CN102251204A - Phosphorus-containing iron-based powder cored wire for preparing amorphous phase-containing coating by arc spraying and coating preparation method - Google Patents
Phosphorus-containing iron-based powder cored wire for preparing amorphous phase-containing coating by arc spraying and coating preparation method Download PDFInfo
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Abstract
The invention discloses a phosphorus-containing iron-based powder cored wire for preparing an amorphous phase-containing coating by arc spraying and a coating preparation method, and belongs to the field of thermal spraying in a material machining process. The steel strip used for the outer skin of the wire is a 304L stainless steel strip; the filling rate of the powder cored wire is 33 percent; and the powder cored wire comprises the following elements in percentage by atoms: 10 to 20 percent of Cr, 1 to 10 percent of P, 15 to 25 percent of B, 3 to 4 percent of C, and the balance of Fe. The coating preparation method comprises the following steps of: treating with abrasive paper of 180 meshes and brown alumina of 60 meshes; and obtaining the powder cored wire with diameter of 2.0 millimeters, and preparing a coating by adopting an arc spraying process, wherein in the spraying process parameters, the voltage is 25 to 34V, the current is 180 to 220A, the spraying distance is 190 to 210mm, and the compressed air pressure is 0.4 to 0.6MPa. The obtained amorphous phase-containing coating has high hardness, good abrasion resistance and good mechanical property.
Description
Technical field
The invention belongs to the field of thermal spray in the Materials Processing Engineering, is a kind of phosphorous powder cored filament material of iron-based that utilizes electric arc spraying process preparation to contain amorphous phase coating, and this invention is mainly used in protection against corrosion, each industrial circle such as wear-resistant.
Background technology
The mechanical component great majority are made with metallic substance, in use because the interaction of the piece surface that matches can cause wearing and tearing; The metallic surface of part owing to atmospheric influence chemistry takes place or electrochemical effect causes corrosion.Sometimes two kinds of phenomenons take place simultaneously, are called abrasion.Along with modern industry and science and technology development, mechanical component often are in unusual complicated and exacting terms work down, and a large amount of mechanical means are often destroyed because of wearing and tearing, corrosion or abrasion.
Amorphous alloy has more excellent physics, chemistry, mechanical property and precise forming owing to comparing with various traditional materials, plays an important role in high-tech areas such as aerospace device, precision optical machinery, information.But the fracture of single-phase block amorphous alloy shows as the brittle rupture of no macroscopical viscous deformation, and the engineering that has influenced non-crystaline amorphous metal is greatly used.In view of dislocation in the crystalline material is subjected to the resistance of second phase and the principle of breeding, in non-crystaline amorphous metal, introduce have varying strength and Young's modulus second mutually, hindering the slippage of single shear zone, impel the generation and the slippage of many shear zones, is a kind of effective means that improves amorphous alloy plasticity at present.
The preparation principle of amorphous alloy-based composite material is exactly to introduce second phase in non-crystaline amorphous metal, and generation and expansion that the structure of change non-crystaline amorphous metal is come the controlling shear band are to improve toughness, intensity and the hardness of noncrystal substrate.At present, give birth to compound in generally having based on the preparation method of the amorphous alloy-based composite material of mechanical property and add compound two kinds.Giving birth to composite algorithm wherein has amorphous crystallization method, chilling casting and in-situ reaction, and adding composite algorithm has casting die and liquid infiltration casting, and a distinguishing feature of these methods is exactly that technology is complicated, equipment complexity, Financial cost height.Comparatively speaking, adopting heat spraying method to prepare the non-crystaline amorphous metal based nano composite material is a frontier of broad research in the Materials science in recent years.Hot-spraying techniques equipment complexity such as plasma spraying, detonation flame spraying, hypersonic flame spraying, the cost height is not suitable for original position big area site operation, and spraying starting material powder preparing complexity.And that electric arc spraying has equipment is simple, easy to operate, and spray material is easy to prepare, economical, can realize advantages such as original position big area spraying as one of most promising large area amorphous alloy-based preparation method of composite coating, having begun to cause extensive concern.The present invention utilizes the quick refrigerative characteristics of electric arc spraying to carry out the preparation of amorphous coating, give material surface new performance, increase substantially metal structural component and use properties, the purpose in reenlist life-span of device feature in harsh corrosive wear environment to reach.For economical with materials, reduction use cost, increasing economic efficiency makes a due contribution.
By retrieval, do not see at present and be used for the patent report that electrical arc spraying method for preparing contains the phosphorous ferrous alloy powder core-wire material of amorphous phase coating.
Summary of the invention
Problem to be solved by this invention is that to overcome traditional amorphous coating fragility big, be not suitable for the shortcoming that engineering is used, a kind of phosphorous ferrous alloy powder core-wire material that electrical arc spraying method for preparing contains amorphous phase coating that is used for is provided, electric arc spraying with powder cored filament material preparation of the present invention contains amorphous phase coating, coating hardness height, wear resisting property are good, have the good mechanical performance, can improve metal structural component and device feature use properties, the reenlist life-span in harsh corrosive wear environment.
A kind of phosphorous ferrous alloy powder core-wire material that electrical arc spraying method for preparing contains amorphous phase coating that is used for of the present invention is characterized in that: the used steel band of silk material crust is the 304L Stainless Steel Band; Powder cored filament material filling ratio: 33%.Each element atomic percent of powder cored filament material is: Cr:10-20at.%; P:1-10at.%; B:15-25at.%; C:3-4at.%; Fe: surplus.
Each element atomic percent of preferred described powder cored filament material is: Cr:13-20at.%; P:2-10at.%; B:16-25at.%; C:3-4at.%; Fe: surplus.
Further each element atomic percent of preferred described powder cored filament material is: Cr:13-15at.%; P:2-6at.%; B:16-22at.%; C:3-4at.%; Fe: surplus.
Adopt the above-mentioned powder cored filament material of the present invention to prepare a kind of method that contains the phosphorous iron-based coating of amorphous phase, it is characterized in that, comprise the steps:
Step 1: matrix surface is carried out pre-treatment: matrix surface is after granularity 180 order sand paper pre-grinding, and utilizing granularity is that 60 orders palm fibre corundum carries out sandblasting, air pressure 0.5-0.6MPa, time 20s.
Step 2: powder cored filament material is rolling, finally obtain the powder cored filament material that diameter is 2.0mm, allow over/under tolerance in 0.03mm.
The described spraying coating process of step 3 is optimized, and spraying parameter is set at: voltage 30-32V; Electric current 190-200A; Spray distance: 200mm; Compressed air pressure: 0.5-0.6MPa.
Amorphous alloy-based composite material is the combination of high strength, hardness, toughness, wear resistance and erosion resistance, but in actual applications, so far still do not apply on a large scale, its principal element is that its preparation process is difficult to control, existing preparing technique process is complicated, the equipment complexity, the Financial cost height is not suitable for the engineering widespread use.In numerous preparation methods, hot-spraying techniques is a kind of technology that has competitive power, also is very promising technology simultaneously.In hot-spraying techniques, main plasma spraying technology and the hypersonic flame spraying technology of adopting prepares the non-crystal structure coating, with respect to plasma spraying and hypersonic flame spraying, electric arc spraying is because its good economy performance, can on-the-spot original position large-area construction, and characteristics that coating performance is good and being widely used in each industrial circle such as anticorrosion, wear-resisting, adopt the arc spray process preparation to contain non-crystaline amorphous metal phase coating, technology is simple, good economy performance, and the engineering that is beneficial to amorphous alloy material is applied.
Fe, P element: in coating generation electrochemical corrosion course, the H in P element and the corrosive medium
2O and O reaction generate H
3PO
4, and H
3PO
4React with the Fe element,, coating is played a protective role the stable alpha-feooh of the final formation of Fe oxidation.
The Cr element: the Cr in the coating can form the Cr of the continuous densification with good corrosion resistance
2O
3Oxide film plays a protective role to coating.
B element: reduce the crystal boundary chemical energy, strengthen intercrystalline bonding force, crystal grain thinning.
Though each element in the coating all is conventional element, the wear resistance and corrosion resistance of coating is by the synergy decision of each element, is not the single-element decision, neither be only just available by the limited number of time test.
Use the present invention's processing parameter during according to electric arc spraying of the prior art on through the metallic matrix after the sandblast alligatoring to spray, what prepare contains amorphous phase coating, the coating hardness height, and wear resistance is good, fine corrosion resistance.The coating that the powder cored filament material of developing with the present invention prepares contains amorphous content greater than 20%, and its relative wear resistance can reach 7.7 times of matrix Q235 steel.Has electrochemical corrosion resistant performance preferably than the Q235 matrix.
By containing the preparation of amorphous phase coating, give material surface new performance, increase substantially metal structural component and use properties, the purpose in reenlist life-span of device feature in harsh corrosive wear environment to reach.For economical with materials, reduction use cost, increasing economic efficiency makes a due contribution.
Description of drawings
The matched curve that Fig. 1 embodiment 9 coating XRD figure samples and content of amorphous are measured;
Fig. 2 embodiment 1-11 coating microhardness Changing Pattern;
Fig. 3 embodiment 1-11 coating relative wear resistance Changing Pattern;
Each element energy spectrum analysis of Fig. 4 embodiment 9 coatings cross-section;
(a) cross section pattern, (b) Fe, (c) Cr, (d) P, (e) B, (f) C.
Embodiment
Further illustrate substantive distinguishing features of the present invention and remarkable advantage below by embodiment, the present invention only is confined to the embodiment that stated by no means.
Same section is as described below among each embodiment:
Among the embodiment powder cored filament material crust to select specification for use be the 304L Stainless Steel Band of 12 * 0.3mm (width is 12mm, and thickness is 0.3mm), the composition of powder cored filament material specifies in an embodiment.Various powder are put into and are mixed powder machine mixing 10 minutes, then mixed powder are added in the 304L stainless steel belt groove of U-shaped, and filling ratio is 33%.U-lag is healed up, makes medicinal powder parcel wherein, again through wortle gradually tube reducing make its diameter reach 2.0mm;
Matrix select for use Q235 (be of a size of 57 * 25 * 5mm) and adopt No. 45 steel according to the prepared tension specimen rod of the sample dimensions of defined among the GB GB9796-88 after granularity is 180 order sand paper pre-grinding, adopting granularity is 60 orders palm fibre corundum, gaseous tension 0.5-0.6MPa, time length 20s carries out the sandblast roughening treatment to test specimen; 3. spraying parameter specifies in an embodiment, and abrasive wear, solidity to corrosion experiment are no more than 50 μ m with the each coating thickness of coating, spray to 500 μ m several times; In same embodiment, identical with abrasive wear, solidity to corrosion experiment preparation technology of coating parameter, each coating thickness is no more than 50 μ m to bonding strength test, sprays to 250 μ m several times with coating.
According to each element atomic percent of powder cored filament material be: Cr:10at.%; P:1at.%; B:15at.%; C:3at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 25-30V; Electric current 180-200A; Spray distance 190mm; Compressed air pressure 0.4-0.5MPa.
According to each element atomic percent of powder cored filament material be: Cr:10at.%; P:1at.%; B:15at.%; C:3at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
According to each element atomic percent of powder cored filament material be: Cr:13at.%; P:2at.%; B:16at.%; C:3at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 25-30V; Electric current 180-200A; Spray distance 190mm; Compressed air pressure 0.4-0.5MPa.
According to each element atomic percent of powder cored filament material be: Cr:13at.%; P:2at.%; B:16at.%; C:3at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
According to each element atomic percent of powder cored filament material be: Cr:15at.%; P:6at.%; B:22at.%; C:4at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 25-30V; Electric current 180-200A; Spray distance 190mm; Compressed air pressure 0.4-0.5MPa.
According to each element atomic percent of powder cored filament material be: Cr:15at.%; P:6at.%; B:22at.%; C:4at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
According to each element atomic percent of powder cored filament material be: Cr:20at.%; P:10at.%; B:25at.%; C:4at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 25-30V; Electric current 180-200A; Spray distance 190mm; Compressed air pressure 0.4-0.5MPa.。
According to each element atomic percent of powder cored filament material be: Cr:20at.%; P:10at.%; B:25at.%; C:4at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
According to each element atomic percent of powder cored filament material be: Cr:14at.%; P:2at.%; B:22at.%; C:3at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6Mpa, Fig. 1 is seen in the matched curve that coating XRD figure sample and content of amorphous are measured, Fig. 4 is seen in each element energy spectrum analysis of coatings cross-section.
According to each element atomic percent of powder cored filament material be: Cr:13at.%; P:4at.%; B:20at.%; C:4at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
According to each element atomic percent of powder cored filament material be: Cr:13at.%; P:6at.%; B:16at.%; C:4at.%; Fe: surplus.Rolling powder cored filament material.The used processing parameter of preparation coating: voltage 30-34V; Electric current 200-220A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
The prepared coating performance of each embodiment detects as described below:
1. the prepared coating of embodiment is carried out analysis of porosity, adopt Image Pro Plus 6.0 image analysis software, utilize image method to analyze coating porosity, to estimate the coating density.Respectively the cross section of each embodiment manufactured coating is got five metallographs and calculate, and get its mean value, see Table 1.
2. the prepared coating of embodiment is carried out x-ray diffraction experiment, adopt D8ADVANCE type X-ray diffractometer to carry out.Test condition is: Cu target K α radiation, and voltage 40kV, electric current 50mA, diffraction angle (2 θ), useful range is 20～80 °, 0.02 ° of scanning step, temperature is 298K.
3. the prepared coating of embodiment is carried out the mensuration of content of amorphous, passes through Verdon[27] method, to result's row Pseudo-Voigt[28 of each embodiment XRD diffraction experiment, 29] the function match, calculate the content of amorphous in the coating.Content of amorphous sees Table 1.
4. the prepared coating of embodiment is carried out micro-hardness testing, adopt the digital microhardness tester of HXD-1000TM, load 100g, loading time 15s, each embodiment coating is measured the microhardness value of 10 points and is averaged, and the coating microhardness Changing Pattern is seen Fig. 2.
5. the prepared coating of embodiment is carried out wear-resistant experiment, adopt the wheeled grain-abrasion testing machine of MLS-225 type damp sand rubber to carry out.Test parameter is as follows: rubber wheel diameter: 178mm, rubber wheel rotating speed: 240r/min, rubber wheel hardness: 60 (that hardness continues), load 100N, measurement revolution: pre-grinding 1000 is changeed, correct grinding 2000 changes, abrasive material: granularity 40-70 order quartz sand.The material wear-resistant performance is weighed with the weight loss of wearing and tearing.Before on-test and after finishing, sample is put into the beaker that becomes to have acetone soln, in ultrasonic washing instrument, cleaned 3-5 minute, in the experiment with Q235 steel sample as a comparison, the ratio of control sample weight loss and tested sample weight loss is as the relative wear resistance of coating.Be relative wear resistance, coating relative wear resistance Changing Pattern is seen Fig. 3.
Table 1 embodiment 1-11 porosity and microhardness
Claims (6)
1. one kind is used for the phosphorous ferrous alloy powder core-wire material that electrical arc spraying method for preparing contains amorphous phase coating, it is characterized in that, the used steel band of silk material crust is the 304L Stainless Steel Band; Powder cored filament material filling ratio: 33%; Each element atomic percent of powder cored filament material is: Cr:10-20at.%; P:1-10at.%; B:15-25at.%; C:3-4at.%; Fe: surplus.
2. according to the powder cored filament material of claim 1, it is characterized in that each element atomic percent of powder cored filament material is: Cr:13-20at.%; P:2-10at.%; B:16-25at.%; C:3-4at.%; Fe: surplus.
3. according to the powder cored filament material of claim 2, it is characterized in that each element atomic percent of powder cored filament material is: Cr:13-15at.%; P:2-6at.%; B:16-22at.%; C:3-4at.%; Fe: surplus.
4. utilize the powder cored filament material of claim 1 to prepare a kind of method that contains the phosphorous iron-based coating of amorphous phase, it is characterized in that, comprise the steps:
Step 1, matrix surface is carried out pre-treatment: matrix surface is after granularity 180 order sand paper pre-grinding, and utilizing granularity is that 60 orders palm fibre corundum carries out sandblasting, air pressure 0.5-0.6MPa, time 20s;
Step 2, powder cored filament material is rolling, finally obtain the powder cored filament material that diameter is 2.0mm, over/under tolerance is in 0.03mm;
Step 3 adopts electric arc spraying process to prepare coating, and spraying parameter is: voltage 25-34V; Electric current 180-220A; Spray distance: 190-210mm; Compressed air pressure 0.4-0.6MPa, the preparation coating.
5. according to the method for claim 4, it is characterized in that step 3 spraying parameter is: voltage 30-32V; Electric current 190-200A; Spray distance 200mm; Compressed air pressure 0.5-0.6MPa.
6. a kind of phosphorous iron-based coating of amorphous phase that contains that obtains according to the preparation method of claim 4.
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Cited By (6)
| 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 |
| RU2483138C1 (en) * | 2012-03-22 | 2013-05-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Орловский государственный аграрный университет" (ФГБОУ ВПО Орел ГАУ) | Coating application method |
| CN106435441A (en) * | 2016-09-14 | 2017-02-22 | 常州大学 | Process and technology method for preparing amorphous coating |
| US10308999B2 (en) | 2015-12-03 | 2019-06-04 | Industrial Technology Research Institute | Iron-based alloy coating and method for manufacturing the same |
| RU2710093C1 (en) * | 2019-01-29 | 2019-12-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Орловский государственный аграрный университет имени Н.В. Парахина" | Method of coating with electric arc metallisation |
| RU2715827C1 (en) * | 2019-10-08 | 2020-03-03 | Общество С Ограниченной Ответственностью "Технологические Системы Защитных Покрытий" (Ооо "Тсзп") | Method of electric arc spraying of coating |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2483138C1 (en) * | 2012-03-22 | 2013-05-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Орловский государственный аграрный университет" (ФГБОУ ВПО Орел ГАУ) | Coating application method |
| 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 |
| US10308999B2 (en) | 2015-12-03 | 2019-06-04 | Industrial Technology Research Institute | Iron-based alloy coating and method for manufacturing the same |
| CN106435441A (en) * | 2016-09-14 | 2017-02-22 | 常州大学 | Process and technology method for preparing amorphous coating |
| RU2710093C1 (en) * | 2019-01-29 | 2019-12-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Орловский государственный аграрный университет имени Н.В. Парахина" | Method of coating with electric arc metallisation |
| RU2715827C1 (en) * | 2019-10-08 | 2020-03-03 | Общество С Ограниченной Ответственностью "Технологические Системы Защитных Покрытий" (Ооо "Тсзп") | Method of electric arc spraying of coating |
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Application publication date: 20111123 |