CN102618762A - Heat-resisting magnesium alloy - Google Patents
Heat-resisting magnesium alloy Download PDFInfo
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- CN102618762A CN102618762A CN2012101077162A CN201210107716A CN102618762A CN 102618762 A CN102618762 A CN 102618762A CN 2012101077162 A CN2012101077162 A CN 2012101077162A CN 201210107716 A CN201210107716 A CN 201210107716A CN 102618762 A CN102618762 A CN 102618762A
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 114
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 41
- 239000000956 alloy Substances 0.000 claims abstract description 41
- 239000011777 magnesium Substances 0.000 claims abstract description 34
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 29
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 27
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 15
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 5
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 17
- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 5
- 229910052689 Holmium Inorganic materials 0.000 claims description 5
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052771 Terbium Inorganic materials 0.000 claims description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 5
- 238000005266 casting Methods 0.000 abstract description 35
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000004512 die casting Methods 0.000 abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010955 niobium Substances 0.000 abstract 3
- 239000011572 manganese Substances 0.000 abstract 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 23
- 239000007789 gas Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 238000010792 warming Methods 0.000 description 12
- 239000006104 solid solution Substances 0.000 description 11
- 238000007669 thermal treatment Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000007670 refining Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 229910017702 MgZr Inorganic materials 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229910017863 MgGd Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005495 investment casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910016952 AlZr Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910017916 MgMn Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010120 permanent mold casting Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
The invention discloses heat-resisting magnesium alloy and belongs to the field of magnesium alloy. The heat-resisting magnesium alloy comprises the following elements in percent by weight: 1.5 to 25% of Al (aluminium), 0.1 to 2% of Mn (manganese), 0.0002 to 16% of rare earth, 0.0002 to 4% of Nb (niobium), 0.001 to 2% of Zr (zirconium), and Mg (magnesium) in balancing amount. The beta-phase structure is changed by adding the rare earth element and the Nb element in the magnesium alloy, and the grain refinement and the alloy liquid purification are achieved by adding the Zr element, so as to improve the high temperature resistance of the magnesium alloy, and obtain the heat-resisting magnesium alloy which has an excellent mechanical property, machinability, flowability and good die-casting performance and is suitable for casting, particularly die-casting.
Description
Technical field
The present invention relates to a kind of magnesiumalloy, particularly a kind of MgAlMn with good die casting property is a heat resistance magnesium alloy.
Background technology
Along with development of science and technology, be that the vehicles of representative need come the further higher product innovation of research and development fuel availability through alleviating the weight of vehicle body with the automobile.In automobile industry, magnesiumalloy is used for substituting traditional cast iron as a kind of novel lightweight metal material by automaker, to realize alleviating the purpose of tare.
At present, homemade MgAlMn is that the diecast magnesium alloy trade mark has YM202, YM203, YM204, YM205; The MgAlMn of USS ASTM B is that the diecast magnesium alloy trade mark has AM50A, AM60A, AM60B; The MgAlMn of Nippon Standard JIS H is that the diecast magnesium alloy trade mark has MDC2B, MDC4, MDC5; The MgAlMn of European standard EN is that the diecast magnesium alloy trade mark has EN-MC21210, EN-MC21220, EN-MC21230.The alloy of these trades mark, flowability, mechanical property, die casting performance are all very good, are widely used in cast forms such as permanent mold casting, precision casting, low-pressure casting, die casting, semi-solid casting, sand mold casting.Simultaneously, the MgAlMn series deformation magnesium alloy also has application.
In realizing process of the present invention, the contriver finds that there is following problem at least in prior art: some parts on the automobile, as: some parts on the mover, working temperature is higher, and also exists light-weighted demand.But above-mentioned MgAlMn series magnesium alloy since alloy structure in β with Mg
17Al
12Be main, Mg
17Al
12Fusing point is lower, non-refractory, and above-mentioned MgAlMn series magnesium alloy is merely tens MPa in the tensile strength under 200 ℃ of high temperature, so the parts of its production are inappropriate under hot environment and work, thereby can't satisfy the high temperature resistant demand of the above-mentioned parts of automobile.
Thereby, this area be badly in need of a kind of good mechanical performance, high temperature resistant, can be applicable to the casting or the magnesiumalloy of rolling deformation.
Summary of the invention
In order to solve the problem that exists in the above-mentioned prior art, the embodiment of the invention provides a kind of have good die casting property, the rolling heat resistance magnesium alloy of ability.Said technical scheme is following:
A kind of heat resistance magnesium alloy, said magnesiumalloy is made up of Mg, Al, Mn, rare earth (RE), Nb, Zr, and its weight percent consists of Al 1.5-25%, Mn 0.1-2%, rare earth 0.0002-16%, Nb 0.0002-4%, Zr 0.001-2%, and all the other are Mg.
Wherein, said rare earth is at least a among Gd, Y, Sc, Sm, Nd, Pr, Yb, La, Ce, Tb, Dy, Ho and the Er.
Preferably, said rare earth is at least a among Gd or Gd and Y, Sc, Sm, Nd, Pr, Yb, La, Ce, Tb, Dy, Ho and the Er.
Preferably, its weight percent consists of Al 1.6-6.5%, Mn 0.13-0.7%, Gd 0.1-2%, Nb 0.05-1%, Zr0.2-0.9%, and all the other are Mg.
Choosing is more arranged, and its weight percent consists of Al 4.4-6.5%, Mn 0.26-0.6%, Gd 0.1-0.8%, Nb 0.05-0.6%, Zr 0.2-0.9%, and all the other are Mg.
Most preferably, its weight percent consists of Al 6%, Mn 0.45%, Gd 0.4%, Nb 0.2%, Zr 0.6%, and all the other are Mg.
Wherein, said Nb adds in the said magnesiumalloy through the form of AlNb master alloy or NbAl master alloy.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: in the magnesiumalloy provided by the invention; Because RE can form the MgRE compound with Mg; Nb can form some resistant to elevated temperatures metallic compounds with other elements (like Al), and these metallic compounds are distributed on the crystal boundary, have substituted part Mg
17Al
12The β phase has changed the structure of β phase; Zr crystal grain thinning strongly in addition, can also with some impurity element (as: Fe, Si, Ni) reaction and the deposition in the alloy liquid, purified alloy liquid.Under the combined action of above-mentioned element, improved the resistance to elevated temperatures of magnesiumalloy, obtained a kind of good mechanical property that has, machinability, flowability and die casting property are good, and suitable casting is the heat resistance magnesium alloy of die casting especially.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will do to describe in detail further to embodiment of the present invention below.
The manufacture craft of the magnesiumalloy that the embodiment of the invention provides, heat treating method are explained as follows:
1, the magnesiumalloy that provides of the embodiment of the invention can be made through following three kinds of melting technologies:
Technology one: the magnesiumalloy according to the embodiment of the invention provides is formed and the content alloyage; In resistance furnace, add magnesium ingot, aluminium ingot, MgMn master alloy, AlNb master alloy or NbAl master alloy, MgZr master alloy or AlZr master alloy; Heat up for used resistance furnace, when the above-mentioned metal that adds melts soon, adopt gas shield or magnesium alloy covering agent protection.Add MgRE master alloy (like MgGd, MgY, MgNd etc.) or AlRE master alloy when being warmed up to 720 ℃-780 ℃, and stir, leave standstill insulation 30 minutes, get alloy liquid at 720 ℃-780 ℃.Water a fritter sample with gained alloy liquid, detect its melting quality, as: carry out the gas content inspection according to the gas content inspection method,, need carry out refining treatment if second-rate; If up-to-standard, the temperature adjustment to 700 of said alloy liquid is skimmed by ℃-740 ℃, to pour into a mould then, the foundry goods or the preparation that promptly obtain alloy of the present invention are used for rolling ingot bar.
Resistance furnace also can use other smelting furnaces to replace in this technology; Shielding gas can be an argon gas, also can be SF
6, can also be CO
2, or their mixed gas; Magnesium alloy covering agent and master alloy product are the market sale product; The refining treatment method adopts the ordinary method of the industry.
Technology two: the magnesiumalloy according to the embodiment of the invention provides is formed and the content alloyage; In vacuum oven, add aluminium ingot, Mn or Mn agent, AlNb master alloy or NbAl master alloy, MgZr master alloy; Be warming up to 820 ℃; Be incubated 2-8 hour, cool to 720 ℃-780 ℃ then, add magnesium ingot and RE.720 ℃-780 ℃ insulations 30 minutes, get alloy liquid behind the melting of metal of waiting to be added, adopt the protection of gas shield or magnesium alloy covering agent to prevent the alloy liquid oxidation.Water a fritter sample with gained alloy liquid, detect its melting quality, as: the inspection of gas content, if second-rate, need carry out refining treatment; If up-to-standard, the temperature adjustment to 700 of said alloy liquid is skimmed by ℃-740 ℃, to pour into a mould then, the foundry goods or the preparation that promptly obtain alloy of the present invention are used for rolling ingot bar.
Vacuum oven can substitute with other smelting furnaces such as main frequency furnaces in this technology; Shielding gas can be an argon gas, also can be SF
6, can also be CO
2, or their mixed gas; Magnesium alloy covering agent, rare earth, Mn agent, master alloy are sell goods on the market; The refining treatment method adopts the ordinary method of the industry.
Technology three: the magnesiumalloy according to the embodiment of the invention provides is formed and the content alloyage; In smelting furnace, adding standard brand MgAlMn is diecast magnesium alloy, AlNb master alloy or NbAl master alloy, MgZr master alloy, adopts gas shield or magnesium alloy covering agent protection when above-mentioned metal melts soon.Add MgRE master alloy (like MgGd, MgY, MgNd etc.) or AlRE master alloy when being warmed up to 720 ℃-780 ℃, and stir, leave standstill insulation 30 minutes, get alloy liquid at 720 ℃-780 ℃.Water a fritter sample with gained alloy liquid, detect its melting quality, as: carry out the gas content inspection according to the gas content inspection method,, need carry out refining treatment if second-rate; If up-to-standard, the temperature adjustment to 700 of said alloy liquid is skimmed by ℃-740 ℃, to pour into a mould then, the foundry goods or the preparation that promptly obtain alloy of the present invention are used for rolling ingot bar.
Shielding gas can be an argon gas in this technology, also can be SF
6, can also be CO
2, or their mixed gas; Magnesium alloy covering agent, master alloy are sell goods on the market; The refining treatment method adopts the ordinary method of the industry.
2, the thermal treatment and the treatment process thereof of the magnesiumalloy that provides of the embodiment of the invention:
Die casting in the diecast magnesium alloy that the embodiment of the invention provides can not heat-treated, and the cast member of other form can be heat-treated, and generally adopts the T4 solution treatment.The T4 solid solution treatment process is: cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, water temperature 20-80 ℃.
Receive fusion process to select the influence of some other inevitable factor in purity and the melting of raw material, the castingprocesses for use; The diecast magnesium alloy that the embodiment of the invention provides may contain unavoidable impurities; Like Zn, Cu, Be etc.; As long as said impurity does not cause obvious influence to the performance of magnesiumalloy; And total impurities is controlled at weight percent＜0.5% in the said magnesiumalloy finished product, in weight percent＜0.1% of single impurity in said magnesiumalloy finished product, exists trace impurity also to allow.
Embodiment 1
Prepare heat resistance magnesium alloy by above-mentioned technology one said step, foundry goods adopts die cast, and the weight percent of said magnesiumalloy consists of Al 1.5%, Mn 0.1%, Sm 0.0002%, Nb 0.0002%, Zr 0.001%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 80 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 2
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts semi-solid casting, and the weight percent of said magnesiumalloy consists of Al 25%, Mn 2%, Y 16%, Nb 4%, Zr 2%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 80 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 3
Prepare heat resistance magnesium alloy by above-mentioned technology three said steps; The said standard brand MgAlMn that in the preparation process, adds is that diecast magnesium alloy is AM60B; Foundry goods adopts Hpdc; The weight percent of heat resistance magnesium alloy consists of Al 6%, Mn 0.24%, Pr0.2%, Nb 1%, Zr 0.6%, and all the other are Mg; The corresponding standard brand diecast magnesium alloy that does not contain Nb is AM60B.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 4
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts low-pressure casting, and the weight percent of said magnesiumalloy consists of Al 1.6%, Mn 0.13%, Ho 0.1%, Nb 0.05%, Zr 0.2%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 50 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 5
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts precision casting, and the weight percent of said magnesiumalloy consists of Al 6.5%, Mn 0.7%, Yb 2%, Nb 1%, Zr 0.9%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 70 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 6
Prepare heat resistance magnesium alloy by above-mentioned technology one said step, foundry goods adopts sand mold casting, and the weight percent of said magnesiumalloy consists of Al 4.4%, Mn 0.26%, Gd 0.1%, Nb 0.05%, Zr 0.2%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 60 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 7
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts Hpdc, and the weight percent of said magnesiumalloy consists of Al 6.5%, Mn 0.6%, Gd 0.8%, Nb 0.6%, Zr 0.9%, and all the other are Mg.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 8
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts Hpdc, and the weight percent of said magnesiumalloy consists of Al 6.5%, Mn 0.6%, Gd0.4%, Nd 0.4%, Nb 0.6%, Zr 0.9%, and all the other are Mg.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 9
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts Hpdc, and the weight percent of said magnesiumalloy consists of Al 6.5%, Mn 0.6%, Ce 0.8%, Nb 0.6%, Zr 0.9%, and all the other are Mg.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 10
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts die cast, and the weight percent of said magnesiumalloy consists of Al 2%, Mn 0.2%, La 1.2%, Nb 0.8%, Zr 0.1%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 20 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 11
Prepare heat resistance magnesium alloy by above-mentioned technology one said step, foundry goods adopts sand mold casting, and the weight percent of said magnesiumalloy consists of Al 6%, Mn 0.5%, Tb 0.6%, Nb 0.4%, Zr 0.5%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 60 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 12
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts die cast, and the weight percent of said magnesiumalloy consists of Al 10%, Mn 0.1%, Dy 8%, Nb 2%, Zr 1.5%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 20 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 13
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts die cast, and the weight percent of said magnesiumalloy consists of Al 3%, Mn 0.65%, Er 1%, Nb 0.7%, Zr 0.8%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 60 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 14
Prepare heat resistance magnesium alloy by above-mentioned technology two said steps, foundry goods adopts die cast, and the weight percent of said magnesiumalloy consists of Al 5%, Mn 0.5%, Sc 0.5%, Nb 0.8%, Zr 0.4%, and all the other are Mg.
The thermal treatment of foundry goods (T4 solid solution treatment process): cast member is warming up to 400 ℃ in chamber type electric resistance furnace, is incubated 16 hours, shrend after cast member is come out of the stove, 40 ℃ of water temperatures.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
Embodiment 15
Prepare heat resistance magnesium alloy by above-mentioned technology one said step, foundry goods adopts Hpdc, and said magnesiumalloy weight percent consists of Al 6%, Mn 0.45%, Gd 0.4%, Nb 0.2%, Zr 0.6%, and all the other are Mg.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
The comparative example
Prepare heat resistance magnesium alloy by above-mentioned technology one said step, foundry goods adopts Hpdc, and said magnesiumalloy weight percent consists of Al 6%, Mn 0.45%, Gd 0.4%, Zr 0.6%, and all the other are Mg and unavoidable impurities.
The performance of the Mg alloy castings that present embodiment provides is referring to table 1.
More than the Mg alloy castings that provides of each embodiment can contain the impurity of trace, weight percent＜0.5% of said unavoidable impurities total amount in said magnesiumalloy finished product, weight percent＜0.1% of single impurity in said magnesiumalloy finished product.
The mechanical property of the Mg alloy castings that various embodiments of the present invention and comparative example provide is referring to table 1.
The mechanical property parameters table of the Mg alloy castings that each embodiment of table 1 provides
By shown in the table 1; The Mg alloy castings that the embodiment of the invention provides under 200 ℃ of high temperature tensile strength all greater than 180MPa; Being higher than MgAlMn such as AM60B far away is diecast magnesium alloy, has good heat-resistant, simultaneously referring to embodiment 15 and comparative example; The Mg alloy castings that the embodiment of the invention provides is compared with the Mg alloy castings that does not add Nb, has better resistance toheat; The tensile strength of embodiment 7,8 and 15 under 200 ℃ of high temperature is better than other embodiment, and the scope of embodiment 7,8 and 15 each component is in Al 4.4-6.5%, Mn 0.26-0.6%, Gd 0.1-0.8%, Nb 0.05-0.6%, Zr 0.2-0.9%; Through the contrast between the embodiment 7-9, can know that the RE that contains has the effect of Gd better; The Mg alloy castings that embodiment 15 provides tensile strength under 200 ℃ of high temperature is the highest, and the Mg alloy castings thermotolerance that embodiment 15 provides is the strongest.
The method of rolling alloy ingot bar of the present invention is pressed the pair rolling art breading and is got final product.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. heat resistance magnesium alloy; It is characterized in that; Said magnesiumalloy is made up of Mg, Al, Mn, rare earth, Nb, Zr, and its weight percent consists of Al 1.5-25%, Mn 0.1-2%, rare earth 0.0002-16%, Nb 0.0002-4%, Zr 0.001-2%, and all the other are Mg.
2. magnesiumalloy according to claim 1 is characterized in that, said rare earth is at least a among Gd, Y, Sc, Sm, Nd, Pr, Yb, La, Ce, Tb, Dy, Ho and the Er.
3. magnesiumalloy according to claim 1 and 2 is characterized in that, said rare earth is at least a among Gd or Gd and Y, Sc, Sm, Nd, Pr, Yb, La, Ce, Tb, Dy, Ho and the Er.
4. according to each described magnesiumalloy of claim 1-3, it is characterized in that its weight percent consists of Al 1.6-6.5%, Mn 0.13-0.7%, Gd 0.1-2%, Nb 0.05-1%, Zr 0.2-0.9%, all the other are Mg.
5. according to each described magnesiumalloy of claim 1-4, it is characterized in that its weight percent consists of Al 4.4-6.5%, Mn 0.26-0.6%, Gd 0.1-0.8%, Nb 0.05-0.6%, Zr 0.2-0.9%, all the other are Mg.
6. according to each described magnesiumalloy of claim 1-5, it is characterized in that its weight percent consists of Al 6%, Mn0.45%, Gd 0.4%, Nb 0.2%, Zr 0.6%, all the other are Mg.
7. magnesiumalloy according to claim 1 is characterized in that, said Nb adds in the said magnesiumalloy through the form of AlNb master alloy or NbAl master alloy.
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|---|---|---|---|
| CN201210107716.2A CN102618762B (en) | 2012-04-13 | 2012-04-13 | Heat-resisting magnesium alloy |
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|---|---|---|---|
| CN201210107716.2A CN102618762B (en) | 2012-04-13 | 2012-04-13 | Heat-resisting magnesium alloy |
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| CN102618762A true CN102618762A (en) | 2012-08-01 |
| CN102618762B CN102618762B (en) | 2014-10-29 |
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| CN (1) | CN102618762B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046871A (en) * | 2014-06-30 | 2014-09-17 | 中国科学院长春应用化学研究所 | Heat-resistant magnesium alloy and preparation method thereof |
| CN104152768A (en) * | 2014-09-05 | 2014-11-19 | 农彩丽 | Heat-resisting rare magnesium alloy and preparation method thereof |
| CN104498794A (en) * | 2014-12-15 | 2015-04-08 | 镁联科技（芜湖）有限公司 | High-temperature-resistant magnesium alloy, and preparation method and application thereof |
| CN104651641A (en) * | 2014-10-08 | 2015-05-27 | 张亚荟 | Method for optimizing magnesium alloy property by adding La and Sc |
| CN105256208A (en) * | 2015-10-09 | 2016-01-20 | 天长市兴宇铸造有限公司 | Boron nitride nanotube modifying Mg-Al-Mn magnesium alloy material for casting automobile parts and preparation method thereof |
| CN105568101A (en) * | 2016-01-15 | 2016-05-11 | 佛山市领卓科技有限公司 | High-strength magnalium alloy and preparation method thereof |
| CN107815577A (en) * | 2017-11-08 | 2018-03-20 | 广西超盛网络科技有限责任公司 | A kind of heat resistance magnesium alloy |
| CN111575564A (en) * | 2020-06-03 | 2020-08-25 | 唐山师范学院 | Heat-resistant rare earth magnesium alloy and preparation method and application thereof |
| CN113667873A (en) * | 2021-09-03 | 2021-11-19 | 中北大学 | Preparation method of high-strength and high-toughness scandium-containing heat-resistant magnesium-gadolinium alloy ingot |
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| JPH08134581A (en) * | 1994-11-14 | 1996-05-28 | Mitsui Mining & Smelting Co Ltd | Production of magnesium alloy |
| CN1276276A (en) * | 1999-06-08 | 2000-12-13 | 三井金属矿业株式会社 | Metal die device, die-casting method and die-cast articles |
| CN102230116A (en) * | 2011-06-23 | 2011-11-02 | 江汉大学 | High-hardness cast magnesium alloy |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08134581A (en) * | 1994-11-14 | 1996-05-28 | Mitsui Mining & Smelting Co Ltd | Production of magnesium alloy |
| CN1276276A (en) * | 1999-06-08 | 2000-12-13 | 三井金属矿业株式会社 | Metal die device, die-casting method and die-cast articles |
| CN102230116A (en) * | 2011-06-23 | 2011-11-02 | 江汉大学 | High-hardness cast magnesium alloy |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046871A (en) * | 2014-06-30 | 2014-09-17 | 中国科学院长春应用化学研究所 | Heat-resistant magnesium alloy and preparation method thereof |
| CN104152768A (en) * | 2014-09-05 | 2014-11-19 | 农彩丽 | Heat-resisting rare magnesium alloy and preparation method thereof |
| CN104152768B (en) * | 2014-09-05 | 2016-07-13 | 唐伟 | A kind of heat resisting magnesium-rare earth alloy and preparation method thereof |
| CN104651641A (en) * | 2014-10-08 | 2015-05-27 | 张亚荟 | Method for optimizing magnesium alloy property by adding La and Sc |
| CN104498794A (en) * | 2014-12-15 | 2015-04-08 | 镁联科技（芜湖）有限公司 | High-temperature-resistant magnesium alloy, and preparation method and application thereof |
| CN105256208A (en) * | 2015-10-09 | 2016-01-20 | 天长市兴宇铸造有限公司 | Boron nitride nanotube modifying Mg-Al-Mn magnesium alloy material for casting automobile parts and preparation method thereof |
| CN105568101A (en) * | 2016-01-15 | 2016-05-11 | 佛山市领卓科技有限公司 | High-strength magnalium alloy and preparation method thereof |
| CN105568101B (en) * | 2016-01-15 | 2018-05-18 | 安镁金属制品（深圳）有限公司 | A kind of magnesium alloy of high intensity and preparation method thereof |
| CN107815577A (en) * | 2017-11-08 | 2018-03-20 | 广西超盛网络科技有限责任公司 | A kind of heat resistance magnesium alloy |
| CN111575564A (en) * | 2020-06-03 | 2020-08-25 | 唐山师范学院 | Heat-resistant rare earth magnesium alloy and preparation method and application thereof |
| CN113667873A (en) * | 2021-09-03 | 2021-11-19 | 中北大学 | Preparation method of high-strength and high-toughness scandium-containing heat-resistant magnesium-gadolinium alloy ingot |
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