CN100368589C - Method for preparing coat in use for nickel based amorhpous alloy - Google Patents
Method for preparing coat in use for nickel based amorhpous alloy Download PDFInfo
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- CN100368589C CN100368589C CNB200410021557XA CN200410021557A CN100368589C CN 100368589 C CN100368589 C CN 100368589C CN B200410021557X A CNB200410021557X A CN B200410021557XA CN 200410021557 A CN200410021557 A CN 200410021557A CN 100368589 C CN100368589 C CN 100368589C
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Abstract
The present invention relates to a method for preparing nickel-base amorphous coating layers, which takes amorphous powder as raw material adopts a supersonic speed hot spraying method to prepare amorphous coating layers. The present invention is characterized in that amorphous powder is composed of elements and unavoidable impurities, which have the quality percentage of 27 to 29% of Zr, 10 to 13% of Ti, 0.5 to 1% of Si, 4 to 6% of Sn and the other percentage of Ni. The technique of the present invention has the advantage of wider possible application range and can provide good potential method and thought for preparing the amorphous coating layers.
Description
Technical field:
The present invention relates to the Ni base noncrystal alloy, a kind of technological method for preparing amorphous alloy coating is provided especially, and the thinking that makes the excellent properties of non-crystaline amorphous metal be able in industry, use.
Background technology:
Since non-crystaline amorphous metal is found, because its particular structure and performance have caused people's very big concern.Especially since the nineties in 20th century,, all the more so owing to large block amorphous appearance with high glass forming ability.But work hardening, takes place, and starting of single shear zone can be taken place as crystal boundary and dislocation owing to there is not lattice defect in non-crystaline amorphous metal unlike conventional alloys when distortion, brittle rupture just takes place when not reaching yield strength, causes catastrophic inefficacy.Like this, amorphous is restricted as the application of structured material, and therefore, amorphous should be the research direction of tool prospect as the application of coating.In addition, non-crystaline amorphous metal has good wear and corrosion behavior, and this has also supported the possibility of non-crystaline amorphous metal as surface applications.In early days, people prepare amorphous alloy coating with the method for laser treatment and sputter, mainly concentrate on binary alloy and minority multicomponent alloy, but, the large-block amorphous alloy component that these technology do not utilize recent development to get up, and himself limitation is arranged, be of limited application.
Summary of the invention:
The object of the present invention is to provide a kind of technology for preparing supercoat, the range of application that this technology is possible is more extensive, can provide a kind of good potential method and thinking for the preparation amorphous alloy coating.
The invention provides a kind of preparation method of ni-based amorphous alloy coating, with the amorphous powdered alloy is raw material, adopt the supersonic speed heat spraying method to prepare amorphous alloy coating, it is characterized in that: described amorphous powdered alloy is made up of following element and unavoidable impurities, mass percent:
Zr 27～29；
Ti 10～13；
Si 0.5～1；
Sn 4～6；
The Ni surplus.
Ni-based amorphous alloy coating of the present invention, that has utilized that recent development gets up has high glass forming ability (～3mm) a Ni base large amorphous alloy composition.That has adopted that recent development gets up replaces the supersonic speed of oxygen with air (the spray powders granularity is :+16-45 μ m for High Velocity Air Fuel, HVAF) hot-spraying techniques.Because crystallization and oxidation in spraying process, its amorphous content is about: 40%～60%.
Hot-spraying techniques is industrial a kind of technology for preparing supercoat commonly used, applied range, and can make full use of the large-block amorphous alloy component that recent development is got up, therefore, it is a kind of good potential technology of preparation amorphous alloy coating.We utilize the gas atomization technology to prepare amorphous powdered alloy, method with the supersonic speed thermospray prepares amorphous alloy coating then, and make full use of the large block amorphous composition that recent development is got up, developing industry amorphous alloy coating with high glass forming ability.Why selecting the supersonic speed hot-spraying techniques, is the coating densification because of its preparation, and voidage is low, helps the application of coating in the aqueous corrosion medium.
Description of drawings:
Accompanying drawing 1 is the X-ray diffraction result of the coating of the Ni-Zr-Ti-Si-Sn non-crystaline amorphous metal of gas atomization preparation and supersonic speed (HVAF) thermospray preparation;
Accompanying drawing 2 is cross section scanning electron microscope (SEM) figure of coating;
Accompanying drawing 3 is the DSC figure of coating and powder;
Accompanying drawing 4 is that coating is at 0.05MH
2SO
4+ 0.05MNa
2SO
4Polarization curve in the aqueous solution.
Embodiment:
Embodiment 1
At first make mother alloy by required composition with the method for vacuum induction melting, alloying constituent is Ni
53.53Zr
28.2Ti
11.9Si
0.86Sn
5.51(wt.%), mother alloy is put into the atomizing stove, prepare amorphous powdered alloy by the gas atomization technology.Its X-ray diffraction and DSC result such as Fig. 1,3.Shown that by figure powder (＜50 μ m) is complete non-crystalline state, coating is the part non-crystalline state.Relatively its crystallization heat can get that the content of amorphous phase is about 40%～60% in the coating.
Embodiment 2
Adopt supersonic speed (HVAF) hot-spraying techniques to prepare amorphous alloy coating, the spray powders granularity is :+16-45 μ m.This technology replaces oxygen with air, has reduced spraying temperature, and coating does not have unrelieved stress, and the coating oxygen level is low.The X-ray diffraction of coating, scanning electron microscope in cross section (SEM) and DSC result such as Fig. 1,2,3.As seen from the figure, the coating structure densification, voidage is low.
Embodiment 3
With the corrosive nature of electrochemical method survey coating, its polarization curve such as Fig. 4., and contrast with corresponding amorphous ribbon and electrodeposited chromium sample.As seen from the figure, coating has good passivation behavior in this solution, solidity to corrosion is preferably arranged, and its solidity to corrosion is than amorphous ribbon difference, but better than electrodeposited chromium sample.
Embodiment 4
At first make mother alloy by required composition with the method for vacuum induction melting, alloying constituent is Ni
56.9Zr
27.5Ti
10.3Si
0.7Sn
4.6(wt.%), mother alloy is put into the atomizing stove, prepare amorphous powdered alloy by the gas atomization technology.Adopt supersonic speed (HVAF) hot-spraying techniques to prepare amorphous alloy coating.
Embodiment 5
At first make mother alloy by required composition with the method for vacuum induction melting, alloying constituent is Ni
52.4Zr
28.6Ti
12.5Si
0.9Sn
5.6(wt.%), mother alloy is put into the atomizing stove, prepare amorphous powdered alloy by the gas atomization technology.Adopt supersonic speed (HVAF) hot-spraying techniques to prepare amorphous alloy coating.
Claims (4)
1. the preparation method of a ni-based amorphous alloy coating, with the amorphous powdered alloy is raw material, adopt the supersonic speed heat spraying method to prepare amorphous alloy coating, it is characterized in that: the content of amorphous phase is 40%～60% in the coatings prepared, described amorphous powdered alloy is made up of following element and unavoidable impurities, mass percent:
Zr 27～29；
Ti 10～13；
Si 0.5～1；
Sn 4～6；
The Ni surplus.
2. according to the preparation method of the described ni-based amorphous alloy coating of claim 1, it is characterized in that: described amorphous powdered alloy prepares with the gas atomization technology.
3. according to the preparation method of the described ni-based amorphous alloy coating of claim 2, it is characterized in that: the size range of described amorphous powdered alloy is :+16-45 μ m.
4. according to the preparation method of the described ni-based amorphous alloy coating of claim 1, it is characterized in that: described supersonic speed heat spraying method prepares in the amorphous alloy coating process, uses the air replace oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410021557XA CN100368589C (en) | 2004-07-27 | 2004-07-27 | Method for preparing coat in use for nickel based amorhpous alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410021557XA CN100368589C (en) | 2004-07-27 | 2004-07-27 | Method for preparing coat in use for nickel based amorhpous alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727513A CN1727513A (en) | 2006-02-01 |
| CN100368589C true CN100368589C (en) | 2008-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB200410021557XA Expired - Fee Related CN100368589C (en) | 2004-07-27 | 2004-07-27 | Method for preparing coat in use for nickel based amorhpous alloy |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8389059B2 (en) * | 2009-04-30 | 2013-03-05 | Chevron U.S.A. Inc. | Surface treatment of amorphous coatings |
| CN102816913B (en) * | 2012-09-04 | 2013-11-13 | 北京理工大学 | Method for improving plasticity of amorphous alloy through supersonic particle bombarding (SPB) technique |
| CN107385364A (en) * | 2017-06-30 | 2017-11-24 | 潘海龙 | A kind of amorphous coating powder used for hot spraying |
| CN107574400A (en) * | 2017-08-26 | 2018-01-12 | 芜湖鼎瀚再制造技术有限公司 | Glass mold is remanufactured with ni-based self-fluxing alloy powder and its welding procedure |
| CN114606451B (en) * | 2022-03-01 | 2023-02-21 | 盘星新型合金材料(常州)有限公司 | Ni-based amorphous alloy powder and gas atomization method preparation method thereof |
| CN114686793B (en) * | 2022-03-08 | 2023-05-19 | 辽宁石油化工大学 | High-compactness nickel-based completely amorphous coating and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53104897A (en) * | 1977-02-25 | 1978-09-12 | Toshiba Corp | Magnetic head |
-
2004
- 2004-07-27 CN CNB200410021557XA patent/CN100368589C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53104897A (en) * | 1977-02-25 | 1978-09-12 | Toshiba Corp | Magnetic head |
Non-Patent Citations (2)
| Title |
|---|
| 化学镀镍基合金的组织和性能的研究. 张恒华，张晓燕，陈大明，魏绍琴.上海大学学报（自然科学版），第4卷第3期. 1998 * |
| 等离子喷涂镍基合金非晶涂层的组织与性能. 陈桂云，周序科，闻立时，张永昌.腐蚀科学与防护技术，第4卷第3期. 1992 * |
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Granted publication date: 20080213 |