CN104946952A - Co3O4-WC-Mo nanometer material and preparation method thereof - Google Patents
Co3O4-WC-Mo nanometer material and preparation method thereof Download PDFInfo
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- CN104946952A CN104946952A CN201510353686.7A CN201510353686A CN104946952A CN 104946952 A CN104946952 A CN 104946952A CN 201510353686 A CN201510353686 A CN 201510353686A CN 104946952 A CN104946952 A CN 104946952A
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- co3o4
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- nanometer
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 title abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000002086 nanomaterial Substances 0.000 claims description 20
- 239000011573 trace mineral Substances 0.000 claims description 12
- 235000013619 trace mineral Nutrition 0.000 claims description 12
- 238000012387 aerosolization Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 11
- 238000002474 experimental method Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 239000002077 nanosphere Substances 0.000 abstract 2
- 239000013543 active substance Substances 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 abstract 1
- 238000009689 gas atomisation Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 12
- 239000011159 matrix material Substances 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000002103 nanocoating Substances 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002707 nanocrystalline material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to a Co3O4-WC-Mo nanometer material and a preparation method thereof. The material comprises the following components in parts by mass: 45-65 parts of Co3O4, 20-25 parts of WC, 10-35 parts of Mo, 1 part of Cr, and 0.15-0.66 part of microelements, wherein the microelements are C, Si, Mn and Fe. The preparation method comprises the following steps: (1) Co3O4-WC-Mo nanospheres are prepared by a gas atomization method; and then, Cr is added; and (2) the nanospheres prepared in the step (1) are mixed with C, Si, Mn and Fe by an active agent protection method to prepare nanometer powder. The Co3O4-WC-Mo nanometer material and the preparation method thereof have the following beneficial effects: through different matching experiments, the hardness of a coating layer prepared by the material and the method reaches HRC72, and the wear resistance is excellent; and the Co3O4-WC-Mo nanometer material is suitable for the surface modification spraying of a high-temperature-resistant workpiece, has a certain iron magnetism and insulation performance, and can be applied to several special alloy materials.
Description
Technical field
The present invention relates to technical field of hot, is a kind of Co specifically
3o
4-WC-Mo nano material and preparation method thereof.
Background technology
Thermospray is a kind of surface strengthening technology, is the important component part of surface engineering technology, is the new technology project that China's emphasis is promoted always.It refers to a series of process, in these processes, trickle and dispersion metal or nonmetallic nano material, with one fusing or semi-molten state, deposit to a kind of through preparation matrix surface, form certain spray deposited layer.
Hot-spraying techniques has the following advantages: 1. Surface Engineering and being combined in design of material of multiple matrix material have obvious advantage; 2. the chemical composition of material can be adjusted easily; 3. the matrix material of special construction performance can be had by dynamic formation; 4. the compound of multiple material and multiple technologies can obtain excellent performance.Therefore the research of thermal spraying material is the deciding factor of 21 century thermospray development, is also the driving of hot-spraying techniques development.
But along with people's improving constantly engineering mechanical device performance requriements, the application of hot-spraying techniques is limited to the development of thermal spraying material and processing unit.In thermal spraying material, many spray material poor bonding strength, void content be high, wear no resistance, and can not meet the requirement of people to engineering mechanical device performance.
Summary of the invention
In order to solve the problems such as conventional coatings hardness is lower, the invention provides a kind of Co
3o
4-WC-Mo nano material and preparation method thereof.
Technical problem to be solved by this invention realizes by the following technical solutions:
Co
3o
4-WC-Mo nano material, the mass fraction of its component and each component is Co
3o
4account for 45-65 part, WC accounts for 20-25 part, Mo accounts for 10-35 part, Cr accounts for 1 part, trace element accounts for 0.15-0.66 part.
Described trace element is C, Si, Mn, Fe.
Described Cr adds as additive, can improve material hardness.
Co
3o
4-WC-Mo nano material is a kind of ceramal nanocrystalline material, wherein containing cobalt element, cobalt material melting point compared with high, hardness large, have ferromagnetic, tensile strength, machining property, thermodynamic property and electrochemical behavior aspect performance are comparatively superior.Thus, add toughness and hot hardness that cobalt element can improve matrix to a great extent, improve intensity and the wear resisting property of material.
The interpolation of W elements material mainly increases the hot hardness of material, strengthens its resistant to elevated temperatures performance.
Molybdenum element mainly increases toughness of material, strengthens anchoring strength of coating.
Co
3o
4the preparation method of-WC-Mo nano material, comprises the following steps:
(1) aerosolization legal system is adopted to obtain Co
3o
4the nanometer ball of-WC-Mo, then adds Cr;
(2) nanometer ball obtained in step (1) employing promoting agent protection method mixed C, Si, Mn, Fe are obtained nanometer powder.
The invention has the beneficial effects as follows: the nano material heterogeneous microstructure that the present invention makes is mellow and full spherical, be evenly distributed, particle is complete, there is good weave construction and good macro property.
Through different ratio experiment, the coating hardness that the present invention makes can reach HRC72, and wear resistance is superior, is applicable to the spraying of resistant to elevated temperatures workpiece surface upgrading, has certain ferromegnetism and insulating property, can be used on some special alloy materials.The bonding strength of the coating that the present invention makes, grasping force are higher, and coating thickness can reach 3 millimeters, and density is good.
Gained nano material of the present invention is better than conventional washcoat material, and hardness is high, wear resistance is good has larger progress compared with conventional alloys material.This shows the Co prepared
3o
4-WC-Mo coating has excellent wear-resistant abrasion resistance properties, can be widely used in industrial production and aerospace field.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the present invention's weave construction under a scanning electron microscope and crystal morphology.
Embodiment
The technique means realized to make the present invention and creation characteristic are easy to understand, and set forth further below to the present invention.
Embodiment one
Co
3o
4-WC-Mo nano material, the mass fraction of its component and each component is Co
3o
4account for 45 parts, WC accounts for 25 parts, Mo accounts for 10 parts, Cr accounts for 1 part, trace element accounts for 0.15 part;
Described trace element is C, Si, Mn, Fe.
Co
3o
4the preparation method of-WC-Mo nano material, comprises the following steps:
(1) aerosolization legal system is adopted to obtain Co
3o
4the nanometer ball of-WC-Mo, then adds Cr;
(2) nanometer ball obtained in step (1) employing promoting agent protection method mixed C, Si, Mn, Fe are obtained nanometer powder.
Embodiment two
Co
3o
4-WC-Mo nano material, the mass fraction of its component and each component is Co
3o
4account for 65 parts, WC accounts for 20 parts, Mo accounts for 35 parts, Cr accounts for 1 part, trace element accounts for 0.34 part;
Described trace element is C, Si, Mn, Fe.
Co
3o
4the preparation method of-WC-Mo nano material, with embodiment one.
Embodiment three
Co
3o
4-WC-Mo nano material, the mass fraction of its component and each component is Co
3o
4account for 57 parts, WC accounts for 23 parts, Mo accounts for 25 parts, Cr accounts for 1 part, trace element accounts for 0.46 part;
Described trace element is C, Si, Mn, Fe.
A kind of Co
3o
4the preparation method of-WC-Mo nano material, with embodiment one.
Embodiment four
Co
3o
4-WC-Mo nano material, the mass fraction of its component and each component is Co
3o
4account for 50 parts, WC accounts for 24 parts, Mo accounts for 13 parts, Cr accounts for 1 part, trace element accounts for 0.66 part;
Described trace element is C, Si, Mn, Fe.
Co
3o
4the preparation method of-WC-Mo nano material, with embodiment one.
Adopt plasma spraying technology obtained Co on the rod class workpiece being matrix with 20Co steel
3o
4-WC-Mo nano coating, the matrix with described coating and bonding strength, microhardness, void content and the abrasive wear resistance contrast and experiment without the matrix of described coating are in table 1:
Table 1 Co
3o
4the performance comparison experimental result of-WC-Mo nano coating and 20Co steel matrix:
| Experimental group is numbered | Porosity (AREA%) | Bonding strength (MPa) | Microhardness (HV) |
| 1 | 0.475 | 66.7 | 1016 |
| 2 | 0.563 | 65.9 | 963 |
| 3 | 0.554 | 65.3 | 975 |
| 4 | 0.607 | 64.8 | 960 |
| Mean value | 0.550 | 65.7 | 979 |
| Comparative group | 0.835 | 29.6 | 481 |
Adopt plasma spraying technology obtained Co on the rod class workpiece being matrix with 20Co steel
3o
4-WC-Mo coating, the abrasion loss contrast and experiment of the matrix with described coating and the matrix without described coating is in table 2:
Table 2 Co
3o
4the abrasion loss contrast and experiment of-WC-Mo nano coating and 20Co steel matrix:
| Experimental group is numbered | Before wearing and tearing (g) | After wearing and tearing (g) | Abrasion loss (g) |
| 1 | 74.4663 | 74.4521 | 0.0142 |
| 2 | 74.4457 | 74.4316 | 0.0141 |
| 3 | 74.2678 | 74.2436 | 0.0142 |
| 4 | 74.6986 | 74.6941 | 0.0145 |
| Comparative group | 74.4785 | 74.4442 | 0.0343 |
From table 1 and table 2, Co
3o
4the properties of coating that-WC-Mo nano material is made is excellent, and wear resistance is good.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1.Co
3o
4-WC-Mo nano material, is characterized in that: the mass fraction of its component and each component is Co
3o
4account for 45-65 part, WC accounts for 20-25 part, Mo accounts for 10-35 part, Cr accounts for 1 part, trace element accounts for 0.15-0.66 part;
Described trace element is C, Si, Mn, Fe.
2.Co
3o
4the preparation method of-WC-Mo nano material, is characterized in that: comprise the following steps:
(1) aerosolization legal system is first adopted to obtain Co
3o
4the nanometer ball of-WC-Mo, then adds Cr;
(2) nanometer ball obtained in step (1) employing promoting agent protection method mixed C, Si, Mn, Fe are obtained nanometer powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353686.7A CN104946952A (en) | 2015-06-24 | 2015-06-24 | Co3O4-WC-Mo nanometer material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353686.7A CN104946952A (en) | 2015-06-24 | 2015-06-24 | Co3O4-WC-Mo nanometer material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104946952A true CN104946952A (en) | 2015-09-30 |
Family
ID=54162011
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510353686.7A Pending CN104946952A (en) | 2015-06-24 | 2015-06-24 | Co3O4-WC-Mo nanometer material and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226881A (en) * | 1996-06-04 | 1999-08-25 | Omg美国公司 | Metallic carbide-group VIII metal powder and its preparation |
| CN101298654A (en) * | 2008-06-30 | 2008-11-05 | 钢铁研究总院 | Ceramic-phase-containing iron-based amorphous nanocrystalline composite coating and preparation thereof |
| CN102319894A (en) * | 2011-08-11 | 2012-01-18 | 哈尔滨工业大学 | Abrasion-resistant alloy cake containing ceramic particles and application thereof |
| US20120205874A1 (en) * | 2006-03-15 | 2012-08-16 | United Technologies Corporation | Wear-resistant coating |
| CN104388877A (en) * | 2014-10-30 | 2015-03-04 | 安徽鼎恒再制造产业技术研究院有限公司 | Ni60B-WC-Mo nano coating and preparation method thereof |
-
2015
- 2015-06-24 CN CN201510353686.7A patent/CN104946952A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226881A (en) * | 1996-06-04 | 1999-08-25 | Omg美国公司 | Metallic carbide-group VIII metal powder and its preparation |
| US20120205874A1 (en) * | 2006-03-15 | 2012-08-16 | United Technologies Corporation | Wear-resistant coating |
| CN101298654A (en) * | 2008-06-30 | 2008-11-05 | 钢铁研究总院 | Ceramic-phase-containing iron-based amorphous nanocrystalline composite coating and preparation thereof |
| CN102319894A (en) * | 2011-08-11 | 2012-01-18 | 哈尔滨工业大学 | Abrasion-resistant alloy cake containing ceramic particles and application thereof |
| CN104388877A (en) * | 2014-10-30 | 2015-03-04 | 安徽鼎恒再制造产业技术研究院有限公司 | Ni60B-WC-Mo nano coating and preparation method thereof |
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Application publication date: 20150930 |