CN114369823B - Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof - Google Patents
Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof Download PDFInfo
- Publication number
- CN114369823B CN114369823B CN202210038445.3A CN202210038445A CN114369823B CN 114369823 B CN114369823 B CN 114369823B CN 202210038445 A CN202210038445 A CN 202210038445A CN 114369823 B CN114369823 B CN 114369823B
- Authority
- CN
- China
- Prior art keywords
- coating material
- nicofecrsialmozr
- entropy alloy
- powder
- laser cladding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 68
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000004372 laser cladding Methods 0.000 title claims abstract description 40
- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- 238000000576 coating method Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 68
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 30
- 238000005253 cladding Methods 0.000 claims abstract description 21
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 11
- 230000001276 controlling effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000005275 alloying Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 229910001325 element alloy Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- C23C24/106—Coating with metal alloys or metal elements only
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C16/00—Alloys based on zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
Abstract
The invention belongs to the technical field of high-entropy alloy design and manufacture, and particularly relates to a laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and a preparation method thereof, wherein the coating material comprises a certain proportion of metal elements Ni, co, fe, cr, al, mo, zr and nonmetal elements Si, wherein the mole ratio of each element of the metal elements Ni, co, fe, cr, al, mo is controlled to be 11% -26%, the mole ratio of the metal elements Zr is controlled to be 1% -26%, and the mole ratio of nonmetal powder Si is controlled to be 11% -26%. The high-entropy alloy cladding layer prepared by the method is added with metal powder Zr, and a NiCoFeCrSiAlMoZr multi-element alloy system is formed through high-temperature alloying reaction of a laser melting pool, the proportion of FCC and BCC phases is controlled by controlling the mass fraction of Zr element in the original components, so that the mechanical performance indexes such as the hardness of the cladding layer are regulated and controlled, and the structure and the performance of the cladding layer are simple and controllable while the excellent comprehensive performance is ensured.
Description
Technical Field
The invention belongs to the technical field of high-entropy alloy design and manufacture, and particularly relates to a laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and a preparation method thereof.
Background
The multi-principal element high-entropy alloy is a novel alloy material with great application potential which is rapidly developed in recent years, and the alloy can inhibit the generation of brittle intermetallic compounds in traditional metals due to the mixed entropy effect of five or more elements, so that FCC or BCC phases with single structures are obtained. Compared with the conventional single-principal-element FCC or BCC alloy, the multi-principal-element high-entropy alloy has the advantages that a plurality of different types of atoms are mixed, a large amount of lattice distortion is generated, a remarkable strengthening effect is brought, and the mechanical properties of materials such as strength, hardness and the like are remarkably improved. The laser cladding technology is a processing technology which is commonly used in the surface modification of the metal material at present. The multi-principal element metal powder is melted by a laser heat source, and after solidification, a high-entropy alloy coating with higher hardness and strength can be generated on the surface of a conventional low-carbon steel material and the like, so that the comprehensive performances of wear resistance, toughness, corrosion resistance, high-temperature oxidation resistance and the like of the material are improved, the service life of the material is prolonged, and higher economic benefit is generated.
High entropy alloys inhibit the growth of brittle intermetallic compounds due to the significantly high entropy effect produced by the multi-component mixing, typically containing only a single FCC or BCC phase structure, or both. However, FCC phase and BCC phase have different mechanical properties, and BCC phase with high hardness has relatively poor toughness, while FCC phase has lower hardness but relatively good toughness. Therefore, a method for easily regulating and controlling the multi-principal-element high-entropy alloy needs to be found through material design in the laser cladding high-entropy alloy coating, and a composite coating with better hardness and toughness matching is obtained.
Patent document publication No. CN103290404a discloses a high-entropy alloy powder for laser cladding, which is added with Al element to improve the performance of solid solution, and a high-entropy alloy powder having FeCoNiCrMnSiAl series is prepared.
Patent document with publication number of CN104841930A discloses high-entropy alloy powder for laser 3D printing, which is mainly composed of NiCoCrTiV alloy powder, and the performance of high-entropy alloy solid solution is improved by adding Ti and V elements.
The high-entropy alloy prepared by the method does not provide a method for definitely regulating and controlling the FCC or BCC phase structure, so that the comprehensive properties such as toughness and wear resistance of the alloy are improved.
Disclosure of Invention
The invention aims to overcome at least one of the problems in the prior art and provide a laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and a preparation method thereof.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:
a high-entropy alloy coating material for laser cladding NiCoFeCrSiAlMoZr comprises a metal element Ni, co, fe, cr, al, mo, zr and a nonmetal element Si in a certain proportion, wherein the mole ratio of each element of the metal element Ni, co, fe, cr, al, mo is controlled to be 11-26%, the mole ratio of the metal element Zr is controlled to be 1-26%, and the mole ratio of nonmetal powder Si is controlled to be 11-26%.
Further, in the NiCoFeCrSiAlMoZr high-entropy alloy coating material, the raw material of the metal element Ni, co, fe, cr, al, mo is powder, the granularity is 350-450 meshes, and the purity is more than or equal to 99.8%.
Further, in the NiCoFeCrSiAlMoZr high-entropy alloy coating material, the raw material of the metal element Zr is powder, the granularity is 400-500 meshes, and the purity is more than or equal to 99.6%.
Further, in the NiCoFeCrSiAlMoZr high-entropy alloy coating material, the raw material of the nonmetal powder Si is powder, the granularity is 350-450 meshes, and the purity is more than or equal to 99.9%.
Further, in the NiCoFeCrSiAlMoZr high-entropy alloy coating material, the ratio of FCC and BCC phases of the coating material is controlled by controlling the mole ratio of Zr element in the original components, so that the mechanical property index of the cladding layer is regulated and controlled.
Further, the preparation method of the NiCoFeCrSiAlMoZr high-entropy alloy coating material by laser cladding comprises the following steps:
1) Weighing the raw material components according to the proportion, and mechanically stirring and mixing for 20-60min to ensure that the powder is uniformly mixed with each other to obtain mixed powder;
2) And uniformly presetting the mixed powder on the surface of the treated matrix, wherein the preset thickness is 0.5-2mm, and performing laser cladding after fully drying to obtain the required laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material.
Further, in the preparation method of the NiCoFeCrSiAlMoZr high-entropy alloy coating material by laser cladding, in the step 2), the preset thickness is 1mm.
Further, in the preparation method of the NiCoFeCrSiAlMoZr high-entropy alloy coating material by laser cladding, in the step 2), the substrate material is Q235 steel.
Further, in the preparation method of the NiCoFeCrSiAlMoZr high-entropy alloy coating material by laser cladding, in the step 2), the substrate is processed in the following manner: cutting into square blocks, polishing and cleaning the surface of the square blocks to remove rust and greasy dirt, and cleaning the square blocks with alcohol.
Further, in the preparation method of the NiCoFeCrSiAlMoZr high-entropy alloy coating material by laser cladding, in the step 2), the laser cladding adopts an optical fiber coupling semiconductor laser, and main technological parameters comprise: the laser power is 1.6-4.5 kW, the laser scanning speed is 2.0-12.0 mm/s, the spot size diameter is 5mm, the focal length is 140mm, and the defocus amount is +/-6 mm; the cladding process adopts argon protection with the purity of 99.9 percent, and the gas flow is 16-32L/min.
The beneficial effects of the invention are as follows:
1. the high-entropy alloy cladding layer prepared by the method is added with metal powder Zr, and a NiCoFeCrSiAlMoZr multi-element alloy system is formed through high-temperature alloying reaction of a laser melting pool, and the addition of Zr element further enhances the solid solution strengthening effect of the alloy and simultaneously inhibits FCC and BCC phase separation in the solidification process.
2. According to the invention, by introducing Mo element with a certain content, the effects of improving the corrosion resistance and the high-temperature abrasion resistance of the cladding high-entropy alloy are achieved.
3. The high-entropy alloy designed by the invention can control the proportion of FCC and BCC phases by controlling the mass fraction of Zr element in the original components, thereby regulating and controlling the mechanical performance indexes such as hardness of the cladding layer, ensuring excellent comprehensive performance and simultaneously enabling the structure and performance of the cladding layer to be simple and controllable.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a surface topography diagram of a laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material prepared in example 1 of the invention;
FIG. 2 is a microstructure of a laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material prepared in example 1 of the present invention;
FIG. 3 is an XRD pattern of the laser cladding NiCoFeCrSiAlMoZr high entropy alloy coating materials prepared in example 1 and example 4 of the present invention;
FIG. 4 is a graph showing the hardness comparison of the laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating materials prepared in examples 1 to 4 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Specific embodiments of the invention are as follows:
example 1
(1) The selected materials comprise metal simple substance powder Ni, co, fe, cr, mo, al, nonmetal powder Si and additional metal powder Zr. First, ni, co, fe, cr, si, mo, al powder with granularity of 400 meshes and purity of 99.8 percent is uniformly mixed. Wherein the molar ratio of Ni, co, fe, cr, si, mo, al is 1:1:1:1:1:1:1. the metal element powder is weighed by an analytical balance, the mass of the simple substance powder is calculated according to the molar ratio and the molar mass, and the total mass of the mixed powder is 30g. Uniformly mixing the above powder, adding Zr with mole fraction of 2.8%, purity of 99.9%, and granularity of 450 mesh to obtain NiCoFeCrSiAlMoZr 0.2 And (3) compounding powder.
(2) The component powders are weighed and mixed according to the designed molar ratio, and then are mechanically stirred and mixed for more than 20 minutes, so that the metal powders are uniformly mixed;
(3) Q235 steel is selected as a matrix material, the matrix material is cut into 10cm multiplied by 1cm, and surface oxides, greasy dirt and the like are removed by mechanical polishing.
(4) And mixing the alloy powder obtained after stirring and mixing with alcohol, uniformly prefabricating the alloy powder on the surface of the treated Q235 steel matrix to form a preset layer with the thickness of 1.0mm, and drying for later use.
(5) The technological parameters of laser cladding are as follows: laser power 2400W, spot size diameter 5mm, laser scanning speed 3.0mm/s, defocus amount 0mm. Argon with the purity of 99.99% is adopted as the shielding gas, the flow is 18L/min, and the cladding layer is naturally cooled to the room temperature after laser cladding.
(6) Cutting a metallographic specimen by cladding alloy, and checking metallographic structure and hardness after aqua regia corrosion
The alloy of this example has an average hardness of up to 562hv and an xrd test phase composition of FCC face-centered cubic + BCC body-centered cubic.
Example 2
(1) The selected materials comprise metal simple substance powder Ni, co, fe, cr, mo, al, nonmetal powder Si and additional metal powder Zr. First, ni, co, fe, cr, si, mo, al powder with granularity of 400 meshes and purity of 99.8 percent is uniformly mixed. Wherein the molar ratio of Ni, co, fe, cr, si, mo, al is 1:1:1:1:1:1:1. the metal element powder is weighed by an analytical balance, the mass of the simple substance powder is calculated according to the molar ratio and the molar mass, and the total mass of the mixed powder is 30g. Mixing the above powders uniformly, adding 6.7% mole fraction Zr, 99.9% purity, and 450 mesh granularity to obtain NiCoFeCrSiAlMoZr 0.5 And (3) compounding powder.
(2) The component powders are weighed and mixed according to the designed molar ratio, and then are mechanically stirred and mixed for more than 20 minutes, so that the metal powders are uniformly mixed;
(3) Q235 steel is selected as a matrix material, the matrix material is cut into 10cm multiplied by 1cm, and surface oxides, greasy dirt and the like are removed by mechanical polishing.
(4) And mixing the alloy powder obtained after stirring and mixing with alcohol, uniformly prefabricating the alloy powder on the surface of the treated Q235 steel matrix to form a preset layer with the thickness of 1.0mm, and drying for later use.
(5) The technological parameters of laser cladding are as follows: laser power 2800W, spot size diameter 5mm, laser scanning speed 4.0mm/s, defocus amount 0mm. Argon with the purity of 99.99% is adopted as the shielding gas, the flow is 18L/min, and the cladding layer is naturally cooled to the room temperature after laser cladding.
(6) And cutting a metallographic specimen by the cladding alloy, and checking metallographic structure and hardness after the corrosion of aqua regia. The alloy of this example has an average hardness of 4816HV and an XRD test phase composition of FCC face centered cubic+BCC body centered cubic.
Example 3
(1) The selected materials comprise metal simple substance powder Ni, co, fe, cr, mo, al, nonmetal powder Si and additional metal powder Zr. First, ni, co, fe, cr, si, mo, al powder with granularity of 400 meshes and purity of 99.8 percent is uniformly mixed. Wherein the molar ratio of Ni, co, fe, cr, si, mo, al is 1:1:1:1:1:1:1. the metal element powder is weighed by an analytical balance, the mass of the simple substance powder is calculated according to the molar ratio and the molar mass, and the total mass of the mixed powder is 30g. Mixing the above powders, adding Zr with mole fraction of 12.5%, purity of 99.9%, and granularity of 450 mesh to obtain NiCoFeCrSiAlMoZr 1.0 And (3) compounding powder.
(2) The component powders are weighed and mixed according to the designed molar ratio, and then are mechanically stirred and mixed for more than 20 minutes, so that the metal powders are uniformly mixed;
(3) Q235 steel is selected as a matrix material, the matrix material is cut into 10cm multiplied by 1cm, and surface oxides, greasy dirt and the like are removed by mechanical polishing.
(4) And mixing the alloy powder obtained after stirring and mixing with alcohol, uniformly prefabricating the alloy powder on the surface of the treated Q235 steel matrix to form a preset layer with the thickness of 1.0mm, and drying for later use.
(5) The technological parameters of laser cladding are as follows: the laser power is 3200W, the diameter of the spot size is 5mm, the laser scanning speed is 5.0mm/s, and the defocusing amount is 0mm. Argon with the purity of 99.99% is adopted as the shielding gas, the flow is 26L/min, and the cladding layer is naturally cooled to the room temperature after laser cladding.
(6) And cutting a metallographic specimen by the cladding alloy, and checking metallographic structure and hardness after the corrosion of aqua regia. The cladding alloy of this example has an average hardness of 278hv and an xrd test phase composition of BCC body-centered cubic.
Example 4
(1) The selected materials comprise metal simple substance powder Ni, co, fe, cr, mo, al, nonmetal powder Si and additional metal powder Zr. First, ni, co, fe, cr, si, mo, al powder with granularity of 400 meshes and purity of 99.8 percent is uniformly mixed. Wherein the molar ratio of Ni, co, fe, cr, si, mo, al is 1:1:1:1:1:1:1. the metal element powder is weighed by an analytical balance, the mass of the simple substance powder is calculated according to the molar ratio and the molar mass, and the total mass of the mixed powder is 30g. Mixing the above powders, adding 22.2% of Zr with purity of 99.9% and granularity of 450 meshes to obtain NiCoFeCrSiAlMoZr 2.0 And (3) compounding powder.
(2) The component powders are weighed and mixed according to the designed molar ratio, and then are mechanically stirred and mixed for more than 20 minutes, so that the metal powders are uniformly mixed;
(3) Q235 steel is selected as a matrix material, the matrix material is cut into 10cm multiplied by 1cm, and surface oxides, greasy dirt and the like are removed by mechanical polishing.
(4) And mixing the alloy powder obtained after stirring and mixing with alcohol, uniformly prefabricating the alloy powder on the surface of the treated Q235 steel matrix to form a preset layer with the thickness of 1.0mm, and drying for later use.
(5) The technological parameters of laser cladding are as follows: laser power 4000W, spot size diameter 5mm, laser scanning speed 8.0mm/s, defocus amount 0mm. Argon with the purity of 99.99% is adopted as the shielding gas, the flow is 26L/min, and the cladding layer is naturally cooled to the room temperature after laser cladding.
(6) And cutting a metallographic specimen by the cladding alloy, and checking metallographic structure and hardness after the corrosion of aqua regia. The cladding alloy of this example has an average hardness of up to 399 hv and an xrd test phase composition of BCC body centered cubic.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. A laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material is characterized in that: the coating material consists of a metal element Ni, co, fe, cr, al, mo, zr and a nonmetal element Si, wherein the molar ratio of Ni, co, fe, cr, si, mo, al is 1:1:1:1:1:1:1, wherein the molar ratio of each element of metal element Ni, co, fe, cr, al, mo is controlled to be 11% -26%, the molar ratio of metal element Zr is controlled to be 1% -26%, and the molar ratio of nonmetal powder Si is controlled to be 11% -26%;
the preparation method of the coating material comprises the following steps:
1) Weighing the raw material components according to the proportion, and mechanically stirring and mixing for 20-60min to ensure that the powder is uniformly mixed with each other to obtain mixed powder;
2) Uniformly presetting the mixed powder on the surface of a treated substrate, wherein the preset thickness is 0.5-2mm, and performing laser cladding after fully drying to obtain the required laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material; the coating material controls the proportion of FCC and BCC phases by controlling the mole ratio of Zr element in the original components, thereby regulating and controlling the mechanical property index of the cladding layer.
2. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: the metal element Ni, co, fe, cr, al, mo is powder, the granularity is 350-450 meshes, and the purity is more than or equal to 99.8%.
3. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: the raw material of the metal element Zr is powder, the granularity is 400-500 meshes, and the purity is more than or equal to 99.6 percent.
4. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: the raw material of the nonmetallic powder Si is powder, the granularity is 350-450 meshes, and the purity is more than or equal to 99.8 percent.
5. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: in step 2), the preset thickness is 1mm.
6. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: in the step 2), the substrate material is Q235 steel.
7. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: in the step 2), the substrate is processed in the following manner: cutting into square blocks, polishing and cleaning the surface of the square blocks to remove rust and greasy dirt, and cleaning the square blocks with alcohol.
8. The laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material according to claim 1, wherein: in the step 2), the laser cladding adopts an optical fiber coupling semiconductor laser, and main technological parameters comprise: the laser power is 1.6-4.5 kW, the laser scanning speed is 2.0-12.0 mm/s, the spot size diameter is 5mm, the focal length is 140mm, and the defocus amount is +/-6 mm; the cladding process adopts argon protection with the purity of 99.9 percent, and the gas flow is 16-32L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210038445.3A CN114369823B (en) | 2022-01-13 | 2022-01-13 | Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210038445.3A CN114369823B (en) | 2022-01-13 | 2022-01-13 | Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114369823A CN114369823A (en) | 2022-04-19 |
| CN114369823B true CN114369823B (en) | 2023-12-26 |
Family
ID=81143583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210038445.3A Active CN114369823B (en) | 2022-01-13 | 2022-01-13 | Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114369823B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121801B (en) * | 2022-06-15 | 2023-06-23 | 中国人民解放军陆军装甲兵学院 | Laser additive repairing method for iron-based material damaged part and repairing powder adopted by same |
| CN117070934B (en) * | 2023-08-22 | 2024-03-12 | 安徽工业大学 | High-entropy alloy coating with wide hardness gradient and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252495A (en) * | 2013-05-03 | 2013-08-21 | 中国人民解放军装甲兵工程学院 | Fabrication method of high-entropy alloy coating containing amorphous nanocrystalline |
| CN104911581A (en) * | 2015-04-09 | 2015-09-16 | 安徽工业大学 | Cu-containing high-entropy alloy coating with liquid phase separation tissue and preparation method thereof |
| CN107685184A (en) * | 2016-08-04 | 2018-02-13 | 本田技研工业株式会社 | More material components and its manufacture method |
| CN110129649A (en) * | 2019-06-19 | 2019-08-16 | 辽宁科技大学 | A kind of preparation method of high entropy alloy coating powder and nanocrystalline high entropy alloy coating |
| CN112663049A (en) * | 2020-12-04 | 2021-04-16 | 安徽工业大学 | High-temperature-wear-resistant carbide composite high-entropy alloy and laser cladding preparation method thereof |
| CN112853347A (en) * | 2021-01-12 | 2021-05-28 | 安徽工业大学 | Method for preventing Cr and Al-containing high-entropy alloy coating from being oxidized by adding Si |
| CN112899549A (en) * | 2021-01-25 | 2021-06-04 | 成都先进金属材料产业技术研究院股份有限公司 | High-entropy alloy powder for 3D printing and preparation method and application thereof |
-
2022
- 2022-01-13 CN CN202210038445.3A patent/CN114369823B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252495A (en) * | 2013-05-03 | 2013-08-21 | 中国人民解放军装甲兵工程学院 | Fabrication method of high-entropy alloy coating containing amorphous nanocrystalline |
| CN104911581A (en) * | 2015-04-09 | 2015-09-16 | 安徽工业大学 | Cu-containing high-entropy alloy coating with liquid phase separation tissue and preparation method thereof |
| CN107685184A (en) * | 2016-08-04 | 2018-02-13 | 本田技研工业株式会社 | More material components and its manufacture method |
| CN110129649A (en) * | 2019-06-19 | 2019-08-16 | 辽宁科技大学 | A kind of preparation method of high entropy alloy coating powder and nanocrystalline high entropy alloy coating |
| CN112663049A (en) * | 2020-12-04 | 2021-04-16 | 安徽工业大学 | High-temperature-wear-resistant carbide composite high-entropy alloy and laser cladding preparation method thereof |
| CN112853347A (en) * | 2021-01-12 | 2021-05-28 | 安徽工业大学 | Method for preventing Cr and Al-containing high-entropy alloy coating from being oxidized by adding Si |
| CN112899549A (en) * | 2021-01-25 | 2021-06-04 | 成都先进金属材料产业技术研究院股份有限公司 | High-entropy alloy powder for 3D printing and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| Effect of Zr on phase separation, mechanical and corrosion behavior of heterogeneous CoCrFeNiZrx high-entropy alloy;Wu Qi等;《Journal of Materials Science & Technology》;第第109卷卷;摘要部分 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114369823A (en) | 2022-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1256004C (en) | Iron-aluminium metal compound used as stratie | |
| CN114369823B (en) | Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof | |
| CN110344047B (en) | In-situ synthesis low-pressure cold spraying CuNiCoFeCrAl2.8Preparation method of high-entropy alloy coating | |
| US11850659B2 (en) | High entropy alloy powder for laser cladding and application method thereof | |
| CA2888692C (en) | Ti-included oxide dispersion strengthened copper alloy and method for manufacturing dispersed copper | |
| KR102273787B1 (en) | Complex copper alloy comprising high entropy alloy and method for manufacturing the same | |
| CN112663049A (en) | High-temperature-wear-resistant carbide composite high-entropy alloy and laser cladding preparation method thereof | |
| CN113564577B (en) | Coating of copper-based surface intermetallic compound reinforced gradient high-entropy alloy and preparation method thereof | |
| US6066191A (en) | Hard molybdenum alloy, wear resistant alloy and method for manufacturing the same | |
| GB2311997A (en) | Oxide-dispersed powder metallurgically produced alloys. | |
| CN112831710A (en) | Superhard wear-resistant high-entropy alloy and preparation method thereof | |
| CN114525429B (en) | High-strength titanium alloy and additive preparation method thereof | |
| CN114807718A (en) | Excellent thermal stability coherent nanophase reinforced medium entropy alloy and preparation method thereof | |
| CN111101043B (en) | CrMoVNbAl high-entropy alloy manufactured by laser additive manufacturing and forming process thereof | |
| CN114393341B (en) | High-entropy alloy reinforced copper-based wear-resistant corrosion-resistant coating and preparation method thereof | |
| CN116275010A (en) | In-situ nitride reinforced 3D printing nickel-based superalloy powder | |
| CN112725681B (en) | Iron-cobalt-nickel-manganese-copper high-entropy cast iron and preparation method and application thereof | |
| CN1401804A (en) | Low cost heat-resistant magnesium alloy | |
| CN112593161B (en) | High-strength Sc composite nano oxide dispersion strengthening Fe-based alloy and preparation method thereof | |
| CN116479303B (en) | Al-Co-Cr-Fe-Ni-Ta high-strength high-entropy alloy applied in high-temperature environment and preparation method thereof | |
| CN116837375A (en) | Quaternary refractory high-entropy alloy coating and its preparing process | |
| CN114871446B (en) | Method for regulating and controlling performance of alloy steel part manufactured by laser additive | |
| CN115821110B (en) | C70350 alloy for establishing ingredient cooperative change relation based on cluster method | |
| CN117444234A (en) | Laser additive manufacturing method for improving mechanical properties of multi-principal element alloy of FCC (fluid catalytic cracking) structure | |
| CN117568796A (en) | Laser cladding in-situ generated fibrous reinforced phase reinforced nickel-based composite coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |