CN110438487A - Wear-resistant corrosion-resistant laser cladding layer of a kind of micro-nano granules enhancing and preparation method thereof - Google Patents
Wear-resistant corrosion-resistant laser cladding layer of a kind of micro-nano granules enhancing and preparation method thereof Download PDFInfo
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- CN110438487A CN110438487A CN201910639026.3A CN201910639026A CN110438487A CN 110438487 A CN110438487 A CN 110438487A CN 201910639026 A CN201910639026 A CN 201910639026A CN 110438487 A CN110438487 A CN 110438487A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- 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
Abstract
The invention discloses a kind of micro-nano granules to enhance wear-resistant corrosion-resistant laser cladding layer and preparation method thereof, is prepared by iron-based metal powder and the WC particle made an addition in iron-based metal powder, the particle size of the two is consistent；Wherein, the mass percent of the WC particle added in iron-based metal powder is 10%-30%, wherein, iron-based metal powder is made of C, Fe, Cr, Si, Mn, Mo and V, micro-nano granules prepared by the present invention enhance that the hardness height of wear-resistant corrosion-resistant laser cladding layer, anti-slide fretting wear, shock resistance abrasive material is wear-resisting and salt spray corrosion resistance is excellent, the service life of electric power, petrochemical industry, machinery industry component can be effectively improved, and preparation method is simple.
Description
Technical field
The invention belongs to material surface coatings arts, and in particular to a kind of wear-resistant corrosion-resistant laser of micro-nano granules enhancing
Cladding layer and preparation method thereof.
Background technique
Closely related laser melting and coating technique increasingly causes the great attention of various countries with increasing material manufacturing and 3D printing technique.Swash
Light melting and coating technique is a kind of advanced process for modifying surface, can be used for manufacturing, repairs or remanufacture the critical component of every profession and trade, fits
With range and wide range of applications, including electric power, mining machinery, petrochemical industry, railway, automobile, ship, metallurgy, medical treatment
The industries such as instrument, aviation, lathe, mold, cutter.The critical component of these industries is in skimming wear, impact abrasive wear, fine motion
Erosion corrosion under abrasion and salt air corrosion serious condition causes huge economic attrition, also seriously affects production efficiency.Using
Laser melting and coating technique prepares its wear-and corrosion-resistant protective layer in parts surface, can prolong its service life, and reduces use cost.Swash
Light cladding has many advantages: such as laser energy density high concentration, matrix and cladding layer bond strength are high, the heat that matrix is subject to
Influence is smaller, is unlikely to deform, and basis material is to the dilution rate very little of cladding layer, and quickly, microstructure of surface cladding layer crystal grain is thin for cooling velocity
Small and distribution hooks, and cladding process automation easy to accomplish, cladding layer thickness is adjustable.Laser cladding layer can make every profession and trade field
The various service performances such as wear-resisting, the anti-corrosion and resistance to high temperature oxidation on critical component surface all increase, and utilize laser melting and coating technique
The preparation of high performance surface cladding layer is carried out to low-cost substrates, to replace the use of a large amount of precious materials, save the cost, in metal
There is broad prospect of application, such as application No. is 201611026235.3 patents of invention in terms of material surface modifying.
Compared to Ni-based and cobalt-base alloys, ferrous alloy cladding layer and base material component are close, and wetability and matching are more preferable, boundary
Face combines stronger and at low cost, application easy to spread.The ceramic phases such as carbide are added in iron-based powder, it can be into one
Step improves the wear and corrosion behavior of cladding layer, and the service life of elongate member is widely used for electric power, petrochemical industry, mine
The industrial circles such as machinery, oil gas drilling, cutter, mold.Therefore a kind of wear-resistant corrosion-resistant laser of micro-nano granules enhancing is researched and developed
Cladding layer and preparation method have Important Project application valence to improve the service life of every profession and trade perishable component easy to wear
Value.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of micro-nano granules enhancing
Wear-resistant corrosion-resistant laser cladding layer and preparation method thereof, which enhances wear-resistant corrosion-resistant laser cladding layer can
The effective service life for improving power station, chemical industry, machinery industry perishable component easy to wear, and preparation method is simple.
In order to achieve the above objectives, micro-nano granules of the present invention enhance wear-resistant corrosion-resistant laser cladding layer, by iron
Based metal powder and the WC particle made an addition in iron-based metal powder are prepared, wherein add in iron-based metal powder
The mass percent of WC particle is 10%-30%, and iron-based metal powder is mainly made of C, Fe, Cr, Si, Mn, Mo and V.
Iron-based metal powder by mass percent be 0.43%C, 90.81%Fe, 4.79%Cr, 1.17%Si, 0.48%Mn,
1.38%Mo and 0.94%V is constituted.
The granularity of iron-based metal powder is 44-104 μm.
The granularity of WC particle is 44-104 μm.
The laser cladding layer with a thickness of 3mm.
The micro-nano granules enhance the preparation method of wear-resistant corrosion-resistant laser cladding layer, comprising the following steps:
1) iron-based metal powder and WC particle powder are weighed, sieve simultaneously mechanical mixture, the final granularity that obtains is in 44-
104 μm of composite powder；
2) substrate surface is pre-processed；
3) in the protection of inert gas, composite powder cladding is obtained micro-nano in substrate surface using laser melting coating mode
Particle enhances wear-resistant corrosion-resistant laser cladding layer.
The concrete operations of step 2 are as follows: it is polished by sand paper substrate surface, makes 0.2 μm of surface roughness Ra,
Then it is cleaned again with acetone.
In step 3) by the way of laser melting coating by composite powder cladding during substrate surface, the power of laser
For 800W, laser scanning speed 300mm/min, powder sending quantity 18g/min, the diameter of the formed hot spot of laser is 3mm.
Compared with prior art, the present invention having the following advantages that and effect: micro-nano granules enhancing of the present invention is resistance to
It wears corrosion-resistant laser cladding layer to be prepared by iron-based metal powder and the WC particle made an addition in iron-based metal powder, iron
Based metal powder is made of C, Fe, Cr, Si, Mn, Mo and V, wherein Cr element can be with the tissue crystal grain in refining laser cladding layer
And carbide can be formed with C element, make laser cladding layer that there is good wearability and corrosion resistance, while improving laser melting coating
Harden ability, hardness, intensity and the toughness of layer；Si element can increase the mobility of molten pool metal, reduce crack tendence, favorably
In laser cladding layer shaping surface；Mo mainly improves the resistance to tempering of cladding layer, and plays the role of refining crystal grain, generates hard
Mutually improve Wear Resistance；V mainly forms tiny alloy carbide with C, can refine crystal grain, improves resistance to tempering；Mn is main
For deoxidation and strong austenite former, expand austenite phase field, improves the toughness of cladding layer material, be conducive to improve
Cladding layer material wear ability and corrosion resistance；These elements enable laser cladding layer effectively to improve service life, and are making
During standby, by iron-based metal powder cladding in parts surface, simple, convenient, warp by way of laser melting coating
Experiment, the present invention, which is formed by micro-nano granules, enhances that wear-resistant corrosion-resistant laser cladding layer presentation quality is preferable, and no cracking is existing
As, and mechanical property, wear and corrosion resistance obtain larger raising.
Detailed description of the invention
Fig. 1 is the XRD spectra that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer in the present invention；
Fig. 2 is the SEM figure that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer in the present invention；
Fig. 3 is the microhardness figure that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer in the present invention；
Fig. 4 is the dry Sliding Friction Wear rate figure that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer in the present invention；
Fig. 5 is the impact abrasive wear spirogram that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer in the present invention；
Fig. 6 is the salt air corrosion weightlessness spirogram that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer in the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Micro-nano granules in the present embodiment enhance wear-resistant corrosion-resistant laser cladding layer by iron-based metal powder and add
The WC particle being added in iron-based metal powder is prepared, wherein the quality percentage of the WC particle added in iron-based metal powder
Number is 10%-30%, wherein iron-based metal powder is made of C, Fe, Cr, Si, Mn, Mo and V.
Iron-based metal powder by mass percent be 0.43%C, 90.81%Fe, 4.79%Cr, 1.17%Si, 0.48%Mn,
1.38%Mo and 0.94%V is constituted.
The granularity of WC particle is 44-104 μm.
The granularity of iron-based metal powder is 44-104 μm.
Micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer with a thickness of 3mm.
In the present embodiment, the preparation method that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer includes following step
It is rapid:
1) iron-based metal powder and WC particle powder are weighed, sieve simultaneously mechanical mixture, the final granularity that obtains is in 44-
104 μm of composite powder；
2) substrate selects 4Cr5MoSiV1 steel, pre-processes to substrate surface；
3) in the protection of inert gas, composite powder cladding is obtained micro-nano in parts surface by the way of laser melting coating
Particle enhances wear-resistant corrosion-resistant laser cladding layer.
The concrete operations of step 2 are as follows: it is polished by sand paper substrate surface, makes 0.2 μm of surface roughness Ra,
Then it is cleaned again with acetone.
In step 3) by the way of laser melting coating by composite powder cladding during substrate surface, laser
Power is 800W, and the speed of laser scanning is 300mm/min, and powder feeding rate is 18g/min, and the diameter of the formed hot spot of laser is
3mm。
The surface of wear-resistant corrosion-resistant laser cladding layer is enhanced to micro-nano granules and cross section is detected using osmosis and split
Line, wherein microstructure is detected with morphology characterization using X-ray diffraction (XRD), scanning electron microscope (SEM)；It is wearability, resistance to
Corrosion and mechanical property are based on fretting wear instrument, impact abrasive wear instrument, salt spray corrosion test platform and microhardness testers and are tried
It tests and evaluates.
Fig. 1 is the XRD spectra that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer, as seen from the figure, cladding layer
Matrix is mutually Fe-Cr solid solution, Fe6W6C、Cr23C6Composition, wherein most of WC particle is decomposed, and Fe reacts with W, C
Form Fe6W6C；Cr and C in Self-fusing powder react to form Cr23C6。
Fig. 2 is the SEM figure that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer, and microstructure of surface cladding layer causes as seen from the figure
Close, crystal grain is tiny, the fine particle (size 30-100nm) of crystal boundary Dispersed precipitate, hinders crystal boundary mobile and inhibits cladding layer base
Body phase is grown up；Reinforced phase tiny simultaneously also improves into nuclear concentration, reduces abnormal grain! growth trend, and it is molten to accelerate laser
Tissue crystal grain refinement and densification process in coating.
Fig. 3 is the microhardness figure that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer, as seen from the figure, H13 steel
The hardness of powder melting layer is higher by 60% than matrix.After H13 powdered steel cladding layer adds WC, the hardness of composite cladding layer is further
Increase, mainly due to nanoscale Fe6W6C and Cr23C6Enhance the formation of hard phase, the solution strengthening of Fe-Cr solid solution and swashs
The cooling fine grained texture obtained of the rapid melting of light, the microhardness of cladding layer increase with ceramic phase additive amount and are increased.
Fig. 4 and Fig. 5 is the dry sliding wear rate and impact grinding that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer
Grinding abrasion spirogram, from low to high sequentially are as follows: H13+30%WC < H13+20%WC < H13+10%WC < H13 <substrate.H13 powdered steel is molten
The wear rate and abrasion loss of coating are substantially less than substrate, and as WC particle increases, wear rate and abrasion loss are further decreased.H13+
The anti-dry sliding wear and impact abrasive wear of 30%WC composite cladding layer are had excellent performance.
In conjunction with Fig. 1 to Fig. 4, it is seen that tissue refined crystalline strengthening, the solution strengthening of Fe-Cr solid solution, Fe6W6C and Cr23C6Micro-nano
The invigoration effect of rice grain reinforced phase is conducive to the raising of laser cladding layer hardness and wearability.
Fig. 6 is the salt air corrosion weightlessness spirogram that micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer, as seen from the figure,
The corrosion weight loss amount of cladding layer is the 1/6-1/4 of substrate；As WC particle increases, the weight loss of H13+30%WC cladding layer is minimum,
Salt spray corrosion resistance highest.This is because the carbide more than the quantity that crystal boundary is formed, reduces the corrosion such as Na and Cl ion Jie
The infiltration lane of matter prevents corrosive medium to penetrate into cladding layer.
It is any to be familiar with although the present invention is disclosed as above with embodiment, its protection scope being not intended to limit the invention
The technical staff of this technology should belong to guarantor of the invention in made change without departing from the spirit and scope of the invention
Protect range.
Claims (7)
1. a kind of micro-nano granules enhance wear-resistant corrosion-resistant laser cladding layer, which is characterized in that by iron-based metal powder and
The WC particle made an addition in iron-based metal powder is prepared, wherein the quality hundred of the WC particle added in iron-based metal powder
Score is 10%-30%, and iron-based metal powder is mainly made of C, Fe, Cr, Si, Mn, Mo and V.
2. micro-nano granules according to claim 1 enhance wear-resistant corrosion-resistant laser cladding layer, which is characterized in that iron-based
Metal powder is 0.43%C, 90.81%Fe, 4.79%Cr, 1.17%Si, 0.48%Mn, 1.38%Mo and 0.94%V by mass percent
It constitutes.
3. micro-nano granules according to claim 1 enhance wear-resistant corrosion-resistant laser cladding layer, which is characterized in that iron-based
The granularity of metal powder is 44-104 μm, and the granularity of WC particle and the granularity of iron-based metal powder are consistent.
4. micro-nano granules according to claim 1 enhance wear-resistant corrosion-resistant laser cladding layer, which is characterized in that described
Laser cladding layer with a thickness of 3mm.
5. a kind of system for enhancing wear-resistant corrosion-resistant laser cladding layer such as micro-nano granules of any of claims 1-4
Preparation Method, which comprises the following steps:
1) iron-based metal powder and WC particle powder are weighed, sieve simultaneously mechanical mixture, the final granularity that obtains is in 44-
104 μm of composite powder；
2) substrate surface is pre-processed；
3) in the protection of inert gas, composite powder cladding is obtained micro-nano in substrate surface using laser melting coating mode
Particle enhances wear-resistant corrosion-resistant laser cladding layer.
6. micro-nano granules according to claim 5 enhance the preparation method of wear-resistant corrosion-resistant laser cladding layer, special
Sign is, the concrete operations of step 2 are as follows: polished by sand paper substrate surface, make 0.2 μm of surface roughness Ra, so
It is cleaned again with acetone afterwards.
7. micro-nano granules according to claim 5 enhance the preparation method of wear-resistant corrosion-resistant laser cladding layer, special
Sign is, in step 3) by the way of laser melting coating by composite powder cladding during substrate surface, the power of laser
For 800W, laser scanning speed 300mm/min, powder sending quantity 18g/min, the diameter of the formed hot spot of laser is 3mm.
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Cited By (10)
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| CN110878413A (en) * | 2019-11-21 | 2020-03-13 | 西安理工大学 | High-hardness iron-based powder for ultrahigh-speed laser cladding and preparation method thereof |
| CN113373440A (en) * | 2021-05-31 | 2021-09-10 | 芜湖舍达激光科技有限公司 | Laser cladding powder for preparing hard strengthening layer on surface of zinc pot roller shaft sleeve |
| CN113373439A (en) * | 2021-05-28 | 2021-09-10 | 西安科技大学 | Composite coating for improving surface wear resistance of 35CrMoV steel and preparation method thereof |
| CN114000141A (en) * | 2021-09-18 | 2022-02-01 | 华电电力科学研究院有限公司 | High-strength and high-toughness water drop erosion-resistant laser cladding layer for turbine blade and preparation method thereof |
| CN114045484A (en) * | 2021-10-26 | 2022-02-15 | 矿冶科技集团有限公司 | Multi-scale ceramic particle coupling enhanced laser cladding iron-based wear-resistant coating and preparation method thereof |
| CN114406283A (en) * | 2022-01-27 | 2022-04-29 | 恒普(宁波)激光科技有限公司 | Additional composite particle reinforced material and preparation method thereof |
| CN114517294A (en) * | 2022-01-28 | 2022-05-20 | 营口裕隆光电科技有限公司 | Metallurgical powder for repairing 80CrNi3W cold roll by laser cladding |
| CN114517295A (en) * | 2022-01-28 | 2022-05-20 | 营口裕隆光电科技有限公司 | SiC enhanced laser cladding powder for surface repair of 60CrMoV cold roll |
| CN114672802A (en) * | 2022-03-31 | 2022-06-28 | 合肥工业大学 | Preparation method of nano Si modified WC/MoFeCrTiW high-entropy alloy composite cladding layer |
| CN114985728A (en) * | 2022-06-09 | 2022-09-02 | 海南大学 | Ceramic/iron-based composite coating, carbon steel-based composite material and preparation method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878413A (en) * | 2019-11-21 | 2020-03-13 | 西安理工大学 | High-hardness iron-based powder for ultrahigh-speed laser cladding and preparation method thereof |
| CN113373439A (en) * | 2021-05-28 | 2021-09-10 | 西安科技大学 | Composite coating for improving surface wear resistance of 35CrMoV steel and preparation method thereof |
| CN113373439B (en) * | 2021-05-28 | 2022-12-13 | 西安科技大学 | Composite coating for improving surface wear resistance of 35CrMoV steel and preparation method thereof |
| CN113373440A (en) * | 2021-05-31 | 2021-09-10 | 芜湖舍达激光科技有限公司 | Laser cladding powder for preparing hard strengthening layer on surface of zinc pot roller shaft sleeve |
| CN114000141A (en) * | 2021-09-18 | 2022-02-01 | 华电电力科学研究院有限公司 | High-strength and high-toughness water drop erosion-resistant laser cladding layer for turbine blade and preparation method thereof |
| CN114045484B (en) * | 2021-10-26 | 2022-10-28 | 矿冶科技集团有限公司 | Multi-scale ceramic particle coupling enhanced laser cladding iron-based wear-resistant coating and preparation method thereof |
| CN114045484A (en) * | 2021-10-26 | 2022-02-15 | 矿冶科技集团有限公司 | Multi-scale ceramic particle coupling enhanced laser cladding iron-based wear-resistant coating and preparation method thereof |
| CN114406283A (en) * | 2022-01-27 | 2022-04-29 | 恒普(宁波)激光科技有限公司 | Additional composite particle reinforced material and preparation method thereof |
| CN114406283B (en) * | 2022-01-27 | 2024-04-02 | 恒普(宁波)激光科技有限公司 | Externally added composite particle reinforced material and preparation method thereof |
| CN114517294A (en) * | 2022-01-28 | 2022-05-20 | 营口裕隆光电科技有限公司 | Metallurgical powder for repairing 80CrNi3W cold roll by laser cladding |
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| CN114672802B (en) * | 2022-03-31 | 2023-11-03 | 合肥工业大学 | Preparation method of nano Si modified WC/MoFeCrTiW high-entropy alloy composite cladding layer |
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