CN104947025A - Preparation of anticorrosive wear-resistant amorphous/nanocrystal composite coating - Google Patents
Preparation of anticorrosive wear-resistant amorphous/nanocrystal composite coating Download PDFInfo
- Publication number
- CN104947025A CN104947025A CN201410114216.0A CN201410114216A CN104947025A CN 104947025 A CN104947025 A CN 104947025A CN 201410114216 A CN201410114216 A CN 201410114216A CN 104947025 A CN104947025 A CN 104947025A
- Authority
- CN
- China
- Prior art keywords
- coating
- spraying
- powder core
- preparation
- amorphous
- 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
Abstract
The invention relates to a powder core wire material for preparing an amorphous/nanocrystal coating by arc spraying and a preparation technique thereof. The powder core material is formed by coating a 304L stainless steel sheath on a powder core. The powder core is composed of the following components in percentage by mass: 0.3-1.0% of C, 4-7% of B, 1-3% of Si, 12-16% of Cr, 17-23% of Al, 1-2% of mixed rare earth (the mixed RE is composed of 25-28 wt% of La, 48-52 wt% of Ce, 14-17% of Nb and 4-6% of Pu), and the balance of Fe. The parameters of the technique for preparing the coating by arc spraying are as follows: the spraying current is 160-200A, the voltage is 32-36V, the spraying distance is 160-200mm, the compressed air pressure is 0.7 MPa, and the spraying angle is 90 degrees. By using the powder core wire material and corresponding spraying technique, the prepared coating is mainly used as a wear-resistant corrosion-resistant protective coating material on the mechanical part surface.
Description
Technical field
The present invention relates to the powder cored filament material of a kind of electric arc spraying preparation containing amorphous nano-crystalline structure coating, powder cored filament material of the present invention is mainly used as the corrosion-resistant barrier material of component of machine surface abrasion resistance.
Corrosion and wearing and tearing are the topmost failure modes of metallic element, add up according to external industrially developed country, and annual Corrosion Of Steel loss accounts for 10% of steel ultimate production, and financial loss accounts for total value of production in national economy 2%-4%.At industrial circle, have the machine of 70%-80% to be scrap because of frictional wear, world energy sources has 1/3-2/3 to be consumed in the various forms of friction of customer service.All kinds of wearing and tearing, inefficacy caused by corrosion often betide the surface of material mechanical component.In order to improve the reliability of part, increase the service life, researchist develops large quantities of practicality, advanced surface engineering technology reparation or strengthening piece surface, prepares the function of surface thin layer being better than bulk material performance, gives part protection against corrosion, the performance such as wear-resistant.
Amorphous alloy is longrange disorder due to the arrangement of atoms metal, there are not the crystal boundary of crystal metal existence, defect, segregation and precipitate etc., shows isotropy.This structures shape of amorphous alloy it there is excellent properties not available for many amorphous metal, as wear-resisting, the corrosion resistance nature of high rigidity, high strength and excellence.Therefore, from the angle of non-crystaline amorphous metal performance advantage, as functional materials, there is larger application potential.And non-crystaline amorphous metal is combined with Surface Engineering, adopting modern advanced hot-spraying techniques to prepare surperficial amorphous coating is exactly new developing to non-crystaline amorphous metal technology of preparing.One of distinguishing feature of hot-spraying techniques is that spraying particle has very high speed of cooling, and the typical speed of cooling of single molten particles is greater than 10
6k/s, this just means that each molten particles is fast quenching material, as long as spraying alloying constituent is suitable for, technique is suitable, just can form amorphous phase.Hot-spraying techniques starts to cause extensive concern as one of most promising large area amorphous coating production.
In the amorphous coating system developed at present, Fe base and Ni base are surface protection coating materials the most suitable, but consider from practical standpoint, the high cost of Ni base coating limits it and applies on a large scale, and Fe base amorphous alloy coating is while the wear-corrosion resistance keeping excellence, there is again higher cost performance, be more suitable for as surface protection coating material and be widely applied.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of electric arc spraying and prepares the powder cored filament material of amorphous nanocrystalline coating and the preparation technology of coating, the coating that described powder cored filament material is prepared through electric arc spraying has low oxide content, high bond strength is wear-resisting good with corrosion resisting property.
Electric arc spraying preparation provided by the invention, containing the powder cored filament material of amorphous nanocrystalline coating, is made up of 304L stainless steel crust coated composite powder core, and described powder core composition (mass percentage content) is:
C:0.3-1.0%, B:4-7%, Si:1-3%, Cr:12-16%, Al:17-23%, (wherein mix Re is the La of 25 ~ 28% by mass percentage to mishmetal: 1-2%; The Ce of 48 ~ 52%; The Pu composition of the Nb and 4 ~ 6% of 14 ~ 17%), Fe surplus.
The preparation method of powder cored filament material of the present invention, comprises the following steps:
1, roll into U-shaped by the 08F mild-carbon steel strip of 0.3 × 10mm, then in U-type groove, add above-mentioned powder core composition, filling ratio is 32 ~ 35%.
2, U-type groove is healed up, make powder core ingredients wherein, by wortle drawing step by step, tube reducing, finally make diameter reach 2.0mm.
3, the preparation technology of coating is: first adopt robot automation's High Speed Electric Arc Spraying system to prepare coating, spraying current 160 ~ 200A on the 45 steel matrix surfaces through sandblasting roughening treatment; Voltage 32 ~ 36V; Spray distance 160mm ~ 200mm; Compressed air pressure 0.7MPa, spray angle 90 °.
Advantage of the present invention: use powder cored filament material of the present invention, and corresponding spraying coating process, adopt arc spraying technology can prepare low porosity (< 5%), higher (the > 700HV of low oxide content, hardness at the component surface of steel matrix
0.1), bonding strength higher (> 40MPa), arc spray coatings containing amorphous nano crystal structure.Further, the coating prepared of the present invention is wear-resisting and corrosion resisting property is good.
Accompanying drawing explanation
Fig. 1 is the X ray diffracting spectrum of coating prepared by embodiment 1, and example 1 prepares coating XRD diffraction patterns.
Fig. 2 compound coating interface bond strength test result.
Fig. 3 compound coating section hardness test result.
Fig. 4 compound coating porosity test result.
Embodiment
Embodiment 1
1, the preparation of powder cored filament material
The 314L Stainless Steel Band of 10mm × 0.3mm (width is 10mm, and thickness is 0.3mm) is rolled into U-shaped, then in U-type groove, adds powder mix core composition, powder core filling ratio is 32%, U-type groove is healed up, and powder core is wrapped up wherein, by wortle drawing step by step, tube reducing, finally make diameter reach 2mm, in described powder core, the mass percent of each composition is: C:0.5%, B:4%, Si:2%, Cr:12%, Al:17%, mishmetal: 1-2%, Fe surplus.
2, the preparation of arc spray coatings
45 surface of steel plate are carried out to the cleanings such as oil removing, rust cleaning, scrubbing, carry out sandblasting roughening treatment subsequently, electric arc spraying process parameter is: spraying current: 160A; Spray voltage: 34V; Compressed air pressure: 0.7MPa; Spray distance: 200mm.
Embodiment 2
1, the preparation of powder cored filament material
The 314L Stainless Steel Band of 10mm × 0.3mm (width is 10mm, and thickness is 0.3mm) is rolled into U-shaped, then in U-type groove, adds powder mix core composition, powder core filling ratio is 33%, U-type groove is healed up, and powder core is wrapped up wherein, by wortle drawing step by step, tube reducing, finally make diameter reach 2mm, in described powder core, the mass percent of each composition is: C:0.5%, B:4%, Si:2%, Cr:12%, Al:17%, mishmetal: 1-2%, Fe surplus.
2, the preparation of arc spray coatings
45 surface of steel plate are carried out to the cleanings such as oil removing, rust cleaning, scrubbing, carry out sandblasting roughening treatment subsequently, electric arc spraying process parameter is: spraying current: 180A; Spray voltage: 34V; Compressed air pressure: 0.7MPa; Spray distance: 180mm.
Embodiment 3
1, the preparation of powder cored filament material
The 314L Stainless Steel Band of 10mm × 0.3mm (width is 10mm, and thickness is 0.3mm) is rolled into U-shaped, then in U-type groove, adds powder mix core composition, powder core filling ratio is 34%, U-type groove is healed up, and powder core is wrapped up wherein, by wortle drawing step by step, tube reducing, finally make diameter reach 2mm, in described powder core, the mass percent of each composition is: C:1.0%, B:7%, Si:3%, Cr:16%, Al:20%, mishmetal: 1-2%, Fe surplus.
2, the preparation of arc spray coatings
45 surface of steel plate are carried out to the cleanings such as oil removing, rust cleaning, scrubbing, carry out sandblasting roughening treatment subsequently, electric arc spraying process parameter is: spraying current: 180A; Spray voltage: 35V; Compressed air pressure: 0.7MPa; Spray distance: 180mm.
Embodiment 4
1, the preparation of powder cored filament material
The 314L Stainless Steel Band of 10mm × 0.3mm (width is 10mm, and thickness is 0.3mm) is rolled into U-shaped, then in U-type groove, adds powder mix core composition, powder core filling ratio is 35%, U-type groove is healed up, and powder core is wrapped up wherein, by wortle drawing step by step, tube reducing, finally make diameter reach 2mm, in described powder core, the mass percent of each composition is: C:0.7%, B:6%, Si:2%, Cr:16%, Al:23%, mishmetal: 1-2%, Fe surplus.
2, the preparation of arc spray coatings
45 surface of steel plate are carried out to the cleanings such as oil removing, rust cleaning, scrubbing, carry out sandblasting roughening treatment subsequently, electric arc spraying process parameter is: spraying current: 200A; Spray voltage: 36V; Compressed air pressure: 0.7MPa; Spray distance: 200mm.
Different instances prepares the performance analysis of coating
The X ray diffracting spectrum of coating prepared by the present embodiment 1 is shown in Fig. 1.As can be seen from Figure 1, the coating of preparation has the peak of dispersing of broadening to exist in ° position, 2 θ=45, disperse on peak and be superimposed with crystalline diffraction peak sharp-pointed on a small quantity, its intensity and quantity are all less, say in name coating to there is amorphous phase, coating is composited by amorphous and crystalline structure.By Verdon method, Pseudo-Voigt Function Fitting is carried out to XRD diffractogram, then integration is carried out to matched curve, calculate the amorphous content about 64.3% in coating.
Test the section hardness of amorphous/nanocrystalline coating prepared by different instances, bonding strength, porosity and corrosion resistance nature, result is as follows:
1, the interface bond strength test result of compound coating
Compound coating bond strength test results according to analyzing the present invention's development shows (as shown in Figure 2), four kinds of examples implement the anchoring strength of coating of preparation all higher than set technical indicator value (being greater than 40MPa), and higher than the bonding strength (about 28 ~ 30MPa) of traditional iron-based coating (3Cr13 coating).
2, the section hardness test result of compound coating
Compound coating cross section micro-hardness testing result according to analyzing the present invention's development shows (as shown in Figure 3), and the cross section microhardness value of four kinds of example enforcement preparations all (is greater than 700HV higher than set technical indicator value
0.1).
3, the porosity test result of compound coating
Compound coating porosity test result according to analyzing the present invention's development shows (as shown in Figure 4), and the porosity of four kinds of example enforcement preparations is all less than set technical indicator value (lower than 5%).
Claims (2)
1. the powder cored filament material of amorphous nanocrystalline coating is prepared in an electric arc spraying, be made up of 304L stainless steel crust coated composite powder core, described powder core composition (mass percentage content) is: C:0.3-1.0%, B:4-7%, Si:1-3%, Cr:12-16%, Al:17-23%, (wherein mix Re is the La of 25 ~ 28% by mass percentage to mishmetal: 1-2%; The Ce of 48 ~ 52%; The Pu composition of the Nb and 4 ~ 6% of 14 ~ 17%), Fe surplus.
2. adopt claim 1 to develop powder cored filament material, the technique utilizing arc spraying technology to prepare coating is: spraying current 160 ~ 200A; Voltage 32 ~ 36V; Spray distance 160mm ~ 200mm; Compressed air pressure 0.7MPa, spray angle 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114216.0A CN104947025A (en) | 2014-03-26 | 2014-03-26 | Preparation of anticorrosive wear-resistant amorphous/nanocrystal composite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114216.0A CN104947025A (en) | 2014-03-26 | 2014-03-26 | Preparation of anticorrosive wear-resistant amorphous/nanocrystal composite coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104947025A true CN104947025A (en) | 2015-09-30 |
Family
ID=54162080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114216.0A Pending CN104947025A (en) | 2014-03-26 | 2014-03-26 | Preparation of anticorrosive wear-resistant amorphous/nanocrystal composite coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104947025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734480A (en) * | 2015-12-09 | 2016-07-06 | 北京矿冶研究总院 | Method for improving corrosion resistance of lead-cooled neutron reactor structural component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925789A (en) * | 2012-11-16 | 2013-02-13 | 北京工业大学 | Iron-based cored wire including amorphous phase abrasion-resistant and corrosion-resistant coating prepared by utilizing electric arc spraying and preparation method of coating |
| CN103088280A (en) * | 2013-01-04 | 2013-05-08 | 北京工业大学 | Cored wire for preparing iron-based coating as well as preparation method and application thereof |
| CN103173711A (en) * | 2013-03-04 | 2013-06-26 | 中国人民解放军装甲兵工程学院 | Arc sprayed cored wire suitable for re-melting |
| CN103343311A (en) * | 2013-07-17 | 2013-10-09 | 北京工业大学 | Boron-contained powder core wire material for preparing iron-based corrosion-resistant coating layer in electric arc spraying manner and preparation method of iron-based corrosion-resistant coating layer |
-
2014
- 2014-03-26 CN CN201410114216.0A patent/CN104947025A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925789A (en) * | 2012-11-16 | 2013-02-13 | 北京工业大学 | Iron-based cored wire including amorphous phase abrasion-resistant and corrosion-resistant coating prepared by utilizing electric arc spraying and preparation method of coating |
| CN103088280A (en) * | 2013-01-04 | 2013-05-08 | 北京工业大学 | Cored wire for preparing iron-based coating as well as preparation method and application thereof |
| CN103173711A (en) * | 2013-03-04 | 2013-06-26 | 中国人民解放军装甲兵工程学院 | Arc sprayed cored wire suitable for re-melting |
| CN103343311A (en) * | 2013-07-17 | 2013-10-09 | 北京工业大学 | Boron-contained powder core wire material for preparing iron-based corrosion-resistant coating layer in electric arc spraying manner and preparation method of iron-based corrosion-resistant coating layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734480A (en) * | 2015-12-09 | 2016-07-06 | 北京矿冶研究总院 | Method for improving corrosion resistance of lead-cooled neutron reactor structural component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105088108B (en) | Iron-base amorphous alloy, powder material of alloy and wear-resisting anticorrosion coating of alloy | |
| Yasir et al. | Wear behaviors of Fe-based amorphous composite coatings reinforced by Al2O3 particles in air and in NaCl solution | |
| CN107699843B (en) | A kind of powder cored filament material and its preparation method and application preparing high content of amorphous coating | |
| Kamal et al. | High temperature oxidation studies of detonation-gun-sprayed Cr3C2–NiCr coating on Fe-and Ni-based superalloys in air under cyclic condition at 900° C | |
| Redjdal et al. | Characterization of thermal flame sprayed coatings prepared from FeCr mechanically milled powder | |
| CN105256259B (en) | A kind of high thermal stability iron-based amorphous coating and preparation method thereof | |
| CN102181814B (en) | Cored wire for high amorphous content wear-resistant anticorrosive coating layer | |
| Fan et al. | Wear and corrosion resistance of laser-cladded Fe-based composite coatings on AISI 4130 steel | |
| CN103088280A (en) | Cored wire for preparing iron-based coating as well as preparation method and application thereof | |
| Feifei et al. | Effect of rare earth oxides on the morphology of carbides in hardfacing metal of high chromium cast iron | |
| Liu et al. | Effects of loads on corrosion-wear synergism of NiCoCrAlYTa coating in artificial seawater | |
| CN103911560A (en) | High temperature abrasion resisting carbon-nitrogen alloying coating sprayed by electric arc and preparation method of coating | |
| Chu et al. | Understanding the cold spray deposition efficiencies of 316L/Fe mixed powders by performing splat tests onto as-polished coatings | |
| CN104213067A (en) | Method for coating high-temperature corrosion and wear resistant coating layer on surface of steel material | |
| CN104831208A (en) | High wear-resisting iron-base thermal spraying coating material and preparation method thereof | |
| CN102644045A (en) | Cored wire of high-speed electric arc spraying nickel-base amorphous nanocrystalline antifriction coating | |
| Nithin et al. | Elevated temperature solid particle erosion behaviour of carbide reinforced CoCrAlY composite coatings | |
| CN105441861A (en) | Powder cored wire for aluminum-based amorphous anti-corrosion coating | |
| Zhou et al. | Corrosion behavior of HVOF sprayed WC-10Co4Cr coatings in the simulated seawater drilling fluid under the high pressure | |
| Chu et al. | A multiple particle arrangement model to understand cold spray characteristics of bimodal size 316L/Fe powder mixtures | |
| Wen et al. | Corrosion resistance of vacuum re-melted Ni60-NiCrMoY alloy coatings | |
| Sharma et al. | Effect of chromium content on microstructure, mechanical and erosion properties of Fe-Cr-Ti-Mo-C-Si coating | |
| CN103060655A (en) | Preparation method of alloy powder and coating layer for preparing iron-base cladding layer | |
| CN102925789A (en) | Iron-based cored wire including amorphous phase abrasion-resistant and corrosion-resistant coating prepared by utilizing electric arc spraying and preparation method of coating | |
| CN102424968B (en) | Method for anticorrosion protective coating for high-strength steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |
|
| WD01 | Invention patent application deemed withdrawn after publication |