CN106756994A - A kind of nickel-based composite pow-der of laser cladding coating and the method for prepares coating - Google Patents
A kind of nickel-based composite pow-der of laser cladding coating and the method for prepares coating Download PDFInfo
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- CN106756994A CN106756994A CN201611095500.3A CN201611095500A CN106756994A CN 106756994 A CN106756994 A CN 106756994A CN 201611095500 A CN201611095500 A CN 201611095500A CN 106756994 A CN106756994 A CN 106756994A
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- coating
- nickel
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- laser
- based composite
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Classifications
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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
-
- 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
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
Abstract
The invention discloses a kind of method of the nickel-based composite pow-der and prepares coating of laser cladding coating, the composite powder constitutes as follows by weight percentage：C：0.572~0.724%, Cr：15.5~16.1%, Si：3.1~3.7%, W：2.1~2.7%, Fe：26.8~32.4%, Mn：0.1~0.3%, B：2.45~3.15%, Cu：0.3~1.5%, Nb：0.015~0.135%, remaining is Ni.The nickel-based composite pow-der of laser cladding coating of the present invention, contain the elements such as Si, B higher, with slag making function, they preferentially melt borosilicate of generation low melting point etc. together with the oxygen in alloy powder and workpiece surface oxide and are covered in weld pool surface, prevent liquid metal over oxidation, so as to improve wettability of the melt to parent metal, being mingled with and oxygen content in reduction cladding layer, the process forming performance of cladding layer is improved.
Description
Technical field
The present invention relates to the method for the nickel-based composite pow-der and prepares coating of laser cladding coating, belong to laser melting and coating technique
Field.
Background technology
Many engineering materials under arms during, easily there is abrasion, fatigue etc. in material surface and destroy, to a certain extent
The use condition and scope of material are limited, the service life of material is shortened.Can in carbon steel surface laser cladding nickel-base alloy
Significantly to improve the surface property of material, case hardness, wearability, corrosion resistance of material etc. are improved.
Laser melting coating as a kind of new surface modifications technology, the excellent of surface fused coating technology and composite technology
Gesture combines, and using relatively low cost material surface can be made to meet the requirement to high-wearing feature and high corrosion resistance, while
The tough sexual clorminance of matrix material can be given full play to, so as to the overall combination property of engineering material being greatly improved and using
Life-span.In the heavy industry such as oil gas drilling, mining, heavy metallurgy field, surface cladding technology turns into remanufactured component, improves zero
The important channel of part service life.Compared with conventional surface treatment technology of material, laser melting coating has advantages below：(1) add
Hot cooling velocity is fast, and workpiece deformation is small；(2) matrix material is small to cladding layer diluting effect, it is ensured that form the metallurgical junction of high intensity
Close；(3) even tissue for obtaining is fine and close, good combination property；(4) automated production is easily realized, the work for greatly reducing workman is strong
Degree；(5) relevance grade is wide, improves stock utilization.
BRGIMM Advanced Materials Science ＆ Technology Co., Ltd. Xu Hong is gorgeous, a kind of iron based laser about wear-and corrosion-resistant of pretty rich et al. the invention of state
Cladding powder, but hardness is less than 40HRC；Advanced Manufacturing Technology Research Center, Mechanical Science Research Institute Dan Zhongde, Sun Fuzhen
Et al. a kind of Ni-based recombination laser powder of iron of invention and the cladding powder method, hardness is higher, but can not accomplish the shape of flawless
State.
Material major part used by current laser melting coating is spraying alloy material, nowadays present in laser cladding process
Some knotty problems, in addition to Shortcomings in technique, are also required to add to consider in the selection of coating material.Therefore, root
It is qualitative according to required cladding layer capability or even quantitatively design the composition of alloy, and designed according to different working conditions
Coating material of different shapes, this has turned into needs one of problem of research at present.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of nickel of laser cladding coating
The method of base composite powder and prepares coating, prevents liquid metal over oxidation during prepares coating, improve melt to parent metal
Wettability, reduce cladding layer in being mingled with and oxygen content, improve cladding layer process forming performance.
Technical scheme：In order to solve the above technical problems, a kind of nickel-based composite pow-der of laser cladding coating of the invention, institute
State composite powder and constitute as follows by weight percentage：C：0.572~0.724%, Cr：15.5~16.1%, Si：3.1~
3.7%th, W：2.1~2.7%, Fe：26.8~32.4%, Mn：0.1~0.3%, B：2.45~3.15%, Cu：0.3~
1.5%th, Nb：0.015~0.135%, remaining is Ni.
Preferably, the granularity of the composite powder is -140~+325 mesh.
A kind of method of the nickel-based composite pow-der prepares coating of above-mentioned laser cladding coating, meets following steps：
(1) by laser head perpendicular to the workpiece surface for treating cladding, using coaxial powder feeding apparatus, by described Ni-based composite powder
Last uniform feeding workpiece surface；
(2) it is made Ni-based coating using laser transmitting laser melting coating in argon atmosphere.
Preferably, the amount of the laser cladding powder sent into the step (1) can meet the thickness of individual layer cladding layer
It is 0.4mm~0.6mm.
Preferably, step (2) laser power is 1600W~2200W, the hot spot of laser is the side of 5mm × 5mm
Shape.
Preferably, the powder sending quantity of the nickel-based composite pow-der of the step (1) is 10g/min~15g/min, laser scanning
Speed is 240mm/min~480mm/min, and overlapping rate is 25%~30%.
Preferably, the protection gas purity used by the step (2) is 99.99% high-purity argon gas.
Preferably, also including before described laser melting coating is carried out：Nickel-based composite pow-der in the step (1) is put into
Dried in drying box, degreasing, processing of rust removing are carried out to workpiece surface.
Beneficial effect：Compared to existing technology, with advantages below：
(1) containing elements such as Si, B higher in laser fusion covered nickel base composite powder of the present invention, with slag making function, they
Borosilicate of generation low melting point etc. is preferentially melted together with the oxygen in alloy powder and workpiece surface oxide and is covered in molten bath
Surface, prevents liquid metal over oxidation, so that improve wettability of the melt to parent metal, being mingled with reduction cladding layer
And oxygen content, improve the process forming performance of cladding layer.
(2) cladding can be effectively improved containing elements such as Ni, Cr higher in laser fusion covered nickel base composite powder of the present invention
The corrosion resistance of layer.
(3) coating can be improved hard containing elements such as B, Cr, C higher in laser fusion covered nickel base composite powder of the present invention
Degree, up to more than 45HRC.
(4) present invention uses coating and the matrix of suitable technological parameter, acquisition to form good metallurgical binding, flawless
Produce.
Specific embodiment
Embodiment 1：
The laser fusion covered nickel base composite powder of the present embodiment constitutes as follows by weight percentage：C：0.572%th, Cr：
15.5%th, Si：3.1%th, W：2.1%th, Fe：32.4%th, Mn：0.3%th, B：2.45%th, Cu：0.3%th, Nb：0.135%, surplus
It is Ni.
The specific method of the laser melting coating prepares coating of the embodiment of the present invention is as follows：
Step 1：Under manual mode, Manipulation of the machine people is put into laser head alignment pieces surface by the powder before cladding
150 DEG C are heated in drying box and 0.5h is incubated, drying and processing is carried out；Degreasing, processing of rust removing are carried out to workpiece surface；
Step 2：It is consistent with laser light incident direction using synchronous coaxial powder-feeding, i.e. powder feeding direction, powder is sent to and treats cladding
Workpiece surface；
Step 3：In laser melting coating by nickel-based composite pow-der through coaxial powder-feeding mode powder feeding, in argon atmosphere
Cladding is made Ni-based coating, when changed power, suitably to adjust sweep speed and defocusing amount, keeps power/sweep speed
Stabilization, it is preferable that laser power is 1600W~2000W, hot spot is square for 5mm × 5mm's.
Step 4：When completing single track cladding, next starting point for setting that laser head returns to continues cladding formation multiple tracks and takes
Connect, overlapping rate is 30%.
Embodiment 2：
The laser fusion covered nickel base composite powder of the present embodiment constitutes as follows by weight percentage：C：0.648%th, Cr：
15.9%th, Si：3.4%th, W：2.4%th, Fe：26.8%th, Mn：0.2%th, B：2.8%th, Cu：1.0%th, Nb：0.09%, it is balance of
Ni。
The method of prepares coating is same as Example 1.
Embodiment 3：
The laser fusion covered nickel base composite powder of the present embodiment constitutes as follows by weight percentage：C：0.724%th, Cr：
16.1%th, Si：3.7%th, W：2.7%th, Fe：29.8%th, Mn：0.1%th, B：3.15%th, Cu：1.5%th, Nb：0.015%, surplus
It is Ni.
The method of prepares coating is same as Example 1.
The component of comparative example and the performance of prepares coating are as shown in table 1：
Table 1
Can be drawn by table 1：B, Si element can improve the mobility and wellability of metal in nickel-based composite pow-der, obtain
The good coating of shaping surface, and the function with slag making are obtained, boride can be also formed, silicide improves coating hardness；Cr、W、
C element can form C23C6Type carbide and WC, these hard phases improve coating hardness；Ni, Fe element can form solid solution, can carry
Strength of coating high and hardness；Ni, Cr element can play its passivation, effectively improve the corrosion resistance of cladding layer；Mn's acts on
In the mechanical strength and middle warm nature energy that improve material；Cu increases the corrosion resistance to non-oxidizing acid at corrosion-resistant aspect, reduces
To the sensitiveness of spot corrosion, plasticity is good, and cold-forming property is excellent；Nb elements can prevent intercrystalline corrosion, improve strength of coating.As lacked
Few above-mentioned element, can cause corresponding degradation.Laser is carried out using nickel-based composite pow-der of the invention and technological parameter
Cladding, can obtain the cladding layer that flawless, hardness are high, corrosion resistance is good, have broad application prospects.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of nickel-based composite pow-der of laser cladding coating, it is characterised in that：The composite powder is constituted by weight percentage
It is as follows：C：0.572~0.724%, Cr：15.5~16.1%, Si：3.1~3.7%, W：2.1~2.7%, Fe：26.8~
32.4%th, Mn：0.1~0.3%, B：2.45~3.15%, Cu：0.3~1.5%, Nb：0.015~0.135%, remaining is Ni.
2. the nickel-based composite pow-der of laser cladding coating according to claim 1, it is characterised in that：The composite powder
Granularity is -140~+325 mesh.
3. a kind of method of the nickel-based composite pow-der prepares coating of the laser cladding coating described in claim 1 or 2, its feature exists
In meeting following steps：
(1) it is using coaxial powder feeding apparatus, described nickel-based composite pow-der is equal by laser head perpendicular to the workpiece surface for treating cladding
Even feeding workpiece surface；
(2) it is made Ni-based coating using laser transmitting laser melting coating in argon atmosphere.
4. the method for the nickel-based composite pow-der prepares coating of laser cladding coating according to claim 3, it is characterised in that：
The thickness that the amount of the laser cladding powder sent into the step (1) can meet individual layer cladding layer is 0.4mm~0.6mm.
5. the method for the nickel-based composite pow-der prepares coating of laser cladding coating according to claim 3, it is characterised in that：
Step (2) laser power is 1600W~2200W, and the hot spot of laser is the square of 5mm × 5mm.
6. the method for the nickel-based composite pow-der prepares coating of laser cladding coating according to claim 3, it is characterised in that
The powder sending quantity of the nickel-based composite pow-der of the step (1) be 10g/min~15g/min, laser scanning speed be 240mm/min~
480mm/min, overlapping rate is 25%~30%.
7. the method for the nickel-based composite pow-der prepares coating of laser cladding coating according to claim 3, it is characterised in that：
Protection gas purity used by the step (2) is 99.99% high-purity argon gas.
8. the method for the nickel-based composite pow-der prepares coating of laser cladding coating according to claim 3, it is characterised in that
Also include before described laser melting coating is carried out：Nickel-based composite pow-der in the step (1) is put into drying box and dries, to work
Part surface carries out degreasing, processing of rust removing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095500.3A CN106756994A (en) | 2016-12-02 | 2016-12-02 | A kind of nickel-based composite pow-der of laser cladding coating and the method for prepares coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611095500.3A CN106756994A (en) | 2016-12-02 | 2016-12-02 | A kind of nickel-based composite pow-der of laser cladding coating and the method for prepares coating |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044123A (en) * | 2017-11-14 | 2018-05-18 | 中国航发北京航空材料研究院 | A kind of Nb-Si-Ti alloy preparation methods with oriented freezing organization |
| CN108326287A (en) * | 2018-03-26 | 2018-07-27 | 浙江安可环保科技有限公司 | Corrosion-resistant laser cladding powder and its cladding method and purposes |
| CN110230052A (en) * | 2019-06-26 | 2019-09-13 | 王辉 | The method of laser melting coating preparation function roller-way |
| CN110373668A (en) * | 2019-07-31 | 2019-10-25 | 江西科技学院 | A kind of Al alloy composite and preparation method thereof |
| CN113234962A (en) * | 2021-05-12 | 2021-08-10 | 南昌大学 | Plasma cladding modified nickel-based high-temperature alloy coating for repairing surface and preparation method thereof |
| CN114645160A (en) * | 2022-03-09 | 2022-06-21 | 中国地质大学（武汉） | Spherical alloy powder, preparation method thereof and laser cladding method |
| CN114769579A (en) * | 2022-05-07 | 2022-07-22 | 江苏科技大学 | Nickel-based alloy powder for additive manufacturing and preparation method thereof |
| CN115351271A (en) * | 2022-08-31 | 2022-11-18 | 国家电投集团江西水电检修安装工程有限公司 | Impeller corrosion-resistant coating powder, impeller corrosion-resistant coating and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044123A (en) * | 2017-11-14 | 2018-05-18 | 中国航发北京航空材料研究院 | A kind of Nb-Si-Ti alloy preparation methods with oriented freezing organization |
| CN108044123B (en) * | 2017-11-14 | 2020-03-31 | 中国航发北京航空材料研究院 | Preparation method of Nb-Si-Ti alloy with directional solidification structure |
| CN108326287A (en) * | 2018-03-26 | 2018-07-27 | 浙江安可环保科技有限公司 | Corrosion-resistant laser cladding powder and its cladding method and purposes |
| CN108326287B (en) * | 2018-03-26 | 2020-05-29 | 浙江安可环保科技有限公司 | Corrosion-resistant laser cladding powder and cladding method and application thereof |
| CN110230052A (en) * | 2019-06-26 | 2019-09-13 | 王辉 | The method of laser melting coating preparation function roller-way |
| CN110373668A (en) * | 2019-07-31 | 2019-10-25 | 江西科技学院 | A kind of Al alloy composite and preparation method thereof |
| CN113234962A (en) * | 2021-05-12 | 2021-08-10 | 南昌大学 | Plasma cladding modified nickel-based high-temperature alloy coating for repairing surface and preparation method thereof |
| CN114645160A (en) * | 2022-03-09 | 2022-06-21 | 中国地质大学（武汉） | Spherical alloy powder, preparation method thereof and laser cladding method |
| CN114769579A (en) * | 2022-05-07 | 2022-07-22 | 江苏科技大学 | Nickel-based alloy powder for additive manufacturing and preparation method thereof |
| CN115351271A (en) * | 2022-08-31 | 2022-11-18 | 国家电投集团江西水电检修安装工程有限公司 | Impeller corrosion-resistant coating powder, impeller corrosion-resistant coating and preparation method thereof |
| CN115351271B (en) * | 2022-08-31 | 2024-01-26 | 国家电投集团江西水电检修安装工程有限公司 | Impeller corrosion-resistant coating powder, impeller corrosion-resistant coating and preparation method thereof |
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Application publication date: 20170531 |