EP4392588A1 - Alliage pour coulée à base d'aluminium amélioré - Google Patents
Alliage pour coulée à base d'aluminium amélioréInfo
- Publication number
- EP4392588A1 EP4392588A1 EP22859593.0A EP22859593A EP4392588A1 EP 4392588 A1 EP4392588 A1 EP 4392588A1 EP 22859593 A EP22859593 A EP 22859593A EP 4392588 A1 EP4392588 A1 EP 4392588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- casting
- aluminium
- based alloy
- less
- 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.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 153
- 239000000956 alloy Substances 0.000 title claims abstract description 153
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 36
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000004411 aluminium Substances 0.000 title claims abstract description 33
- 238000005266 casting Methods 0.000 title claims description 67
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 14
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 239000011572 manganese Substances 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- 239000011701 zinc Substances 0.000 claims abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011777 magnesium Substances 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- 239000010936 titanium Substances 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 6
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000005495 investment casting Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- 210000001787 dendrite Anatomy 0.000 claims description 18
- 238000007528 sand casting Methods 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 13
- 238000004512 die casting Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910018594 Si-Cu Inorganic materials 0.000 description 6
- 229910008465 Si—Cu Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005476 soldering Methods 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 238000003483 aging Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- -1 aluminium-silicon- copper Chemical compound 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 238000002076 thermal analysis method Methods 0.000 description 4
- 229910018566 Al—Si—Mg Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001627 detrimental effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910017818 Cu—Mg Inorganic materials 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 238000001016 Ostwald ripening Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009866 aluminium metallurgy Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000010120 permanent mold casting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000001393 triammonium citrate Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
- C22F1/043—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 silicon as the next major constituent
Definitions
- the present invention relates to an aluminium based alloy for the manufacture of cast parts.
- the invention particularly relates to aluminium-silicon- copper based casting alloys suitable for sand or investment casting and it will be convenient to hereinafter disclose the invention in relation to that exemplary application.
- the invention is not limited to that application and could be used in a number of low pressure casting processes.
- Typical age hardenable aluminium castings are based around the Al-Si-X alloying system, with a range of alloying elements present.
- Other, less common alloy systems include those based around the Al-Cu-X system, which are also age-hardenable alloys.
- the advantages of the Al-Si-X alloys include low cost and very good castability especially when using methods such as sand casting, low pressure casting, and investment casting.
- alloys in the Al-Cu-X family of castings have relatively poor castability and are prone to hot tearing, but they may develop high levels of strength properties, especially when silver is added to their composition. These silver containing alloys have a significant cost penalty associated with their use, since even 0.5% silver can double the base price of a primary alloy.
- AMS-A- 21 180C (“Aluminum-Alloy Castings, High Strength”) is a widely used example that is also reflective of the contents of the MMPDS (Metallic Materials Properties Development and Standardization).
- MMPDS Metallic Materials Properties Development and Standardization
- the high strength aluminium alloy castings covered by AMS-A-21180C (2017) are intended for airframe, missile, and other applications where high strength, ductility, soundness and uniform composition within each casting are required.
- high pressure diecasting alloys are that they must contain high levels of iron or combined iron + manganese, at around 1 % total content, to avoid die soldering.
- Donohue and Lumley (R. J. Donahue & R. N. Lumley, Chapter 6, New Hypoeutectic I Hypereutectic die casting alloys and new permanent mold casting alloys that rely on strontium for their die soldering resistance, in Fundamentals of Aluminium Metallurgy, Recent Advances, R. N.
- B380 composition is the same as A 380 but with a maximum 1 .0%Zn;
- E380 composition is the same as C380 but the lower limit of Mg is absent.
- the composition is free of beryllium, rare earth elements, and free of chromium and other transition metal elements not including (i.e. with the exception of) Ti, Mn, Fe, Ni, Cu, Sr and Zn.
- the method of this second aspect is highly suited to the processes of investment casting and sand casting, but may also find utility with other casting techniques such as gravity casting.
- the cast alloy can be subjected to any number of secondary treatment processes including but not limited to heat treatment including tempering, annealing or the like, age hardening, solution heat treatment or the like.
- heat treatment procedures may be utilised, such as T4, T5, T6, T7, T8 or T9 tempers, depending on the desired material properties and result.
- Figure 4 shows the microstructure generated from an investment casting made from Alloy 3.
- the present invention provides an aluminium-silicon-copper based casting alloy which can be cast to produce a casting having high strength combined with good levels of tensile ductility.
- the castings may be produced by high integrity premium casting processes to achieve minimum levels of porosity and finer microstructures.
- the castings may be used together with chills or artificial cooling for critical locations to achieve fine microstructures.
- a wide variety of heat treatment procedures may be utilised, such as T4, T5, T6, T7, T8 or T9 tempers for example, depending on the desired result.
- Figure 1 shows a thermal analysis scans showing cooling curves of Al-Si- Cu alloys in accordance with the present invention. These were conducted using a standard thermal analysis method wherein a molded sand cast cup is used and the change in temperature is recorded as the metal cools.
- the sand molded cup for tracking the cooling curve is known as a QuiK-Cup-(without Te) commercially available from Heraeus Electronite, which is connected directly to a Picolog TC- 08 datalogger.
- a small sample of molten aluminium is taken from the prepared melt and poured into the sand cup, which contains a thermocouple and enables an accurate logging of the change in temperature of the metal under standard conditions.
- Table 10 shows the composition of a test aerospace casting of a part where the test bars were integrally cast with the part.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
L'invention concerne un alliage à base d'aluminium constitué essentiellement (% en poids) : de silicium, de 4,0 à 8,5 % de magnésium, de 0,07 à 0,3 % de titane, de 0,06 à 0,2 % de manganèse, de < 0,05 % de fer, de < 0,15 % de chrome, de < 0,01 % de nickel, de < 0,01 % de cuivre, de 2,5 à 4 % de zinc, de 0 à 0,5 % de strontium, de > 0,001 à 0,03 % de béryllium, de moins de 0,0005 % d'étain, de moins de 0,01 % d'autres éléments (chacun), de moins de 0,05 % de chaque autre élément total, de moins de 0,15 % au total, et d'un reste d'aluminium et d'autres impuretés inévitables.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2021902652A AU2021902652A0 (en) | 2021-08-23 | Improved Aluminium Based Casting Alloy | |
PCT/AU2022/050921 WO2023023704A1 (fr) | 2021-08-23 | 2022-08-18 | Alliage pour coulée à base d'aluminium amélioré |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4392588A1 true EP4392588A1 (fr) | 2024-07-03 |
Family
ID=85321353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22859593.0A Pending EP4392588A1 (fr) | 2021-08-23 | 2022-08-18 | Alliage pour coulée à base d'aluminium amélioré |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4392588A1 (fr) |
AU (1) | AU2022333523A1 (fr) |
WO (1) | WO2023023704A1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2009242962A1 (en) * | 2008-04-30 | 2009-11-05 | Commonwealth Scientific And Industrial Research Organisation | Improved aluminium based casting alloy |
FR2934607B1 (fr) * | 2008-07-30 | 2011-04-29 | Alcan Int Ltd | Piece moulee en alliage d'aluminium a hautes resistances a la fatigue et au fluage a chaud |
GB2553366A (en) * | 2016-09-06 | 2018-03-07 | Jaguar Land Rover Ltd | A casting alloy |
-
2022
- 2022-08-18 WO PCT/AU2022/050921 patent/WO2023023704A1/fr active Application Filing
- 2022-08-18 EP EP22859593.0A patent/EP4392588A1/fr active Pending
- 2022-08-18 AU AU2022333523A patent/AU2022333523A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
AU2022333523A1 (en) | 2024-03-28 |
WO2023023704A1 (fr) | 2023-03-02 |
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Legal Events
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Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20240219 |
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