CN1821435A - Magnesium-aluminium composite material and its preparing method - Google Patents
Magnesium-aluminium composite material and its preparing method Download PDFInfo
- Publication number
- CN1821435A CN1821435A CN 200610012409 CN200610012409A CN1821435A CN 1821435 A CN1821435 A CN 1821435A CN 200610012409 CN200610012409 CN 200610012409 CN 200610012409 A CN200610012409 A CN 200610012409A CN 1821435 A CN1821435 A CN 1821435A
- Authority
- CN
- China
- Prior art keywords
- magnesium
- alloy
- aluminium
- composite material
- powder
- 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 present invention is composite Mg-Al material and its preparation process, and belongs to the field of material producing engineering. Specifically, the present invention is the technological prof embedding Mg or Mg alloy in Al powder, Al alloy powder, or the homogeneous mixture of Al powder or Al alloy powder, Al2O3 and NaF; and maintaining at 350-500 deg.c for 30-120min under vacuum or reducing gas protection condition to form compact aluminizing layer on the surface of Mg or Mg alloy. The composite Mg-Al material with Mg or Mg alloy base and surface aluminizing layer is superior to Mg and Mg alloy, which has poor corrosion resistance, excellent shock eliminating performance, electromagnetic shielding performance, etc. similar to that of Mg and Mg alloy, and excellent surface modification performance.
Description
One, technical field
A kind of magnesium-aluminium composite material of the present invention and preparation method thereof belongs to materials processing engineering field.Specifically be by magnesium or magnesium alloy are embedded in the aluminizing medium, in vacuum or have under the condition of reducing gas protection and be incubated, obtaining with magnesium or magnesium alloy is matrix, is the magnesium-aluminium composite material on top layer and preparation method thereof with the aluminized coating.
Two, background technology
Magnesium is the lightest structural metallic materials, and aboundresources is produced conveniently, and the capability of electromagnetic shielding excellence is easy to reclaim.Many excellent properties make magnesium have a wide range of applications in a lot of fields, as automobile, aerospace, IT industry etc., and because its excellent biological compatibility; possibility (the Gong Guifen etc. that can do biomaterial are arranged; [material protection, 2002,35 (10): 129～133]).Yet the corrosion resistance nature extreme difference of magnesium, this makes magnesium and Application of Magnesium be subjected to very big restriction.The surface protection technique that improves at present the corrosion resistance nature of magnesium and Mg alloy surface has chemical conversion film, micro-arc anodic oxidation processing, organic coating and coating etc. (Froes F H, et al.[MineMetalsand MaterSoc.1998, (9): 30～34]).Chemical conversion membrane method treatment agent mostly contains chromium or heavy non-ferrous metal element, thereby has pair environment and human body to cause the limitation of harm in various degree; The technology of micro-arc anodic oxidation treatment process is relatively backward, its power consumption height, and because it uses high-voltage, high current density, this makes the working (finishing) area of single workpiece be restricted; Organic coating and coating use fluorochemical to be activator, through chemical nickel plating, passivation and thermal treatment, coating has good mechanical performance, solidity to corrosion, weldability and to the stability of environment, but the treating processes of this method costs an arm and a leg, and poisonous mostly in the treatment agent.Because aluminium is kept apart matrix and environment from generating fine and close di-aluminium trioxide film down in well-oxygenated environment, and matrix is no longer corroded, and has improved the corrosion resistance nature of self.There has been the people successfully to use hot spray process (Zhang Jin etc. at present, [Chinese mechanical engineering, 2002, (23): 2057～2058]), CVD method (Ch.Christoglou et al.[Sruface and Coatings Technology 184 (2004) 149～155]), magnetron sputtering method (Liu-Ho Chiu, et al.[Surface ﹠amp; CoatingsTechnology 191 (2005) 181～187]) obtained aluminium lamination at magnesium or Mg alloy surface, corrosion experiment shows that the corrosion resistance nature of matrix is greatly improved.But the process complexity of these methods, treating processes costs an arm and a leg, and is not suitable for industrial applications.Though above-mentioned process for modifying surface has all improved the corrosion resistance nature of magnesium or magnesium alloy to some extent; but protect a method (last patent of filing an application that comprises us of magnesium or magnesium alloy substrate by forming aluminum coating; the patent No. is: 200510012634.X) all have complex process to some extent, especially be subjected to the restriction of workpiece geometries influence.Solid oozes, and has the outstanding advantage that technology is easy and not limited by workpiece geometries.Horse children equality has been reported by expanding at the ZM5 Mg alloy surface and has been oozed Al recently, Zn handles method (the horse children equality that improves the matrix corrosion resistance nature, [Rare Metals Materials and engineering, 2005,34 (3): 433～435]), the problem of its existence is treatment time long (12 hours), energy consumption is big, it is basic that resulting infiltration layer remains with magnesium, it is basic not forming with aluminium, be aluminium alloy layer, its raising to the matrix corrosion resistance nature is limited, and the modifiability on surface can also can not get due improvement.Therefore, do not find yet so far and a kind ofly can improve the anticorrosive and finishing performance of magnesium or magnesium alloy largely, again technology simple, be applicable to industrialized mass production, the method for compliance with environmental protection requirements simultaneously.
Three, summary of the invention
A kind of magnesium-aluminium composite material of the present invention, it is characterized in that be by magnesium and Mg alloy surface aluminising preparation be matrix with magnesium or magnesium alloy, be that the aluminium alloy layer+diffusion layer of magnalium intermetallic compounds layer+aluminium in magnesium or magnesium alloy of 1～100 μ m is the magnesium-aluminium composite material that the top layer was constituted with thickness.
The preparation method of described a kind of magnesium-aluminium composite material; it is characterized in that it being magnesium or magnesium alloy system workpiece to be embedded in the encloses container with aluminizing medium; in vacuum or have under the condition of reducing gas protection by aluminising; what obtain is matrix with magnesium or magnesium alloy, and with aluminized coating: the aluminium alloy layer+diffusion layer of magnalium intermetallic compounds layer+aluminium in magnesium or magnesium alloy is the preparation method of the magnesium-aluminium composite material on top layer.
The preparation method of described a kind of magnesium-aluminium composite material is characterized in that it being that the prescription of described aluminizing medium can be aluminium powder, Al alloy powder, aluminium powder and Al alloy powder uniform mixture, Al powder+0～10wt%Al according to a certain percentage
2O
3+ 0～4wt%NaF, Al alloy powder+0～10wt%Al
2O
3The mixture of+0～4wt%NaF or aluminium powder and Al alloy powder+0～10wt%Al
2O
3+ 0～4wt%NaF.
The preparation method of described a kind of magnesium-aluminium composite material is characterized in that it being that described concrete processing step is: with aluminizing medium magnesium or magnesium alloy system workpiece are embedded in the encloses container, place vacuum tightness to be better than 10
-2In the vacuum chamber of Pa, or place one or more the container of mixed gas that has fed reducing gas hydrogen, carbon monoxide, coal gas, at 350～500 ℃ of insulation 30～120min postcooling, promptly obtaining with magnesium or magnesium alloy is that matrix surface aluminized coating thickness is the magnesium-aluminium composite material of 1～100 μ m.
Advantage of the present invention:
The present invention prepares the preparation method of magnesium-aluminium composite material by magnesium and Mg alloy surface aluminising, prepared this be that matrix is the magnesium-aluminium composite material on top layer with the aluminized coating with magnesium or magnesium alloy, overcome the shortcoming of magnesium and magnesium alloy self poor corrosion resistance, and kept performances such as good shock absorbing that magnesium and magnesium alloy have, electromagnetic wave shielding, also obtained advantages such as the modified surface performance of aluminium is good simultaneously.Be metallurgical binding between magnesium and the aluminium, the bonding strength height of aluminized coating and magnesium or magnesium alloy substrate.Employed penetration enhancer can repeatedly use; The aluminizing method technology that is adopted is simple, and constant product quality is easy to control, and production cost is low, is applicable to industrialized mass production, and the outstanding advantage of the workpiece geometries of not being subjected to restriction is arranged.
Four, description of drawings
Fig. 1 is embedded in magnesium system workpiece in the encloses container for adopting pure aluminium powder, places in the vacuum chamber, and vacuum tightness is better than 10
-2Pa, 400 ℃ of insulation 120min postcooling, the scanning electron of magnesium matrix and alitizing layer cross section shows photo.
Five, embodiment
Embodiment 1
Adopt pure aluminium powder that magnesium system workpiece is embedded in the encloses container, place in the vacuum chamber vacuum tightness 3 * 10
-2Pa, 400 ℃ of insulation 120min postcooling, promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.The thickness that electronic scanning is observed as shown in Figure 1 is the aluminized coating of 50 μ m.
Embodiment 2
Adopt Al alloy powder that magnesium system workpiece is embedded in the encloses container, place in the vacuum chamber vacuum tightness 3.5 * 10
-2Pa, 400 ℃ of insulation 100min postcooling, promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 3
Adopt pure aluminium powder that AZ91 magnesium alloy system workpiece is embedded in the encloses container, place in the vacuum chamber vacuum tightness 4.5 * 10
-2Pa, 400 ℃ of insulation 60min postcooling, promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 4
Adopt Al alloy powder that AZ91 magnesium alloy system workpiece is embedded in the encloses container, place in the vacuum chamber vacuum tightness 3.5 * 10
-2Pa, 380 ℃ of insulation 80min postcooling, promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 5
Adopt pure aluminium powder that magnesium system workpiece is embedded in the encloses container, place the encloses container that is connected with hydrogen, 400 ℃ of insulation 120min postcooling, promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 6
Adopt pure aluminium powder that magnesium system workpiece is embedded in the encloses container, place the encloses container that is connected with coal gas, 400 ℃ of insulation 100min postcooling, promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 7
Adopt Al alloy powder that AZ91 magnesium alloy system workpiece is embedded in the encloses container, place the encloses container that is connected with hydrogen, 400 ℃ of insulation 60min postcooling, promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 8
Adopt Al alloy powder that AZ91 magnesium alloy system workpiece is embedded in the encloses container, place the encloses container that is connected with coal gas, 370 ℃ of insulation 90min postcooling, promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 9
Adopt Al powder+5wt%Al
2O
3The powder penetrating agent that+2wt%NaF mixes is embedded in magnesium system workpiece in the encloses container, places in the vacuum chamber vacuum tightness 3.3 * 10
-2Pa, 450 ℃ of insulation 120min postcooling, promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 10
Adopt Al alloy powder+5wt%Al
2O
3The powder penetrating agent that+2wt%NaF mixes is embedded in magnesium system workpiece in the encloses container, places in the vacuum chamber vacuum tightness 3.43 * 10
-2Pa, 440 ℃ of insulation 100min postcooling, promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 11
Adopt Al powder+3wt%Al
2O
3The powder penetrating agent that+3wt%NaF mixes is embedded in AZ91 magnesium alloy system workpiece in the encloses container, places in the vacuum chamber vacuum tightness 4.5 * 10
-2Pa, 400 ℃ of insulation 70min postcooling, promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 12
Adopt aluminium alloy Al powder+3wt%Al
2O
3The powder penetrating agent that+3wt%NaF mixes is embedded in AZ91 magnesium alloy system workpiece in the encloses container, places in the vacuum chamber vacuum tightness 4.5 * 10
-2Pa, 400 ℃ of insulation 70min postcooling, promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 13
Adopt Al powder+4wt%Al
2O
3The powder penetrating agent that+4wt%NaF mixes is embedded in magnesium system workpiece in the encloses container, places the encloses container that is connected with hydrogen, 500 ℃ of insulation 40min postcooling, and promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 14
Adopt Al alloy powder+4wt%Al
2O
3The powder penetrating agent that+4wt%NaF mixes is embedded in magnesium system workpiece in the encloses container, places the encloses container that is connected with coal gas, 500 ℃ of insulation 50min postcooling, and promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 15
Adopt Al powder+4wt%Al
2O
3The powder penetrating agent that mixes is embedded in AZ91 magnesium alloy system workpiece in the encloses container, places the encloses container that is connected with hydrogen, 450 ℃ of insulation 90min postcooling, and promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 16
Adopt aluminium alloy Al powder+4wt%Al
2O
3The powder penetrating agent that mixes is embedded in AZ91 magnesium alloy system workpiece in the encloses container, places the encloses container that is connected with coal gas, 450 ℃ of insulation 90min postcooling, and promptly obtaining with the AZ91 magnesium alloy is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Embodiment 17
Adopt Al alloy powder+40wt% aluminium powder+4wt%Al
2O
3The powder penetrating agent that+4wt%NaF mixes is embedded in magnesium system workpiece in the encloses container, places the encloses container that is connected with coal gas, 450 ℃ of insulation 90min postcooling, and promptly obtaining with magnesium is that matrix is the magnesium-aluminium composite material on surface with the aluminized coating.
Claims (4)
1. magnesium-aluminium composite material, it is characterized in that be by magnesium and Mg alloy surface aluminising preparation be matrix with magnesium or magnesium alloy, be that the aluminium alloy layer+diffusion layer of magnalium intermetallic compounds layer+aluminium in magnesium or magnesium alloy of 1～100 μ m is the magnesium-aluminium composite material that the top layer was constituted with thickness.
2. the preparation method of the described a kind of magnesium-aluminium composite material of claim 1; it is characterized in that it being magnesium or magnesium alloy system workpiece to be embedded in the encloses container with aluminizing medium; in vacuum or have under the condition of reducing gas protection by aluminising; what obtain is matrix with magnesium or magnesium alloy, and with aluminized coating: the aluminium alloy layer+diffusion layer of magnalium intermetallic compounds layer+aluminium in magnesium or magnesium alloy is the preparation method of the magnesium-aluminium composite material on top layer.
3. according to the preparation method of the described a kind of magnesium-aluminium composite material of claim 2, it is characterized in that it being that the prescription of described aluminizing medium is Al powder+0～10wt%Al
2O
3+ 0～4wt%NaF, Al alloy powder+0～10wt%Al
2O
3The mixture of+0～4wt%NaF or aluminium powder and Al alloy powder+0～10wt%Al
2O
3+ 0～4wt%NaF.
4. according to the preparation method of the described a kind of magnesium-aluminium composite material of claim 2, it is characterized in that it being that concrete processing step is: with aluminizing medium magnesium or magnesium alloy system workpiece are embedded in the encloses container, place vacuum tightness less than 10
-2In the vacuum chamber of Pa, or place one or more the container of mixed gas that has fed reducing gas hydrogen, carbon monoxide, coal gas, at 350～500 ℃ of insulation 30～120min postcooling, promptly obtaining with magnesium or magnesium alloy is that matrix surface aluminized coating thickness is the magnesium-aluminium composite material of 1～100 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012409 CN1821435A (en) | 2006-02-15 | 2006-02-15 | Magnesium-aluminium composite material and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012409 CN1821435A (en) | 2006-02-15 | 2006-02-15 | Magnesium-aluminium composite material and its preparing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1821435A true CN1821435A (en) | 2006-08-23 |
Family
ID=36923005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610012409 Pending CN1821435A (en) | 2006-02-15 | 2006-02-15 | Magnesium-aluminium composite material and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1821435A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748357B (en) * | 2008-12-04 | 2012-03-07 | 国立云林科技大学 | Magnesium alloy surface treatment method |
| CN103484816A (en) * | 2012-06-13 | 2014-01-01 | 常州兰翔机械有限责任公司 | Calorizing impregnation agent for K4648 alloy and preparation method thereof, and calorizing method |
| CN105779918A (en) * | 2016-05-12 | 2016-07-20 | 东莞市联洲知识产权运营管理有限公司 | Preparation method for high-strength high-electromagnetic-shielding magnesium-based composite material |
| CN106218183A (en) * | 2016-07-20 | 2016-12-14 | 攀钢集团研究院有限公司 | The preparation method of high-strength bimetal composite plate |
| CN111876723A (en) * | 2020-08-11 | 2020-11-03 | 盐城科奥机械有限公司 | Zinc impregnation method and anti-corrosion metal part |
| CN112663008A (en) * | 2020-11-30 | 2021-04-16 | 江苏理工学院 | Method for preparing magnesium-aluminum composite board by utilizing radio frequency magnetic control |
| CN114606552A (en) * | 2022-05-07 | 2022-06-10 | 山西银光华盛镁业股份有限公司 | Preparation method of magnesium alloy with conductive anodic oxide film on surface |
-
2006
- 2006-02-15 CN CN 200610012409 patent/CN1821435A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748357B (en) * | 2008-12-04 | 2012-03-07 | 国立云林科技大学 | Magnesium alloy surface treatment method |
| CN103484816A (en) * | 2012-06-13 | 2014-01-01 | 常州兰翔机械有限责任公司 | Calorizing impregnation agent for K4648 alloy and preparation method thereof, and calorizing method |
| CN105779918A (en) * | 2016-05-12 | 2016-07-20 | 东莞市联洲知识产权运营管理有限公司 | Preparation method for high-strength high-electromagnetic-shielding magnesium-based composite material |
| CN106218183A (en) * | 2016-07-20 | 2016-12-14 | 攀钢集团研究院有限公司 | The preparation method of high-strength bimetal composite plate |
| CN111876723A (en) * | 2020-08-11 | 2020-11-03 | 盐城科奥机械有限公司 | Zinc impregnation method and anti-corrosion metal part |
| CN111876723B (en) * | 2020-08-11 | 2023-08-29 | 盐城科奥机械有限公司 | Zinc impregnation method and anti-corrosion metal piece |
| CN112663008A (en) * | 2020-11-30 | 2021-04-16 | 江苏理工学院 | Method for preparing magnesium-aluminum composite board by utilizing radio frequency magnetic control |
| CN112663008B (en) * | 2020-11-30 | 2022-12-23 | 江苏理工学院 | Method for preparing magnesium-aluminum composite board by utilizing radio frequency magnetic control |
| CN114606552A (en) * | 2022-05-07 | 2022-06-10 | 山西银光华盛镁业股份有限公司 | Preparation method of magnesium alloy with conductive anodic oxide film on surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1821435A (en) | Magnesium-aluminium composite material and its preparing method | |
| Wang et al. | Preparation and corrosion resistance of electroless Ni-P/SiC functionally gradient coatings on AZ91D magnesium alloy | |
| CN109338168B (en) | Preparation method of complex-phase reinforced aluminum-based composite material | |
| Falcon et al. | Corrosion behavior of Mg-Al/TiC composites in NaCl solution | |
| Yu et al. | Study on the rare earth sealing procedure of the porous film of anodized Al6061/SiCp | |
| CN109735887B (en) | Preparation method of magnesium alloy magnesium-manganese hydrotalcite/micro-arc oxidation corrosion-resistant coating | |
| CN1207436C (en) | Method for mfg. Cu/Ti3SiC2 composite material by chemical copper plating | |
| Barakat et al. | Effect of Al2O3 coated Cu nanoparticles on properties of Al/Al2O3 composites | |
| CN109022868A (en) | Preparation method for in-situ synthesis of Cu-graphene heteromer reinforced aluminum-based composite material | |
| CN1709688A (en) | Anticorrosive magnesium-aluminium composite material and its preparing method | |
| US8974857B2 (en) | Methods for manufacturing of cobalt boride coating layer on surface of steels by using a pack cementation process | |
| CN102352502A (en) | Thermal diffusing permeation method of inorganic rare earth molten salt on surface of magnesium alloy | |
| CN1664148A (en) | Ferro-trialunminum intermetallic compound and carbon nanotube composites and method for preparing same | |
| Rashid et al. | Tailoring microstructure and mechanical properties of aluminum matrix composites reinforced with novel Al/CuFe multi-layered core-shell particles | |
| CN113445098A (en) | Method for improving wear resistance and self-lubricating property of high-entropy alloy by using electrochemical liquid boronizing | |
| Couperthwaite et al. | Cold-spray coating of an Fe-40 at.% Al alloy with additions of ruthenium | |
| Polkin et al. | New materials produced by mechanical alloying | |
| CN101307423A (en) | Process for forming TiB2 ceramic composite material at metal surface | |
| Kim et al. | Data on the characterization of Raney nickel powder and Raney-nickel-coated electrodes prepared by atmospheric plasma spraying for alkaline water electrolysis | |
| CN115125595B (en) | Preparation method of titanium-manganese alloy coating | |
| RU2778544C1 (en) | Method for boroaliting carbon steel | |
| CN114686804B (en) | Composite coating of oxide dispersion reinforced steel and preparation method thereof | |
| Zheng et al. | Investigation of the 600 C isothermal section of the Fe–Al–Ce ternary system | |
| CN1386891A (en) | Process for co-diffusing aluminium-rere-earth element in silicon titanocarbide material | |
| Tang et al. | The mechanical properties of magnesium matrix composites reinforced with 10 wt.% W14Al86 alloy particles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |