017-02-27 | 2019-04-16 | 辽宁工程技术大学 | Argon arc cladding high entropy alloy coating and preparation method thereof |
| CN108754399B (en) * | 2018-06-21 | 2020-02-21 | 江西科技师范大学 | Titanium diboride coating resistant to high-temperature fluoride molten salt corrosion and preparation method thereof |
| CN112609123A (en) * | 2020-12-29 | 2021-04-06 | 王翔 | Preparation process of wear-resistant bent pipe material |
| CN115961281B (en) * | 2022-12-15 | 2024-04-30 | 索罗曼(常州)合金新材料有限公司 | Surface corrosion-resistant titanium alloy and preparation method thereof |
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| CN102151937A (en) * | 2010-12-15 | 2011-08-17 | 清华大学 | Self-propagation high-temperature synthesis method for in-situ synthesis of metal base composite material overlaying layer |
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