EP4194575A1 - Addition of calcium and vanadium to almg alloys - Google Patents

Addition of calcium and vanadium to almg alloys Download PDF

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Publication number
EP4194575A1
EP4194575A1 EP21213909.1A EP21213909A EP4194575A1 EP 4194575 A1 EP4194575 A1 EP 4194575A1 EP 21213909 A EP21213909 A EP 21213909A EP 4194575 A1 EP4194575 A1 EP 4194575A1
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EP
European Patent Office
Prior art keywords
alloy
aluminium
added
molten state
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP21213909.1A
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German (de)
French (fr)
Inventor
Stuart Wiesner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aluminium Rheinfelden Alloys GmbH
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Aluminium Rheinfelden Alloys GmbH
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Filing date
Publication date
Application filed by Aluminium Rheinfelden Alloys GmbH filed Critical Aluminium Rheinfelden Alloys GmbH
Priority to EP21213909.1A priority Critical patent/EP4194575A1/en
Priority to CN202280080777.6A priority patent/CN118541498A/en
Priority to PCT/EP2022/084184 priority patent/WO2023104652A1/en
Priority to CA3240203A priority patent/CA3240203A1/en
Publication of EP4194575A1 publication Critical patent/EP4194575A1/en
Pending legal-status Critical Current

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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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys

Definitions

  • the present invention relates to a process for producing an aluminium-magnesium alloy and to an alloy produced by the process.
  • Be beryllium
  • beryllium is mentioned for reducing the oxidation tendency of AlMg melts.
  • EP3159422 A1 is added to an AlMg 5 Si 2 Mn alloy.
  • One object is to provide a process which provides for the addition of an element or a combination of elements which cause a catalytic reaction and thus promote the formation of a passivation layer on the aluminium melt. By forming the passivation layer, further oxidation of the molten metal and thus undesirable formation of dross is prevented.
  • the process according to the invention is directed towards the production of an aluminium-magnesium alloy with a content of at least 1 % Mg, preferably 1 - 7% Mg, more preferably at least 2% Mg, preferably 2 - 7% Mg.
  • a content of at least 1 % Mg preferably 1 - 7% Mg, more preferably at least 2% Mg, preferably 2 - 7% Mg.
  • 0.01 - 2% calcium (Ca) and 0.01 - 0.3% V are added in the molten state.
  • 0.05% - 1 % Ca is added to the alloy in the molten state.
  • Ca and V are added as aluminium master alloy during the production of the aluminium-magnesium alloy, preferably the first master alloy contains 10% Ca and 90% Al and the second master alloy contains 10% V and 90% Al.
  • Ca and V are added at a melt temperature of 680 - 750°C.
  • At least one of the following elements is added to the alloy in the molten state: Iron (Fe), Manganese (Mn), Strontium (Sr), Phosphorus (P), Nickel (Ni), Zinc (Zn), Copper (Cu), Silicon (Si), Titanium (Ti), Chromium (Cr), Molybdenum (Mo), Zirconium (Zr), Hafnium (Hf), Gallium (Ga), Boron (B).
  • the following elements are added to the alloy in the molten state in addition to Al, Mg, Ca and V, either individually or as a master alloy:
  • this defines a molten metal with a temperature of preferably 680 to 750°C, in which Ca and V can dissolve completely and all other alloying elements are completely dissolved.
  • the alloy produced by the process according to the invention is a die-cast alloy.
  • An Al-Mg alloy produced by the process according to the invention consists of the following elements:
  • an element or element group selected from the group consisting of Cr, Ni, Mo, Zr, Hf, Ga and B, and the balance Al and unavoidable impurities.
  • AlMg alloy which is to be protected against oxidation, is left in ambient air at a defined temperature for a certain time in an open crucible. Then the formation of the oxide layer is determined.
  • a visible oxide layer appears after a few days, the strength of which is significantly higher than in Al alloys without a Mg content.
  • the following 15 test trials were carried out at the Tech Center Rheinfelden.
  • the alloys were produced in an open, electrically heated crucible furnace.
  • high-pressure die casting trials were carried out and the melt was left in ambient air.
  • the casting tests were carried out on a 400 to die casting cell and the produced test plates had the dimensions 260 ⁇ 60 ⁇ 3 mm.
  • Tensile specimens were taken from these test plates and the mean values of six specimens were determined.
  • 8 kg of melt per test trial was transferred to a small, open crucible. Three of these small crucibles were placed in a larger, electrically heated crucible furnace and left to stand at 700°C for 3 or 10 days.
  • compositions V1 to V15 are compositions without beryllium.
  • Beryllium is known as an element for improving the oxidation tendency of an AlMg alloy and would falsify the evaluation of the effect of Ca and V.
  • the formation of the oxide layer which could be improved with the addition of Ca and V, was assessed on the basis of three predefined classes.
  • the aim is an oxide layer according to type A.
  • Type B is classified as a poor result and type C as a very poor result for the formation of the oxide layer. This classification, as used in the following examples, is explained in more detail below.
  • Type A Very thin oxide layer, which moves with the molten metal. It does not resist mechanical action.
  • Type B Thin, semi-solid oxide layer that breaks into pieces when the melt moves. Little resistance to mechanical action.
  • Type C Solid oxide layer that does not move with the melt. Considerable resistance to mechanical action. No Si Fe Cu Mn Mg Ca V Ti V1 0,04 1,6 0,001 0,006 4,25 0,00 0,025 0,002 V2 0,04 1,6 0,002 0,005 4,25 0,10 0,025 0,002 V3 0,04 1,6 0,002 0,005 4,25 0,20 0,025 0,003 No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer 3 days 10 days V1 255 123 14,2 Typ C Typ C 5 V2 254 122 14,1 Typ B Typ B V3 255 123 13,8 Typ A Typ A No Si Fe Cu Mn Mg Ca V Ti V4 0,04 1,2 0,001 0,005 3,8 0,15 0,025 0,004 V5 0,04 1,2 0,002 0,005 3,8 0,15 0,050 0,005 V6 0,04 1,2 0,002 0,005 3,8 0,25 0,050 0,005 No Rm [MPa] Rp0,2 [MPa] A [

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A Process for the production of an aluminium-magnesium alloy with a content of at least 1% Mg, preferably 1 - 7% Mg is suggested, where in a molten state 0.01 - 2% Ca and 0.01 - 0.3% V are added to the alloy.

Description

    Field of disclosure
  • The present invention relates to a process for producing an aluminium-magnesium alloy and to an alloy produced by the process.
    • Background, prior art
  • Usually, aluminum melts form a closed oxide layer. A thin oxide skin is formed relatively quickly, which usually does not increase significantly over a longer period of time. If the aluminum alloy contains magnesium (AlMg alloy), the formation of this closed oxide layer (passivation layer) is impeded and a stronger oxidation occurs, which progresses over a long period. The resulting cauliflower-like dross consists mainly of spinel (MgO - Al2O3) and can become very thick. After some time, particles in the melt sink down and the furnace becomes contaminated if the dross is not removed in time. A high furnace temperature favours this process.
  • It is known that the addition of beryllium (Be) can positively influence the oxidation tendency of AlMg melts. In earlier patents of the applicant, beryllium is mentioned for reducing the oxidation tendency of AlMg melts. One example is EP3159422 A1 . Here 10-50 Be ppm is added to an AlMg5Si2Mn alloy.
  • It has also been known for a long time that an increased addition of beryllium to a metal melt is undesirable because of the carcinogenic properties of beryllium and therefore a reduced addition should be aimed for. In EP1090156 B1 , a method is proposed for the addition of vanadium (V) and beryllium to an AlMg alloy. It was found that by adding vanadium, the amount of beryllium could be reduced and a corresponding reduction in the amount of dross could be observed.
    • Summary of disclosure
  • It is the object of the present invention to provide a process which further improves processes known from the prior art. This improvement is aimed in particular at the formation of the oxide layer forming on the melt surface.
  • One object is to provide a process which provides for the addition of an element or a combination of elements which cause a catalytic reaction and thus promote the formation of a passivation layer on the aluminium melt. By forming the passivation layer, further oxidation of the molten metal and thus undesirable formation of dross is prevented.
  • The process according to the invention is directed towards the production of an aluminium-magnesium alloy with a content of at least 1 % Mg, preferably 1 - 7% Mg, more preferably at least 2% Mg, preferably 2 - 7% Mg. To this alloy 0.01 - 2% calcium (Ca) and 0.01 - 0.3% V are added in the molten state.
  • In a first embodiment, 0.05% - 1 % Ca is added to the alloy in the molten state.
  • In a second embodiment, 0.07% - 0.5% Ca is added to the alloy in the molten state.
  • In a third embodiment, 0.02 - 0.15% V is added to the alloy in the molten state.
  • In a fourth embodiment, 0.02 - 0.08% V is added to the alloy in the molten state.
  • In a preferred version of the first embodiment, 0.02 - 0.15% V is added to the alloy in the molten state.
  • In a further preferred version of the first embodiment, 0.02 - 0.08% V is added to the alloy in the molten state.
  • In a preferred version of the second embodiment, 0.02 - 0.15% V is added to the alloy in the molten state.
  • In a further preferred version of the second embodiment, 0.02 - 0.08% V is added to the alloy in the molten state.
  • In the process according to the invention, Ca and V are added as aluminium master alloy during the production of the aluminium-magnesium alloy, preferably the first master alloy contains 10% Ca and 90% Al and the second master alloy contains 10% V and 90% Al.
  • In the process according to the invention, Ca and V are added at a melt temperature of 680 - 750°C.
  • In the process according to the invention, at least one of the following elements is added to the alloy in the molten state: Iron (Fe), Manganese (Mn), Strontium (Sr), Phosphorus (P), Nickel (Ni), Zinc (Zn), Copper (Cu), Silicon (Si), Titanium (Ti), Chromium (Cr), Molybdenum (Mo), Zirconium (Zr), Hafnium (Hf), Gallium (Ga), Boron (B).
  • In the process according to the invention, the following elements are added to the alloy in the molten state in addition to Al, Mg, Ca and V, either individually or as a master alloy:
    • 0.8 - 3.0 % Fe, preferably 0.8 - 2.0 % Fe
    • 0 - 2.5% Mn
    • 0 - 0.5% Ti
    • 0 - 0.4% Si
    • 0 - 0.8% Sr
    • 0 - 500 ppm P
    • 0 - 4.0 % Cu
    • 0 - 10.0% Zn
  • Up to 0.5% of an element or group of elements selected from the group consisting of Cr, Ni, Mo, Zr, Hf, Ga and B.
  • Where reference is made in this application to percentages, this is to be understood as percentages by weight (wt%; w%).
  • Where the present application refers to the molten state, this defines a molten metal with a temperature of preferably 680 to 750°C, in which Ca and V can dissolve completely and all other alloying elements are completely dissolved.
  • The alloy produced by the process according to the invention is a die-cast alloy.
  • An Al-Mg alloy produced by the process according to the invention consists of the following elements:
    • 0.8 - 3.0% Fe, preferably 1.0 - 2.4% Fe, more preferably 1.4% - 2.2% Fe
    • 2.0 - 7.0% Mg, preferably 3.0% - 5.0% Mg
    • 0.01 - 2% Ca
    • 0.01 - 0.3% V, preferably 0.02 - 0.15%, particularly preferred 0.02 - 0.08%
    • Up to 2.5% Mn, preferably 0 - 0.6% Mn
    • Up to 0.5% Ti
    • Up to 0.4% Si
    • Up to 0.8% Sr, preferably 0 - 0.03% Sr
    • Up to 500 ppm P, preferably 0 - 50 ppm P
    • Up to 4.0% Cu, preferably 0 - 0.2% Cu
    • Up to 10.0% Zn, preferably 0 - 0.5% Zn
  • Up to 0.5% of an element or element group selected from the group consisting of Cr, Ni, Mo, Zr, Hf, Ga and B, and the balance Al and unavoidable impurities.
    • Examples
  • An AlMg alloy which is to be protected against oxidation, is left in ambient air at a defined temperature for a certain time in an open crucible. Then the formation of the oxide layer is determined. In Al alloys with a Mg content of 4 - 6%, a visible oxide layer appears after a few days, the strength of which is significantly higher than in Al alloys without a Mg content.
  • The following 15 test trials were carried out at the Tech Center Rheinfelden. The alloys were produced in an open, electrically heated crucible furnace. At a melt temperature of 700°C, high-pressure die casting trials were carried out and the melt was left in ambient air. The casting tests were carried out on a 400 to die casting cell and the produced test plates had the dimensions 260 × 60 × 3 mm. Tensile specimens were taken from these test plates and the mean values of six specimens were determined. For the tests left in ambient air, 8 kg of melt per test trial was transferred to a small, open crucible. Three of these small crucibles were placed in a larger, electrically heated crucible furnace and left to stand at 700°C for 3 or 10 days.
  • The investigated compositions V1 to V15, shown in the following table, are compositions without beryllium. Beryllium is known as an element for improving the oxidation tendency of an AlMg alloy and would falsify the evaluation of the effect of Ca and V.
  • The formation of the oxide layer, which could be improved with the addition of Ca and V, was assessed on the basis of three predefined classes. The aim is an oxide layer according to type A. Type B is classified as a poor result and type C as a very poor result for the formation of the oxide layer. This classification, as used in the following examples, is explained in more detail below.
  • Type A: Very thin oxide layer, which moves with the molten metal. It does not resist mechanical action.
  • Type B: Thin, semi-solid oxide layer that breaks into pieces when the melt moves. Little resistance to mechanical action.
  • Type C: Solid oxide layer that does not move with the melt. Considerable resistance to mechanical action.
    No Si Fe Cu Mn Mg Ca V Ti
    V1 0,04 1,6 0,001 0,006 4,25 0,00 0,025 0,002
    V2 0,04 1,6 0,002 0,005 4,25 0,10 0,025 0,002
    V3 0,04 1,6 0,002 0,005 4,25 0,20 0,025 0,003
    No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer
    3 days 10 days
    V1 255 123 14,2 Typ C Typ C 5
    V2 254 122 14,1 Typ B Typ B
    V3 255 123 13,8 Typ A Typ A
    No Si Fe Cu Mn Mg Ca V Ti
    V4 0,04 1,2 0,001 0,005 3,8 0,15 0,025 0,004
    V5 0,04 1,2 0,002 0,005 3,8 0,15 0,050 0,005
    V6 0,04 1,2 0,002 0,005 3,8 0,25 0,050 0,005
    No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer
    3 days 10 days
    V4 246 113 15,2 Typ A Typ B
    V5 246 112 15,2 Typ A Typ A
    V6 246 113 14,2 Typ A TypA 10
    No Si Fe Cu Mn Mg Ca V Ti
    V7 0,04 1,15 0,001 0,002 3,79 0,00 0,010 0,005
    V8 0,05 1,15 0,001 0,002 3,78 0,11 0,024 0,005
    V9 0,05 1,16 0,001 0,003 3,83 0,11 0,024 0,005
    No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer
    3 days 10 days
    V7 241 110 17,2 Typ B Typ C
    V8 242 111 15,2 Typ A Typ A
    V9 242 111 15,4 Typ A Typ A
    No Si Fe Cu Mn Mg Ca V Ti
    V10 0,05 1,59 0,001 0,002 5,18 0,07 0,030 0,005
    V11 0,05 1,60 0,001 0,002 5,39 0,07 0,030 0,005
    V12 0,05 1,57 0,001 0,003 5,96 0,07 0,030 0,005
    No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer
    3 days 10 days 5
    V10 270 128 13,0 Typ A Typ A
    V11 277 131 13,5 Typ A Typ A
    V12 284 139 11,8 Typ A Typ A
    No Si Fe Cu Mn Mg Ca V Ti
    V13 0,05 1,66 0,002 0,007 4,33 0,20 0,01 0,002
    V14 0,05 1,67 0,002 0,008 4,32 0,30 0,01 0,002
    V15 0,05 1,65 0,002 0,007 4,27 0,40 0,01 0,003
    No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer
    3 days 10 days
    V13 259 119 13,6 Typ C Typ C
    V14 255 120 11,8 Typ A Typ B
    V15 257 122 10,5 Typ A Typ A 10
  • A melt left in ambient air at 0% Ca and 0% Be resulted in a solid oxide layer of type C after only 3 days. The addition of Ca and V significantly reduced the formation of the oxide layer. The combination of both elements showed a better effect than one of the elements alone.

Claims (12)

  1. Process for the production of an aluminium-magnesium alloy with a content of at least 1% Mg, preferably 1 - 7%, characterized in that 0.01 - 2% Ca and 0.01 - 0.3% V are added to the alloy in the molten state.
  2. Process for the production of an aluminium-magnesium alloy according to claim 1, characterized in that 0.05 - 1 % Ca is added to the alloy in the molten state.
  3. Process for the production of an aluminium-magnesium alloy according to claim 1, characterised in that 0.07 - 0.5% Ca is added to the alloy in the molten state.
  4. Process for the production of an aluminium-magnesium alloy according to claim 1 or 2 or 3, characterized in that 0.02 - 0.15% V is added to the alloy in the molten state.
  5. Process for the production of an aluminium-magnesium alloy according to claim 1 or 2 or 3, characterized in that 0.02 - 0.08% V is added to the alloy in the molten state.
  6. Process for the production of an aluminium-magnesium alloy having a content of at least 2% Mg, preferably 2 - 7%, according to any one of the preceding claims 1 to 5.
  7. Process for the production of an aluminium-magnesium alloy according to any one of the preceding claims, characterized in that Ca and V are added as two Al master alloys, preferably the first master alloy contains 10% Ca and 90% Al and the second master alloy contains 10% V and 90% Al.
  8. Process for the production of an aluminium-magnesium alloy according to any one of the preceding claims, characterized in that the addition of Ca and V is carried out at a melt temperature of 680 - 750°C.
  9. Process for the production of an aluminium-magnesium alloy according to any one of the preceding claims, wherein at least one of the following elements is added to the alloy in the molten state: Fe, Mn, Sr, P, Ni, Zn, Cu, Si, Ti, Cr, Mo, Zr, Hf, Ga, B.
  10. Process according to any one of the preceding claims, wherein the following elements are added to the alloy in the molten state, in addition to Al, Mg, Ca and V, either individually or as a master alloy:
    0.8 - 3.0 % Fe, preferably 0.8 - 2.0%
    0 - 2.5% Mn
    0 - 0.5% Ti
    0 - 0.4% Si
    0 - 0.8% Sr
    0 - 500 ppm P
    0 - 4.0 % Cu
    0 - 10.0% Zn
    up to 0.5% of an element or element group selected from the group consisting of chromium, nickel, molybdenum, zirconium, hafnium, calcium, gallium and boron.
  11. Process according to any one of the preceding claims, characterised in that the aluminium-magnesium alloy is a die-cast alloy.
  12. Alloy produced by a process according to any one of the preceding claims, wherein the alloy consists of the following composition:
    0.8 - 3.0% Fe, preferably 1.0 - 2.4% Fe, more preferably 1.4% - 2.2% Fe 2.0 - 7.0% Mg, preferably 3.0% - 5.0% Mg
    0.01 - 2% Ca
    0.01 - 0.3% V, preferably 0.02 - 0.15% V, particularly preferably 0.02 - 0.08% V
    Up to 2.5% Mn, preferably 0 - 0.6% Mn
    Up to 0.5% Ti
    Up to 0.4% Si
    Up to 0.8% Sr, preferably 0 - 0.03% Sr
    Up to 500 ppm P, preferably 0 - 50 ppm P
    Up to 4.0% Cu, preferably 0 - 0.2% Cu
    Up to 10.0% Zn, preferably 0 - 0.5% Zn
    Up to 0.5% of an element or group of elements selected from the group consisting of chromium, nickel, molybdenum, zirconium, hafnium, gallium and boron, and the balance aluminium and unavoidable impurities.
EP21213909.1A 2021-12-10 2021-12-10 Addition of calcium and vanadium to almg alloys Pending EP4194575A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21213909.1A EP4194575A1 (en) 2021-12-10 2021-12-10 Addition of calcium and vanadium to almg alloys
CN202280080777.6A CN118541498A (en) 2021-12-10 2022-12-02 Addition of calcium and vanadium to AlMg alloys
PCT/EP2022/084184 WO2023104652A1 (en) 2021-12-10 2022-12-02 Addition of calcium and vanadium to almg alloys
CA3240203A CA3240203A1 (en) 2021-12-10 2022-12-02 Addition of calcium and vanadium to almg alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21213909.1A EP4194575A1 (en) 2021-12-10 2021-12-10 Addition of calcium and vanadium to almg alloys

Publications (1)

Publication Number Publication Date
EP4194575A1 true EP4194575A1 (en) 2023-06-14

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EP21213909.1A Pending EP4194575A1 (en) 2021-12-10 2021-12-10 Addition of calcium and vanadium to almg alloys

Country Status (4)

Country Link
EP (1) EP4194575A1 (en)
CN (1) CN118541498A (en)
CA (1) CA3240203A1 (en)
WO (1) WO2023104652A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1090156B1 (en) 1998-06-26 2003-03-19 ALUMINIUM RHEINFELDEN GmbH Treatment of an aluminium alloy melt
CN103695739A (en) * 2014-01-16 2014-04-02 张霞 Aluminum-zinc-copper alloy plate after shot blasting treatment and preparation method thereof
EP3159422A1 (en) 2016-04-19 2017-04-26 Rheinfelden Alloys GmbH & Co. KG Alloy for pressure die casting
CN108330351A (en) * 2018-04-24 2018-07-27 晋江安能建材制造有限公司 magnesium titanium alloy plate and preparation method thereof
US20180298473A1 (en) * 2017-04-15 2018-10-18 The Boeing Company Aluminum alloy with additions of magnesium, calcium and at least one of chromium, manganese and zirconium, and method of manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1090156B1 (en) 1998-06-26 2003-03-19 ALUMINIUM RHEINFELDEN GmbH Treatment of an aluminium alloy melt
CN103695739A (en) * 2014-01-16 2014-04-02 张霞 Aluminum-zinc-copper alloy plate after shot blasting treatment and preparation method thereof
EP3159422A1 (en) 2016-04-19 2017-04-26 Rheinfelden Alloys GmbH & Co. KG Alloy for pressure die casting
US20180298473A1 (en) * 2017-04-15 2018-10-18 The Boeing Company Aluminum alloy with additions of magnesium, calcium and at least one of chromium, manganese and zirconium, and method of manufacturing the same
CN108330351A (en) * 2018-04-24 2018-07-27 晋江安能建材制造有限公司 magnesium titanium alloy plate and preparation method thereof

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CA3240203A1 (en) 2023-06-15
WO2023104652A1 (en) 2023-06-15
CN118541498A (en) 2024-08-23

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RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR