CA2729251A1 - High strength casting aluminum alloy material - Google Patents
High strength casting aluminum alloy material Download PDFInfo
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- CA2729251A1 CA2729251A1 CA2729251A CA2729251A CA2729251A1 CA 2729251 A1 CA2729251 A1 CA 2729251A1 CA 2729251 A CA2729251 A CA 2729251A CA 2729251 A CA2729251 A CA 2729251A CA 2729251 A1 CA2729251 A1 CA 2729251A1
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- Prior art keywords
- aluminum alloy
- rare earth
- alloy material
- casting aluminum
- strength
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 34
- 239000000956 alloy Substances 0.000 title claims abstract description 30
- 238000005266 casting Methods 0.000 title claims abstract description 22
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 25
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 17
- 229910045601 alloy Inorganic materials 0.000 abstract description 14
- 229910052796 boron Inorganic materials 0.000 abstract description 4
- 229910052719 titanium Inorganic materials 0.000 abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 abstract description 4
- 229910052793 cadmium Inorganic materials 0.000 abstract description 3
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 238000007670 refining Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000005275 alloying Methods 0.000 description 5
- 229910018182 Al—Cu Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000011573 trace mineral Substances 0.000 description 4
- 235000013619 trace mineral Nutrition 0.000 description 4
- 229910000737 Duralumin Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010970 precious metal Substances 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 2
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 2
- 239000011565 manganese chloride Substances 0.000 description 2
- 229940099607 manganese chloride Drugs 0.000 description 2
- 235000002867 manganese chloride Nutrition 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010120 permanent mold casting Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910017566 Cu-Mn Inorganic materials 0.000 description 1
- 229910017871 Cu—Mn Inorganic materials 0.000 description 1
- 241001024304 Mino Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
Abstract
A high strength casting aluminum alloy material comprises (in weight %) Cu 2.0-6.0%, Mn 0.05-1.0%, Ti 0.01-0.5%,Cr0.01-0.2%, Cd 0.01-0.4%, Zr 0.01-0.25%, B 0.005-0.04%, rare earth 0.05-0.3%, and balance aluminum and trace impurities. The alloy has reduced cost.
Description
HIGH STRENGTH CASTING ALUMINUM ALLOY MATERIAL
Technical Field The invention relates to an aluminum alloy material, in particular to a high strength casting aluminum alloy material.
Background The aluminum alloy as a younger metal material was not put into industrial use until early in the twentieth century. During the World War II, the aluminum material was mainly used to manufacture military aircraft. In the post-war years, the sharp drop in the demand for the aluminum material in the military industry led the aluminum industry to turn to the development of the aluminum alloy for civil use, so as to extend the applicable range thereof from aviation industry to various fields of national economy such as construction industry, container packaging industry, transportation industry, power industry, electronic industry, mechanical manufacturing industry, petrochemical industry and so on and apply the aluminum alloy to daily life. Nowadays, owing to high consumption and wide range, the aluminum material ranks second next to steel in metal materials. The aluminum alloy can be dated back to 1906 when Alfred Wilm Duralumin discovered the age hardening by chance in Berlin and then the Duralumin was developed and applied to the structural parts of aircraft. Various Al-Cu alloys were developed based on the Duralumin. Early in the twentieth century, aluminum alloy A-U5GT
((W)Si<0.05%, (W)Fe<0.10% and tensile strength (T4) > 275MPa according to SAE J452-1989), which has been listed in France's national standards and aerospace standards, was developed and put into use and production; aluminum alloys 201.0 (1968) and 206.0 (1967) according to the Aluminum Association were based on the A-U5GT, and aluminum alloy 204.0 (1974) was equivalent to A-U5GT; aluminum alloy 201.0 (AICu4AgMgMn) containing Ag (0.4%
to 1.0%) and having high cost is commercially named KO-1 (with the tensile strength (T7) thereof being 415MPa and the coefficient of elongation thereof being 3%
according to ASTM B26/B26(M)-1999) and protected by US patent; BAR 10 is equivalent to ZL204 for domestic use in the aspect of major element components but its trace elements is under secret and it is only used in the military field or other fields having high requirements.
ZL204A, ZL205A and other grades of casting aluminum alloy are developed in China, wherein the tensile strength of the ZL204A (65>4%) under the T5 state is 440Mpa, however, the ZL204A has the poorest fluidity and hot-cracking resistance among the Al-Cu based casting alloys; the tensile strengths of ZL205A under the T5 state and T6 state are 435MPa and 465MPa respectively according to the technical standard (GB 1173-86), and the tensile strength of ZL205A (T6) is 470MPa according to the standard (GB/F1173-1995), so the ZL205A is one of casting aluminum alloy materials having highest strength worldwide at present.
The plasticity of ZL205A (T5) is good, and the coefficient of elongation thereof reaches 7%, so ZL205A has been widely applied in the field of aerospace, however, ZL205A contains precious metal V as an element and is high in cost; meanwhile, is based on refined aluminum or high-purity aluminum as a base metal, thus increasing the cost and limiting the material supply. Additionally, ZL209, which is made by adding RE to ZL205A, is still subject to the limitation of high cost due to the addition of the element V.
The aluminum alloy developed by LV Jie, BIAM (Beijing Institute of Aeronautical Materials) is similar to ZL205A in the aspect of main components, however, the aluminum alloy contains 0.1% to 0.25% of V in the trace elements, has a tensile strength of 385MPa to 405MPa and the coefficient of elongation reaching 19% to 23%, and it is disclosed only in document study, the tensile strength of the aluminum alloy is lower, and the raw materials include high-cost element V.
In conclusion, the existing research on the field of high-strength casting aluminum alloy at home and aboard has the following problems: the strength of the aluminum alloy is not high enough, more particularly, few of casting aluminum alloys has the tensile strength higher than 450MPa; precious metals and rare elements (Ag, V and Be) are added in an amount higher than 1 %o, and high-impurity aluminum is used as the base metals, thus increasing the cost, limiting the material source and making the aluminum alloy difficult to be popularized and put into civil use; the problem of the ratio between strength and plasticity is yet to be solved, and the contradiction between the strength and castability of the alloy is serious; and the fatigue life is short, and the resistance to stress corrosion is poor.
Summary of the Present Invention The invention intends to solve the technical problems that the existing high-strength casting aluminum alloy has the disadvantages of high formula cost, low strength, poor castability, short fatigue life and poor resistance to stress corrosion and to develop a high-strength, high-toughness and high-corrosion-resistance casting aluminum alloy material for both military and civil uses by optimizing the common formula and the processes of casting and purifying.
In order to solve the problems, the invention provides a high-strength casting aluminum alloy material comprising the following components by weight percentage:
2.0% to 6.0% of Cu, 0.05% to 1.0% of Mn, 0.01% to 0.5% of Ti, 0.01% to 0.2% of Cr, 0.01 % to 0.4% of Cd, 0.01 % to 0.25% of Zr, 0.005% to 0.04% of B, 0.05% to 0.3% of rare earth element and the balancing amount of Al and trace impurities.
The rare earth element may be Pr, Ce, La or mixed rare earth elements RE.
The total content of various rare earth elements in the mixed rare earth elements RE is not lower than 98% (based on the total weight of the mixed rare earth elements RE).
The mixed rare earth elements RE may contain 40wt% to 50wt% of Ce (based on the total weight of the mixed rare earth elements RE).
The method for preparing the high-strength casting aluminum alloy material comprises the following steps:
(1) adding a proper amount of aluminum ingots or molten aluminum liquid to a melting furnace, heating until the aluminum ingots or molten aluminum liquid is melted down, and holding at 660 to 850 DEG C;
(2) adding the alloying elements of Cu and Mn by formula ratio and evenly stirring, and then adding trace elements Ti, Cr, Cd, Zr, B, rare earth element Pr, Ce, La or rare earth RE and evenly stirring;
Technical Field The invention relates to an aluminum alloy material, in particular to a high strength casting aluminum alloy material.
Background The aluminum alloy as a younger metal material was not put into industrial use until early in the twentieth century. During the World War II, the aluminum material was mainly used to manufacture military aircraft. In the post-war years, the sharp drop in the demand for the aluminum material in the military industry led the aluminum industry to turn to the development of the aluminum alloy for civil use, so as to extend the applicable range thereof from aviation industry to various fields of national economy such as construction industry, container packaging industry, transportation industry, power industry, electronic industry, mechanical manufacturing industry, petrochemical industry and so on and apply the aluminum alloy to daily life. Nowadays, owing to high consumption and wide range, the aluminum material ranks second next to steel in metal materials. The aluminum alloy can be dated back to 1906 when Alfred Wilm Duralumin discovered the age hardening by chance in Berlin and then the Duralumin was developed and applied to the structural parts of aircraft. Various Al-Cu alloys were developed based on the Duralumin. Early in the twentieth century, aluminum alloy A-U5GT
((W)Si<0.05%, (W)Fe<0.10% and tensile strength (T4) > 275MPa according to SAE J452-1989), which has been listed in France's national standards and aerospace standards, was developed and put into use and production; aluminum alloys 201.0 (1968) and 206.0 (1967) according to the Aluminum Association were based on the A-U5GT, and aluminum alloy 204.0 (1974) was equivalent to A-U5GT; aluminum alloy 201.0 (AICu4AgMgMn) containing Ag (0.4%
to 1.0%) and having high cost is commercially named KO-1 (with the tensile strength (T7) thereof being 415MPa and the coefficient of elongation thereof being 3%
according to ASTM B26/B26(M)-1999) and protected by US patent; BAR 10 is equivalent to ZL204 for domestic use in the aspect of major element components but its trace elements is under secret and it is only used in the military field or other fields having high requirements.
ZL204A, ZL205A and other grades of casting aluminum alloy are developed in China, wherein the tensile strength of the ZL204A (65>4%) under the T5 state is 440Mpa, however, the ZL204A has the poorest fluidity and hot-cracking resistance among the Al-Cu based casting alloys; the tensile strengths of ZL205A under the T5 state and T6 state are 435MPa and 465MPa respectively according to the technical standard (GB 1173-86), and the tensile strength of ZL205A (T6) is 470MPa according to the standard (GB/F1173-1995), so the ZL205A is one of casting aluminum alloy materials having highest strength worldwide at present.
The plasticity of ZL205A (T5) is good, and the coefficient of elongation thereof reaches 7%, so ZL205A has been widely applied in the field of aerospace, however, ZL205A contains precious metal V as an element and is high in cost; meanwhile, is based on refined aluminum or high-purity aluminum as a base metal, thus increasing the cost and limiting the material supply. Additionally, ZL209, which is made by adding RE to ZL205A, is still subject to the limitation of high cost due to the addition of the element V.
The aluminum alloy developed by LV Jie, BIAM (Beijing Institute of Aeronautical Materials) is similar to ZL205A in the aspect of main components, however, the aluminum alloy contains 0.1% to 0.25% of V in the trace elements, has a tensile strength of 385MPa to 405MPa and the coefficient of elongation reaching 19% to 23%, and it is disclosed only in document study, the tensile strength of the aluminum alloy is lower, and the raw materials include high-cost element V.
In conclusion, the existing research on the field of high-strength casting aluminum alloy at home and aboard has the following problems: the strength of the aluminum alloy is not high enough, more particularly, few of casting aluminum alloys has the tensile strength higher than 450MPa; precious metals and rare elements (Ag, V and Be) are added in an amount higher than 1 %o, and high-impurity aluminum is used as the base metals, thus increasing the cost, limiting the material source and making the aluminum alloy difficult to be popularized and put into civil use; the problem of the ratio between strength and plasticity is yet to be solved, and the contradiction between the strength and castability of the alloy is serious; and the fatigue life is short, and the resistance to stress corrosion is poor.
Summary of the Present Invention The invention intends to solve the technical problems that the existing high-strength casting aluminum alloy has the disadvantages of high formula cost, low strength, poor castability, short fatigue life and poor resistance to stress corrosion and to develop a high-strength, high-toughness and high-corrosion-resistance casting aluminum alloy material for both military and civil uses by optimizing the common formula and the processes of casting and purifying.
In order to solve the problems, the invention provides a high-strength casting aluminum alloy material comprising the following components by weight percentage:
2.0% to 6.0% of Cu, 0.05% to 1.0% of Mn, 0.01% to 0.5% of Ti, 0.01% to 0.2% of Cr, 0.01 % to 0.4% of Cd, 0.01 % to 0.25% of Zr, 0.005% to 0.04% of B, 0.05% to 0.3% of rare earth element and the balancing amount of Al and trace impurities.
The rare earth element may be Pr, Ce, La or mixed rare earth elements RE.
The total content of various rare earth elements in the mixed rare earth elements RE is not lower than 98% (based on the total weight of the mixed rare earth elements RE).
The mixed rare earth elements RE may contain 40wt% to 50wt% of Ce (based on the total weight of the mixed rare earth elements RE).
The method for preparing the high-strength casting aluminum alloy material comprises the following steps:
(1) adding a proper amount of aluminum ingots or molten aluminum liquid to a melting furnace, heating until the aluminum ingots or molten aluminum liquid is melted down, and holding at 660 to 850 DEG C;
(2) adding the alloying elements of Cu and Mn by formula ratio and evenly stirring, and then adding trace elements Ti, Cr, Cd, Zr, B, rare earth element Pr, Ce, La or rare earth RE and evenly stirring;
(3) then, refining the alloy melt in the melting furnace, adding a refining agent (chlorine gas, hexachloroethane, manganese chloride and the like may be selected as the refining agent according to different working conditions) to the alloy melt and evenly stirring, wherein the melt should be refined in a closed environment as possible, in order to prevent the melt from water absorption and melting loss;
(4) pouring the alloy liquid out of the melting furnace, and carrying out the online treatment of filtering, degassing and deslagging;
(5) permanent mold casting; and (6) finally, carrying out solid-solution precipitation strengthening thermal treatment at lower than 620 DEG C within 72 hours.
Compared with the prior art, the invention has the following advantages:
(1) Advanced designs of alloying and micro-alloying. By determining the reasonable design of micro-alloying elements (Ti, Cr, B, Zr, Pr, Ce, La and mixed rare earth elements) and composition range thereof based on the main components of Al-Cu-Mn, the invention can achieve the effect of substituting for precious metals, such as Ag and V and reduce the formula cost by 5% to 10%.
(2) Advanced techniques for melting and impurity removal. The invention can effectively break through the technical bottleneck in impurity removal and ensure that the tensile strength of the material is higher than 450MPa and the coefficient of elongation is higher than 5% at the same time.
(3) The invention can maintain the high strength of the material and obviously increase the plasticity thereof at the same time.
According to the novelty research concluded by the novelty research center of the Southwest Information Center, MOST (Ministry of Science and Technology), the development and industrialization of the novel high-strength casting aluminum alloy 1, in which the parameters of the element components can be achieved by using the project, are not disclosed in documents or reports at home and abroad. Therefore, the disputes and conflicts can be avoided in the intellectual property and research achievement of the project.
The characterization of the composition and performance parameters of the novel materials: the comparison of mechanical properties between some Al-Cu alloys and the high-strength casting aluminum alloy material based on national standards is listed in the following table.
Comparison of mechanical properties between Al-Cu alloys and high-strength casting aluminum alloy material 1 based on national standards Alloy Grade Alloy Code Thermal Tensile Elongation after Treatment Strength Fracture 6c(%) Conditions Ub/MPa ZAlCu5Mn ZL201 T5 335 4 ZAlCu5MnA ZL201A T5 390 8 ZA1Cu10 ZL202 T6 163 -ZAlCu4 ZL203 T5 225 3 ZA1Cu5MnCdA ZL204A T5 440 4 ZA1Cu5MnCdVA ZL205A T6 470 3 ZAIRE5Cu3Si2 ZL207 Ti 175 -AlCu4AgMgMn (US) 201.0 T7 415 3 AlCu4MgTi (US) 206.0 T4 275 8 Unknown components (RUS) BAR 10 Maximum Worst 4 (corr.
except Al and Cu T4-T7 500, minimum MINo ), 320 Optimum 12 (corr. MAX6e ) Novel < 620 AlCuMnTiCrCdZrBRE high-toughness DEG C 450 5 1 < 72h Detailed Description Example: the high-strength casting aluminum alloy material comprises the following components by weight percentage: 2.0% to 6.0% of Cu, 0.05% to 1.0%
of Mn, 0.01% to 0.5% of Ti, 0.01% to 0.2% of Cr, 0.01% to 0.4% of Cd, 0.01% to 0.25%
of Zr, 0.005% to 0.04% of B, 0.05% to 0.3% of Pr, Ce, La or mixed rare earth elements RE and the balancing amount of Al and trace impurities.
The total content of various rare earth elements in the mixed rare earth elements RE is not lower than 98%, and the content of Ce in the mixed rare earth elements is 45%
by weight percentage. (Because the ionic radius and oxidation state of the rare earth elements are similar to those of other elements, the rare earth elements generally coexist with other elements in minerals.) (1) adding a proper amount of aluminum ingots or molten aluminum liquid to a melting furnace, heating until the aluminum ingots or molten aluminum liquid is melted down, and holding at 660 to 850 DEG C.
(2) adding the alloying elements of Cu and Mn by formula ratio and evenly stirring, and then adding trace elements Ti, Cr, Cd, Zr, B, rare earth elements Pr, Ce, La or RE and evenly stirring.
(3) then, refining the alloy melt in the melting furnace, adding a refining agent (chlorine gas, hexachloroethane, manganese chloride and the like may be selected as the refining agent according to different working conditions) to the alloy melt and evenly stirring, wherein the melt should be refined in a closed environment as possible, in order to prevent the melt from water absorption and melting loss.
(4) pouring the alloy liquid out of the melting furnace, and carrying out the online treatment of filtering, degassing and deslagging.
(5) permanent mold casting.
(6) finally, carrying out solid-solution precipitation strengthening thermal treatment at lower than 620 DEG C within 72 hours.
Compared with the prior art, the invention has the following advantages:
(1) Advanced designs of alloying and micro-alloying. By determining the reasonable design of micro-alloying elements (Ti, Cr, B, Zr, Pr, Ce, La and mixed rare earth elements) and composition range thereof based on the main components of Al-Cu-Mn, the invention can achieve the effect of substituting for precious metals, such as Ag and V and reduce the formula cost by 5% to 10%.
(2) Advanced techniques for melting and impurity removal. The invention can effectively break through the technical bottleneck in impurity removal and ensure that the tensile strength of the material is higher than 450MPa and the coefficient of elongation is higher than 5% at the same time.
(3) The invention can maintain the high strength of the material and obviously increase the plasticity thereof at the same time.
According to the novelty research concluded by the novelty research center of the Southwest Information Center, MOST (Ministry of Science and Technology), the development and industrialization of the novel high-strength casting aluminum alloy 1, in which the parameters of the element components can be achieved by using the project, are not disclosed in documents or reports at home and abroad. Therefore, the disputes and conflicts can be avoided in the intellectual property and research achievement of the project.
The characterization of the composition and performance parameters of the novel materials: the comparison of mechanical properties between some Al-Cu alloys and the high-strength casting aluminum alloy material based on national standards is listed in the following table.
Comparison of mechanical properties between Al-Cu alloys and high-strength casting aluminum alloy material 1 based on national standards Alloy Grade Alloy Code Thermal Tensile Elongation after Treatment Strength Fracture 6c(%) Conditions Ub/MPa ZAlCu5Mn ZL201 T5 335 4 ZAlCu5MnA ZL201A T5 390 8 ZA1Cu10 ZL202 T6 163 -ZAlCu4 ZL203 T5 225 3 ZA1Cu5MnCdA ZL204A T5 440 4 ZA1Cu5MnCdVA ZL205A T6 470 3 ZAIRE5Cu3Si2 ZL207 Ti 175 -AlCu4AgMgMn (US) 201.0 T7 415 3 AlCu4MgTi (US) 206.0 T4 275 8 Unknown components (RUS) BAR 10 Maximum Worst 4 (corr.
except Al and Cu T4-T7 500, minimum MINo ), 320 Optimum 12 (corr. MAX6e ) Novel < 620 AlCuMnTiCrCdZrBRE high-toughness DEG C 450 5 1 < 72h Detailed Description Example: the high-strength casting aluminum alloy material comprises the following components by weight percentage: 2.0% to 6.0% of Cu, 0.05% to 1.0%
of Mn, 0.01% to 0.5% of Ti, 0.01% to 0.2% of Cr, 0.01% to 0.4% of Cd, 0.01% to 0.25%
of Zr, 0.005% to 0.04% of B, 0.05% to 0.3% of Pr, Ce, La or mixed rare earth elements RE and the balancing amount of Al and trace impurities.
The total content of various rare earth elements in the mixed rare earth elements RE is not lower than 98%, and the content of Ce in the mixed rare earth elements is 45%
by weight percentage. (Because the ionic radius and oxidation state of the rare earth elements are similar to those of other elements, the rare earth elements generally coexist with other elements in minerals.) (1) adding a proper amount of aluminum ingots or molten aluminum liquid to a melting furnace, heating until the aluminum ingots or molten aluminum liquid is melted down, and holding at 660 to 850 DEG C.
(2) adding the alloying elements of Cu and Mn by formula ratio and evenly stirring, and then adding trace elements Ti, Cr, Cd, Zr, B, rare earth elements Pr, Ce, La or RE and evenly stirring.
(3) then, refining the alloy melt in the melting furnace, adding a refining agent (chlorine gas, hexachloroethane, manganese chloride and the like may be selected as the refining agent according to different working conditions) to the alloy melt and evenly stirring, wherein the melt should be refined in a closed environment as possible, in order to prevent the melt from water absorption and melting loss.
(4) pouring the alloy liquid out of the melting furnace, and carrying out the online treatment of filtering, degassing and deslagging.
(5) permanent mold casting.
(6) finally, carrying out solid-solution precipitation strengthening thermal treatment at lower than 620 DEG C within 72 hours.
Claims (4)
1. A high-strength casting aluminum alloy material, comprising the following components by weight percentage: 2.0% to 6.0% of Cu, 0.05% to 1.0% of Mn, 0.01% to 0.5%
of Ti, 0.01% to 0.2% of Cr, 0.01% to 0.4% of Cd, 0.01% to 0.25% of Zr, 0.005% to 0.04% of B, 0.05% to 0.3% of rare earth element and the balancing amount of Al and trace impurities.
of Ti, 0.01% to 0.2% of Cr, 0.01% to 0.4% of Cd, 0.01% to 0.25% of Zr, 0.005% to 0.04% of B, 0.05% to 0.3% of rare earth element and the balancing amount of Al and trace impurities.
2. The high-strength casting aluminum alloy material according to Claim 1, wherein the rare earth element is Pr, Ce, La or mixed rare earth elements RE.
3. The high-strength casting aluminum alloy material according to Claim 1, wherein the total content of various rare earth elements in the mixed rare earth elements RE is not lower than 98wt%.
4. The high-strength casting aluminum alloy material according to Claim 2 or Claim 3, wherein the content of Ce in the mixed rare earth elements RE is 40wt% to 50wt%.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810302668.6 | 2008-07-09 | ||
| CN200810302670.3 | 2008-07-09 | ||
| CN2008103026686A CN101363092B (en) | 2008-07-09 | 2008-07-09 | High-strength cast aluminium alloy material |
| CN200810302671.8 | 2008-07-09 | ||
| CN2008103026690A CN101363093B (en) | 2008-07-09 | 2008-07-09 | High-strength cast aluminium alloy material |
| CN2008103026703A CN101319287B (en) | 2008-07-09 | 2008-07-09 | High-strength cast aluminium alloy material |
| CN2008103026718A CN101363094B (en) | 2008-07-09 | 2008-07-09 | High-strength cast aluminium alloy material |
| CN200810302669.0 | 2008-07-09 | ||
| PCT/CN2009/072603 WO2010003349A1 (en) | 2008-07-09 | 2009-07-02 | High strength casting aluminium alloy material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2729251A1 true CA2729251A1 (en) | 2010-01-14 |
| CA2729251C CA2729251C (en) | 2014-04-15 |
Family
ID=41506693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2729251A Expired - Fee Related CA2729251C (en) | 2008-07-09 | 2009-07-02 | High strength casting aluminum alloy material |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110176957A1 (en) |
| EP (1) | EP2298947B1 (en) |
| JP (1) | JP2011526967A (en) |
| CA (1) | CA2729251C (en) |
| WO (1) | WO2010003349A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9347558B2 (en) | 2010-08-25 | 2016-05-24 | Spirit Aerosystems, Inc. | Wrought and cast aluminum alloy with improved resistance to mechanical property degradation |
| US10266933B2 (en) | 2012-08-27 | 2019-04-23 | Spirit Aerosystems, Inc. | Aluminum-copper alloys with improved strength |
| CN103436743B (en) * | 2013-07-16 | 2015-08-26 | 安徽省天马泵阀集团有限公司 | Pump cover high-strength cast aluminium alloy material and manufacture method thereof |
| GB201713005D0 (en) | 2017-08-14 | 2017-09-27 | Univ Brunel | The alloy and manufacturing method of Al-Si-Mg castings for improved mechanical performance |
| CN112951474A (en) * | 2021-02-26 | 2021-06-11 | 安徽阿尔泰克铝业材料科技有限公司 | Aluminum alloy conductor for aerospace cable |
| CN114277293B (en) * | 2021-12-30 | 2022-07-26 | 山西汤荣机械制造股份有限公司 | Lightweight composite brake disc and preparation method thereof |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681906A (en) * | 1950-06-02 | 1952-10-29 | Fulmer Res Inst Ltd | Improvements relating to aluminium base alloys |
| JPS4947602B1 (en) * | 1970-03-20 | 1974-12-17 | ||
| JPS5818418B2 (en) * | 1977-06-24 | 1983-04-13 | 株式会社神戸製鋼所 | Manufacturing method of high-strength aluminum alloy for casting with excellent alumite properties |
| JPS585980B2 (en) * | 1977-08-04 | 1983-02-02 | 株式会社神戸製鋼所 | High-strength aluminum alloy with excellent formability |
| CN86107139A (en) * | 1986-10-23 | 1988-05-04 | 北京有色金属加工厂 | Sparkless casting aluminium alloy |
| JP2799642B2 (en) * | 1992-02-07 | 1998-09-21 | トヨタ自動車株式会社 | High strength aluminum alloy |
| US7323068B2 (en) * | 2002-08-20 | 2008-01-29 | Aleris Aluminum Koblenz Gmbh | High damage tolerant Al-Cu alloy |
| US7494552B2 (en) * | 2002-08-20 | 2009-02-24 | Aleris Aluminum Koblenz Gmbh | Al-Cu alloy with high toughness |
| CN100410406C (en) * | 2006-08-14 | 2008-08-13 | 吉林大学 | High strength high toughness casting aluminum alloy |
| CN101191167B (en) * | 2006-11-23 | 2010-08-25 | 比亚迪股份有限公司 | Magnesium alloy containing rare earth element and preparation method thereof |
| CN101363093B (en) * | 2008-07-09 | 2011-04-20 | 贵州铝厂 | High-strength cast aluminium alloy material |
| CN101319287B (en) * | 2008-07-09 | 2011-03-16 | 贵州大学 | High-strength cast aluminium alloy material |
| CN101363092B (en) * | 2008-07-09 | 2011-01-12 | 贵州大学 | High-strength cast aluminium alloy material |
| CN101363094B (en) * | 2008-07-09 | 2011-03-30 | 贵州铝厂 | High-strength cast aluminium alloy material |
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2009
- 2009-07-02 EP EP09793824.5A patent/EP2298947B1/en not_active Not-in-force
- 2009-07-02 WO PCT/CN2009/072603 patent/WO2010003349A1/en active Application Filing
- 2009-07-02 US US13/001,782 patent/US20110176957A1/en not_active Abandoned
- 2009-07-02 JP JP2011516953A patent/JP2011526967A/en active Pending
- 2009-07-02 CA CA2729251A patent/CA2729251C/en not_active Expired - Fee Related
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| CA2729251C (en) | 2014-04-15 |
| WO2010003349A1 (en) | 2010-01-14 |
| EP2298947A4 (en) | 2011-08-03 |
| JP2011526967A (en) | 2011-10-20 |
| EP2298947B1 (en) | 2015-01-28 |
| US20110176957A1 (en) | 2011-07-21 |
| EP2298947A1 (en) | 2011-03-23 |
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