WO2013153292A1 - Alliage aluminium cuivre lithium à résistance au choc améliorée - Google Patents
Alliage aluminium cuivre lithium à résistance au choc améliorée Download PDFInfo
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- WO2013153292A1 WO2013153292A1 PCT/FR2013/000096 FR2013000096W WO2013153292A1 WO 2013153292 A1 WO2013153292 A1 WO 2013153292A1 FR 2013000096 W FR2013000096 W FR 2013000096W WO 2013153292 A1 WO2013153292 A1 WO 2013153292A1
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- mpa
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Classifications
-
- 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
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/142—Making profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating extruded work or parts of the extrusion press
- B21C29/003—Cooling or heating of work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
Definitions
- the invention relates to spun products made of aluminum-copper-lithium alloys, more particularly, such products, their manufacturing and use processes, intended in particular for aeronautical and aerospace construction.
- Aluminum alloy spun products are developed to produce high strength parts for the aerospace industry and the aerospace industry in particular.
- Aluminum alloy spun products are used in the aerospace industry for many applications, such as stiffeners or fuselage rails, fuselage frames, wing stiffeners, floor profiles or beams, as well as track rails. seat.
- the specific energy absorption capacity during an impact can be measured during a crash test in which the force provided is measured as a function of the displacement achieved. during the crash. This is the amount of energy expended to crush a unit mass of material in the stable crush phase.
- Ductile aluminum alloys have a significant ability to absorb impact energy during impact, in particular because they deform plastically.
- the specific energy absorption capacity during a shock of an aluminum alloy profile can be connected to the curve obtained during a tensile test of the material in question, in particular to the area under the curve deformation force. It can thus be evaluated by the product R m x A% or R p0 , 2 x A% in the direction L and in the direction TL.
- AlCuLi alloys are known.
- U.S. Patent 5,032,359 discloses a broad family of aluminum-copper-lithium alloys in which the addition of magnesium and silver, particularly between 0.3 and 0.5 percent by weight, increases the mechanical strength. .
- US Pat. No. 5,455,003 describes a process for manufacturing Al-Cu-Li alloys which have improved mechanical strength and toughness at cryogenic temperature, in particular through appropriate work-hardening and tempering.
- US Pat. No. 7,438,772 describes alloys comprising, in percentage by weight, Cu: 3-5, Mg: 0.5-2, Li: 0.01-0.9 and discourages the use of higher lithium contents due to degradation of the compromise between toughness and mechanical strength.
- US Pat. No. 7,229,509 describes an alloy comprising (% by weight): (2.5-5.5) Cu, (0.1-2.5) Li, (0.2-1.0) Mg, (0, 2-0.8) Ag, (0.2-0.8) Mn, 0.4 max Zr or other grain refining agents such as Cr, Ti, Hf, Se, V.
- US patent application 2009/142222 A1 discloses alloys comprising (in% by weight), 3.4 to 4.2% Cu, 0.9 to 1.4% Li, 0.3 to 0.7% of Ag, 0, 1 to 0.6% Mg, 0.2 to 0.8% of Zn, 0.1 to 0.6% Mn and 0.01 to 0.6% of at least one element for controlling the granular structure. This application also describes a process for manufacturing spun products.
- Patent application WO 2009/036953 discloses an alloy for structural elements comprising (in% by weight) 3.4 to 6.0% Cu, 0.9 to 1.7% Li, about 0.2 to 0 , 8% Mg, about 0.1 to 0.8% Ag, about 0.1 to 0.8% Mn, up to 1.5% Zn, and one or more members selected from the group consisting of Zr, Cr, Ti, Se and Hf, with Fe ⁇ 0.15 and Si ⁇ 0.15.
- AA2195 alloy comprising (in% by weight) 3.7 to 4.3% Cu, 0.8 to 1.2% Li, 0.25 to 0.8% Mg, O, is also known. 25 to 0.6% Ag, less than 0.25% Mn, less than 0.25% Zn 0.08 to 0.16% Zr, less than 0.10% Ti, less than 0, 15% Fe and less than 0.12% Si. 2195 alloy sections are described, for example, in the document "Friction on Welding Dissimilar Alloys for Tailoring Properties of Aerospace Parts", I. Eberl, C. Hantrais, J. C. Ehrstrom and C. Nardin, Science and Technology of Welding and Joining, 2010 Vol 15 No. 8 pp 699 - 705.
- a first object of the invention is an aluminum alloy spun product comprising
- Another subject of the invention is a method for manufacturing a spun product according to the invention in which:
- Yet another object of the invention is the use of a product according to the invention for the aeronautical construction as a stiffener or smooth fuselage, fuselage frame, wing stiffener, profile or beam floor or seat rail.
- Figure 1 Sectional view of the spun product of Example 1.
- Figure 2 Compromise between the yield strength and the EA parameter for the spun products of Example 1. Description of the invention
- alloys are in accordance with the regulations of The Aluminum Association, known to those skilled in the art. The density depends on the composition and is determined by calculation rather than a weight measurement method. The values are calculated in accordance with the procedure of The Aluminum Association, which is described on pages 2-12 and 2-13 of "Aluminum Standards and Data". The definitions of the metallurgical states are given in the European standard EN 515.
- the static mechanical characteristics in tension in other words the tensile strength R m , the conventional yield stress at 0.2% elongation R p o, 2 , and the elongation at break A, are determined by a tensile test according to standard NF EN ISO 6892-1, the sampling and the direction of the test being defined by the EN 485-1 standard.
- KQ stress intensity factor
- EN 12258 Unless otherwise specified, the definitions of EN 12258 apply.
- the thickness of the spun products is defined according to EN 2066: 2001: the cross section is divided into elementary rectangles of dimensions A and B; A being always the largest dimension of the elementary rectangle and B can be considered as the thickness of the elementary rectangle. The sole is the elementary rectangle with the largest dimension A.
- a selected class of aluminum-copper-lithium alloys makes it possible to manufacture spun products having improved properties with respect to those of known products, in particular in terms of energy absorption during impact, static mechanical strength properties, corrosion resistance and low density.
- the copper content is at least 4.2% by weight, preferably at least 4.3%, and most preferably at least 4.35% by weight. In one embodiment of the invention, the copper content is at least 4.50% by weight.
- the copper content is at most 4.8 wt.%, Preferably at most 4.7 wt.% And most preferably 4.55 wt.%.
- the selected copper content improves in particular the static mechanical properties. A high copper content is, however, unfavorable especially for the density of the alloy.
- the lithium content is at least 0.9% by weight and preferably at least 0.95% by weight.
- the lithium content is at most 1.1% by weight and preferably at most 1.05% by weight. In one embodiment of the invention, the lithium content is at most 1.04% by weight.
- the selected lithium content improves in particular the energy absorbed during an impact. An excessively low lithium content is however unfavorable, especially for the density of the alloy.
- the addition of manganese is an important aspect of the present invention.
- the manganese content is at least 0.2% by weight and preferably at least 0.3% by weight.
- the manganese content is at most 0.6% by weight and preferably at most 0.5% by weight. In one embodiment of the invention, the manganese content is at most 0.40% by weight.
- the addition of manganese in these amounts improves in particular the compromise between the desired properties.
- the magnesium content is at least 0.2% by weight and preferably at least 0.30% by weight.
- the magnesium content is at most 0.6% by weight and preferably at most 0.50% by weight.
- the magnesium content is at most 0.40% by weight.
- the silver content is at least 0.15% by weight.
- Content silver is at most 0.25% by weight.
- the present inventors have found that surprisingly silver addition of more than 0.25% by weight could have an adverse effect on the energy absorption during an impact. It is important to combine the silver content from 0.15% to 0.25% by weight to a controlled pull after dissolution and quenching with a permanent deformation of 2 to 4%, in particular because a controlled pull of less than 2% does not then allow to obtain the desired mechanical strength.
- the addition of magnesium and silver is necessary to achieve the favorable compromise between static mechanical strength, absorbed energy, density and toughness.
- the zirconium content is at least 0.07% by weight and preferably at least 0.10% by weight.
- the zirconium content is at most 0.15% by weight and preferably at most 0.13% by weight.
- the addition of zirconium is in particular necessary to maintain the essentially non-recrystallized structure desired for the spun products according to the invention.
- the titanium content is between 0.01 and 0.15% by weight and preferably between 0.02 and 0.05% by weight.
- the addition of titanium makes it possible in particular to obtain a controlled granular structure of the raw form obtained after casting.
- the amount of Fe and Si is less than or equal to 0.1% by weight each.
- the content of Fe and Si is less than 0.08% by weight each.
- the Zn content is less than 0.2% by weight, preferably less than 0.15% by weight and preferably less than 0.1% by weight.
- the presence of Zn can have an adverse effect on the compromise between static mechanical resistance, absorbed energy, density and toughness, especially since this element adversely affects the density of the alloy without having a favorable effect on the static mechanical resistance, absorbed energy and toughness.
- the unavoidable impurities are maintained at a content of less than or equal to 0.05% by weight each and 0.15% by weight in total.
- the spun products according to the invention are prepared by means of a process in which firstly a raw form of an alloy according to the invention is cast.
- the raw form is a spinning billet.
- the crude form is then homogenized at 490 ° C to 520 ° C for 8 to 48 hours.
- the homogenization can be carried out in one or more stages.
- the raw form can be cooled to room temperature after homogenization or directly brought to the temperature of hot deformation.
- the homogenized raw form is hot deformed by spinning with an initial hot deformation temperature of 420 ° C to 480 ° C to obtain a spun product.
- the spinning temperature used in particular makes it possible to obtain the desired essentially non-recrystallized structure.
- the products spun according to the invention are preferably profiles whose thickness of at least one of the elementary rectangles is between 1 mm and 30 mm, preferably between 2 to 20 mm and preferably between 5 and 16 mm.
- Spun products used in aeronautical construction generally comprise several segments or elementary rectangles of different thicknesses. A difficulty encountered with these products is to achieve satisfactory properties in the different segments.
- the alloy according to the invention makes it possible in particular to obtain a favorable compromise between static mechanical strength, absorbed energy, density and toughness for elementary rectangles of different thicknesses.
- the spun product thus obtained is then dissolved at a temperature of 500 ° C to 520 ° C for 15 minutes to 8 hours and then quenched with water at room temperature. Quenching is preferably carried out with water, by spraying or immersion.
- the spun product thus dissolved and quenched is then tractionned with a permanent deformation of 2 to 4%.
- a permanent deformation by too weak a traction such as a deformation by traction of 1.5%, does not make it possible to reach the compromise between desired properties.
- the spun product was finally heated back to a temperature of 100 ° C to 170 ° C for 5 to 100 hours.
- the income can be made in one or more levels.
- the income is carried out in a stage at a temperature between 130 ° C and 170 ° C and preferably between 150 and 160 ° C for a period of 20 to 40 hours.
- the spun products thus obtained preferably have a substantially non-recrystallized granular structure.
- the term granular structure essentially non-recrystallized a granular structure such that the recrystallization rate between 1 ⁇ 4 and 1 ⁇ 2 thickness of an elementary rectangle is less than 30% and preferably less than 10%.
- the spun products according to the invention have particularly advantageous mechanical properties.
- the spun products according to the invention have as properties at half thickness:
- EA (Rm (L) + RpO, 2 (L)) 12 * A% (L) + (Rm (TL) + Rp0.2 (TL)) 12 * A% (TL) of at least 14,000 and of preferably at least 14500
- EA (Rm (L) + RpO, 2 (L)) 12 * A% (L) + (Rm (TL) + Rp0.2 (TL)) 12 * A% (TL) at least equal to 9500 and of preferably at least 9800.
- the products according to the invention have an advantageous tenacity.
- the products according to the invention preferably have a Kic (LT) toughness of at least 24 MPa Vm and preferably at least 25 MPaVm for a thickness of between 5 and 16 mm and for a thickness of between 17 and 15 ⁇ m.
- LT Kic toughness
- 30 mm Kic toughness (LT) at least 21 MPa m and preferably at least 22 MPa m.
- the products according to the invention have an excellent resistance to corrosion.
- the spun products according to the invention have a resistance of at least 30 days when a stress corrosion test according to ASTM G44 and ASTM G49 standards on specimens taken in the TL direction for a voltage of 450 MPa.
- the spun products according to the invention are particularly advantageous for aircraft construction.
- the products according to the invention are used for aeronautical construction as a stiffener or smooth fuselage, fuselage frame, wing stiffener, profile or beam floor or seat rail.
- the products according to the invention are used as a floor beam, in particular as a beam of the lower floor of the aircraft, or cargo floor, this floor being particularly important during the impact.
- the raw forms were homogenized at a temperature of 490 ° C to 520 ° C adapted according to their composition, spun as spun product described in Figure 1, the thickness of the elementary rectangles is between 17 and 22 mm, with an initial hot deformation temperature of about 460 ° C.
- the spun products obtained were dissolved at a temperature suitable for the alloy of between 500 ° C. and 520 ° C., quenched, triturated for about 3% and recovered for 30 hours at 155 ° C.
- Table 2 The mechanical properties obtained for cylindrical samples of diameter 10 mm taken at mid-thickness and quarter-width in the 18 mm thick sole of the spun products are presented in Table 2. In order to evaluate the energy absorption during of a shock we calculated the parameter
- the structure of the spun products obtained was essentially non-recrystallized.
- the degree of recrystallized granular structure between 1 ⁇ 4 and 1 ⁇ 2 thickness was less than 10.
- Figure 2 shows the tradeoff between the yield strength and the EA parameter.
- the alloy according to the invention makes it possible to reach a particularly advantageous compromise.
- the alloy spun product A according to the invention underwent a stress corrosion test according to ASTM G44 and ASTM G49 standards for a tension of 450 MPa on specimens taken in the TL direction. No rupture was observed after 30 days of testing.
- the alloys A and B presented in Example 1 were spun as a spun product of a different shape and having lower elementary rectangles thicknesses between 5 and 12 mm.
- the crude forms were homogenized 15h at 500 ° C and then 20-25 h at 510 ° C, spun as I-spun product with an initial hot deformation temperature of about 460 ° C.
- the spun products obtained were dissolved at a temperature of approximately 510 ° C., quenched, triturated approximately 3.5% and returned for 30 hours at 155 ° C.
- the mechanical properties in the longitudinal direction were measured on "full thickness” specimens taken from the various elementary rectangles of the spun product (thicknesses 5, 7 and 12 mm) and averaged for the different sections obtained.
- the "full thickness” measurement underestimates the real value measured at mid-thickness on machined specimens, because of the effect of the different microstructure close to the surface.
- a correction factor was introduced to account for this bias, however, the factor was chosen such that the actual machined test specimen value would likely be greater than the indicated corrected value.
- the mechanical properties in the transverse direction were measured on machined specimens taken from the zone of smaller thickness, the only possible zone for this type of measurement because of the length of the specimens necessary for this measurement.
- the toughness properties were measured on specimens taken from the thickest zone.
- the structure of the spun products obtained was essentially non-recrystallized.
- the degree of recrystallized granular structure between 1 ⁇ 4 and 1 ⁇ 2 thickness was less than 10%.
- the spun product according to the invention achieves a more favorable compromise than the spun product of reference between the mechanical strength and the EA parameter.
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Steel (AREA)
- Extrusion Of Metal (AREA)
- Powder Metallurgy (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE13722480.4T DE13722480T1 (de) | 2012-04-11 | 2013-04-10 | Aluminium-kupfer-lithium-legierung mit verbesserter schlagzähigkeit |
| EP13722480.4A EP2836620B1 (fr) | 2012-04-11 | 2013-04-10 | Alliage aluminium cuivre lithium à résistance au choc améliorée |
| CA2869733A CA2869733C (fr) | 2012-04-11 | 2013-04-10 | Alliage aluminium cuivre lithium a resistance au choc amelioree |
| BR112014025110-0A BR112014025110B1 (pt) | 2012-04-11 | 2013-04-10 | Produto feito em liga à base de alumínio seu processo para fabricação e uso. |
| CN201380019554.XA CN104220616B (zh) | 2012-04-11 | 2013-04-10 | 具有提高的抗撞击性能的铝‑铜‑锂合金 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261622774P | 2012-04-11 | 2012-04-11 | |
| US61/622,774 | 2012-04-11 | ||
| FR1201063A FR2989387B1 (fr) | 2012-04-11 | 2012-04-11 | Alliage aluminium cuivre lithium a resistance au choc amelioree |
| FR12/01063 | 2012-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013153292A1 true WO2013153292A1 (fr) | 2013-10-17 |
Family
ID=46940511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2013/000096 Ceased WO2013153292A1 (fr) | 2012-04-11 | 2013-04-10 | Alliage aluminium cuivre lithium à résistance au choc améliorée |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9945010B2 (fr) |
| EP (1) | EP2836620B1 (fr) |
| CN (1) | CN104220616B (fr) |
| BR (1) | BR112014025110B1 (fr) |
| CA (1) | CA2869733C (fr) |
| DE (1) | DE13722480T1 (fr) |
| FR (1) | FR2989387B1 (fr) |
| WO (1) | WO2013153292A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2560485C1 (ru) * | 2014-06-10 | 2015-08-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Высокопрочный сплав на основе алюминия и изделие, выполненное из него |
| EP3011068B1 (fr) | 2013-06-21 | 2017-05-31 | Constellium Issoire | Elément de structure extrados en alliage aluminium cuivre lithium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3014904B1 (fr) * | 2013-12-13 | 2016-05-06 | Constellium France | Produits files pour planchers d'avion en alliage cuivre lithium |
| CN109890663B (zh) | 2016-08-26 | 2023-04-14 | 形状集团 | 用于横向弯曲挤压成形铝梁从而温热成型车辆结构件的温热成型工艺和设备 |
| US11072844B2 (en) | 2016-10-24 | 2021-07-27 | Shape Corp. | Multi-stage aluminum alloy forming and thermal processing method for the production of vehicle components |
| CN107964641B (zh) * | 2017-10-18 | 2021-02-05 | 中国航发北京航空材料研究院 | 一种改善铝锂合金蠕变成形性能的热处理方法 |
| US20190233921A1 (en) * | 2018-02-01 | 2019-08-01 | Kaiser Aluminum Fabricated Products, Llc | Low Cost, Low Density, Substantially Ag-Free and Zn-Free Aluminum-Lithium Plate Alloy for Aerospace Application |
| FR3080860B1 (fr) * | 2018-05-02 | 2020-04-17 | Constellium Issoire | Alliage aluminium cuivre lithium a resistance en compression et tenacite ameliorees |
| CN110423927A (zh) * | 2019-07-17 | 2019-11-08 | 中南大学 | 一种超高强铝锂合金及其制备方法 |
| CN110952010A (zh) * | 2019-12-18 | 2020-04-03 | 东北轻合金有限责任公司 | 一种火箭槽体用耐高温铝合金板材的制造方法 |
| CN116287913A (zh) * | 2023-02-10 | 2023-06-23 | 南京航空航天大学 | 一种增材制造用微量元素改性铝锂合金粉末及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5032359A (en) | 1987-08-10 | 1991-07-16 | Martin Marietta Corporation | Ultra high strength weldable aluminum-lithium alloys |
| US5455003A (en) | 1988-08-18 | 1995-10-03 | Martin Marietta Corporation | Al-Cu-Li alloys with improved cryogenic fracture toughness |
| US7229509B2 (en) | 2003-05-28 | 2007-06-12 | Alcan Rolled Products Ravenswood, Llc | Al-Cu-Li-Mg-Ag-Mn-Zr alloy for use as structural members requiring high strength and high fracture toughness |
| US7438772B2 (en) | 1998-06-24 | 2008-10-21 | Alcoa Inc. | Aluminum-copper-magnesium alloys having ancillary additions of lithium |
| WO2009036953A1 (fr) | 2007-09-21 | 2009-03-26 | Aleris Aluminum Koblenz Gmbh | Produit en alliage ai-cu-li qui convient pour une application aérospatiale |
| US20090142222A1 (en) | 2007-12-04 | 2009-06-04 | Alcoa Inc. | Aluminum-copper-lithium alloys |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2969177B1 (fr) * | 2010-12-20 | 2012-12-21 | Alcan Rhenalu | Alliage aluminium cuivre lithium a resistance en compression et tenacite ameliorees |
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2012
- 2012-04-11 FR FR1201063A patent/FR2989387B1/fr active Active
-
2013
- 2013-03-13 US US13/802,280 patent/US9945010B2/en active Active
- 2013-04-10 DE DE13722480.4T patent/DE13722480T1/de active Pending
- 2013-04-10 EP EP13722480.4A patent/EP2836620B1/fr active Active
- 2013-04-10 CA CA2869733A patent/CA2869733C/fr active Active
- 2013-04-10 BR BR112014025110-0A patent/BR112014025110B1/pt active IP Right Grant
- 2013-04-10 CN CN201380019554.XA patent/CN104220616B/zh active Active
- 2013-04-10 WO PCT/FR2013/000096 patent/WO2013153292A1/fr not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3011068B1 (fr) | 2013-06-21 | 2017-05-31 | Constellium Issoire | Elément de structure extrados en alliage aluminium cuivre lithium |
| RU2560485C1 (ru) * | 2014-06-10 | 2015-08-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Высокопрочный сплав на основе алюминия и изделие, выполненное из него |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104220616A (zh) | 2014-12-17 |
| FR2989387A1 (fr) | 2013-10-18 |
| CA2869733C (fr) | 2021-07-20 |
| CN104220616B (zh) | 2017-12-15 |
| EP2836620A1 (fr) | 2015-02-18 |
| US20130269840A1 (en) | 2013-10-17 |
| DE13722480T1 (de) | 2015-06-25 |
| EP2836620B1 (fr) | 2019-03-27 |
| CA2869733A1 (fr) | 2013-10-17 |
| US9945010B2 (en) | 2018-04-17 |
| FR2989387B1 (fr) | 2014-11-07 |
| BR112014025110B1 (pt) | 2019-04-24 |
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