CN113416952A - TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and preparation method thereof - Google Patents
TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and preparation method thereof Download PDFInfo
- Publication number
- CN113416952A CN113416952A CN202110689410.1A CN202110689410A CN113416952A CN 113416952 A CN113416952 A CN 113416952A CN 202110689410 A CN202110689410 A CN 202110689410A CN 113416952 A CN113416952 A CN 113416952A
- Authority
- CN
- China
- Prior art keywords
- alloy powder
- percent
- metal
- powder
- tic
- 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.)
- Pending
Links
Images
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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
Abstract
The invention discloses TiC reinforced metal-based composite alloy powder for laser cladding of nodular iron castings and a preparation method thereof, and relates to the technical field of remanufacturing of iron castings. According to the TiC reinforced metal-based composite alloy powder for laser cladding of nodular iron castings and the preparation method thereof, Co is used as a basic component of the metal-based alloy powder, the alloy powder consisting of Ni, C, Si, Cr, Fe and W elements is added, and the mass percentage of doped Ti is 3.0-10.0%, so that the powder can be well cladded on a nodular iron casting matrix and has no defects such as cracks, air holes and the like; the doped Ti and the metal-based alloy powder are uniformly mixed by using a planetary ball mill, laser cladding is carried out by adopting a synchronous powder feeding mode to obtain a well-formed laser cladding layer, and a cladding remanufacturing matrix is nodular cast iron.
Description
Technical Field
The invention relates to the technical field of iron casting remanufacturing, in particular to TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and a preparation method thereof.
Background
The nodular cast iron has high strength, certain toughness and plasticity, and simultaneously has the characteristics of wear resistance, shock absorption, easy cutting, insensitivity to gaps and the like, and can replace carbon steel and alloy steel to manufacture parts with complex stress and high requirements on strength, toughness and wear resistance, such as traction wheels, crankshafts, cylinder sleeves, rollers and the like, so the nodular cast iron is widely applied to the industry. The ductile iron castings are often worn and lose efficacy in harsh use environments such as high temperature and severe wear, so that the ductile iron castings are remanufactured from damages such as wear, corrosion and fatigue failure under different working conditions, the ductile iron castings can be recycled, and the remanufactured ductile iron castings have higher performance than the original parts. The traditional remanufacturing technology such as thermal spraying, thermal spray welding, surfacing and the like has complex process, low efficiency and high energy consumption. Compared with the traditional surface modification technology, the laser cladding technology has many advantages: the laser energy is highly concentrated, and the heated area of the workpiece is small and the deformation is small; the cladding layer and the substrate are metallurgically bonded, and the bonding strength is high; the method has great advantages for remanufacturing the ductile iron castings.
At present, the range of laser cladding materials is quite wide, and self-fluxing alloy powder cladded on the surface of cast iron mainly comprises cobalt-based, nickel-based and iron-based. The high temperature resistance of the iron-based alloy is poor; the thermal expansion coefficient difference between the nickel-based alloy and the nodular cast iron matrix is large, thermal stress and phase change stress are easily generated under the action of high-energy laser beams, and cracks are easily generated during cladding; the cladding layer prepared from the cobalt-based alloy powder is high-temperature resistant, good in wear resistance, low in hardness and poor in capability of resisting a hard object from being pressed into the surface of the cladding layer; the performance improvement of the cladding layer prepared from the pure metal-based alloy powder is limited, and the strict service condition of the iron casting cannot be met. The carbide ceramic phase reinforced metal matrix composite coating has good thermal stability, high hardness, high strength and excellent high temperature resistance and wear resistance. The performance of the cladding layer can be effectively improved by selectively adding the carbide reinforced metal base, the problem of compatibility of the added carbide and a base material is considered, pure metal Ti with density and thermal expansion coefficient more matched with those of metal base alloy powder is selected, and the pure metal Ti is selected as doping powder by utilizing the characteristic that Ti is easy to react with C in situ to generate a TiC ceramic reinforced phase. Therefore, the titanium-doped metal-based alloy composite powder can be popularized and used for laser cladding remanufacturing of ductile iron castings.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the defect that a cladding material with excellent performance is lacked during laser cladding of nodular iron castings in the prior art, the invention provides TiC reinforced metal-based composite alloy powder for laser cladding of the nodular iron castings and a preparation method thereof.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a TiC reinforced metal-based composite alloy powder for laser cladding of nodular iron castings comprises the following components in percentage by mass: 1.0-4.0% of Ni, 0.6-1.0% of C, 1.1-1.5% of Si, 28.0-30.0% of Cr, 1.0-4.0% of Fe, 4.0-6.0% of W, and the balance of Co, wherein the amount of doped Ti is as follows: 3.0% -10.0%; the metal-based alloy powder takes Co as a basic component, and is added with alloy powder consisting of Ni, C, Si, Cr, Fe and W elements, and the mass percent of Ti is 3.0-10.0%, so that the powder can be well coated on a nodular cast iron matrix, and has no defects of cracks, air holes and the like.
According to a further technical scheme, the metal-based alloy powder comprises the following components in percentage by mass: 2.0% of Ni, 0.8% of C, 1.2% of Si, 28.0% of Cr, 2.0% of Fe, 4.0% of W and the balance of Co, wherein the mass percent of doped Ti is 3.0%.
According to a further technical scheme, the metal-based alloy powder comprises the following components in percentage by mass: 3.0 percent of Ni, 1.0 percent of C, 1.4 percent of Si, 30.0 percent of Cr, 3.0 percent of Fe, 6.0 percent of W and the balance of Co, wherein the mass percent of doped Ti is 5.0 percent.
According to a further technical scheme, the metal-based alloy powder comprises the following components in percentage by mass: 3.0 percent of Ni, 1.0 percent of C, 1.4 percent of Si, 30.0 percent of Cr, 3.0 percent of Fe, 6.0 percent of W and the balance of Co, wherein the mass percent of doped Ti is 10.0 percent.
A preparation method of TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings comprises the following steps:
step one, mixing powder: uniformly mixing the doped Ti and the metal-based alloy powder by using a planetary ball mill, wherein the powder mixing time is 2 hours, the rotating speed is 250r/min, and the ball-to-material ratio is 2: 1;
step two, forming a cladding layer: and (2) utilizing an optical fiber coupling all-solid-state laser, simultaneously adopting lateral synchronous powder feeding equipment to feed the TiC reinforced metal-based composite alloy powder to the surface of the nodular iron casting to be clad, which is aligned to the laser spot, continuously cladding the surface of the nodular iron casting to form a cladding layer, and carrying out laser cladding by adopting a synchronous powder feeding mode to obtain the well-formed laser cladding layer.
According to a further technical scheme, in the step one, the metal-based alloy powder and the Ti powder are spherical, the particle sizes of the metal-based alloy powder and the Ti powder are 53-150 microns and 15-45 microns respectively, and the metal-based alloy powder and the Ti powder are spherical and have good flowability.
According to a further technical scheme, in the step two, the process parameters during laser cladding are as follows: the laser power is 1400-1600W, and the scanning speed is 100-140 mm/min, so as to prevent the scanning speed from being too low and the structure from being thick; the powder feeding speed is 4-6 g/min, so that good metallurgical bonding of the cladding layer and the substrate is ensured; the diameter of the light spot is 6mm, so that the lowest crack rate of the cladding layer is ensured, and the performance of the cladding layer is optimal; the lapping rate is 35 percent to ensure that the surface of the cladding layer is well formed.
According to the further technical scheme, the cladding remanufacturing base body is a nodular iron casting, and the cladding remanufacturing base body is specially designed for the nodular iron casting working under severe working conditions, so that the hardness and the high-temperature wear resistance of the cladding layer are greatly improved compared with those of the nodular iron casting.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) according to the TiC enhanced metal-based composite alloy powder for laser cladding of nodular iron castings and the preparation method thereof, Co is used as a basic component of the metal-based alloy powder, and the alloy powder consisting of Ni, C, Si, Cr, Fe and W elements is added, so that the powder can be well coated on a nodular iron casting matrix and has no defects of cracks, air holes and the like; the TiC reinforced metal-based composite alloy powder prepared from the elements is specially designed for the severe working environment of the nodular iron casting, a cladding layer after laser cladding remanufacturing and molding is in good metallurgical bonding with the nodular iron casting, and the hardness and the high-temperature wear resistance of the cladding layer are greatly improved compared with those of a matrix;
(2) according to the TiC enhanced metal-based composite alloy powder for laser cladding of nodular iron castings and the preparation method thereof, pure Ti powder with the mass percentage of 3.0-10.0% is added into the metal-based alloy powder, in-situ reaction is carried out in the laser cladding process to generate TiC ceramic phase hard particles, the structure of a cladding layer is refined, and the hardness and the high-temperature wear resistance of the cladding layer are improved;
(3) according to the TiC reinforced metal-based composite alloy powder for laser cladding of nodular iron castings and the preparation method thereof, the metal-based powder and the Ti powder are both spherical and have good fluidity, and a well-formed laser cladding layer is obtained by performing laser cladding in a synchronous powder feeding mode;
(4) according to the TiC reinforced metal-based composite alloy powder for laser cladding of the nodular iron castings and the preparation method thereof, the cladding remanufacturing matrix is the nodular iron castings, and the special design is carried out on the nodular iron castings working under severe working conditions, so that the hardness and the high-temperature wear resistance of the cladding layer are greatly improved compared with those of the nodular iron castings.
Drawings
FIG. 1 is a microscopic morphology of TiC-enhanced metal-based composite alloy powder of the present invention under a scanning electron microscope;
FIG. 2 is a macroscopic morphology view of the TiC-enhanced metal-based composite alloy powder after cladding;
FIG. 3 is a metallographic structure diagram of a cross section of a cladding layer;
FIG. 4 is a cross-sectional microhardness profile of a TiC enhanced metal-based composite coating of the present invention;
FIG. 5 is an SEM topography of the wear surface of the TiC enhanced metal matrix composite coating of the present invention.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
In the embodiment of the TiC reinforced metal-based composite alloy powder for laser cladding of nodular iron castings, as shown in fig. 3, the metal-based alloy powder comprises the following components in percentage by mass: 1.0-4.0% of Ni, 0.6-1.0% of C, 1.1-1.5% of Si, 28.0-30.0% of Cr, 1.0-4.0% of Fe, 4.0-6.0% of W, and the balance of Co, wherein the amount of doped Ti is as follows: 3.0% -10.0%; the metal-based alloy powder takes Co as a basic component, and is added with alloy powder consisting of Ni, C, Si, Cr, Fe and W elements, and the mass percent of Ti is 3.0-10.0%, so that the powder can be well coated on a nodular cast iron matrix, and has no defects of cracks, air holes and the like.
In the embodiment, a part of doped Ti reacts with C in situ in the laser cladding process to generate a TiC hard phase, so that the dispersion strengthening effect is generated, the tissue growth is inhibited, the tissue is refined, the hardness and the high-temperature wear resistance of a cladding layer are greatly improved, and a part of unreacted Ti also plays a role in sealing a gamma phase region, so that the gamma-Co is influenced to be separated out as a primary phase during rapid solidification, and the growth form of the gamma-Co is changed; the W element is added into the metal-based alloy powder to improve the high-temperature wear resistance of the cladding layer, and the W is dissolved in the face-centered cubic crystal of Co in a solid manner, so that the crystal lattice can be greatly distorted, the alloy matrix is obviously strengthened, and the high-temperature wear resistance and red hardness of the matrix are improved; a certain amount of Si element is added into the metal-based alloy powder, so that deoxidation can be realized, and slag which is low in melting point, low in viscosity and easy to float upwards is generated together and covers the surface of a cladding layer to prevent slag inclusion and air holes; the metal-based alloy powder is added with a certain amount of Fe and Ni elements, the Fe elements are close to the components of the nodular iron castings, the compatibility of the powder and a matrix can be improved, and the Ni elements can inhibit the diffusion of carbon elements in the interface area of the nodular iron castings to a cladding layer, so that the tendency of interface white cast generation is inhibited.
Example 2
The basic structure of the TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings in the embodiment is the same as that in embodiment 1, and the difference and improvement are as follows: the metal-based alloy powder comprises the following components in percentage by mass: 2.0% of Ni, 0.8% of C, 1.2% of Si, 28.0% of Cr, 2.0% of Fe, 4.0% of W and the balance of Co, wherein the mass percent of doped Ti is 3.0%.
Example 3
The basic structure of the TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings in the embodiment is the same as that in embodiment 2, and the difference and improvement are as follows: the metal-based alloy powder comprises the following components in percentage by mass: 3.0 percent of Ni, 1.0 percent of C, 1.4 percent of Si, 30.0 percent of Cr, 3.0 percent of Fe, 6.0 percent of W and the balance of Co, wherein the mass percent of doped Ti is 5.0 percent.
Example 4
The basic structure of the TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings in the embodiment is the same as that in embodiment 3, and the difference and improvement are as follows: the metal-based alloy powder comprises the following components in percentage by mass: 3.0 percent of Ni, 1.0 percent of C, 1.4 percent of Si, 30.0 percent of Cr, 3.0 percent of Fe, 6.0 percent of W and the balance of Co, wherein the mass percent of doped Ti is 10.0 percent.
Example 5
The basic structure of the preparation method of the TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings in the embodiment is the same as that in embodiment 4, and the difference and improvement lies in that: the method comprises the following steps:
step one, mixing powder: uniformly mixing the doped Ti and the metal-based alloy powder by using a planetary ball mill, wherein the powder mixing time is 2 hours, the rotating speed is 250r/min, and the ball-to-material ratio is 2: 1;
step two, forming a cladding layer: and (2) utilizing an optical fiber coupling all-solid-state laser, simultaneously adopting lateral synchronous powder feeding equipment to feed the TiC reinforced metal-based composite alloy powder to the surface of the nodular iron casting to be clad, which is aligned to the laser spot, continuously cladding the surface of the nodular iron casting to form a cladding layer, and carrying out laser cladding by adopting a synchronous powder feeding mode to obtain the well-formed laser cladding layer.
In the embodiment, fig. 1 is a microscopic morphology of TiC reinforced metal-based composite alloy powder of the present invention under a scanning electron microscope, in the first step, the metal-based alloy powder and the Ti powder are both spherical, particle sizes of the powders are 53 μm to 150 μm and 15 μm to 45 μm, respectively, and the metal-based powder and the Ti powder are both spherical and have good fluidity;
in the second step, the technological parameters during laser cladding are as follows: the laser power is 1400-1600W, and the scanning speed is 100-140 mm/min; the powder feeding speed is 4-6 g/min; the diameter of the light spot is 6 mm; the lapping rate is 35 percent; under the condition of controlling other parameters to be unchanged, the laser power is set to 1400-1600W, and the structure of the cladding layer tends to be more compact and uniformly distributed under the condition of relatively low laser power, the crystal grains are relatively fine, the structure is fine, the hardness of the cladding layer can be improved, the structure becomes coarse along with the further increase of the laser power and is not beneficial to the increase of the hardness, and the performance of the cladding layer is optimal when the laser power is 1400-1600W through experimental analysis; the laser scanning speed is another important factor influencing the performance of the cladding layer, and by controlling the laser scanning speed to be 100-140 mm/min, when other parameters are unchanged, the tissue is fine when the scanning speed is high, the time of beam irradiation on the surface of a sample is short, the laser energy absorbed by a coating material is less, and the tissue becomes coarse when the scanning speed is low. The method is mainly characterized in that in the laser cladding process, under the condition of higher scanning speed, the absorbed energy is less, the cooling speed is high, the convection time in a molten pool is short, and a large number of crystal nuclei solidify before growing up, so that the dendritic crystal structure is thinner, when the scanning speed is lower, the laser beam stays for a long time, the heat absorption is more, the solidification time of the molten pool is prolonged, the crystal nuclei have sufficient time to grow up, and the microstructure is in a coarse shape; by controlling the powder feeding speed to be 4-6 g/min, under the same process conditions, the powder feeding speed is higher, the light transmittance is smaller, so that the energy absorbed by the matrix is less, the depth of a molten pool is reduced, even the surface of the matrix cannot be melted, the cladding layer and the matrix cannot achieve good metallurgical bonding, cladding cannot be achieved, and the powder feeding speed is controlled to be 4-6 g/min in order to ensure good metallurgical bonding of the cladding layer and the matrix; the diameter of a light spot is controlled to be 6mm, when the laser power, the scanning speed and the powder feeding speed are fixed, the specific energy of laser is gradually reduced along with the increase of the diameter of the light spot, the crack rate of a cladding layer is gradually increased, and the cracking tendency is increased, but on the other hand, the dilution rate of the cladding layer is reduced by the increase of the diameter of the laser light spot, the hardness of the cladding layer is increased, the surface quality of the cladding layer is improved, the diameter of the light spot is controlled to be 6mm through experimental analysis, the crack rate of the obtained cladding layer is the lowest, and the performance of the cladding layer is the best; by controlling the overlapping rate to be 35%, a cladding layer with good metallurgical bonding is formed, the defects of loose inclusions and the like do not occur in the overlapping area, the height is consistent, when the overlapping rate is too small, the quality of the cladding layer is poor, holes are generated, the overlapping area is sunken, the surface height is inconsistent and rough, and in order to ensure that the surface of the cladding layer is well formed, the overlapping rate is controlled to be 35%.
Further, fig. 2 is a macro topography after the high-temperature wear-resistant alloy powder is cladded; FIG. 3 is a metallographic structure diagram of a cross section of a cladding layer; the cladding remanufacturing base body is nodular cast iron QT600-3, and the special design is carried out aiming at the nodular cast iron working under the harsh working condition, so that the hardness and the high-temperature wear resistance of the cladding layer are greatly improved compared with those of the nodular cast iron.
The section microhardness distribution of the TiC enhanced metal-based composite coating is shown in figure 4, CZ is a cladding layer area, the hardness basically decreases from the top to the bottom of the cladding layer, and the hardness is 540HV0.2～830HV0.2Change in between; the HAZ is a heat affected zone, and the hardness is increased, mainly because a large amount of high-carbon martensite structures appear in the heat affected zone, and the high-carbon martensite structures have higher hardness and strength; SUB is matrix region, hardness is 400HV0.2～450HV0.2. CladdingThe layer hardness is greatly improved compared with the base body.
The high-temperature wear resistance of the TiC reinforced metal-based composite coating is shown in the table 1, and the data is obtained by performing a 1-hour dry friction and wear test on the composite coating on a friction and wear testing machine under the conditions that the test load is 20N and the rotating speed is 364 r/min. The Ti with the doping mass fraction of 5% enables the high-temperature wear resistance of the cladding layer to be improved by more than one time.
TABLE 1 high-temp. antiwear performance of TiC reinforced metal-base composite coating
FIG. 5 is an SEM image of the wear surface of the TiC enhanced metal matrix composite coating. Fig. 5(a) is a wear surface SEM image of a friction wear test chart of a cladding layer not doped with Ti, in which a large amount of swarf is generated on the wear surface, and part of the block-shaped swarf adheres to the surface of the wear scar, and fig. 5(b) is a wear surface SEM image of a friction wear test chart of a cladding layer doped with Ti with a mass fraction of 5%, and the entire wear surface becomes significantly smoother, which indicates that the high-temperature wear resistance is improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (8)
1. A kind of nodular iron casting laser melts and covers and uses TiC enhancement metal matrix composite alloy powder, characterized by that: the metal-based alloy powder comprises the following components in percentage by mass: 1.0-4.0% of Ni, 0.6-1.0% of C, 1.1-1.5% of Si, 28.0-30.0% of Cr, 1.0-4.0% of Fe, 4.0-6.0% of W, and the balance of Co, wherein the amount of doped Ti is as follows: 3.0 to 10.0 percent.
2. The TiC-reinforced metal-based composite alloy powder for laser cladding of nodular iron castings according to claim 1, wherein: the metal-based alloy powder comprises the following components in percentage by mass: 2.0% of Ni, 0.8% of C, 1.2% of Si, 28.0% of Cr, 2.0% of Fe, 4.0% of W and the balance of Co, wherein the mass percent of doped Ti is 3.0%.
3. The TiC-reinforced metal-based composite alloy powder for laser cladding of nodular iron castings according to claim 1, wherein: the metal-based alloy powder comprises the following components in percentage by mass: 3.0 percent of Ni, 1.0 percent of C, 1.4 percent of Si, 30.0 percent of Cr, 3.0 percent of Fe, 6.0 percent of W and the balance of Co, wherein the mass percent of doped Ti is 5.0 percent.
4. The TiC-reinforced metal-based composite alloy powder for laser cladding of nodular iron castings according to claim 1, wherein: the metal-based alloy powder comprises the following components in percentage by mass: 3.0 percent of Ni, 1.0 percent of C, 1.4 percent of Si, 30.0 percent of Cr, 3.0 percent of Fe, 6.0 percent of W and the balance of Co, wherein the mass percent of doped Ti is 10.0 percent.
5. A method of preparing a TiC reinforced metal matrix composite alloy powder according to any of claims 1 to 4, characterised by comprising the steps of:
step one, mixing powder: uniformly mixing the doped Ti and the metal-based alloy powder by using a planetary ball mill, wherein the powder mixing time is 2 hours, the rotating speed is 250r/min, and the ball-to-material ratio is 2: 1;
step two, forming a cladding layer: and (3) utilizing an optical fiber coupling all-solid-state laser, and simultaneously adopting lateral synchronous powder feeding equipment to feed the TiC reinforced metal-based composite alloy powder to the surface of the nodular iron casting to be clad, which is aligned to the laser spot, so as to form a cladding layer on the surface of the nodular iron casting by continuous cladding.
6. The TiC-reinforced metal-based composite alloy powder for laser cladding of nodular iron castings according to claim 5, wherein: in the first step, the metal-based alloy powder and the Ti powder are both spherical, and the particle diameters of the powder are 53-150 microns and 15-45 microns respectively.
7. The method for preparing TiC reinforced metal-based composite alloy powder for laser cladding of nodular iron castings according to claim 5, wherein in the second step, the process parameters for laser cladding are as follows: the laser power is 1400-1600W, the scanning speed is 100-140 mm/min, the powder feeding speed is 4-6 g/min, the spot diameter is 6mm, and the lap joint rate is 35%.
8. The method for preparing TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings according to claim 5, wherein the method comprises the following steps: cladding remanufacturing matrix is a nodular iron casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110689410.1A CN113416952A (en) | 2021-06-22 | 2021-06-22 | TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110689410.1A CN113416952A (en) | 2021-06-22 | 2021-06-22 | TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113416952A true CN113416952A (en) | 2021-09-21 |
Family
ID=77789751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110689410.1A Pending CN113416952A (en) | 2021-06-22 | 2021-06-22 | TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113416952A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082962A (en) * | 2021-11-22 | 2022-02-25 | 国铭铸管股份有限公司 | Online repairing and annealing process for nodular cast pipe |
| CN114457332A (en) * | 2022-01-23 | 2022-05-10 | 南华大学 | Iron-based alloy powder special for repairing nodular iron castings and method |
| CN114908272A (en) * | 2022-06-08 | 2022-08-16 | 宁波镭速激光科技有限公司 | Nodular cast iron laser cladding powder |
| CN115613028A (en) * | 2022-07-06 | 2023-01-17 | 北京机科国创轻量化科学研究院有限公司 | Laser cladding alloy powder based on aluminum bronze alloy surface and laser cladding method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554705A (en) * | 2018-12-28 | 2019-04-02 | 沈阳航空航天大学 | A kind of laser melting coating TiC/ cobalt-base alloys composite coating microstructure and property regulation method |
-
2021
- 2021-06-22 CN CN202110689410.1A patent/CN113416952A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554705A (en) * | 2018-12-28 | 2019-04-02 | 沈阳航空航天大学 | A kind of laser melting coating TiC/ cobalt-base alloys composite coating microstructure and property regulation method |
Non-Patent Citations (1)
| Title |
|---|
| 李志远 等: ""Ti 对Co 基合金激光熔覆层组织与性能的影响"", 《中国激光》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082962A (en) * | 2021-11-22 | 2022-02-25 | 国铭铸管股份有限公司 | Online repairing and annealing process for nodular cast pipe |
| CN114082962B (en) * | 2021-11-22 | 2023-12-19 | 国铭铸管股份有限公司 | Online repairing and annealing process for spheroidal graphite cast tube |
| CN114457332A (en) * | 2022-01-23 | 2022-05-10 | 南华大学 | Iron-based alloy powder special for repairing nodular iron castings and method |
| CN114457332B (en) * | 2022-01-23 | 2023-11-24 | 南华大学 | Iron-based alloy powder special for repairing ductile iron castings and method |
| CN114908272A (en) * | 2022-06-08 | 2022-08-16 | 宁波镭速激光科技有限公司 | Nodular cast iron laser cladding powder |
| CN114908272B (en) * | 2022-06-08 | 2022-11-04 | 宁波镭速激光科技有限公司 | Nodular cast iron laser cladding powder |
| CN115613028A (en) * | 2022-07-06 | 2023-01-17 | 北京机科国创轻量化科学研究院有限公司 | Laser cladding alloy powder based on aluminum bronze alloy surface and laser cladding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113416952A (en) | TiC reinforced metal matrix composite alloy powder for laser cladding of nodular iron castings and preparation method thereof | |
| JP6896138B1 (en) | Abrasion- and corrosion-resistant iron-based alloy powder for laser cladding and its laser cladding layer | |
| CN102453901B (en) | Method for preparing WC hard alloy wear resistance area on petroleum drill rod surface | |
| CN108707894B (en) | Powder for laser cladding self-lubricating wear-resistant cobalt-based alloy and process method | |
| CN102453902B (en) | Method for preparing tungsten carbide hard alloy coating on surface of high-speed wire roller collar | |
| CN103233224B (en) | Method for preparing high-chromium wear-resistant alloy through laser cladding | |
| CN110157977A (en) | A kind of laser remanufacturing reparation iron(-)base powder and the preparation method and application thereof | |
| CN108866538B (en) | Laser cladding in-situ synthesis composite carbide (Ti, Nb) C reinforced Ni-based coating and preparation | |
| CN105081612B (en) | A kind of plasma arc surfacing alloy powder for hot-work die | |
| CN110344053B (en) | Alloy powder for high-strength bainitic steel laser repair and preparation method thereof | |
| CN104250801A (en) | Process for performing laser cladding on alloy coating with characteristics of wear resistance and heat resistance by hot rolling of seamless steel pipe | |
| Li et al. | Deep pit repairing of nodular cast iron by laser cladding NiCu/Fe-36Ni low-expansion composite alloy | |
| CN110438487A (en) | Wear-resistant corrosion-resistant laser cladding layer of a kind of micro-nano granules enhancing and preparation method thereof | |
| CN111575705A (en) | Preparation method of tungsten carbide reinforced nickel-based composite coating | |
| CN106480380A (en) | A kind of laser manufactures the iron(-)base powder of low-speed heave-load marine diesel engine piston annular groove | |
| CN108315733A (en) | Powder and preparation method used in a kind of laser melting coating aluminium bronze gradient coating | |
| CN103233221A (en) | Concrete pump vehicle wear plate surface ceramic powder clad layer and laser cladding method thereof | |
| CN114411056A (en) | Iron-based alloy powder, laser cladding coating and preparation method thereof | |
| CN114150203A (en) | Laser cladding in-situ self-generated high-entropy alloy gradient coating and preparation method thereof | |
| Yue et al. | Microstructure and mechanical properties of TiC/FeCrSiB coating by laser additive remanufacturing on shearer spiral blade | |
| CN103302286A (en) | Cobalt-based metal ceramic alloy powder exclusively used in laser cladding of turning tool | |
| Liu et al. | Microstructure and properties of Ni-based self-lubricating coatings by laser cladding/friction stir processing | |
| Kong et al. | The selection of laser beam diameter in directed energy deposition of austenitic stainless steel: A comprehensive assessment | |
| Wei et al. | Preparation of TA15 powder reinforced 45CrNiMoY alloy steel with high mechanical property by pre-laid laser cladding technology | |
| CN102465289B (en) | Method for preparing WC hard alloy wear resistant band on shell of logging device resistivity measuring instrument |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 243000 No. 4598, Cihu River Road, Cihu high tech Zone, Maanshan City, Anhui Province Applicant after: MAANSHAN Shenma Machinery Manufacturing Co.,Ltd. Address before: 243000 No. 4598, Cihu River Road, Cihu high tech Zone, Maanshan City, Anhui Province Applicant before: MAANSHAN SHENMA MACHINERY MANUFACTURING Co.,Ltd. |