CN101831564B - A method of preparing TiAl3 reinforced aluminum matrix composites by in-situ reaction - Google Patents
A method of preparing TiAl3 reinforced aluminum matrix composites by in-situ reaction Download PDFInfo
- Publication number
- CN101831564B CN101831564B CN2010101600118A CN201010160011A CN101831564B CN 101831564 B CN101831564 B CN 101831564B CN 2010101600118 A CN2010101600118 A CN 2010101600118A CN 201010160011 A CN201010160011 A CN 201010160011A CN 101831564 B CN101831564 B CN 101831564B
- Authority
- CN
- China
- Prior art keywords
- melt
- tial3
- temperature
- graphite
- 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.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 7
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 7
- 239000011159 matrix material Substances 0.000 title claims description 9
- 229910010039 TiAl3 Inorganic materials 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 21
- 239000010439 graphite Substances 0.000 claims abstract description 21
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 239000010936 titanium Substances 0.000 claims abstract description 9
- 229910001610 cryolite Inorganic materials 0.000 claims abstract description 8
- 239000000155 melt Substances 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011812 mixed powder Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract 2
- 229910010038 TiAl Inorganic materials 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
技术领域 technical field
本发明属于金属材料制备领域，特别涉及铝基复合材料的制备方法。The invention belongs to the field of metal material preparation, and in particular relates to a preparation method of an aluminum-based composite material.
背景技术 Background technique
颗粒增强铝基复合材料具有比强度、比刚度高、高耐磨性、高的减振性等许多优点。TiAl3因其具有良好的热电性能同时又具有高熔点、高硬度、高的弹性模量和价格低廉等特点，是理想的增强相，为广大学者所关注。原位反应法制备的颗粒增强铝基复合材料中Ti和Al会自发进行化学反应，方程式为：Ti(s)+3Al(l)＝TiAl3(s)。原位反应生成的复合材料具有界面结合性好、无污染、热稳定性好、节约成本等特点，因而逐渐受到重视。Particle-reinforced aluminum matrix composites have many advantages such as specific strength, high specific stiffness, high wear resistance, and high vibration damping. TiAl 3 is an ideal reinforcing phase because of its good thermoelectric properties, high melting point, high hardness, high elastic modulus and low price, and has attracted the attention of many scholars. Ti and Al in the particle-reinforced aluminum matrix composite prepared by the in-situ reaction method will undergo a chemical reaction spontaneously, and the equation is: Ti(s)+3Al(l)=TiAl 3 (s). Composite materials produced by in-situ reaction have the characteristics of good interfacial bonding, no pollution, good thermal stability, and cost saving, so they have gradually attracted attention.
发明内容 Contents of the invention
本发明的目的是提供一种用原位反应制备TiAl3增强铝基复合材料的方法。The purpose of the present invention is to provide a method for preparing TiAl 3 reinforced aluminum matrix composite material by in-situ reaction.
本发明所述的制备方法为：首先将冰晶石粉(Na3AlF6)与钛粉(Ti)按1～1.5∶1的质量比均匀混合、烘干；将7075铝合金混合放入石墨坩锅内加热、熔化，在温度850～880℃时，将上述混合粉末按8～12wt.％加入到7075铝合金熔体中保温15～20min后，用石墨棒搅拌20～30min，再保温25～30min；将熔体温度降至740～750℃，浇入到石墨模型中，待冷却后取样。The preparation method of the present invention is as follows: first, uniformly mix cryolite powder (Na 3 AlF 6 ) and titanium powder (Ti) at a mass ratio of 1 to 1.5:1, and dry; mix 7075 aluminum alloy into a graphite crucible Internal heating and melting, at a temperature of 850-880°C, add the above-mentioned mixed powder at 8-12wt.% to the 7075 aluminum alloy melt and keep it warm for 15-20 minutes, then stir it with a graphite rod for 20-30 minutes, and then keep it warm for 25-30 minutes ; Lower the temperature of the melt to 740-750°C, pour it into a graphite model, and take a sample after cooling.
本发明得到的TiAl3/7075铝基复合材料组织中晶粒细小，且生成的TiAl3增强相分布均匀，呈小方块状。此工艺成本低、简单；安全可靠；操作方便。The crystal grains in the TiAl 3 /7075 aluminum-based composite material structure obtained by the invention are fine, and the generated TiAl 3 reinforcement phase is evenly distributed and is in the shape of small squares. The process is low in cost, simple, safe and reliable, and easy to operate.
附图说明 Description of drawings
图1为本发明一个实施例条件下制备的TiAl3/7075铝基复合材料显微组织。Fig. 1 is the microstructure of the TiAl 3 /7075 aluminum matrix composite prepared under the conditions of an embodiment of the present invention.
图2为图1放大后的TiAl3/7075铝基复合材料中分布情况。Figure 2 is the enlarged TiAl 3 /7075 aluminum matrix composite material in Figure 1 Distribution.
具体实施方式 Detailed ways
本发明将通过以下实施例作进一步说明。The invention will be further illustrated by the following examples.
实施例1。Example 1.
首先将冰晶石粉(Na3AlF6)与钛粉(Ti)按1～1的质量比均匀混合、烘干；将7075铝合金混合放入石墨坩锅内加热、熔化，在温度850℃时，将上述混合粉末按8wt.％加入到7075铝合金熔体中保温15min后，用石墨棒搅拌20min，再保温25min；将熔体温度降至740℃，浇入到石墨模型中，待冷却后取样。First, cryolite powder (Na 3 AlF 6 ) and titanium powder (Ti) are uniformly mixed and dried at a mass ratio of 1 to 1; the 7075 aluminum alloy is mixed and heated and melted in a graphite crucible. At a temperature of 850°C, Add the above mixed powder at 8wt.% to the 7075 aluminum alloy melt and keep it warm for 15 minutes, stir it with a graphite rod for 20 minutes, and keep it warm for 25 minutes; lower the temperature of the melt to 740°C, pour it into a graphite mold, and take a sample after cooling .
实施例2。Example 2.
首先将冰晶石粉(Na3AlF6)与钛粉(Ti)按1～1的质量比均匀混合、烘干；将7075铝合金混合放入石墨坩锅内加热、熔化，在温度850℃时，将上述混合粉末按8wt.％加入到7075铝合金熔体中保温15min后，用石墨棒搅拌30min，再保温25min；将熔体温度降至740℃，浇入到石墨模型中，待冷却后取样。First, cryolite powder (Na 3 AlF 6 ) and titanium powder (Ti) are uniformly mixed and dried at a mass ratio of 1 to 1; the 7075 aluminum alloy is mixed and heated and melted in a graphite crucible. At a temperature of 850°C, Add the above-mentioned mixed powder at 8wt.% to the 7075 aluminum alloy melt and keep it warm for 15 minutes, stir it with a graphite rod for 30 minutes, and keep it warm for 25 minutes; lower the temperature of the melt to 740°C, pour it into a graphite mold, and take a sample after cooling .
实施例3。Example 3.
首先将冰晶石粉(Na3AlF6)与钛粉(Ti)按1.2∶1的质量比均匀混合、烘干；将7075铝合金混合放入石墨坩锅内加热、熔化，在温度880℃时，将上述混合粉末按12wt.％加入到7075铝合金熔体中保温20min后，用石墨棒搅拌30min，再保温30min；将熔体温度降至750℃，浇入到石墨模型中，待冷却后取样。First, cryolite powder (Na 3 AlF 6 ) and titanium powder (Ti) were uniformly mixed and dried at a mass ratio of 1.2:1; the 7075 aluminum alloy was mixed and heated and melted in a graphite crucible. At a temperature of 880°C, Add the above mixed powder at 12wt.% to the 7075 aluminum alloy melt and keep it warm for 20 minutes, stir it with a graphite rod for 30 minutes, and keep it warm for another 30 minutes; lower the temperature of the melt to 750°C, pour it into a graphite mold, and take a sample after cooling .
实施例4。Example 4.
首先将冰晶石粉(Na3AlF6)与钛粉(Ti)按1.5∶1的质量比均匀混合、烘干；将7075铝合金混合放入石墨坩锅内加热、熔化，在温度850℃时，将上述混合粉末按12wt.％加入到7075铝合金熔体中保温20min后，用石墨棒搅拌30min，再保温25min；将熔体温度降至740℃，浇入到石墨模型中，待冷却后取样。Firstly, cryolite powder (Na 3 AlF 6 ) and titanium powder (Ti) are uniformly mixed and dried at a mass ratio of 1.5:1; 7075 aluminum alloy is mixed and put into a graphite crucible to heat and melt, at a temperature of 850°C, Add the above mixed powder at 12wt.% to the 7075 aluminum alloy melt and keep it warm for 20 minutes, stir it with a graphite rod for 30 minutes, and keep it warm for 25 minutes; lower the temperature of the melt to 740°C, pour it into a graphite mold, and take a sample after cooling .
附图1为实施实例3条件下获得TiAl3/7075的铝基复合材料组织，由附图1可见，所获得TiAl3/7075的铝基复合材料组织没有明显的枝晶状出现，取而代之的是大量的蔷薇状、球状晶粒。TiAl3的晶体结构与铝的晶体结构的错配度在异质形核要求范围内，这样大大增加了形核率，从而使复合材料的组织得到了明显的细化。Accompanying drawing 1 is the aluminum matrix composite material organization that obtains TiAl 3 /7075 under the condition of embodiment 3, as seen from accompanying drawing 1, the aluminum matrix composite material organization of obtained TiAl 3 /7075 does not have obvious dendritic appearance, replaces A large number of rosette and spherical grains. The mismatch between the crystal structure of TiAl 3 and the crystal structure of aluminum is within the range required for heterogeneous nucleation, which greatly increases the nucleation rate, so that the structure of the composite material is significantly refined.
附图2为附图放大后的组织图，图中可见，通过原位生成TiAl3/7075铝基复合材料，反应生成了一系列的颗粒状及小方块状新生物质。从图中可以看到生成的颗粒状物质主要分布在晶体内部，颗粒大小约为5μm，生成的小方块状新物质无特定位置。Accompanying drawing 2 is the enlarged tissue diagram of the accompanying drawing, and it can be seen in the figure that a series of granular and small cube new substances are formed through the in-situ generation of TiAl 3 /7075 aluminum-based composite material. It can be seen from the figure that the generated granular substances are mainly distributed inside the crystal, with a particle size of about 5 μm, and the generated small cube-shaped new substances have no specific location.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101600118A CN101831564B (en) | 2010-04-29 | 2010-04-29 | A method of preparing TiAl3 reinforced aluminum matrix composites by in-situ reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101600118A CN101831564B (en) | 2010-04-29 | 2010-04-29 | A method of preparing TiAl3 reinforced aluminum matrix composites by in-situ reaction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101831564A CN101831564A (en) | 2010-09-15 |
| CN101831564B true CN101831564B (en) | 2011-12-21 |
Family
ID=42715782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101600118A Expired - Fee Related CN101831564B (en) | 2010-04-29 | 2010-04-29 | A method of preparing TiAl3 reinforced aluminum matrix composites by in-situ reaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101831564B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643087B (en) * | 2013-11-11 | 2016-03-02 | 江苏大学 | A kind of method preparing Al-Ti-B-O system aluminum-based in-situ composite materials |
| CN104962772B (en) * | 2015-06-02 | 2017-07-11 | 南昌大学 | One kind prepares situ Al3The method of Ti particle REINFORCED Al Si Cu composites |
-
2010
- 2010-04-29 CN CN2010101600118A patent/CN101831564B/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| 田龙等.原位AlN和Al3Ti粒子增强ZL101铝基复合材料.《西安工业学院学报》.2005,第25卷(第2期),153-157. * |
| 赵玉厚等.原位Al3Ti粒子增强ZL101铝基复合材料.《中国有色金属学报》.2000,第10卷214-217. * |
| 阴瑜娟等.原位生成Al3Ti和TiB2增强铝基复合材料的研究.《锻造技术》.2007,第28卷(第3期),344-346. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101831564A (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Processing, microstructure and mechanical properties of micro-SiC particles reinforced magnesium matrix composites fabricated by stir casting assisted by ultrasonic treatment processing | |
| CN104532068B (en) | Nano TiC ceramic particle reinforced aluminium base composite material and preparation method thereof | |
| WO2021114967A1 (en) | Method for preparing aluminum-based composite material reinforced in situ by ternary nanoparticles | |
| CN102586635B (en) | A preparation method of in-situ Al2O3 particle reinforced Al-Si-Cu composite material semi-solid slurry | |
| CN102086023B (en) | In-situ synthesis method combining sol-gel with thermit reaction and FeNiCrTi/NiAl-Al2O3 nano composite material synthesized by method | |
| CN101139666A (en) | Preparation method of SiC particle reinforced aluminum foam matrix composite material | |
| CN106566966A (en) | Magnesium base composite material with high-entropy alloy as reinforcing base and preparation method of magnesium base composite material | |
| CN103627932B (en) | A kind of particle enhanced aluminum-based composite material and preparation method thereof | |
| CN103484707A (en) | Preparation method for SiC particle reinforced aluminum-based composite material | |
| CN114277277B (en) | AlN/Al particle reinforced magnesium-aluminum rare earth based composite material and preparation method thereof | |
| CN107779712A (en) | A kind of strong high-modulus Mg Gd Y Zn Si Ti B magnesium alloys of superelevation and preparation method thereof | |
| CN104532046B (en) | Method for preparing nano-aluminum-nitride reinforced aluminum-based composite semi-solid slurry based on ultrasonic and mechanical vibration combination | |
| CN103074530A (en) | Preparation method of high-strength heat-resistant magnesium alloy | |
| CN108384977B (en) | A dual-phase particle reinforced Al-based composite material and its preparation method | |
| CN101880783B (en) | Preparation method of TiAl3 enhanced aluminum-based composite material | |
| CN101831564B (en) | A method of preparing TiAl3 reinforced aluminum matrix composites by in-situ reaction | |
| CN111690840A (en) | Amorphous phase silicate particle and SiC particle reinforced aluminum matrix composite material and preparation | |
| CN101892406B (en) | Method for preparing aluminum-based composite material with uniform and fine isometric crystal grains | |
| CN101985715B (en) | High performance cast magnesium alloy and preparation method thereof | |
| CN109266893B (en) | Method for reinforcing magnesium alloy composite material by coating zinc oxide graphene | |
| CN104532031B (en) | Method for preparing nano-ceramic particle reinforced aluminum-based composite material | |
| CN110195182A (en) | A kind of double size multiphase granules enhancing magnesium-based composite material and preparation method thereof | |
| CN102134692B (en) | Preparation method of TiB whisker-reinforced titanium-based composite material | |
| CN107142403A (en) | A kind of magnesium-based composite material of graphene and quasi-crystalline substance complex intensifying and preparation method thereof | |
| CN109022888B (en) | Novel in-situ autogenous hypereutectic Al-Si alloy composite modifier and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |