CN107419120B - A method of high-strength hypoeutectic Al-Si alloy is prepared using microalloying and fast solidification technology are compound - Google Patents

A method of high-strength hypoeutectic Al-Si alloy is prepared using microalloying and fast solidification technology are compound Download PDF

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Publication number
CN107419120B
CN107419120B CN201710695099.5A CN201710695099A CN107419120B CN 107419120 B CN107419120 B CN 107419120B CN 201710695099 A CN201710695099 A CN 201710695099A CN 107419120 B CN107419120 B CN 107419120B
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alloy
hypoeutectic
strength
aluminium
cast
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CN107419120A (en
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李玉坤
杜晓东
张雅
吴玉程
雷璇璇
葛海涛
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Hefei University of Technology
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/03Making alloys by melting using master alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent

Abstract

The invention discloses a kind of using the compound method for preparing high-strength hypoeutectic Al-Si alloy of microalloying and fast solidification technology, is that the intermediate alloy that will be prepared casts after melting and obtains the aluminium alloy cast ingot of required ingredient;By alloy cast ingot crushing washing;Cleaned alloy cast ingot is uniform using the induction melting furnace melting of inert gas shielding, it then injects in cold die cavity body and quickly solidifies obtained high-strength Al-Si casting wrought alloy.Compared with prior art, high-strength hypoeutectic Al-Si alloy even tissue made from the method for the present invention is tiny, and mechanical property is substantially better than conventional cast hypoeutectic Al-Si alloy, has certain plastic deformation ability concurrently, possesses good market application prospect.

Description

It is a kind of using microalloying and fast solidification technology is compound prepares high-strength hypoeutectic Al- The method of Si alloy
Technical field
High-strength hypoeutectic Al-Si alloy is prepared using microalloying and fast solidification technology are compound the present invention relates to a kind of Method belongs to metal material and preparation technical field.
Background technique
Al-Si alloy is good because of its good casting character, medium mechanical property, lower thermal expansion coefficient, wearability The system in products such as auto parts and components, aerospace and household electrical appliance is widely deployed with lower manufacturing cost In making, Al-Si alloy is that kind is most in current aluminium alloy, the maximum alloy material of dosage.
Al-Si alloy is used due to its good mobility usually as casting alloy.For hypoeutectic and eutectic Al- Si alloy, the lath-shaped common reciever formed in casting process seriously isolates aluminum substrate, so that alloy ductility, deformability are poor; For Hypereutectic Al-Si Alloy, the coarse primary crystal Si phase and lath-shaped common reciever generated in alloy graining process, the two Double action seriously affects alloy ductility and plastic deformation ability, and stress concentration is also easy to produce in loading process, is existed to matrix The effect of isolating so that Al-Si alloy deformation performance is poor, there are larger bottlenecks for comprehensive mechanical property.
Existing Al-Si alloy is difficult to take into account its mechanical property and deformability, cause Al-Si alloy development apply by Considerable restraint, so needing one kind new Al-Si alloy material and process to effectively improve the comprehensive of Al-Si alloy Energy.
Summary of the invention
In order to avoid above-mentioned existing deficiencies in the technology, the present invention is intended to provide it is a kind of using microalloying and The compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology.
The present invention controls Si constituent content, in conjunction with the compound of Mg, Cu, Sc, Zr element by reasonable design of alloy Microalloying and the combination process quickly solidified prepare the height with certain deformability and excellent comprehensive mechanical property Strong hypoeutectic Al-Si alloy.
The ingredient of high-strength hypoeutectic Al-Si alloy prepared by the present invention constitutes as follows by mass percentage:
Si 3~4wt.%, Mg 0.3~0.5wt.%, Cu 0.3~0.5wt.%, Zr 0.05~0.25wt.%, Sc 0.05~0.20wt.%, surplus are Al and inevitable impurity.
Each ingredient is preferably as follows by mass percentage:
Al 95.7wt.%, Si 3.0wt.%, Mg 0.45wt.%, Cu 0.45wt.%, Zr 0.20wt.%, Sc 0.20wt.%.
The present invention uses microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology, packet Include following steps:
Step 1: ingredient
Amount is weighed and is closed among pure Al, Al-Si intermediate alloy, Al-Mg intermediate alloy, Al-Cu of corresponding mass according to the proportion Gold, Al-Zr intermediate alloy and Al-Sc intermediate alloy;
Step 2: melting and casting prepares alloy cast ingot
2a, weighed pure Al, Al-Si intermediate alloy of step 1 is added in preheated crucible, preheating temperature 350 DEG C, 730 DEG C then are warming up to furnace, is all stood after fusing and keeps the temperature 25min;
2b, the weighed Al-Cu intermediate alloy of step 1, Al-Zr intermediate alloy are added in the alloy molten solution of 2a acquisition, It is all stood after fusing and in 730 DEG C of heat preservation 15min;
2c, the temperature of the 2b alloy molten solution obtained is down to 700 DEG C, is wrapped up and is added in the weighed Al-Sc of step 1 with aluminium foil Between alloy, Al-Mg intermediate alloy, all stirred after fusing, and in 700 DEG C of heat preservations standing 10min, keep its component diffusion uniform;
Refining agent C is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, aluminium alloy resulting after refining is melted Body is removed the gred after 700 DEG C of heat preservations stand 10~15min with Slag Tool, and the finally cast molding in rectangular metal mold obtains Alloy cast ingot;Refining agent C2Cl6Addition quality be 2c obtain alloy molten solution quality 1~1.5%;
Step 3: aluminium alloy cast ingot is broken, cleans
Small blocks, small blocks full-size≤10mm, then by broken aluminium are broken for the alloy cast ingot that step 2 obtains Alloy block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4: quickly solidification prepares high-strength hypoeutectic Al-Si alloy
Aluminium alloy block cleaned in step 3 is placed in bottom to have in round nozzle quartz test tube, it then will be quartzy Test tube is placed in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, aluminium Alloy block fusing simultaneously opens spray to cast switch when spray to cast pressure is 0.04MPa after mixing, utilizes inert gas flow and pressure Molten aluminium alloy is injected into metallic copper die cavity body by power difference, is 10 in cooling rate3~104Under conditions of K/S, system is quickly solidified Obtain high-strength hypoeutectic Al-Si alloy.
Compared with prior art, the beneficial effects of the present invention are embodied in:
1, the present invention uses microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology, The advantages of having combined both microalloying and fast solidification technology.On the one hand it is designed by reasonable alloy, control Si member The combined microalloying of cellulose content, Mg, Cu, Sc, Zr carrys out the tissue of modified alloy, improves the deformability of alloy;An other side Face combines the strong thinning microstructure of fast solidification technology, improves common reciever form, makes Elemental redistribution is more uniform to reduce segregation. Using the combination process of the two, tiny primary crystal α-Al tissue and nodularization and tiny eutectic Si group are obtained by its synergistic effect It knits, significantly improves the mechanical property of alloy, prepare with the high-strength of certain deformability and excellent comprehensive mechanical property Hypoeutectic Al-Si alloy.
2, the tensile strength range of high-strength hypoeutectic Al-Si alloy produced by the present invention is 290.8~354.1MPa, is extended Rate is 14.5%~20.9%, and being superior to the mechanical property of general Al-Si casting alloy, (A356 alloy T6 state tensile strength is general Not higher than 240MPa), the application field of Al-Si alloy is expanded, is particularly suitable for some special occasions to high-strength Al-Si alloy The demand of material.
3, alloy preparation method is simple in the present invention, and equipment cost is cheap, and cost control is more advantageous, and it is big to be conducive to the later period The industrialized production of batch.
Specific embodiment
Come that the invention will be further described below with reference to specific embodiment, those skilled in the art of the present technique should can be with Understand, embodiment is only used for the scope of the claims that is schematically illustrate, and cannot limiting of the invention.
Its source is not particularly limited in aluminium intermediate alloy raw material used in the present invention, it is buying on the market or according to this The preparation of conventional method known to the technical staff of field.
The ingredient of high-strength hypoeutectic Al-Si alloy prepared by the present invention constitutes as follows by mass percentage:
Si 3~4wt.%, Mg 0.3~0.5wt.%, Cu 0.3~0.5wt.%, Zr 0.05~0.25wt.%, Sc 0.05~0.20wt.%, surplus are Al and inevitable impurity.
The present invention uses microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology, packet Include following steps:
Step 1: ingredient
Amount is weighed and is closed among pure Al, Al-Si intermediate alloy, Al-Mg intermediate alloy, Al-Cu of corresponding mass according to the proportion Gold, Al-Zr intermediate alloy and Al-Sc intermediate alloy;
Step 2: melting and casting prepares alloy cast ingot
2a, weighed pure Al, Al-Si intermediate alloy of step 1 is added in preheated crucible, preheating temperature 350 DEG C, 730 DEG C then are warming up to furnace, is all stood after fusing and keeps the temperature 25min;
2b, the weighed Al-Cu intermediate alloy of step 1, Al-Zr intermediate alloy are added in the alloy molten solution of 2a acquisition, It is all stood after fusing and in 730 DEG C of heat preservation 15min;
2c, the temperature of the 2b alloy molten solution obtained is down to 700 DEG C, is wrapped up and is added in the weighed Al-Sc of step 1 with aluminium foil Between alloy, Al-Mg intermediate alloy, all stirred after fusing, and in 700 DEG C of heat preservations standing 10min, keep its component diffusion uniform;
Refining agent C is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, aluminium alloy resulting after refining is melted Body is removed the gred after 700 DEG C of heat preservations stand 10~15min with Slag Tool, and the finally cast molding in rectangular metal mold obtains Alloy cast ingot;Refining agent C2Cl6Addition quality be 2c obtain alloy molten solution quality 1~1.5%;
Step 3: aluminium alloy cast ingot is broken, cleans
Small blocks, small blocks full-size≤10mm, then by broken aluminium are broken for the alloy cast ingot that step 2 obtains Alloy block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4: quickly solidification prepares high-strength hypoeutectic Al-Si alloy
Aluminium alloy block cleaned in step 3 is placed in bottom to have in round nozzle quartz test tube, it then will be quartzy Test tube is placed in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, aluminium Alloy block fusing simultaneously opens spray to cast switch when spray to cast pressure is 0.04MPa after mixing, utilizes inert gas flow and pressure Molten aluminium alloy is injected into metallic copper die cavity body by power difference, is 10 in cooling rate3~104Under conditions of K/S, system is quickly solidified Obtain high-strength hypoeutectic Al-Si alloy.
Below with reference to the specific preparation parameter of each embodiment in table 1, the invention will be further described.
The experiment parameter of 1 embodiment 1-7 of table
Embodiment 1:
Microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology are used in the present embodiment It is as follows:
Step 1: ingredient
According to the quality of 95.85%Al, 3.0%Si, 0.45%Mg, 0.45%Cu, 0.20%Zr and 0.05%Sc in table 1 Percentage weighs 764.3g fine aluminium (purity 99.99%), 139.3gAl-21.54%Si intermediate alloy, 9gAl-50.38% Mg intermediate alloy, 11.3gAl-39.97%Cu intermediate alloy, 51.3gAl-3.9%Zr intermediate alloy and 24.8gAl-2.02% Sc intermediate alloy, ingredient gross mass are 1000g;
Step 2: melting and casting prepares alloy cast ingot
2a, weighed pure Al, Al-Si intermediate alloy of step 1 is added in preheated crucible, preheating temperature 350 DEG C, 730 DEG C then are warming up to furnace, is all stood after fusing and keeps the temperature 25min;
2b, the weighed Al-Cu intermediate alloy of step 1, Al-Zr intermediate alloy are added to the alloy molten solution obtained in 2a In, it is stood after all melting and in 730 DEG C of heat preservation 15min;
2c, the temperature of the 2b alloy molten solution obtained is down to 700 DEG C, is wrapped up and is added in the weighed Al-Sc of step 1 with aluminium foil Between alloy, Al-Mg intermediate alloy, all stirred after fusing, and in 700 DEG C of heat preservations standing 10min, keep its component diffusion uniform;
The refining agent C of alloy molten solution quality 1~1.5% is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, Aluminium alloy melt resulting after refining is removed the gred after 700 DEG C of heat preservations stand 10~15min with Slag Tool, finally in rectangle gold Belong to cast molding in mold, obtains alloy cast ingot;
Step 3: aluminium alloy cast ingot is broken, cleans
Small blocks are broken for the aluminium alloy cast ingot that step 2 obtains, small blocks full-size is less than or equal to 10mm, then will Broken aluminium alloy block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4: quickly high-strength hypoeutectic Al-Si alloy is prepared in solidification
Aluminium alloy block cleaned in step 3 is placed in bottom to have in round nozzle quartz test tube, it then will be quartzy Test tube is placed in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, block Body fusing simultaneously opens spray to cast switch when spray to cast pressure is 0.04MPa after mixing, will using inert gas flow and pressure difference Molten aluminium alloy is injected into metallic copper die cavity body, is 10 in cooling rate3~104Under conditions of K/S, is quickly solidified and be made high-strength Hypoeutectic Al-Si alloy.
Performance evaluation is carried out to sample made from the present embodiment:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 290.8MPa, prolongs Stretching rate is 14.5%.
Embodiment 2:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 2:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 308.1MPa, prolongs Stretching rate is 15.6%.
Embodiment 3:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 3:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 315.9MPa, prolongs Stretching rate is 16.7%.
Embodiment 4:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 4:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 324.5MPa, prolongs Stretching rate is 17.9%.
Embodiment 5:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 5:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 337.4MPa, prolongs Stretching rate is 18.4%.
Embodiment 6:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 6:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 345.7MPa, prolongs Stretching rate is 19.2%.
Embodiment 7:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 7:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 354.1MPa, prolongs Stretching rate is 20.9%.
Embodiment 8:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 8:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 344.3MPa, prolongs Stretching rate is 18.4%.
Embodiment 9:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 9:
It uses the tensile strength of " 50KN SANS CMT-5105 electronic universal tester " measurement sample for 332.7MPa, prolongs Stretching rate is 17.1%.
The tensile strength range of high-strength hypoeutectic Al-Si alloy produced by the present invention is 290.8~354.1MPa, elongation percentage It is 14%~20%, being superior to the mechanical property of general Al-Si casting alloy, (A356 alloy T6 state tensile strength is generally not more than 240MPa), the application field for expanding Al-Si alloy is particularly suitable for some special occasions to high-strength Al-Si alloy material Demand.And alloy preparation method is simple in the present invention, and equipment cost is cheap, and cost control is more advantageous, and it is big to be conducive to the later period The industrialized production of batch.
The above-mentioned description to embodiment is understood for the ease of those skilled in the art and using invention.It is ripe Various equivalent modifications can also be made or replace by knowing those skilled in the art on the premise of not violating the inventive spirit of the present invention It changes, and applies the general principles described here to other examples without having to go through creative labor.Therefore, of the invention Creation is not limited to the specific embodiments, and those skilled in the art's announcement according to the present invention does not depart from scope of the invention institute The equivalent variation or replacement made are all included in the scope defined by the claims of the present application.

Claims (6)

1. a kind of using the compound method for preparing high-strength hypoeutectic Al-Si alloy of microalloying and fast solidification technology, feature It is to include the following steps:
Step 1: ingredient
According to the proportion amount weigh pure Al, Al-Si intermediate alloy of corresponding mass, Al-Mg intermediate alloy, Al-Cu intermediate alloy, Al-Zr intermediate alloy and Al-Sc intermediate alloy;
Step 2: melting and casting prepares alloy cast ingot
2a, weighed pure Al, Al-Si intermediate alloy of step 1 is added in preheated crucible, is then warming up to furnace It 730 DEG C, is all stood after fusing and keeps the temperature 25min;
2b, the weighed Al-Cu intermediate alloy of step 1, Al-Zr intermediate alloy are added in the alloy molten solution of 2a acquisition, all It is stood after fusing and in 730 DEG C of heat preservation 15min;
2c, the temperature of the 2b alloy molten solution obtained is down to 700 DEG C, is wrapped up being added among the weighed Al-Sc of step 1 with aluminium foil and is closed Gold, Al-Mg intermediate alloy all stir after fusing, and stand 10min in 700 DEG C of heat preservations, keep its component diffusion uniform;
Refining agent C is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, aluminium alloy melt resulting after refining is existed 700 DEG C of heat preservations are removed the gred after standing 10~15min with Slag Tool, and the finally cast molding in rectangular metal mold obtains alloy Ingot casting;
Step 3: aluminium alloy cast ingot is broken, cleans
Small blocks, small blocks full-size≤10mm, then by broken aluminium alloy are broken for the alloy cast ingot that step 2 obtains Block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4: quickly solidification prepares high-strength hypoeutectic Al-Si alloy
Aluminium alloy block cleaned in step 3 is placed in bottom to have in round nozzle quartz test tube, then by quartz test tube It is placed in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, aluminium alloy Mass melts simultaneously open spray to cast switch after mixing, and molten aluminium alloy is injected into metal using inert gas flow and pressure difference In copper mold cavity, is quickly solidified and high-strength hypoeutectic Al-Si alloy is made;
The ingredient of the high-strength hypoeutectic Al-Si alloy constitutes as follows by mass percentage: Si 3~4wt.%, Mg 0.3~ 0.5wt.%, Cu 0.3~0.5wt.%, Zr 0.05~0.20wt.% of 0.05~0.25wt.%, Sc, surplus is for Al and not Evitable impurity.
2. preparation method according to claim 1, it is characterised in that:
The ingredient of the high-strength hypoeutectic Al-Si alloy constitutes as follows by mass percentage: Al 95.7wt.%, Si 3.0wt.%, Mg 0.45wt.%, Cu 0.45wt.%, Zr 0.20wt.%, Sc 0.20wt.%.
3. preparation method according to claim 1, it is characterised in that:
In step 2a, the preheating temperature of crucible is 350 DEG C.
4. preparation method according to claim 1, it is characterised in that:
In step 2d, refining agent C2Cl6Addition quality be 2c obtain alloy molten solution quality 1~1.5%.
5. preparation method according to claim 1, it is characterised in that:
In step 4, spray to cast pressure is 0.04MPa.
6. preparation method according to claim 1, it is characterised in that:
In step 4, the cooling rate quickly solidified is 103~104K/S。
CN201710695099.5A 2017-08-15 2017-08-15 A method of high-strength hypoeutectic Al-Si alloy is prepared using microalloying and fast solidification technology are compound Active CN107419120B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394931A (en) * 1992-01-13 1995-03-07 Honda Giken Kogyo Kabushiki Kaisha Aluminum-based alloy cast product and process for producing the same
CN104480355A (en) * 2014-12-04 2015-04-01 绥阳县耐环铝业有限公司 Silicon-aluminum alloy and preparation method thereof
CN104805340A (en) * 2015-05-21 2015-07-29 广西友合铝材有限公司 Rare earth aluminium-magnesium-silicon alloy material and preparation method thereof
CN106521258A (en) * 2016-12-28 2017-03-22 南京理工大学 High-strength silicon aluminum alloy and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394931A (en) * 1992-01-13 1995-03-07 Honda Giken Kogyo Kabushiki Kaisha Aluminum-based alloy cast product and process for producing the same
CN104480355A (en) * 2014-12-04 2015-04-01 绥阳县耐环铝业有限公司 Silicon-aluminum alloy and preparation method thereof
CN104805340A (en) * 2015-05-21 2015-07-29 广西友合铝材有限公司 Rare earth aluminium-magnesium-silicon alloy material and preparation method thereof
CN106521258A (en) * 2016-12-28 2017-03-22 南京理工大学 High-strength silicon aluminum alloy and preparation method thereof

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