CN104789804B - A kind of titanium alloy particle strengthens the preparation method of magnesium-based composite material - Google Patents
A kind of titanium alloy particle strengthens the preparation method of magnesium-based composite material Download PDFInfo
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- CN104789804B CN104789804B CN201510140995.6A CN201510140995A CN104789804B CN 104789804 B CN104789804 B CN 104789804B CN 201510140995 A CN201510140995 A CN 201510140995A CN 104789804 B CN104789804 B CN 104789804B
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 103
- 239000002245 particle Substances 0.000 title claims abstract description 103
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 76
- 239000011777 magnesium Substances 0.000 title claims abstract description 76
- 239000002131 composite material Substances 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 101
- 230000002708 enhancing effect Effects 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 22
- 238000010792 warming Methods 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 17
- 239000000956 alloy Substances 0.000 claims description 17
- 238000007711 solidification Methods 0.000 claims description 11
- 230000008023 solidification Effects 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 abstract description 9
- 239000000919 ceramic Substances 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 239000007787 solid Substances 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A kind of titanium alloy particle strengthens the preparation method of magnesium-based composite material, and it is related to a kind of preparation method of magnesium-based composite material.It can not also be provided simultaneously with that intensity is higher and the preferable technical problem of plasticity the present invention is to solve current magnesium-based composite material.The present invention preparation method be：(1) semisolid molten magnesium alloy is prepared；(2) titanium alloy particle magnesium alloy blend melt is prepared；(3) titanium alloy particle enhancing magnesium-based composite material is prepared.The present invention is using reinforcement of TC4 (the Ti 6Al 4V) titanium alloy particles as magnesium alloy, pass through stirring casting method and the volume fraction and particle size of control titanium alloy particle, the excellent mechanical performance that obtained composite has intensity high and plasticity and toughness have both well, compared with the magnesium-based composite material prepared with consubstantiality fraction with the common ceramic particle reinforcement of particle size, intensity is more or less the same, and plasticity is significantly better than the latter.Present invention is mainly applied to prepare magnesium-based composite material.
Description
Technical field
The present invention relates to a kind of preparation method of magnesium-based composite material.
Background technology
The reinforcement of magnesium-based composite material, such as SiC, B are generally used as using ceramic particle at present4C、TiC、TiC、Al2O3、
Y2O3、TiO2、Mg2Si etc., this, which is primarily due to ceramics, has high intensity, rigidity, Young's modulus and preferable stability,
But with its enhanced composite while the strength of materials is improved, plasticity is far below matrix material, this problem is limited
Magnesium-based composite material is more widely applied.
Titanium has the features such as intensity is high, plasticity and toughness are good, corrosion resistance is good, heat resistance is high, and the density of titanium is smaller, and titanium is ratio
Intensity highest metal, compared with common ceramic particle reinforcement, there is titanium maximum advantage to be physico between titanium and magnesium
Learn property similar, compatibility is fine, and the wetability between titanium and magnesium is especially good, common TC4 titanium alloy particles are added
Into magnesium alloy, it is expected to that the high magnesium-based composite material taken into account well with plasticity and toughness of intensity can be obtained.Existing method is mainly limited to
The preparation method of powder metallurgy, the composite prepared by powder metallurgic method, the interface cohesion between its matrix and particle is
Make what solid phase blapharoplast and solid phase reinforcement particle combined by hot pressed sintering, it is this to pass through solid phase and solid phase binding system
For the composite gone out, its interface cohesion is generally poor.Further, since the density of TC4 titanium alloy particles is more slightly larger than magnesium alloy
A bit, so when long-time stands titanium alloy particle-magnesium alloy fused mass, will occur the phenomenon of particle deposition, cause particle point
The problem of cloth is uneven.
The content of the invention
It can not also be provided simultaneously with that intensity is higher and the preferable skill of plasticity the present invention is to solve current magnesium-based composite material
Art problem, so that providing a kind of titanium alloy particle strengthens the preparation method of magnesium-based composite material.
The preparation method of the titanium alloy particle enhancing magnesium-based composite material of the present invention is carried out according to the following steps：
First, semisolid molten magnesium alloy is prepared：Matrix magnesium alloy is warming up to 700 DEG C~750 DEG C, treats that matrix alloy is complete
560 DEG C~600 DEG C are cooled the temperature to after fusing, semisolid molten magnesium alloy is obtained；
2nd, titanium alloy particle-magnesium alloy blend melt is prepared：Titanium alloy particle is heated to 100 DEG C~200 DEG C, preheating
20min~50min, the semisolid molten magnesium alloy for then obtaining step one is in the condition that rotating speed is 600rpm~1000rpm
Under be stirred, preheated titanium alloy particle is added in semisolid molten magnesium alloy while stirring, continue in rotating speed
To be stirred 5min~10min under conditions of 1000rpm~1500rpm, titanium alloy particle-magnesium alloy blend melt is obtained；
Wherein, the volume ratio of described titanium alloy particle and semisolid molten magnesium alloy is 1:(4~9)；
3rd, titanium alloy particle enhancing magnesium-based composite material is prepared：The titanium alloy particle that step 2 is obtained-magnesium alloy mixing
Melt is heated to liquid under stirring, the temperature rise period using rotating speed it is maximum without vortex stirring, rotating speed be 250rpm~
Liquid blend melt, is then poured into the mould that temperature is 400 DEG C~450 DEG C by 300rpm, and in 100MPa~150MPa
Under Pressure Solidification, that is, obtain titanium alloy particle enhancing magnesium-based composite material.
The present invention includes advantages below：
The present invention is prepared for titanium alloy particle enhancing magnesium-based composite material using stirring casting method, and magnesium alloy is first heated up
Cooling forms semisolid afterwards, and then titanium alloy particle preheated in advance is poured into semi-solid melt while carrying out semisolid
Blend melt, liquid is warming up to after the stirring scheduled time by stirring, and by melt cast into mould casting forming.
(1) present invention in preparation process will to titanium alloy particle carry out heating, drying, and preheating temperature be 100 DEG C~
200 DEG C, preheating time be 20min~50min, so both can reduce absorption particle surface gas flow, improve particle with
Wetability between alloy substrate, is conducive to the scattered of particle, is unlikely to make titanium alloy particle oxidation serious again, if preheating temperature
Height is spent, particle surface will be made to form the TiO of densification2Layer, this ceramic phase is just spaced between titanium alloy particle and matrix
Combination, interface cohesion between particle and matrix can be caused poor；
(2) present invention uses liquid preparation method, gives full play to magnesium liquid the characteristics of titanium particle surface wetability is good, thus
Interface cohesion is fine between titanium alloy particle and matrix, and particle is easily dispersed in alloy melt, and particle is distributed in the base
Uniformly, the characteristics of can thus making titanium alloy particle intensity height and good plasticity and toughness is not fully exerted, and is answered so as to improve magnesium-based
The combination property of condensation material, it is to avoid the problems such as between the particle and matrix of other method such as powder metallurgy interface cohesion is poor；
(3) present invention is shorter in Semi-solid Stirring stage mixing time, and only 5min~10min is thus avoided significantly
Because oxide inclusion is serious caused by mixing time is long and the problem of high air vent content.Because the wetting between titanium and magnesium
Property it is especially good, stirring the short period titanium alloy particle will be made to be uniformly dispersed in the base；
(4) present invention can easily change the volume fraction and particle size of titanium alloy particle, and various volume integrals are made
Number magnesium-based composite material enhanced with the titanium alloy particle of various particle sizes；
(5) present invention is using reinforcement of the titanium alloy particle as magnesium alloy, with consubstantiality fraction with particle size ceramics
Particle (such as SiC, TiC) enhancing magnesium-based composite material is compared, and the intensity and plasticity of TC4p/AZ91 magnesium-based composite materials are all obvious
It is better than the latter, can be applied to Aero-Space, automobile, sports apparatus field.
Brief description of the drawings
Fig. 1 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 1；
Fig. 2 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 2；
Fig. 3 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 3；
Fig. 4 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 4；
Fig. 5 is the stress strain curve of AZ91 magnesium alloys and TC4p/AZ91 magnesium-based composite materials, and curve 1 is AZ91 magnesium alloys
Stress strain curve, curve 2 is the stress strain curve of the 45 μm of 10%TC4p/AZ91 magnesium-based composite materials prepared in embodiment 1, curve 3
It is the stress strain curve of the 45 μm of 15%TC4p/AZ91 magnesium-based composite materials prepared in embodiment 2, curve 4 is preparation in embodiment 3
45 μm of 20%TC4p/AZ91 magnesium-based composite materials stress strain curve, curve 5 is the 25 μm of 10%TC4p/ prepared in embodiment 4
The stress strain curve of AZ91 magnesium-based composite materials.
Embodiment
Embodiment one：The preparation method of the titanium alloy particle enhancing magnesium-based composite material of present embodiment is by following
Step is carried out：
First, semisolid molten magnesium alloy is prepared：Matrix magnesium alloy is warming up to 700 DEG C~750 DEG C, treats that matrix alloy is complete
560 DEG C~600 DEG C are cooled the temperature to after fusing, semisolid molten magnesium alloy is obtained；
2nd, titanium alloy particle-magnesium alloy blend melt is prepared：Titanium alloy particle is heated to 100 DEG C~200 DEG C, preheating
20min~50min, the semisolid molten magnesium alloy for then obtaining step one is in the condition that rotating speed is 600rpm~1000rpm
Under be stirred, preheated titanium alloy particle is added in semisolid molten magnesium alloy while stirring, continue in rotating speed
To be stirred 5min~10min under conditions of 1000rpm~1500rpm, titanium alloy particle-magnesium alloy blend melt is obtained；
Wherein, the volume ratio of described titanium alloy particle and semisolid molten magnesium alloy is 1:(4~9)；
3rd, titanium alloy particle enhancing magnesium-based composite material is prepared：The titanium alloy particle that step 2 is obtained-magnesium alloy mixing
Melt is heated to liquid under stirring, and liquid blend melt then is poured into the mould that temperature is 400 DEG C~450 DEG C
In, and in 100MPa~150MPa Under Pressure Solidifications, that is, obtain titanium alloy particle enhancing magnesium-based composite material.
Embodiment two：Present embodiment from unlike embodiment one：By magnesium alloy base in step one
Body is warming up to 710 DEG C~740 DEG C, then cools the temperature to 570 DEG C~600 DEG C, obtains semisolid molten magnesium alloy.Other and tool
Body embodiment one is identical.
Embodiment three：Present embodiment from unlike embodiment one：By magnesium alloy base in step one
Body is warming up to 720 DEG C~730 DEG C, then cools the temperature to 580 DEG C~600 DEG C, obtains semisolid molten magnesium alloy.Other and tool
Body embodiment one is identical.
Embodiment four：Present embodiment from unlike embodiment one：By magnesium alloy base in step one
Body is warming up to 720 DEG C~730 DEG C, then cools the temperature to 590 DEG C~600 DEG C, obtains semisolid molten magnesium alloy.Other and tool
Body embodiment one is identical.
Embodiment five：Present embodiment from unlike embodiment one：Titanium alloy is pre- in step 2
Hot temperature is 120 DEG C~180 DEG C, and preheating time is 30min~50min, and the semisolid molten magnesium for then obtaining step one is closed
Gold is stirred under conditions of rotating speed is 600rpm~1000rpm, is melted while preheating particulate is poured into magnesium alloy semi solid state
In body, continuation is stirred under conditions of 1000rpm~1500rpm, and mixing time is 6min~10min, and described
The volume ratio of titanium alloy particle and semisolid molten magnesium alloy is 1:(5~8).It is other identical with embodiment one.
Embodiment six：Present embodiment from unlike embodiment one：Titanium alloy is pre- in step 2
Hot temperature is 140 DEG C~160 DEG C, and preheating time is 40min~50min, and the semisolid molten magnesium for then obtaining step one is closed
Gold is stirred under conditions of rotating speed is 600rpm~1000rpm, is melted while preheating particulate is poured into magnesium alloy semi solid state
In body, continuation is stirred under conditions of 1000rpm~1500rpm, and mixing time is 8min~10min, and described
The volume ratio of titanium alloy particle and semisolid molten magnesium alloy is 1:(6~7).It is other identical with embodiment one.
Embodiment seven：Present embodiment from unlike embodiment one：Titanium alloy is pre- in step 2
Hot temperature is 150 DEG C, and preheating time is 45min, and the semisolid molten magnesium alloy for then obtaining step one is in rotating speed
It is stirred, while preheating particulate is poured into magnesium alloy semi solid state melt, continues under conditions of 600rpm~1000rpm
It is stirred under conditions of 1000rpm~1500rpm, mixing time is 9min, and described titanium alloy particle and semisolid
The volume ratio of molten magnesium alloy is 1:(6~7).It is other identical with embodiment one.
Embodiment eight：Present embodiment from unlike embodiment one：Step 2 is obtained in step 3
To alloy melt be heated to liquid, then by the alloy melt of liquid be poured into temperature be in 420 DEG C~450 DEG C of mould simultaneously
In 120MPa~150MPa Under Pressure Solidifications, titanium alloy particle enhancing magnesium-based composite material is obtained.Other and embodiment
One is identical.
Embodiment nine：Present embodiment from unlike embodiment one：Step 2 is obtained in step 3
To alloy melt be heated to liquid, then by the alloy melt of liquid be poured into temperature be in 430 DEG C~450 DEG C of mould simultaneously
In 130MPa~150MPa Under Pressure Solidifications, titanium alloy particle enhancing magnesium-based composite material is obtained.Other and embodiment
One is identical.
Embodiment ten：Present embodiment from unlike embodiment one：Matrix described in step one
Magnesium alloy is AZ91 magnesium alloys.It is other identical with embodiment one.
Embodiment 11：Present embodiment from unlike embodiment one：Titanium alloy in step 3
The stirring that grain-magnesium alloy blend melt is heated to described in liquid under stirring is to be stirred using rotating speed is maximum without vortex
Mix, rotating speed is 250rpm~300rpm.It is other identical with embodiment one.
Following examples are provided with reference to present disclosure：
Embodiment 1：
The preparation method of the titanium alloy particle enhancing magnesium-based composite material of the present embodiment is carried out according to the following steps：
(1) semisolid molten magnesium alloy is prepared：Matrix AZ91 magnesium alloys are warming up to 700 DEG C~750 DEG C, matrix alloy is treated
560 DEG C~600 DEG C are cooled the temperature to after being completely melt, semisolid molten magnesium alloy is obtained；
(2) titanium alloy particle-magnesium alloy blend melt is prepared：Average grain diameter is heated for 45 μm of TC4 titanium alloy particles
To 100 DEG C~200 DEG C, 20min~50min is preheated, the semisolid molten magnesium alloy for then obtaining step (1) is stirred,
Rotating speed is 600rpm~1000rpm, and at the same time preheated titanium alloy particle is added in semisolid molten magnesium alloy, after
Continue and be stirred 5min under conditions of rotating speed is 1000rpm~1500rpm, obtain titanium alloy particle-magnesium alloy blend melt,
The volume ratio of titanium alloy particle and semisolid molten magnesium alloy described in step (2) is 1:9；
(3) titanium alloy particle enhancing magnesium-based composite material is prepared：Titanium alloy particle-magnesium alloy that step (2) is obtained is mixed
Close melt and be warming up to liquid, in the temperature rise period using rotating speed maximum without vortex stirring, rotating speed is 250rpm~300rpm, then
Liquid blend melt is poured into the mould that temperature is 400 DEG C~450 DEG C, and in 100MPa~150MPa Under Pressure Solidifications,
Obtain titanium alloy particle enhancing magnesium-based composite material.
Embodiment 2：
The preparation method of the titanium alloy particle enhancing magnesium-based composite material of the present embodiment is carried out according to the following steps：
(1) semisolid molten magnesium alloy is prepared：Matrix AZ91 magnesium alloys are warming up to 700 DEG C~750 DEG C, matrix alloy is treated
560 DEG C~600 DEG C are cooled the temperature to after being completely melt, semisolid molten magnesium alloy is obtained；
(2) titanium alloy particle-magnesium alloy blend melt is prepared：Average grain diameter is heated for 45 μm of TC4 titanium alloy particles
To 100 DEG C~200 DEG C, 20min~50min is preheated, the semisolid molten magnesium alloy for then obtaining step (1) is stirred,
Rotating speed is 600rpm~1000rpm, and at the same time preheated titanium alloy particle is added in semisolid molten magnesium alloy, after
Continue and be stirred 7min under conditions of rotating speed is 1000rpm~1500rpm, obtain titanium alloy particle-magnesium alloy blend melt,
The volume ratio of titanium alloy particle and semisolid molten magnesium alloy described in step (2) is 3:17；
(3) titanium alloy particle enhancing magnesium-based composite material is prepared：Titanium alloy particle-magnesium alloy that step (2) is obtained is mixed
Close melt and be warming up to liquid, in the temperature rise period using rotating speed maximum without vortex stirring, rotating speed is 250rpm~300rpm, then
Liquid blend melt is poured into the mould that temperature is 400 DEG C~450 DEG C, and in 100MPa~150MPa Under Pressure Solidifications,
Obtain titanium alloy particle enhancing magnesium-based composite material.
Embodiment 3：
The preparation method of the titanium alloy particle enhancing magnesium-based composite material of the present embodiment is carried out according to the following steps：
(1) semisolid molten magnesium alloy is prepared：Matrix AZ91 magnesium alloys are warming up to 700 DEG C~750 DEG C, matrix alloy is treated
560 DEG C~600 DEG C are cooled the temperature to after being completely melt, semisolid molten magnesium alloy is obtained；
(2) titanium alloy particle-magnesium alloy blend melt is prepared：Average grain diameter is heated for 45 μm of TC4 titanium alloy particles
To 100 DEG C~200 DEG C, 20min~50min is preheated, the semisolid molten magnesium alloy for then obtaining step (1) is stirred,
Rotating speed is 600rpm~1000rpm, and at the same time preheated titanium alloy particle is added in semisolid molten magnesium alloy, after
Continue and be stirred 10min under conditions of rotating speed is 1000rpm~1500rpm, obtain titanium alloy particle-magnesium alloy mixing molten
Body, the volume ratio of titanium alloy particle and semisolid molten magnesium alloy described in step (2) is 1:4；
(3) titanium alloy particle enhancing magnesium-based composite material is prepared：Titanium alloy particle-magnesium alloy that step (2) is obtained is mixed
Close melt and be warming up to liquid, in the temperature rise period using rotating speed maximum without vortex stirring, rotating speed is 250rpm~300rpm, then
Liquid blend melt is poured into the mould that temperature is 400 DEG C~450 DEG C, and in 100MPa~150MPa Under Pressure Solidifications,
Obtain titanium alloy particle enhancing magnesium-based composite material.
Embodiment 4：
The preparation method of the titanium alloy particle enhancing magnesium-based composite material of the present embodiment is carried out according to the following steps：
(1) semisolid molten magnesium alloy is prepared：Matrix AZ91 magnesium alloys are warming up to 700 DEG C~750 DEG C, matrix alloy is treated
560 DEG C~600 DEG C are cooled the temperature to after being completely melt, semisolid molten magnesium alloy is obtained；
(2) titanium alloy particle-magnesium alloy blend melt is prepared：Average grain diameter is heated for 25 μm of TC4 titanium alloy particles
To 100 DEG C~200 DEG C, 20min~50min is preheated, the semisolid molten magnesium alloy for then obtaining step (1) is stirred,
Rotating speed is 600rpm~1000rpm, and at the same time preheated titanium alloy particle is added in semisolid molten magnesium alloy, after
Continue and be stirred 7min under conditions of rotating speed is 1000rpm~1500rpm, obtain titanium alloy particle-magnesium alloy blend melt,
The volume ratio of titanium alloy particle and semisolid molten magnesium alloy described in step (2) is 1:9；
(3) titanium alloy particle enhancing magnesium-based composite material is prepared：Titanium alloy particle-magnesium alloy that step (2) is obtained is mixed
Close melt and be warming up to liquid, in the temperature rise period using rotating speed maximum without vortex stirring, rotating speed is 250rpm~300rpm, then
Liquid blend melt is poured into the mould that temperature is 400 DEG C~450 DEG C, and in 100MPa~150MPa Under Pressure Solidifications,
Obtain titanium alloy particle enhancing magnesium-based composite material.The performance of prepared material is shown in Table 1.
The mechanical property of TC4p/AZ91 magnesium-based composite materials prepared by the AZ91 magnesium alloys of table 1 and the present invention
Fig. 1 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 1, and Fig. 2 is prepared by embodiment 2
The SEM figures of TC4p/AZ91 magnesium-based composite materials, Fig. 3 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 3,
Fig. 4 is the SEM figures of TC4p/AZ91 magnesium-based composite materials prepared by embodiment 4, it can be seen that：TC4 titanium alloy particles are in the base
Distribution is all highly uniform, without obvious agglomeration, realizes the dispersed of TC4 titanium alloy particles.
Fig. 5 is the stress strain curve of AZ91 magnesium alloys and TC4p/AZ91 magnesium-based composite materials, and curve 1 is AZ91 magnesium alloys
Stress strain curve, curve 2 is the stress strain curve of the 45 μm of 10%TC4p/AZ91 magnesium-based composite materials prepared in embodiment 1, curve 3
It is the stress strain curve of the 45 μm of 15%TC4p/AZ91 magnesium-based composite materials prepared in embodiment 2, curve 4 is preparation in embodiment 3
45 μm of 20%TC4p/AZ91 magnesium-based composite materials stress strain curve, curve 5 is the 25 μm of 10%TC4p/ prepared in embodiment 4
The stress strain curve of AZ91 magnesium-based composite materials, it can be seen that：Compared with AZ91 magnesium alloys, TC4p/AZ91 magnesium-based composite materials
Intensity is significantly improved, and rise or the reduction of particle size with grain volume fraction, TC4p/AZ91 magnesium-based composite materials
Intensity also significantly improve therewith.
Claims (6)
1. a kind of titanium alloy particle strengthens the preparation method of magnesium-based composite material, it is characterised in that the preparation method is according to the following steps
Carry out：
First, semisolid molten magnesium alloy is prepared：Matrix magnesium alloy is warming up to 700 DEG C~750 DEG C, treats that matrix alloy is completely melt
After cool the temperature to 560 DEG C~600 DEG C, obtain semisolid molten magnesium alloy；
2nd, titanium alloy particle-magnesium alloy blend melt is prepared：Titanium alloy particle is heated to 100 DEG C~200 DEG C, 20min is preheated
~50min, the semisolid molten magnesium alloy for then obtaining step one is carried out under conditions of rotating speed is 600rpm~1000rpm
Preheated titanium alloy particle, is added in semisolid molten magnesium alloy by stirring while stirring, and continuation is in rotating speed
10min is stirred under conditions of 1000rpm~1500rpm, titanium alloy particle-magnesium alloy blend melt is obtained；Wherein, it is described
The volume ratio of titanium alloy particle and semisolid molten magnesium alloy be 1:4；
3rd, titanium alloy particle enhancing magnesium-based composite material is prepared：The titanium alloy particle that step 2 is obtained-magnesium alloy blend melt
Be heated to liquid under stirring, the temperature rise period using rotating speed it is maximum without vortex stirring, rotating speed be 250rpm~
Liquid blend melt, is then poured into the mould that temperature is 400 DEG C~450 DEG C by 300rpm, and in 100MPa~150MPa
Under Pressure Solidification, that is, obtain titanium alloy particle enhancing magnesium-based composite material；Matrix magnesium alloy described in step one is AZ91 magnesium
Alloy.
2. a kind of titanium alloy particle according to claim 1 strengthens the preparation method of magnesium-based composite material, it is characterised in that
Magnesium alloy substrate is warming up to 710 DEG C~740 DEG C in step one, 570 DEG C~600 DEG C is then cooled the temperature to, obtains semisolid
Molten magnesium alloy.
3. a kind of titanium alloy particle according to claim 2 strengthens the preparation method of magnesium-based composite material, it is characterised in that
Magnesium alloy substrate is warming up to 720 DEG C~730 DEG C in step one, 580 DEG C~600 DEG C is then cooled the temperature to, obtains semisolid
Molten magnesium alloy.
4. a kind of titanium alloy particle according to claim 3 strengthens the preparation method of magnesium-based composite material, it is characterised in that
Magnesium alloy substrate is warming up to 720 DEG C~730 DEG C in step one, 590 DEG C~600 DEG C is then cooled the temperature to, obtains semisolid
Molten magnesium alloy.
5. a kind of titanium alloy particle according to claim 1 strengthens the preparation method of magnesium-based composite material, it is characterised in that
The alloy melt that step 2 is obtained is heated to liquid in step 3, it is 420 that the alloy melt of liquid then is poured into temperature
DEG C~450 DEG C of mould in and in 120MPa~150MPa Under Pressure Solidifications, obtain titanium alloy particle enhancing magnesium-based composite material.
6. a kind of titanium alloy particle according to claim 1 strengthens the preparation method of magnesium-based composite material, it is characterised in that
The alloy melt that step 2 is obtained is heated to liquid in step 3, it is 430 that the alloy melt of liquid then is poured into temperature
DEG C~450 DEG C of mould in and in 130MPa~150MPa Under Pressure Solidifications, obtain titanium alloy particle enhancing magnesium-based composite material.
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| CN105543616A (en) * | 2015-12-14 | 2016-05-04 | 无锡福镁轻合金科技有限公司 | Composite material for throttle valve |
| CN107513651B (en) * | 2017-09-08 | 2019-07-26 | 燕山大学 | A kind of preparation method of titanium particle reinforced magnesium base composite material |
| CN109022859B (en) * | 2018-09-17 | 2020-12-01 | 太原理工大学 | Preparation method of nano titanium particle reinforced magnesium-based composite material |
| CN112342445A (en) * | 2020-09-10 | 2021-02-09 | 上海航天精密机械研究所 | High-strength plastic magnesium-based composite material and preparation method thereof |
| CN113493876B (en) * | 2021-07-07 | 2022-07-01 | 重庆大学 | Method for modifying surface of magnesium alloy through iron-based amorphous modification |
| CN114438385B (en) * | 2022-01-28 | 2023-04-07 | 重庆大学 | Preparation method of metal titanium particle reinforced magnesium-based composite material |
| CN114959391B (en) * | 2022-05-30 | 2023-01-06 | 广东省科学院新材料研究所 | Titanium particle reinforced magnesium-based composite material and preparation method thereof |
| CN115074560B (en) * | 2022-06-30 | 2023-03-14 | 广东省科学院新材料研究所 | Titanium particle reinforced magnesium matrix composite material and preparation method thereof |
| CN115852181B (en) * | 2022-11-28 | 2023-09-01 | 重庆大学 | Preparation method of micron-sized titanium particle reinforced magnesium-based composite material |
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| CN103789590B (en) * | 2014-03-04 | 2016-01-20 | 哈尔滨工业大学 | The preparation method of particle reinforced magnesium base compound material |
| CN103820670B (en) * | 2014-03-04 | 2016-05-25 | 哈尔滨工业大学 | A kind of preparation method of graphite granule reinforced magnesium base composite material |
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