CN105369094B - A kind of nano-particle reinforcement magnesium alloy - Google Patents
A kind of nano-particle reinforcement magnesium alloy Download PDFInfo
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- CN105369094B CN105369094B CN201410421407.1A CN201410421407A CN105369094B CN 105369094 B CN105369094 B CN 105369094B CN 201410421407 A CN201410421407 A CN 201410421407A CN 105369094 B CN105369094 B CN 105369094B
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 50
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 41
- 230000002787 reinforcement Effects 0.000 title claims abstract description 17
- 239000000956 alloy Substances 0.000 claims abstract description 183
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 182
- 239000011777 magnesium Substances 0.000 claims abstract description 36
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 24
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 9
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 9
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 9
- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 9
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 9
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 9
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 30
- 238000001192 hot extrusion Methods 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 24
- 229910018084 Al-Fe Inorganic materials 0.000 claims description 18
- 229910018192 Al—Fe Inorganic materials 0.000 claims description 18
- 238000003723 Smelting Methods 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 244000137852 Petrea volubilis Species 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000009736 wetting Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims 3
- 239000002245 particle Substances 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000254173 Coleoptera Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides a kind of nano-particle reinforcement magnesium alloy, contain according to weight percent content：Al：4.1 6.9%, Ca：2.5 2.7%, Co：0.7 1.3%, Fe：0.5 0.7%, W：0.3 0.75%, Sm：0.45 0.75%, Zr：3.1 3.7%, Ge：2.1 3.4%, Nb：0.11 0.32%, Ir：0.1 0.65%, Dy：0.25 0.65%, Ce：0.5 0.75%, Yb：0.13 0.5%, Nd：2.1 2.5%, SiC nano particle：1 3%, a diameter of 20 60nm of surplus Mg, SiC nano particle.This alloy has excellent mechanical performances.
Description
Technical field
The invention belongs to field of magnesium alloy material, especially a kind of nano-particle reinforcement magnesium alloy.
Background technology
Magnesium alloy is one kind most light in contemporary metal structural material, and density is about 1.8g/cm3, is approximately the 1/4 of steel, aluminium
Rich reserves of 2/3. magnesium elements in the earth's crust and seawater, Chinese magnesium resource is especially abundant, and reserves rank first in the world.Magnesium closes
The advantages of golden is that density is small, and specific strength, specific stiffness are high, and damping property is good, while also has excellent casting character, machinability
Energy, dung beetle property and electromagnetic shielding capability, it is widely used a day auto manufacturing, Aeronautics and Astronautics, optical instrument manufacture and state
The field such as anti-.Thus mg-based material is considered as " green material " of most development and application potentiality, and exploitation prospect is wide.
Low yet with magnesium alloy absolute intensity, deformation at room temperature ability is poor, oxidizable the defects of burning, be perishable, limits its work
For the extensive use of structural material, it is extensive to can not show a candle to aluminium alloy for the application of magnesium alloy at present.Therefore, improving magnesium alloy strength makes it
It is the focus that novel magnesium alloy is developed, while high-strength magnesium alloy exploitation is to expanding magnesium alloy with good combination property
Application field is significant.
The content of the invention
The problem of existing for prior art, the present invention provide a kind of high-strength magnesium alloy, and magnesium alloy has higher intensity,
So that such magnesium alloy has the mechanical property more superior than traditional commerce magnesium alloy.
To use following technical scheme up to this purpose, the present invention：
A kind of nano-particle reinforcement magnesium alloy, contains according to weight percent content：Al：4.1-6.9%, Ca：2.5-
2.7%, Co：0.7-1.3%, Fe：0.5-0.7%, W：0.3-0.75%, Sm：0.45-0.75%, Zr：3.1-3.7%, Ge：
2.1-3.4%, Nb：0.11-0.32%, Ir：0.1-0.65%, Dy：0.25-0.65%, Ce：0.5-0.75%, Yb：0.13-
0.5%, Nd：2.1-2.5%, SiC nano particle：1-3%, a diameter of 20-60nm of surplus Mg, SiC nano particle.
Further, contain according to weight percent content：Al：4.1%, Ca：2.5%, Co：0.7%, Fe：
0.5%, W：0.3%, Sm：0.45%, Zr：3.1%, Ge：2.1%, Nb：0.11%, Ir：0.1%, Dy：0.25%, Ce：
0.5%, Yb：0.13%, Nd：2.1%, SiC nano particle：1%, a diameter of 20nm of surplus Mg, SiC nano particle.
Embodiment
Embodiment 1
A kind of nano-particle reinforcement magnesium alloy, contains according to weight percent content：Al：4.1%, Ca：2.5%, Co：
0.7%, Fe：0.5%, W：0.3%, Sm：0.45%, Zr：3.1%, Ge：2.1%, Nb：0.11%, Ir：0.1%, Dy：
0.25%, Ce：0.5%, Yb：0.13%, Nd：2.1%, SiC nano particle：1%, the diameter of surplus Mg, SiC nano particle
For 20nm.
The preparation method of nano-particle reinforcement magnesium alloy, comprises the following steps：
(1) raw material prepares：Raw material preparation is carried out according to weight percent content, the raw material is pure Mg ingots, among Mg-Ca
Alloy, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge,
Al-Nb intermediate alloys, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys；
(2) dry：It will be closed among pure Mg ingots, Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W
In gold, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure Dy, Al-Ce
Between alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys dried at 200 DEG C；
(3) nano SiC granule pre-processes：6g is put into a reservoir:60ml drying SiC nano particles are with analyzing pure second
Alcohol, after stirring, fully wetting, then polyvinyl alcohol weak solution is added in the mixture of SiC nano particles and ethanol, addition
1/8 for SiC nano particles and the volume of mixture of ethanol is sufficiently stirred, and after being well mixed, mixture is placed in baking oven and dried
It is roasting, dry, baking temperature is 97 DEG C；
(3) melting：Pure Mg ingots are put into smelting furnace, opening smelting furnace heater makes temperature be gradually increased to 770 DEG C, while defeated
Enter gas atmosphere, after pure magnesium ingot is completely melt, add Mg-Ca intermediate alloys, pure Al ingots, the conjunction of pure Co, Al-Fe centre
Gold, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys,
Pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys, after all raw materials are completely melt, by smelting furnace
Temperature is stirred after being transferred to 590 DEG C, makes alloying component uniform, then adds pretreated nano SiC granule, then stirred
Mix, make it well mixed, standing drags for slag, obtains aluminium alloy；
(4) cast：It is Ф 80cm by cavity dimension, length 800cm stainless steel mould is preheated, and preheating temperature is
400 DEG C, then aluminium alloy is cast in the stainless steel mould of preheating, cast temperature is 740 DEG C, after the completion of casting, ingot casting is existed
30 DEG C are naturally cooled in air, obtains alloy pig；
(5) hot extrusion：Cylindrical shape hot-extrusion mold is preheated, preheating temperature is 320 DEG C, then alloy pig is put into heat
Extruded in extrusion die and on forcing press, extrusion temperature is 430 DEG C, pressure 190Mpa, after the completion of hot extrusion, is opened
Movable rack, take out composite material of magnesium alloy rod；
(6) clear up：By the composite material of magnesium alloy rod Jing Guo hot extrusion, it is embedded in fine sand, it is naturally cooled to 25 DEG C,
Polished again with sand paper, make any surface finish, got product.
Embodiment 2：
A kind of nano-particle reinforcement magnesium alloy, contains according to weight percent content：Al：4.5%, Ca：2.6%, Co：
1.0%, Fe：0.6%, W：0.52%, Sm：0.65%, Zr：3.4%, Ge：2.7%, Nb：0.22%, Ir：0.4%, Dy：
0.45%, Ce：0.62%, Yb：0.31%, Nd：2.3%, SiC nano particle：2%, surplus Mg, SiC nano particle it is straight
Footpath is 40nm.
The preparation method of nano-particle reinforcement magnesium alloy, comprises the following steps：
(1) raw material prepares：Raw material preparation is carried out according to weight percent content, the raw material is pure Mg ingots, among Mg-Ca
Alloy, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge,
Al-Nb intermediate alloys, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys；
(2) dry：It will be closed among pure Mg ingots, Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W
In gold, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure Dy, Al-Ce
Between alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys dried at 200 DEG C；
(3) nano SiC granule pre-processes：6g is put into a reservoir:60ml drying SiC nano particles are with analyzing pure second
Alcohol, after stirring, fully wetting, then polyvinyl alcohol weak solution is added in the mixture of SiC nano particles and ethanol, addition
1/8 for SiC nano particles and the volume of mixture of ethanol is sufficiently stirred, and after being well mixed, mixture is placed in baking oven and dried
It is roasting, dry, baking temperature is 99 DEG C；
(3) melting：Pure Mg ingots are put into smelting furnace, opening smelting furnace heater makes temperature be gradually increased to 775 DEG C, while defeated
Enter gas atmosphere, after pure magnesium ingot is completely melt, add Mg-Ca intermediate alloys, pure Al ingots, the conjunction of pure Co, Al-Fe centre
Gold, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys,
Pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys, after all raw materials are completely melt, by smelting furnace
Temperature is stirred after being transferred to 595 DEG C, makes alloying component uniform, then adds pretreated nano SiC granule, then stirred
Mix, make it well mixed, standing drags for slag, obtains aluminium alloy；
(4) cast：It is Ф 80cm by cavity dimension, length 800cm stainless steel mould is preheated, and preheating temperature is
410 DEG C, then aluminium alloy is cast in the stainless steel mould of preheating, cast temperature is 750 DEG C, after the completion of casting, ingot casting is existed
30 DEG C are naturally cooled in air, obtains alloy pig；
(5) hot extrusion：Cylindrical shape hot-extrusion mold is preheated, preheating temperature is 340 DEG C, then alloy pig is put into heat
Extruded in extrusion die and on forcing press, extrusion temperature is 432 DEG C, pressure 190Mpa, after the completion of hot extrusion, is opened
Movable rack, take out composite material of magnesium alloy rod；
(6) clear up：By the composite material of magnesium alloy rod Jing Guo hot extrusion, it is embedded in fine sand, it is naturally cooled to 25 DEG C,
Polished again with sand paper, make any surface finish, got product.
Embodiment 3：
A kind of nano-particle reinforcement magnesium alloy, contains according to weight percent content：Al：6.9%, Ca：2.7%, Co：
1.3%, Fe：0.7%, W：0.75%, Sm：0.75%, Zr：3.7%, Ge：3.4%, Nb：0.32%, Ir：0.65%, Dy：
0.65%, Ce：0.75%, Yb：0.5%, Nd：2.5%, SiC nano particle：3%, the diameter of surplus Mg, SiC nano particle
For 60nm.
The preparation method of nano-particle reinforcement magnesium alloy, comprises the following steps：
(1) raw material prepares：Raw material preparation is carried out according to weight percent content, the raw material is pure Mg ingots, among Mg-Ca
Alloy, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge,
Al-Nb intermediate alloys, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys；
(2) dry：It will be closed among pure Mg ingots, Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W
In gold, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure Dy, Al-Ce
Between alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys dried at 200 DEG C；
(3) nano SiC granule pre-processes：6g is put into a reservoir:60ml drying SiC nano particles are with analyzing pure second
Alcohol, after stirring, fully wetting, then polyvinyl alcohol weak solution is added in the mixture of SiC nano particles and ethanol, addition
1/8 for SiC nano particles and the volume of mixture of ethanol is sufficiently stirred, and after being well mixed, mixture is placed in baking oven and dried
It is roasting, dry, baking temperature is 100 DEG C；
(3) melting：Pure Mg ingots are put into smelting furnace, opening smelting furnace heater makes temperature be gradually increased to 780 DEG C, while defeated
Enter gas atmosphere, after pure magnesium ingot is completely melt, add Mg-Ca intermediate alloys, pure Al ingots, the conjunction of pure Co, Al-Fe centre
Gold, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys,
Pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys, after all raw materials are completely melt, by smelting furnace
Temperature is stirred after being transferred to 600 DEG C, makes alloying component uniform, then adds pretreated nano SiC granule, then stirred
Mix, make it well mixed, standing drags for slag, obtains aluminium alloy；
(4) cast：It is Ф 80cm by cavity dimension, length 800cm stainless steel mould is preheated, and preheating temperature is
420 DEG C, then aluminium alloy is cast in the stainless steel mould of preheating, cast temperature is 760 DEG C, after the completion of casting, ingot casting is existed
30 DEG C are naturally cooled in air, obtains alloy pig；
(5) hot extrusion：Cylindrical shape hot-extrusion mold is preheated, preheating temperature is 360 DEG C, then alloy pig is put into heat
Extruded in extrusion die and on forcing press, extrusion temperature is 435 DEG C, pressure 190Mpa, after the completion of hot extrusion, is opened
Movable rack, take out composite material of magnesium alloy rod；
(6) clear up：By the composite material of magnesium alloy rod Jing Guo hot extrusion, it is embedded in fine sand, it is naturally cooled to 25 DEG C,
Polished again with sand paper, make any surface finish, got product.
The performance for the alloy that embodiment 1-3 is obtained is listed in the table below
| Embodiment | Tensile strength | Yield strength | Elongation percentage |
| 1 | 445MPa | 365MPa | 5.3% |
| 2 | 431MPa | 370MPa | 6.2% |
| 3 | 458MPa | 395MPa | 8.2% |
Claims (3)
1. a kind of nano-particle reinforcement magnesium alloy, it is characterised in that contain according to weight percent content：Al 4.1%, Ca
2.5%, Co 0.7%, Fe 0.5%, W 0.3%, Sm 0.45%, Zr 3.1%, Ge 2.1%, Nb 0.11%, Ir
0.1%, Dy 0.25%, Ce 0.5%, Yb 0.13%, Nd 2.1%, SiC nano particle 1%, surplus Mg, SiC nanometer
A diameter of 20nm of grain；
The preparation method of nano-particle reinforcement magnesium alloy comprises the following steps：
(1) raw material prepares：Raw material preparation is carried out according to weight percent content, the raw material is pure Mg ingots, the conjunction of Mg-Ca centres
Golden, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge,
Al-Nb intermediate alloys, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys；
(2) dry：By pure Mg ingots, Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-
Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy,
Al-Yb intermediate alloys, Mg-Nd intermediate alloys are dried at 200 DEG C；
(3) nano SiC granule pre-processes：6g is put into a reservoir:60ml drying SiC nano particles and analysis straight alcohol, are stirred
Mix, fully after wetting, then polyvinyl alcohol weak solution is added in the mixture of SiC nano particles and ethanol, addition SiC
The 1/8 of the volume of mixture of nano particle and ethanol is sufficiently stirred, and after being well mixed, mixture is placed in baking oven and toasted, and is done
Dry, baking temperature is 97 DEG C；
(4) melting：Pure Mg ingots are put into smelting furnace, opening smelting furnace heater makes temperature be gradually increased to 770 DEG C, while inputs gas
Body protective atmosphere, after pure magnesium ingot is completely melt, add Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy,
It is Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure
Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys, after all raw materials are completely melt, by melting furnace temperature
Degree is stirred after being transferred to 590 DEG C, is made alloying component uniform, is then added pretreated nano SiC granule, then stirred
Mix, make it well mixed, standing drags for slag, obtains aluminium alloy；
(5) cast：It is Ф 80cm by cavity dimension, length 800cm stainless steel mould is preheated, and preheating temperature is 400 DEG C,
Aluminium alloy is cast in the stainless steel mould of preheating again, cast temperature is 740 DEG C, after the completion of casting, makes ingot casting in atmosphere
30 DEG C are naturally cooled to, obtains alloy pig；
(6) hot extrusion：Cylindrical shape hot-extrusion mold is preheated, preheating temperature is 320 DEG C, then alloy pig is put into hot extrusion
Extruded in mould and on forcing press, extrusion temperature is 430 DEG C, pressure 190Mpa, after the completion of hot extrusion, opens folding
Frame, take out composite material of magnesium alloy rod；
(7) clear up：By the composite material of magnesium alloy rod Jing Guo hot extrusion, it is embedded in fine sand, it is naturally cooled to 25 DEG C, then use
Sand paper is polished, and is made any surface finish, is got product.
2. a kind of nano-particle reinforcement magnesium alloy, it is characterised in that contain according to weight percent content：Al 4.5%, Ca
2.6%, Co 1.0%, Fe 0.6%, W 0.52%, Sm 0.65%, Zr 3.4%, Ge 2.7%, Nb 0.22%, Ir
0.4%, Dy 0.45%, Ce 0.62%, Yb 0.31%, Nd 2.3%, SiC nano particle 2%, surplus Mg, SiC nanometer
A diameter of 40nm of particle；
The preparation method of nano-particle reinforcement magnesium alloy comprises the following steps：
(1) raw material prepares：Raw material preparation is carried out according to weight percent content, the raw material is pure Mg ingots, the conjunction of Mg-Ca centres
Golden, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge,
Al-Nb intermediate alloys, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys；
(2) dry：By pure Mg ingots, Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-
Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy,
Al-Yb intermediate alloys, Mg-Nd intermediate alloys are dried at 200 DEG C；
(3) nano SiC granule pre-processes：6g is put into a reservoir:60ml drying SiC nano particles and analysis straight alcohol, are stirred
Mix, fully after wetting, then polyvinyl alcohol weak solution is added in the mixture of SiC nano particles and ethanol, addition SiC
The 1/8 of the volume of mixture of nano particle and ethanol is sufficiently stirred, and after being well mixed, mixture is placed in baking oven and toasted, and is done
Dry, baking temperature is 99 DEG C；
(4) melting：Pure Mg ingots are put into smelting furnace, opening smelting furnace heater makes temperature be gradually increased to 775 DEG C, while inputs gas
Body protective atmosphere, after pure magnesium ingot is completely melt, add Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy,
It is Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure
Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys, after all raw materials are completely melt, by melting furnace temperature
Degree is stirred after being transferred to 595 DEG C, is made alloying component uniform, is then added pretreated nano SiC granule, then stirred
Mix, make it well mixed, standing drags for slag, obtains aluminium alloy；
(5) cast：It is Ф 80cm by cavity dimension, length 800cm stainless steel mould is preheated, and preheating temperature is 410 DEG C,
Aluminium alloy is cast in the stainless steel mould of preheating again, cast temperature is 750 DEG C, after the completion of casting, makes ingot casting in atmosphere
30 DEG C are naturally cooled to, obtains alloy pig；
(6) hot extrusion：Cylindrical shape hot-extrusion mold is preheated, preheating temperature is 340 DEG C, then alloy pig is put into hot extrusion
Extruded in mould and on forcing press, extrusion temperature is 432 DEG C, and pressure 190Mpa, after the completion of hot extrusion, opening is opened
Frame is closed, takes out composite material of magnesium alloy rod；
(7) clear up：By the composite material of magnesium alloy rod Jing Guo hot extrusion, it is embedded in fine sand, it is naturally cooled to 25 DEG C, then use
Sand paper is polished, and is made any surface finish, is got product.
3. a kind of nano-particle reinforcement magnesium alloy, it is characterised in that contain according to weight percent content：Al 6.9%, Ca
2.7%, Co 1.3%, Fe 0.7%, W 0.75%, Sm 0.75%, Zr 3.7%, Ge 3.4%, Nb 0.32%, Ir
0.65%, Dy 0.65%, Ce 0.75%, Yb 0.5%, Nd 2.5%, SiC nano particle 3%, surplus Mg, SiC nanometer
A diameter of 60nm of particle；
The preparation method of nano-particle reinforcement magnesium alloy comprises the following steps：
(1) raw material prepares：Raw material preparation is carried out according to weight percent content, the raw material is pure Mg ingots, the conjunction of Mg-Ca centres
Golden, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge,
Al-Nb intermediate alloys, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys；
(2) dry：By pure Mg ingots, Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy, Al-W intermediate alloys, Mg-
Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure Dy, Al-Ce intermediate alloy,
Al-Yb intermediate alloys, Mg-Nd intermediate alloys are dried at 200 DEG C；
(3) nano SiC granule pre-processes：6g is put into a reservoir:60ml drying SiC nano particles and analysis straight alcohol, are stirred
Mix, fully after wetting, then polyvinyl alcohol weak solution is added in the mixture of SiC nano particles and ethanol, addition SiC
The 1/8 of the volume of mixture of nano particle and ethanol is sufficiently stirred, and after being well mixed, mixture is placed in baking oven and toasted, and is done
Dry, baking temperature is 100 DEG C；
(4) melting：Pure Mg ingots are put into smelting furnace, opening smelting furnace heater makes temperature be gradually increased to 780 DEG C, while inputs gas
Body protective atmosphere, after pure magnesium ingot is completely melt, add Mg-Ca intermediate alloys, pure Al ingots, pure Co, Al-Fe intermediate alloy,
It is Al-W intermediate alloys, Mg-Sm intermediate alloys, Mg-Zr intermediate alloys, pure Ge, Al-Nb intermediate alloy, Al-Ir intermediate alloys, pure
Dy, Al-Ce intermediate alloy, Al-Yb intermediate alloys, Mg-Nd intermediate alloys, after all raw materials are completely melt, by melting furnace temperature
Degree is stirred after being transferred to 600 DEG C, is made alloying component uniform, is then added pretreated nano SiC granule, then stirred
Mix, make it well mixed, standing drags for slag, obtains aluminium alloy；
(5) cast：It is Ф 80cm by cavity dimension, length 800cm stainless steel mould is preheated, and preheating temperature is 420 DEG C,
Aluminium alloy is cast in the stainless steel mould of preheating again, cast temperature is 760 DEG C, after the completion of casting, makes ingot casting in atmosphere
30 DEG C are naturally cooled to, obtains alloy pig；
(6) hot extrusion：Cylindrical shape hot-extrusion mold is preheated, preheating temperature is 360 DEG C, then alloy pig is put into hot extrusion
Extruded in compression mould and on forcing press, extrusion temperature is 435 DEG C, and pressure 190Mpa, after the completion of hot extrusion, opening is opened
Frame is closed, takes out composite material of magnesium alloy rod；
(7) clear up：By the composite material of magnesium alloy rod Jing Guo hot extrusion, it is embedded in fine sand, it is naturally cooled to 25 DEG C, then use
Sand paper is polished, and is made any surface finish, is got product.
Priority Applications (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767678A (en) * | 1984-01-26 | 1988-08-30 | The Dow Chemical Company | Corrosion resistant magnesium and aluminum oxalloys |
| CN103667841A (en) * | 2014-01-16 | 2014-03-26 | 张霞 | Double-phase particle mixed enhanced magnesium alloy and preparing method of double-phase particle mixed enhanced magnesium alloy |
| CN103667840A (en) * | 2014-01-16 | 2014-03-26 | 张霞 | Nanoparticle reinforced polybasic heat-insulating magnesium alloy and preparation method thereof |
| CN103667839A (en) * | 2014-01-16 | 2014-03-26 | 张霞 | Nanoparticle reinforced creep-resistant magnesium alloy and preparation method thereof |
| CN103695744A (en) * | 2014-01-16 | 2014-04-02 | 张霞 | Nanoparticle enhanced magnesium alloy and preparation method thereof |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767678A (en) * | 1984-01-26 | 1988-08-30 | The Dow Chemical Company | Corrosion resistant magnesium and aluminum oxalloys |
| CN103667841A (en) * | 2014-01-16 | 2014-03-26 | 张霞 | Double-phase particle mixed enhanced magnesium alloy and preparing method of double-phase particle mixed enhanced magnesium alloy |
| CN103667840A (en) * | 2014-01-16 | 2014-03-26 | 张霞 | Nanoparticle reinforced polybasic heat-insulating magnesium alloy and preparation method thereof |
| CN103667839A (en) * | 2014-01-16 | 2014-03-26 | 张霞 | Nanoparticle reinforced creep-resistant magnesium alloy and preparation method thereof |
| CN103695744A (en) * | 2014-01-16 | 2014-04-02 | 张霞 | Nanoparticle enhanced magnesium alloy and preparation method thereof |
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