CN101381832A - Heat resisting magnesium alloy and compound material containing heat resisting magnesium alloy and preparation method thereof - Google Patents

Heat resisting magnesium alloy and compound material containing heat resisting magnesium alloy and preparation method thereof Download PDF

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CN101381832A
CN101381832A CNA2008101559506A CN200810155950A CN101381832A CN 101381832 A CN101381832 A CN 101381832A CN A2008101559506 A CNA2008101559506 A CN A2008101559506A CN 200810155950 A CN200810155950 A CN 200810155950A CN 101381832 A CN101381832 A CN 101381832A
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magnesium alloy
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CN100582278C (en
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王玲
赵浩峰
颜开
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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Abstract

The invention provides a heat-resistant magnesium alloy, and the compositions in mass percentage of the alloy are: more than or equal to 3 percent and less than or equal to 7 percent of Al, more than or equal to 0.5 percent and less than or equal to 7 percent of Zn more than or equal to 0.5 percent and less than or equal to 2 percent of Ti, more than or equal to 1 percent and less than or equal to 6 percent of Sn, more than or equal to 0.01 percent and less than or equal to 0.1 percent of La, more than or equal to 0.5 percent and less than or equal to 4 percent of Si and more than or equal to 0.05 percent and less than or equal to 0.6 percent of Zr and the balance being manganese. The heat-resistant magnesium alloy uses only such normal non-precious rare elements as Al, Zn, Ti, Sn, La, Si and Zr, has low cost and keeps good heat-resistant property without adding the elements; and the plastic deformation rate of the alloy is 0.2 to 0.35 percent at the temperature of 250 DEG C and under the stress of 30Mpa, and the alloy can be widely applied in the working environment of high temperature. The heat-resistant magnesium-based porous composite material consists of heat-resistant magnesium alloy and a minimum-density heat-resistant inorganic porous material, has heat-resistant function and good damping property below the temperature of 250 DEG C, can be widely applied to the heat-resistant vibration-absorption parts and components of rapid machinery like an automobile, and has the advantages of good vibration-absorption, sound insulation and voice confusion. The composite material is simple in preparation process and low in production cost.

Description

Heat resistance magnesium alloy and contain matrix material of heat resistance magnesium alloy and preparation method thereof
One, technical field
The invention belongs to the magnesium alloy technical field, particularly a kind of heat resistance magnesium alloy and contain matrix material of heat resistance magnesium alloy and preparation method thereof.
Two, background technology
Magnesium alloy is widely used in the Industrial products manufacturing because of it has specific tenacity and the high performance characteristics of specific rigidity.But the thermotolerance of existing ordinary magnesium alloy is relatively poor, as with alloy as the matrix of matrix material, the thermotolerance of matrix material is also with relatively poor.Research to heat resistance magnesium alloy at present has a lot: patent 200710056175.4 proposes a kind of preparation method of porous magnesium-expansion perlite composition material, and the matrix that this patent is used is metal M g or AZ91 magnesium alloy, and the drag of heat-resisting function is low.Owing to adopt the vacuum seepage means, therefore have relatively high expectations in addition, and used a large amount of assistant agents to handle perlite, complex procedures perlitic.Patent 200610112622.9 proposes a kind of heat resistance magnesium alloy, its component content is: Y is 4.5~10wt%, Gd is 0~8wt%, and Dy is 0~5wt%, and Tb is 0~5wt%, Ho is 0~5wt%, Er is 0~5wt%, and Tm is 0~5wt%, and Nd is 2~4.5wt%, Sm is 0~3.5wt%, and all the other are Mg.The preparation method of this alloy material comprises: get the raw materials ready (1); (2) preheating oven, smelting furnace heat up; (3) ingot metal of preheating material or their alloy pig; (4) melt the preheated pure magnesium ingot in batches; (5) other pure metal ingot or their alloy pig after the preheating submerged and melt in the magnesium melt; (6) insulation is evenly distributed in the magnesium melt all alloying elements; (7) the magnesium alloy liquation is poured into ingot casting or foundry goods; Perhaps carry out continuous or semicontinuous casting; Perhaps carry out extrusion casting or be cast into foundry goods.Patent 200610112627.1 proposes a kind of heat resistance magnesium alloy, and the component content of this magnesium alloy is: Y is 8~16wt%, and Nd is 2~4.5wt%, and all the other are Mg.The preparation method of this alloy material comprises: get the raw materials ready (1); (2) preheating oven, smelting furnace heat up; (3) preheating pure magnesium ingot, pure Y ingot and pure Nd ingot; (4) under the protection of shielding gas, melt the preheating pure magnesium ingot in batches; (5) the Y ingot after the preheating and Nd ingot are submerged melt in the magnesium melt; (6) the magnesium melt temperature is controlled at 720~860 ℃, treat that Y and Nd dissolve fully after, again 750~860 ℃ the insulation 10~60 minutes, alloying element Y and Nd are evenly distributed in the magnesium melt; (7) the magnesium alloy liquation is poured into ingot casting or foundry goods; Perhaps carry out continuous or semicontinuous casting; Perhaps carry out extrusion casting or be cast into foundry goods.Patent 200710118447.9 proposes a kind of heat resistance magnesium alloy that contains rare earth and preparation method thereof, be in AZ91D, AM50B or AM60B liquation, to add the Mg-rare earth intermediate alloy, form through die casting, wherein, the content of this heat resistance magnesium alloy middle-weight rare earths is 0.10~3.0wt%, and described rare earth is any one in La, Pr, Sm, Eu, Tb, Ho, Er, Tm, Dy, Gd, Ce, Y, cerium-rich mischmetal and the rich neodymium mixed rare-earth.The preparation method of this alloy material comprises: founding Mg-10~60 weight % rare earth intermediate alloy ingot blanks also are squeezed into wire rod or bar with it; With AZ91D, AM50B or the fusing of AM60B magnesium alloy, the wire rod or the bar of this rare earth intermediate alloy are cut into chunks, add after the preheating in AZ91D, AM50B or the AM60B liquation, be cast into heat resistance magnesium alloy.More than the common feature of these patents are thermotolerances by the whole reinforced alloys of method of alloying, but shortcoming is to have used a large amount of rare your element in alloy, as used Y, Gd, Dy, Tb, Ho, Er, Tm, Eu, Gd etc., and their preparation technology is also loaded down with trivial details relatively.Patent 200710021155.3 avoids having used above-mentioned rare your element, a kind of heat resistance casting magnesium alloy and preparation method thereof is proposed, the weight percent of each component is: Al:4.5~5.5%, Mn:0.28~0.40%, Ca:0.8~1.2%, Sr:0.1~0.2%, Ce:3~4%, Zn: Si≤0.20%: Fe≤0.08%: Cu≤0.004%: Ni≤0.008%: other impurity elements≤0.05%≤0.001%,, surplus are Mg.The average tensile strength of this invention alloy under as cast condition is 235MPa, and yield strength is 160MPa, and elongation after fracture is 6%.A kind of heat resistance magnesium alloy of patent 200710035111.6 same propositions, its weight percent consists of: Al7%~10%, Zn0.8%~1.2%, Mn0.1%~0.8%, Ca0.1%~1.5%, Sr0.05%~0.15%, Mg88%~91%, during melting respectively the form with Al-Ca, Al-Sr master alloy in magnesium alloy fused mass, add Ca and Sr, the magnesium alloy that obtains after the melting is after 410 ℃, 16~24 hours solution treatment, and the ageing treatment of carrying out under 180 ℃ temperature 16~40 hours improves its intensity.More than technological deficiency in each patent be all to have used Elements C a because the character of Ca is very active, therefore the specific absorption instability in alloy finally influences the performance of alloy.
Three, summary of the invention
Technical problem: the present invention is directed to above-mentioned technological deficiency, good magnesium alloy of a kind of resistance toheat and the preparation method who contains matrix material and this alloy and the matrix material of this magnesium alloy are provided.Matrix material by this alloy preparation has good heat-resistant, low cost of manufacture, and the preparation method is simple.
Technical scheme: a kind of heat resistance magnesium alloy, the mass percent of this alloy composition composition is: 3%≤Al≤7%, 0.5%≤Zn≤5%, 0.5%≤Ti≤2%, 1%≤Sn≤6%, 0.01%≤La≤0.1%, 0.5%≤Si≤4%, 0.05%≤Zr≤0.6%, all the other are Mg.
A kind ofly contain the composite porous of heat resistance magnesium alloy, this material is the metal-base composites that contains inorganic non-metallic phase composite grain, described metal matrix is a heat resistance magnesium alloy, described inorganic non-metallic phase composite grain is to have the perlite of pore and float pearl, perlite and float the pearl composite grain be of a size of 0.5~2mm in alloy, perlitic density is 1~2.2g/cm 3, floating pearl density is 0.8~1.2g/cm 3, the shared volume percent in composite porous of inorganic non-metallic phase composite grain is 20~75%, the perlite and the weight ratio of floating pearl are 9.5:0.5~0.5:9.5 in the inorganic non-metallic phase composite grain.
A kind of method for preparing heat resistance magnesium alloy, preparation process is: be 3%≤Al≤7% according to the quality percentage composition earlier, 0.5%≤Zn≤5%, 0.5%≤Ti≤2%, 1%≤Sn≤6%, 0.01%≤La≤0.1%, 0.5%≤Si≤4%, 0.05%≤Zr≤0.6%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 710~750 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, obtains heat resistance magnesium alloy at 10-15 minute postcooling of 715~750 ℃ of insulations.
A kind of preparation contains the composite porous method of heat resistance magnesium alloy, preparation process is: according to the quality percentage composition is 3%≤Al≤7%, 0.5%≤Zn≤5%, 0.5%≤Ti≤2%, 1%≤Sn≤6%, 0.01%≤La≤0.1%, 0.5%≤Si≤4%, 0.05%≤Zr≤0.6%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 710~750 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, at 10~15 minutes postcooling of 715~750 ℃ of insulations, obtain heat resistance magnesium alloy, heat resistance magnesium alloy is cut into the grain piece that mean sizes is 2~4mm, add perlite that mean particle size is of a size of 0.5~2mm then and float pearl inorganic non-metallic composite grain mutually, again with magnesium alloy and inorganic non-metallic composite grain uniform mixing mutually, the volume ratio of inorganic non-metallic phase composite grain and heat resistance magnesium alloy grain piece is 3:4~15, perlite is 9.5:0.5~0.5:9.5 with the weight ratio of floating the inorganic composite grain mutually of pearl, the mixture of inorganic non-metallic phase and Mg-alloy particles piece composition put into mould compacting, again at nitrogen/SF thereafter 6In the hybrid protection protective atmosphere with mould temperature rise to 700~710 ℃, nitrogen and SF 6Volume ratio be 2:8, insulation is taken out mould behind 20~30min, is cooled to room temperature and obtains containing the composite porous of heat resistance magnesium alloy in nitrogen atmosphere.
Beneficial effect: heat resistance magnesium alloy of the present invention, only use conventional non-valuable rare elements such as Al, Zn, Ti, Sn, La, Si, Zr, the cost of alloy is lower, when not adding above-mentioned element, kept good heat-resistant, at 250 ℃ and stress is under the 30MPa condition, and its viscous deformation rate is 0.2-0.35%.Can be widely used in the Working environment of comparatively high temps.Heat-proof magnesium-base of the present invention is composite porous to be made up of heat resistance magnesium alloy and the minimum inorganic porous material of heat-stable density, and matrix material not only has heat-resisting function, and has good damping performance below 250 ℃.Can be widely used in quick heat-resisting absorbing component mechanically such as automobile, have good absorbing, sound insulation, noise control effect.The process for producing of this material is simple, and production cost is low.
Four, description of drawings
Fig. 1 is the tissue of refractory alloy;
Fig. 2 does the composite porous of matrix by refractory alloy.
Five, embodiment
Embodiment 1:
A kind of heat resistance magnesium alloy, the mass percent of this alloy composition composition is: Al 3%, and Zn 0.5%, Ti0.5%, Sn 1%, and La 0.01%, and Si 0.5%, and Zr 0.05%, and all the other are Mg.
A kind ofly contain the composite porous of heat resistance magnesium alloy, this material is the metal-base composites that contains inorganic non-metallic phase composite grain, described metal matrix is a heat resistance magnesium alloy, described inorganic non-metallic phase composite grain is to have the perlite of pore and float pearl, perlite and float the pearl composite grain be of a size of 0.5mm in alloy, perlitic density is 1g/cm 3, floating pearl density is 0.8g/cm 3, the shared volume percent in composite porous of inorganic non-metallic phase composite grain is 20%, the perlite and the weight ratio of floating pearl are 9.5:0.5 in the inorganic non-metallic phase composite grain.
The method for preparing heat resistance magnesium alloy, preparation process is: be Al 3% according to the quality percentage composition earlier, Zn0.5%, Ti 0.5%, Sn 1%, La 0.01%, Si 0.5%, Zr 0.05%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 710 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, obtains heat resistance magnesium alloy at 10 minutes postcooling of 715 ℃ of insulations.
Preparation contains the composite porous method of heat resistance magnesium alloy, preparation process is: according to the quality percentage composition is Al 3%, Zn 0.5%, Ti 0.5%, Sn 1%, La 0.01%, Si 0.5%, Zr 0.05%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 710 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, at 10 minutes postcooling of 715 ℃ of insulations, obtain heat resistance magnesium alloy, heat resistance magnesium alloy is cut into the grain piece that mean sizes is 2mm, add perlite that mean particle size is of a size of 0.5mm then and float pearl inorganic non-metallic composite grain mutually, again with magnesium alloy and inorganic non-metallic composite grain uniform mixing mutually, the volume ratio of inorganic non-metallic phase composite grain and heat resistance magnesium alloy grain piece is 3:15, perlite is 9.5:0.5 with the weight ratio of floating the inorganic composite grain mutually of pearl, the mixture of inorganic non-metallic phase and Mg-alloy particles piece composition put into mould compacting, again at nitrogen/SF thereafter 6In the hybrid protection protective atmosphere with mould temperature rise to 700 ℃, nitrogen and SF 6Volume ratio be 2:8, insulation is taken out mould behind the 20min, is cooled to room temperature and obtains containing the composite porous of heat resistance magnesium alloy in nitrogen atmosphere.
Embodiment 2:
A kind of heat resistance magnesium alloy, the mass percent of this alloy composition composition is: Al 7%, and Zn 5%, Ti2%, Sn 6%, and La 0.1%, and Si 4%, and Zr 0.6%, and all the other are Mg.
A kind ofly contain the composite porous of heat resistance magnesium alloy, this material is the metal-base composites that contains inorganic non-metallic phase composite grain, described metal matrix is a heat resistance magnesium alloy, described inorganic non-metallic phase composite grain is to have the perlite of pore and float pearl, perlite and float the pearl composite grain be of a size of 2mm in alloy, perlitic density is 2.2g/cm 3, floating pearl density is 1.2g/cm 3, the shared volume percent in composite porous of inorganic non-metallic phase composite grain is 75%, the perlite and the weight ratio of floating pearl are 0.5:9.5 in the inorganic non-metallic phase composite grain.
The method for preparing heat resistance magnesium alloy, preparation process is: earlier according to the quality percentage composition be Al 7%, Zn5%, Ti 2%, Sn 6%, La 0.1%, Si 4%, Zr 0.6%, all the other prepare burden for the alloying constituent proportioning of Mg, the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 750 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, obtains heat resistance magnesium alloy at 15 minutes postcooling of 750 ℃ of insulations.
Preparation contains the composite porous method of heat resistance magnesium alloy, preparation process is: according to the quality percentage composition is Al 7%, Zn 5%, Ti 2%, Sn 6%, La 0.1%, Si 4%, Zr 0.6%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 750 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, at 15 minutes postcooling of 750 ℃ of insulations, obtain heat resistance magnesium alloy, heat resistance magnesium alloy is cut into the grain piece that mean sizes is 4mm, add perlite that mean particle size is of a size of 2mm then and float pearl inorganic non-metallic composite grain mutually, again with magnesium alloy and inorganic non-metallic composite grain uniform mixing mutually, the volume ratio of inorganic non-metallic phase composite grain and heat resistance magnesium alloy grain piece is 3:4, perlite is 0.5:9.5 with the weight ratio of floating the inorganic composite grain mutually of pearl, the mixture of inorganic non-metallic phase and Mg-alloy particles piece composition put into mould compacting, again at nitrogen/SF thereafter 6In the hybrid protection protective atmosphere with mould temperature rise to 710 ℃, nitrogen and SF 6Volume ratio be 2:8, insulation is taken out mould behind the 30min, is cooled to room temperature and obtains containing the composite porous of heat resistance magnesium alloy in nitrogen atmosphere.
Embodiment 3:
A kind of heat resistance magnesium alloy, the mass percent of this alloy composition composition is: Al 7%, and Zn 2%, Ti2%, Sn 3%, and La 0.08%, and Si 4%, and Zr 0.5%, and all the other are Mg.
A kind ofly contain the composite porous of heat resistance magnesium alloy, this material is the metal-base composites that contains inorganic non-metallic phase composite grain, described metal matrix is a heat resistance magnesium alloy, described inorganic non-metallic phase composite grain is to have the perlite of pore and float pearl, perlite and float the pearl composite grain be of a size of 1mm in alloy, perlitic density is 1.5g/cm 3, floating pearl density is 1.0g/cm 3, the shared volume percent in composite porous of inorganic non-metallic phase composite grain is 50%, the perlite and the weight ratio of floating pearl are 1:1 in the inorganic non-metallic phase composite grain.
The method for preparing heat resistance magnesium alloy, preparation process is: earlier according to the quality percentage composition be Al 7%, Zn2%, Ti 2%, Sn 3%, La 0.08%, Si 4%, Zr 0.5%, all the other prepare burden for the alloying constituent proportioning of Mg, the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 720 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, obtains heat resistance magnesium alloy at 12 minutes postcooling of 720 ℃ of insulations.
Preparation contains the composite porous method of heat resistance magnesium alloy, preparation process is: according to the quality percentage composition is Al 7%, Zn 2%, Ti 2%, Sn 3%, La 0.08%, Si 4%, Zr 0.5%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 720 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, at 8 minutes postcooling of 720 ℃ of insulations, obtain heat resistance magnesium alloy, heat resistance magnesium alloy is cut into the grain piece that mean sizes is 3mm, add perlite that mean particle size is of a size of 1mm then and float pearl inorganic non-metallic composite grain mutually, again with magnesium alloy and inorganic non-metallic composite grain uniform mixing mutually, the volume ratio of inorganic non-metallic phase composite grain and heat resistance magnesium alloy grain piece is 3:7, perlite is 1:1 with the weight ratio of floating the inorganic composite grain mutually of pearl, the mixture of inorganic non-metallic phase and Mg-alloy particles piece composition put into mould compacting, again at nitrogen/SF thereafter 6In the hybrid protection protective atmosphere with mould temperature rise to 705 ℃, nitrogen and SF 6Volume ratio be 2:8, insulation is taken out mould behind the 25min, is cooled to room temperature and obtains containing the composite porous of heat resistance magnesium alloy in nitrogen atmosphere.
Embodiment 4:
Table 1 refractory alloy
The alloy numbering Composition Viscous deformation rate/30MPa * 100 hour Working temperature/℃
Comparative alloy Al is 9%, and Zn is 1%, and all the other are Mg 3.23% 250
Comparative alloy Al is 9%, and Zn is 1%, and all the other are Mg 0.6% 100
This case Al 7%, and Zn 2%, and Ti 2%, and Sn 3%, and La 0.08%, and Si 4%, Zr0.5%, and all the other are Mg 0.35% 250
This case Al7%, Zn2%, Ti2%, Sn 3%, La0.08%, Si 4%, Zr0.5%, all the other are Mg 0.02% 100
Table 2 heat-resisting composite
Material type Structural constituent Strain is shock stress/MPa of 0.01% o'clock Working temperature/℃
Contrast material Matrix Al is 9%, and Zn is 1%, and all the other are the inorganic phase composite grain of Mg/50% 0 250
Contrast material Matrix Al is 9%, and Zn is 1%, and all the other are the inorganic phase composite grain of Mg/50% 50 100
This case The composition of matrix alloy is: Al 7%, Zn 30 250
2%, Ti 2%, and Sn 3%, and La 0.08%, and Si 4%, and Zr 0.5%, and all the other are Mg.The volume ratio of matrix alloy and inorganic composite grain mutually is 1:1.
This case The composition of matrix alloy is: Al7%, and Zn2%, Ti2%, Sn3%, La0.08%, Si4%, Zr0.5%, all the other are Mg.The volume ratio of matrix alloy and inorganic composite grain mutually is 1:1.All the other are Mg.The volume ratio of matrix alloy and inorganic composite grain mutually is 1:1. 35 100

Claims (4)

1. a heat resistance magnesium alloy is characterized in that the mass percent of this alloy composition composition is: 3%≤Al≤7%, 0.5%≤Zn≤5%, 0.5%≤Ti≤2%, 1%≤Sn≤6%, 0.01%≤La≤0.1%, 0.5%≤Si≤4%, 0.05%≤Zr≤0.6%, all the other are Mg.
2. one kind contains the composite porous of the described heat resistance magnesium alloy of claim 1, it is characterized in that this material is the metal-base composites that contains inorganic non-metallic phase composite grain, described metal matrix is a heat resistance magnesium alloy, described inorganic non-metallic phase composite grain is to have the perlite of pore and float pearl, perlite and float the pearl composite grain be of a size of 0.5~2mm in alloy, perlitic density is 1~2.2g/cm 3, floating pearl density is 0.8~1.2g/cm 3, the shared volume percent in composite porous of inorganic non-metallic phase composite grain is 20~75%, the perlite and the weight ratio of floating pearl are 9.5:0.5~0.5:9.5 in the inorganic non-metallic phase composite grain.
3. method for preparing the described heat resistance magnesium alloy of claim 1, it is characterized in that preparation process is: be 3%≤Al≤7% according to the quality percentage composition earlier, 0.5%≤Zn≤5%, 0.5%≤Ti≤2%, 1%≤Sn≤6%, 0.01%≤La≤0.1%, 0.5%≤Si≤4%, 0.05%≤Zr≤0.6%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, be filled with SF6 gas in the smelting furnace, when temperature rises to 710~750 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, obtains heat resistance magnesium alloy at 10-15 minute postcooling of 715~750 ℃ of insulations.
4. one kind prepares the described composite porous method that contains heat resistance magnesium alloy of claim 2, it is characterized in that preparation process is: according to the quality percentage composition is 3%≤Al≤7%, 0.5%≤Zn≤5%, 0.5%≤Ti≤2%, 1%≤Sn≤6%, 0.01%≤La≤0.1%, 0.5%≤Si≤4%, 0.05%≤Zr≤0.6%, all the other are prepared burden for the alloying constituent proportioning of Mg, with the pure Mg ingot bar that weighs up, pure Al ingot bar, pure Zn ingot bar, pure Sn bar, Al-Ti master alloy piece and Al-Si master alloy piece are put into the smelting furnace heat fused, wherein the Ti quality percentage composition in the Al-Ti master alloy piece is 20%, Si quality percentage composition in the Al-Si master alloy piece is 30%, is filled with SF in the smelting furnace 6Gas, when temperature rises to 710~750 ℃, to contain La quality percentage composition and be 10% Mg-La master alloy and contain Zr quality percentage composition is that 10% Mg-Zr master alloy piece adds in the fused liquid magnesium alloy, at 10~15 minutes postcooling of 715~750 ℃ of insulations, obtain heat resistance magnesium alloy, heat resistance magnesium alloy is cut into the grain piece that mean sizes is 2~4mm, add perlite that mean particle size is of a size of 0.5~2mm then and float pearl inorganic non-metallic composite grain mutually, again with magnesium alloy and inorganic non-metallic composite grain uniform mixing mutually, the volume ratio of inorganic non-metallic phase composite grain and heat resistance magnesium alloy grain piece is 3:4~15, perlite is 9.5:0.5~0.5:9.5 with the weight ratio of floating the inorganic composite grain mutually of pearl, the mixture of inorganic non-metallic phase and Mg-alloy particles piece composition put into mould compacting, again at nitrogen/SF thereafter 6In the hybrid protection protective atmosphere with mould temperature rise to 700~710 ℃, nitrogen and SF 6Volume ratio be 2:8, insulation is taken out mould behind 20~30min, is cooled to room temperature and obtains containing the composite porous of heat resistance magnesium alloy in nitrogen atmosphere.
CN200810155950A 2008-10-14 2008-10-14 Heat resistant magnesium alloy and composite material containing heat resistant magnesium alloy and its preparation method Expired - Fee Related CN100582278C (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948975A (en) * 2010-09-21 2011-01-19 华南理工大学 Mg-Sn-Si-La series heat-resistant magnesium alloy and preparation method thereof
CN102634710A (en) * 2012-05-07 2012-08-15 东莞市闻誉实业有限公司 Al-Zn-Mg alloy and preparation method thereof
CN104120296A (en) * 2014-08-08 2014-10-29 哈尔滨工业大学 Preparation method of high-electromagnetic-shielding hollow micro-sphere enhanced AZ91 magnesium matrix composite
CN104357693A (en) * 2014-12-09 2015-02-18 中国石油大学(华东) Preparation method of floating bead/AZ91D magnesium alloy composite material
CN105238977A (en) * 2015-11-06 2016-01-13 中国石油大学(华东) High-damping magnesium alloy composite material and preparation method thereof
CN105256209A (en) * 2015-10-09 2016-01-20 天长市兴宇铸造有限公司 Nanometer yttrium oxide modifying Mg-Al-Zn magnesium alloy material for casting automobile parts and preparation method thereof
CN105483481A (en) * 2015-11-25 2016-04-13 山东银光钰源轻金属精密成型有限公司 Method for manufacturing magnesium alloy bullet train table board supporting arm
CN105543522A (en) * 2016-01-06 2016-05-04 安徽祈艾特电子科技股份有限公司 Nano zirconium boride modified Mg-Al-Zn series magnesium alloy material for casting automobile parts and preparation method of nano zirconium boride modified Mg-Al-Zn series magnesium alloy material
CN105543523A (en) * 2016-01-06 2016-05-04 安徽祈艾特电子科技股份有限公司 Nano molybdenum carbide modified Mg-Al-Zn series magnesium alloy material for casting automobile parts and preparation method of nano molybdenum carbide modified Mg-Al-Zn series magnesium alloy material
CN105568096A (en) * 2015-11-25 2016-05-11 山东银光钰源轻金属精密成型有限公司 Magnesium alloy semi-continuous casting process

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948975A (en) * 2010-09-21 2011-01-19 华南理工大学 Mg-Sn-Si-La series heat-resistant magnesium alloy and preparation method thereof
CN101948975B (en) * 2010-09-21 2012-05-23 华南理工大学 Mg-Sn-Si-La series heat-resistant magnesium alloy and preparation method thereof
CN102634710A (en) * 2012-05-07 2012-08-15 东莞市闻誉实业有限公司 Al-Zn-Mg alloy and preparation method thereof
CN104120296A (en) * 2014-08-08 2014-10-29 哈尔滨工业大学 Preparation method of high-electromagnetic-shielding hollow micro-sphere enhanced AZ91 magnesium matrix composite
CN104357693A (en) * 2014-12-09 2015-02-18 中国石油大学(华东) Preparation method of floating bead/AZ91D magnesium alloy composite material
CN105256209A (en) * 2015-10-09 2016-01-20 天长市兴宇铸造有限公司 Nanometer yttrium oxide modifying Mg-Al-Zn magnesium alloy material for casting automobile parts and preparation method thereof
CN105238977A (en) * 2015-11-06 2016-01-13 中国石油大学(华东) High-damping magnesium alloy composite material and preparation method thereof
CN105483481A (en) * 2015-11-25 2016-04-13 山东银光钰源轻金属精密成型有限公司 Method for manufacturing magnesium alloy bullet train table board supporting arm
CN105568096A (en) * 2015-11-25 2016-05-11 山东银光钰源轻金属精密成型有限公司 Magnesium alloy semi-continuous casting process
CN105483481B (en) * 2015-11-25 2017-10-27 山东银光钰源轻金属精密成型有限公司 A kind of preparation method of magnesium alloy motor-car table support arm
CN105543522A (en) * 2016-01-06 2016-05-04 安徽祈艾特电子科技股份有限公司 Nano zirconium boride modified Mg-Al-Zn series magnesium alloy material for casting automobile parts and preparation method of nano zirconium boride modified Mg-Al-Zn series magnesium alloy material
CN105543523A (en) * 2016-01-06 2016-05-04 安徽祈艾特电子科技股份有限公司 Nano molybdenum carbide modified Mg-Al-Zn series magnesium alloy material for casting automobile parts and preparation method of nano molybdenum carbide modified Mg-Al-Zn series magnesium alloy material

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