WO2013041584A2 - Improved aluminum casting alloys containing vanadium - Google Patents
Improved aluminum casting alloys containing vanadium Download PDFInfo
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- WO2013041584A2 WO2013041584A2 PCT/EP2012/068465 EP2012068465W WO2013041584A2 WO 2013041584 A2 WO2013041584 A2 WO 2013041584A2 EP 2012068465 W EP2012068465 W EP 2012068465W WO 2013041584 A2 WO2013041584 A2 WO 2013041584A2
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- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
Definitions
- Aluminum casting alloys are useful in a variety of applications. However, improving one property of an aluminum casting alloy without degrading another property is elusive. For example, it is difficult to increase the strength of an alloy without decreasing the ductility of an alloy.
- the present patent application relates to improved aluminum casting alloys (also known as foundry alloys), and methods for producing the same. Specifically, the present patent application relates to aluminum casting alloys having vanadium and, optionally, iron. Generally, the new aluminum casting alloys including vanadium, and optionally iron, achieve an improved combination of properties.
- the new aluminum casting alloys generally include from about 0.01 to 0.15 wt. % vanadium (V). In one embodiment, the new aluminum casting alloy may include from about 0.03 to 0.12 wt. % vanadium. In another embodiment, the new aluminum casting alloy may include from about 0.05 to 0.10 wt. % vanadium.
- V vanadium
- the new aluminum casting alloy may realize an improved combination of strength and elongation, among other properties.
- the aluminum casting alloy includes not greater than 0.10 wt. % iron. In one embodiment, the aluminum casting alloy includes not greater than 0.08 wt. % iron. In another embodiment, the aluminum casting alloy includes not greater than 0.05 wt. % iron. In some embodiments, iron is included in the alloy. In these embodiments, the aluminum casting alloy includes at least 0.01 wt. % iron. In one embodiment, the aluminum casting alloy includes 0.01 - 0.10 wt. % iron. In another embodiment, the aluminum casting alloy includes 0.01 - 0.08 wt. % iron. [006] In one approach, the aluminum casting alloy is a silicon-based casting alloy including the above-described amounts of vanadium, optionally with iron.
- the silicon- based casting alloys may be any of the 3xx series of casting alloys known to those skilled in the art.
- the silicon-based casting alloy includes from 4.0 to 10.0 wt. % silicon, and silicon is the predominate alloying element of the casting alloy, except for aluminum.
- the silicon-based casting alloys may optionally include secondary element, tertiary elements, and other elements, defined below.
- the silicon- based casting alloy includes from about 6.0 to 9.0 wt. % silicon.
- the silicon-based casting alloy includes from about 6.5 to 8.5 wt. % silicon.
- the silicon-based aluminum alloy may include one or more secondary elements. These secondary elements are selected from the group consisting of magnesium, copper, zinc, nickel, and combinations thereof. The secondary elements may be included in the alloy for various purposes, such as for strengthening (e.g., solid solution, precipitate and constituent strengthening).
- the silicon-based casting alloy includes magnesium.
- the silicon-based casting alloy includes magnesium, and in the range of from about 0.05 to 1.5 wt. % magnesium. In other embodiments, the silicon-based casting alloy includes magnesium as an impurity, i.e., not greater than 0.04 wt. % magnesium.
- the silicon-based casting alloy includes copper.
- the silicon-based casting alloy includes copper, and in the range of from about 0.40 to 5.0 wt. % copper.
- the silicon-based casting alloy includes copper as an impurity, i.e., not greater than 0.39 wt. % copper.
- the silicon-based casting alloy includes zinc.
- the silicon-based casting alloy includes zinc, and in the range of from about 0.25 to 5.0 wt. % zinc.
- the silicon-based casting alloy includes zinc as an impurity, i.e., not greater than 0.24 wt. % zinc.
- the silicon-based casting alloy includes nickel.
- the silicon-based casting alloy includes nickel, and in the range of from about 0.50 to 3.0 wt. % nickel.
- the silicon-based casting alloy includes nickel as an impurity, i.e., not greater than 0.49 wt. % nickel.
- the silicon-based aluminum alloy may include tertiary elements, such as manganese, chromium, titanium, strontium, sodium, antimony, and combinations thereof.
- tertiary elements such as manganese, chromium, titanium, strontium, sodium, antimony, and combinations thereof.
- manganese and/or chromium may be included in the silicon-based aluminum alloy to prevent die soldering for high pressure die casting.
- Titanium may be included in the silicon-based aluminum alloy for grain refining.
- Strontium, sodium and/or antimony may be added for silicon particle modification.
- the silicon-based aluminum alloy generally includes not greater than about 1.0 wt. % each of the tertiary elements.
- the alloy When a tertiary element is included, the alloy generally includes at least about 0.01 wt. % of that tertiary element (e.g., 0.01 - 1.0 wt. % Mn).
- the silicon-based aluminum alloy includes 0.01 to 0.8 wt. % manganese.
- the silicon-based aluminum alloy includes 0.01 to 0.5 wt. % chromium.
- the silicon-based aluminum alloy includes 0.01 to 0.25 wt. % titanium.
- the silicon-based aluminum alloy includes 0.001 to 0.1 wt. % strontium.
- the silicon-based aluminum alloy includes 0.001 to 0.1 wt. % sodium.
- the silicon-based aluminum alloy includes 0.001 to 0.1 wt. % antimony.
- the silicon-based aluminum alloy may include TiB 2 and/or TiC as a grain refiner.
- the silicon-based aluminum alloy includes 0.001 to 0.03 wt. % boron.
- the silicon-based aluminum alloy includes 0.001 to 0.03 wt. % carbon.
- the silicon-based aluminum alloy may be substantially free of other elements (e.g., deoxidizers, impurities).
- Other elements means any other element of the periodic table that may be included in the silicon-based aluminum alloy, except for aluminum, the silicon, the vanadium, the iron, the secondary elements, and the tertiary elements, described above.
- the phrase "substantially free” means that the aluminum alloy body contains not more than 0.25 wt. % each of any element of the other elements, with the total combined amount of these other elements not exceeding 0.50 wt. %. In one embodiment, each one of these other elements, individually, does not exceed about 0.10 wt.
- each one of these other elements individually, does not exceed about 0.05 wt. % in the silicon-based aluminum alloy, and the total combined amount of these other elements does not exceed about 0.15 wt. % in the silicon- based aluminum alloy.
- each one of these other elements individually, does not exceed about 0.03 wt. % in the silicon-based aluminum alloy, and the total combined amount of these other elements does not exceed about 0.10 wt. % in the silicon-based aluminum alloy.
- the silicon-based aluminum alloy may be used in various types of foundry casting processes, such as sand mold casting, investment casting (ceramic shell mold), lost foam casting, permanent mold casting, high pressure die casting, squeeze casting, and semi-solid casting, to name a few.
- the Secondary Dendrite Arm Spacing (SDAS) of the silicon-based aluminum alloy produced by various casting methods may range from 1 micrometer (e.g., with a fast solidification rate) to 100 micrometers (e.g., with a slow solidification rate). SDAS may be determined, for instance, using standard metallographic techniques and the "intercept method".
- FIG. 1 is a graph illustrating the performance of various silicon-based aluminum casting alloys.
- FIG. 2 is a graph illustrating the performance of various silicon-based aluminum casting alloys.
- FIGS. 3a-3b are pictures illustrating the micro structure of various silicon-based aluminum casting alloys.
- the properties of the alloys have been measured (i.e., in the F temper) for each alloy in the same way.
- the results are illustrated in FIG. 1.
- the given average of the measured data include tensile yield strength data (0R p o. 2 ) and ultimate tensile strength data (0R m ) given in MPa and Brinell scale hardness data HBW5/250 (0Harte).
- average elongation data are given, where 0A (lower graph) refers to average elongation based on machine measured data, and where 0 ⁇ (upper graph) refers to average elongation based on manually measured data. Alloy 1 with 0.08 wt. % V and 0.08 wt.
- % Fe has both better strength and elongation than Alloys 2-3 achieving an ultimate tensile strength of about 143 MPa, and an elongation of about 4.2-4.4%. By comparison, Alloys 2-3 achieve only about 123-130 MPa in ultimate tensile strength, and with much lower elongation (2.6-2.8 %).
- Alloy 1 with 0.08 wt. % vanadium and 0.08 wt. % iron outperforms Alloys 2-3 in terms of strength and elongation, achieving both higher strength and elongation than Alloys 2-3.
- Alloy 1 contains smaller ⁇ -AlFeSi particles and less/smaller ⁇ -AlFeMgSi particles.
- the porosity of Alloys 1-3 is also measured (by image analysis), the results of which are provided in Table 2, below. Alloys 1 and 3 with 0.08 wt. % V have reduced porosity. It is believed that both factors, i.e., less/smaller particles and less porosity, may contribute to the higher strength and elongation properties.
- Table 2 Porosity of Silicon-based casting alloy (all porosity values in percent)
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Abstract
Improved aluminum casting alloys having vanadium are disclosed. The new alloys generally include from 4.0 to 10.0 wt. % Si, from 0.01 to 0.15 wt. % V, and up to 0.10 wt. % Fe, among other elements. The improved aluminum casting alloys may realize, for example, improved strength and/or elongation properties.
Description
IMPROVED ALUMINUM CASTING ALLOYS CONTAINING VANADIUM
CROSS REFERENCE TO RELATED APPLICATION
[001] This patent application claims priority to U.S. Provisional Patent Application No. 61/536,451, entitled "IMPROVED ALUMINUM CASTING ALLOYS CONTAINING VANADIUM", filed September 19, 2011, and which is incorporated herein by reference in its entirety.
BACKGROUND
[002] Aluminum casting alloys are useful in a variety of applications. However, improving one property of an aluminum casting alloy without degrading another property is elusive. For example, it is difficult to increase the strength of an alloy without decreasing the ductility of an alloy.
SUMMARY OF THE DISCLOSURE
[003] Broadly, the present patent application relates to improved aluminum casting alloys (also known as foundry alloys), and methods for producing the same. Specifically, the present patent application relates to aluminum casting alloys having vanadium and, optionally, iron. Generally, the new aluminum casting alloys including vanadium, and optionally iron, achieve an improved combination of properties.
[004] The new aluminum casting alloys generally include from about 0.01 to 0.15 wt. % vanadium (V). In one embodiment, the new aluminum casting alloy may include from about 0.03 to 0.12 wt. % vanadium. In another embodiment, the new aluminum casting alloy may include from about 0.05 to 0.10 wt. % vanadium. By maintaining vanadium within the aluminum casting alloy in the above-described amounts, optionally with iron, an improved combination of properties may be realized. For example, the aluminum casting alloy may realize an improved combination of strength and elongation, among other properties.
[005] In one approach, the aluminum casting alloy includes not greater than 0.10 wt. % iron. In one embodiment, the aluminum casting alloy includes not greater than 0.08 wt. % iron. In another embodiment, the aluminum casting alloy includes not greater than 0.05 wt. % iron. In some embodiments, iron is included in the alloy. In these embodiments, the aluminum casting alloy includes at least 0.01 wt. % iron. In one embodiment, the aluminum casting alloy includes 0.01 - 0.10 wt. % iron. In another embodiment, the aluminum casting alloy includes 0.01 - 0.08 wt. % iron.
[006] In one approach, the aluminum casting alloy is a silicon-based casting alloy including the above-described amounts of vanadium, optionally with iron. The silicon- based casting alloys may be any of the 3xx series of casting alloys known to those skilled in the art. In this approach, the silicon-based casting alloy includes from 4.0 to 10.0 wt. % silicon, and silicon is the predominate alloying element of the casting alloy, except for aluminum. The silicon-based casting alloys may optionally include secondary element, tertiary elements, and other elements, defined below. In one embodiment, the silicon- based casting alloy includes from about 6.0 to 9.0 wt. % silicon. In one embodiment, the silicon-based casting alloy includes from about 6.5 to 8.5 wt. % silicon.
[007] The silicon-based aluminum alloy may include one or more secondary elements. These secondary elements are selected from the group consisting of magnesium, copper, zinc, nickel, and combinations thereof. The secondary elements may be included in the alloy for various purposes, such as for strengthening (e.g., solid solution, precipitate and constituent strengthening). In one approach, the silicon-based casting alloy includes magnesium. In one embodiment, the silicon-based casting alloy includes magnesium, and in the range of from about 0.05 to 1.5 wt. % magnesium. In other embodiments, the silicon-based casting alloy includes magnesium as an impurity, i.e., not greater than 0.04 wt. % magnesium.
[008] In one approach, the silicon-based casting alloy includes copper. In one embodiment, the silicon-based casting alloy includes copper, and in the range of from about 0.40 to 5.0 wt. % copper. In other embodiments, the silicon-based casting alloy includes copper as an impurity, i.e., not greater than 0.39 wt. % copper.
[009] In one approach, the silicon-based casting alloy includes zinc. In one embodiment, the silicon-based casting alloy includes zinc, and in the range of from about 0.25 to 5.0 wt. % zinc. In other embodiments, the silicon-based casting alloy includes zinc as an impurity, i.e., not greater than 0.24 wt. % zinc.
[0010] In one approach, the silicon-based casting alloy includes nickel. In one embodiment, the silicon-based casting alloy includes nickel, and in the range of from about 0.50 to 3.0 wt. % nickel. In other embodiments, the silicon-based casting alloy includes nickel as an impurity, i.e., not greater than 0.49 wt. % nickel.
[0011] The silicon-based aluminum alloy may include tertiary elements, such as manganese, chromium, titanium, strontium, sodium, antimony, and combinations thereof. One or more of these tertiary elements may be added to the alloy for various purposes.
For example, manganese and/or chromium may be included in the silicon-based aluminum alloy to prevent die soldering for high pressure die casting. Titanium may be included in the silicon-based aluminum alloy for grain refining. Strontium, sodium and/or antimony may be added for silicon particle modification. In these embodiments, the silicon-based aluminum alloy generally includes not greater than about 1.0 wt. % each of the tertiary elements. When a tertiary element is included, the alloy generally includes at least about 0.01 wt. % of that tertiary element (e.g., 0.01 - 1.0 wt. % Mn). In one embodiment, the silicon-based aluminum alloy includes 0.01 to 0.8 wt. % manganese. In one embodiment, the silicon-based aluminum alloy includes 0.01 to 0.5 wt. % chromium. In one embodiment, the silicon-based aluminum alloy includes 0.01 to 0.25 wt. % titanium. In one embodiment, the silicon-based aluminum alloy includes 0.001 to 0.1 wt. % strontium. In one embodiment, the silicon-based aluminum alloy includes 0.001 to 0.1 wt. % sodium. In one embodiment, the silicon-based aluminum alloy includes 0.001 to 0.1 wt. % antimony.
[0012] In addition or as an alternative to titanium grain refining, the silicon-based aluminum alloy may include TiB2 and/or TiC as a grain refiner. In one embodiment, the silicon-based aluminum alloy includes 0.001 to 0.03 wt. % boron. In one embodiment, the silicon-based aluminum alloy includes 0.001 to 0.03 wt. % carbon.
[0013] The silicon-based aluminum alloy may be substantially free of other elements (e.g., deoxidizers, impurities). Other elements means any other element of the periodic table that may be included in the silicon-based aluminum alloy, except for aluminum, the silicon, the vanadium, the iron, the secondary elements, and the tertiary elements, described above. In the context of this paragraph the phrase "substantially free" means that the aluminum alloy body contains not more than 0.25 wt. % each of any element of the other elements, with the total combined amount of these other elements not exceeding 0.50 wt. %. In one embodiment, each one of these other elements, individually, does not exceed about 0.10 wt. % in the silicon-based aluminum alloy, and the total combined amount of these other elements does not exceed about 0.35 wt. , in the silicon-based aluminum alloy. In another embodiment, each one of these other elements, individually, does not exceed about 0.05 wt. % in the silicon-based aluminum alloy, and the total combined amount of these other elements does not exceed about 0.15 wt. % in the silicon- based aluminum alloy. In another embodiment, each one of these other elements, individually, does not exceed about 0.03 wt. % in the silicon-based aluminum alloy, and
the total combined amount of these other elements does not exceed about 0.10 wt. % in the silicon-based aluminum alloy.
[0014] The silicon-based aluminum alloy may be used in various types of foundry casting processes, such as sand mold casting, investment casting (ceramic shell mold), lost foam casting, permanent mold casting, high pressure die casting, squeeze casting, and semi-solid casting, to name a few. The Secondary Dendrite Arm Spacing (SDAS) of the silicon-based aluminum alloy produced by various casting methods may range from 1 micrometer (e.g., with a fast solidification rate) to 100 micrometers (e.g., with a slow solidification rate). SDAS may be determined, for instance, using standard metallographic techniques and the "intercept method". The intercept method involves (1) drawing a straight line parallel to the primary dendrite,(2) counting the number of dendrite arm intercepted, (3) using the following equation to calculate a specific SDAS: SDAS= line length / number of arms / magnification; and (4) repeating several times (at least 5) and averaging the results to obtain an overall SDAS.
[0015] These and other aspects, advantages, and novel features of this new technology are set forth in part in the description that follows and will become apparent to those skilled in the art upon examination of the following description and figures, or may be learned by practicing one or more embodiments of the technology provided for by the patent application.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is a graph illustrating the performance of various silicon-based aluminum casting alloys.
[0017] FIG. 2 is a graph illustrating the performance of various silicon-based aluminum casting alloys.
[0018] FIGS. 3a-3b are pictures illustrating the micro structure of various silicon-based aluminum casting alloys.
DETAILED DESCRIPTION
Example 1
[0019] Several silicon-based aluminum casting alloys having the compositions listed in Table 1, below, are cast via sand mold casting.
Table 1 - Composition of Silicon-based casting alloy (all values in weight percent)
After casting, the properties of the alloys have been measured (i.e., in the F temper) for each alloy in the same way. The results are illustrated in FIG. 1. The given average of the measured data include tensile yield strength data (0Rpo.2) and ultimate tensile strength data (0Rm) given in MPa and Brinell scale hardness data HBW5/250 (0Harte). Moreover, average elongation data are given, where 0A (lower graph) refers to average elongation based on machine measured data, and where 0ΑΙ (upper graph) refers to average elongation based on manually measured data. Alloy 1 with 0.08 wt. % V and 0.08 wt. % Fe has both better strength and elongation than Alloys 2-3 achieving an ultimate tensile strength of about 143 MPa, and an elongation of about 4.2-4.4%. By comparison, Alloys 2-3 achieve only about 123-130 MPa in ultimate tensile strength, and with much lower elongation (2.6-2.8 %).
[0020] These alloys (Variante 1 - 3) are also aged to a T6 temper. The same mechanical characteristics (0Rpo.2, 0Rm, 0Harte, 0A, 0ΑΙ) as that depicted in Fig. 1 have been determined. The results of the measurements are illustrated in FIG. 2 (one with water quench after a 5h solution heat treatment at 540 °C, followed by a two step artificial ageing for 3h at 140° and 6h at 160°C, and one with air cooling after a 3.5h solution heat treatment at 540 °C, followed by a one step artificial ageing for 5h at 185°C).
[0021] Again, Alloy 1 with 0.08 wt. % vanadium and 0.08 wt. % iron outperforms Alloys 2-3 in terms of strength and elongation, achieving both higher strength and elongation than Alloys 2-3.
[0022] The microstructures of Alloys 1-3 are illustrated in FIGS. 3a-3b, below.
[0023] Alloy 1 contains smaller β-AlFeSi particles and less/smaller π-AlFeMgSi particles. The porosity of Alloys 1-3 is also measured (by image analysis), the results of which are provided in Table 2, below. Alloys 1 and 3 with 0.08 wt. % V have reduced porosity. It is believed that both factors, i.e., less/smaller particles and less porosity, may contribute to the higher strength and elongation properties.
Table 2 - Porosity of Silicon-based casting alloy (all porosity values in percent)
[0024] While various embodiments of the present disclosure have been described in detail, it is apparent that modifications and adaptations of those embodiments will occur to those skilled in the art. However, it is to be expressly understood that such modifications and adaptations are within the spirit and scope of the present disclosure.
Claims
1. An aluminum casting alloy comprising:
from 4.0 to 10.0 wt. % silicon (Si);
from 0.01 to 0.15 wt. % vanadium (V);
up to 0.10 wt. % iron (Fe);
optionally one or more of the following secondary elements:
from 0.05 to 1.5 wt. % magnesium (Mg);
from 0.40 to 5.0 wt. % copper (Cu);
from 0.25 to 5.0 wt. % zinc (Zn); and
from 0.50 to 3.0 wt. % nickel (Ni);
optionally 0.01 - 1.0 wt. % each of one or more of the following tertiary elements: manganese (Mn), chromium (Cr), titanium (Ti), strontium (Sr), sodium (Na), and antimony (Sb);
optionally from 0.001 to 0.03 wt. % boron (B);
optionally from 0.001 to 0.03 wt. % carbon (C);
not more than 0.25 wt. % each of any other element, with the total combined amount of these other elements not exceeding 0.50 wt. ;
the balance being aluminum and impurities.
2. The aluminum casting alloy of claim 1, comprising from 0.03 to 0.12 wt. % V.
3. The aluminum casting alloy of claim 1, comprising from 0.05 to 0.10 wt. % V.
4. The aluminum casting alloy of any of claims 1-3, comprising not greater than 0.08 wt. % iron.
5. The aluminum casting alloy of any of claims 1-3, comprising not greater than 0.05 wt. % iron.
6. The aluminum casting alloy of any of claims 1-5, comprising at least 0.01 wt. % iron.
7. The aluminum casting alloy of any of claims 1-6, comprising from 6.0 to 9.0 wt. % silicon.
8. The aluminum casting alloy of any of claims 1-6, comprising from 6.5 to 8.5 wt. % silicon.
9. The aluminum casting alloy of any of claims 1-8, comprising from 0.01 to 0.8 wt. % manganese.
10. The aluminum casting alloy of any of claims 1-9, comprising from 0.01 to 0.5 wt. % chromium.
11. The aluminum casting alloy of any of claims 1-10, comprising from 0.01 to 0.25 wt. % titanium.
12. The aluminum casting alloy of any of claims 1-11, comprising from 0.001 to 0.1 wt. % strontium.
13. The aluminum casting alloy of any of claims 1-12, comprising from 0.001 to 0.1 wt. % sodium.
14. The aluminum casting alloy of any of claims 1-13, comprising from 0.001 to 0.1 wt. % antimony.
15. The aluminum casting alloy of any of claims 1-14, wherein the alloy comprises not more than 0.10 wt. % each of the other elements, with the total combined amount of these other elements not exceeding 0.35 wt. %.
16. The aluminum casting alloy of any of claims 1-14, wherein the alloy comprises not more than 0.05 wt. % each of the other elements, with the total combined amount of these other elements not exceeding 0.15 wt. %.
17. The aluminum casting alloy of any of claims 1-14, wherein the alloy comprises not more than 0.03 wt. % each of the other elements, with the total combined amount of these other elements not exceeding 0.10 wt. %.
18. The aluminum casting alloy of any of claims 1-17, wherein the alloy realizes a Secondary Dendrite Arm Spacing (SDAS) of from 1 micrometer to 100 micrometers.
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EP12762575.4A EP2758557B1 (en) | 2011-09-19 | 2012-09-19 | Improved aluminum casting alloys containing vanadium |
CN201280043338.4A CN103842534A (en) | 2011-09-19 | 2012-09-19 | Improved aluminum casting alloys containing vanadium |
US14/196,093 US20140234160A1 (en) | 2011-09-19 | 2014-03-04 | Aluminum casting alloys containing vanadium |
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- 2012-09-19 EP EP12762575.4A patent/EP2758557B1/en not_active Revoked
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2014
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015135253A1 (en) * | 2014-03-13 | 2015-09-17 | 中兴通讯股份有限公司 | Al-si alloy and manufacturing method thereof |
CN104532079A (en) * | 2014-12-22 | 2015-04-22 | 青岛麦特瑞欧新材料技术有限公司 | Aluminum alloy and preparation method thereof |
CN104561683A (en) * | 2014-12-22 | 2015-04-29 | 青岛麦特瑞欧新材料技术有限公司 | Aluminum alloy for high-pressure casting and preparation method thereof |
CN104561682A (en) * | 2014-12-22 | 2015-04-29 | 青岛麦特瑞欧新材料技术有限公司 | Aluminum alloy for preparing thin plates |
DE102021114484A1 (en) | 2021-06-07 | 2022-12-08 | Audi Aktiengesellschaft | Aluminum cast alloy |
Also Published As
Publication number | Publication date |
---|---|
US20140234160A1 (en) | 2014-08-21 |
EP2758557A2 (en) | 2014-07-30 |
CN103842534A (en) | 2014-06-04 |
WO2013041584A3 (en) | 2013-06-27 |
EP2758557B1 (en) | 2015-11-04 |
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