EP3344790A1 - Produit extrude en alliage al-cu-mg a compromis ameliore entre resistance mecanique et tenacite - Google Patents
Produit extrude en alliage al-cu-mg a compromis ameliore entre resistance mecanique et tenaciteInfo
- Publication number
- EP3344790A1 EP3344790A1 EP16777712.7A EP16777712A EP3344790A1 EP 3344790 A1 EP3344790 A1 EP 3344790A1 EP 16777712 A EP16777712 A EP 16777712A EP 3344790 A1 EP3344790 A1 EP 3344790A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extruded product
- extruded
- product according
- alloy
- weight
- 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.)
- Granted
Links
- 235000012438 extruded product Nutrition 0.000 title claims abstract description 31
- 229910000861 Mg alloy Inorganic materials 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 25
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000010791 quenching Methods 0.000 claims abstract description 10
- 230000000171 quenching effect Effects 0.000 claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000002970 Calcium lactobionate Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000001192 hot extrusion Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000010949 copper Substances 0.000 description 21
- 239000011777 magnesium Substances 0.000 description 20
- 239000011572 manganese Substances 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052726 zirconium Inorganic materials 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 5
- 238000007792 addition Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 229910017818 Cu—Mg Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000003042 antagnostic effect Effects 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- -1 in% by weight Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
- B21C23/08—Making wire, bars, tubes
-
- 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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0084—Pistons the pistons being constructed from specific materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Definitions
- the invention relates to extruded products AlCuMg alloy in the treated state by solution solution, quenching and tempering, and having, compared to the products of the prior art, an improved compromise between the different required use properties.
- Extruded AlCuMg alloy products have numerous applications, particularly in the aerospace industry, the automotive industry, the manufacture of trucks and trains, the defense industry and general industrial applications such as ventilation, compressors or pistons.
- Properties required for these products include mechanical strength and damage tolerance.
- US Pat. No. 5,376,192 discloses alloys having improved combinations of strength and toughness having as composition (% by weight) Cu: 2.5 - 5.5; Mg: 0.10 - 2.30 with minor additions of grain refining and dispersoid elements.
- the patent application EP 1 114 877 A1 describes a composition structure element (in% by weight) Cu: 4.6 - 5.3; Mg: 0.10-0.50; Mn 0.15 - 0.45; If ⁇ 0.10; Fe ⁇ 0.15; Zn ⁇ 0.20; Cr ⁇ 0.10 other elements ⁇ 0.05 each and 0.15 in total, remains aluminum treated by dissolution, quenching, traction controlled to more than 1.5% of permanent deformation and income.
- the alloy contains manganese but contains no other anti-recrystallizing element such as vanadium or zirconium.
- US Patent Application 2005/0081965 discloses a wrought product alloy composition (in% by weight) Cu: 4.4 - 5.5; Mg: 0.3 - 1.0; Fe: 0 - 0.20; Yes ; 0 - 0.20; Zn: 0 - 0.40; Mn: 0.15 - 0.8 as a dispersoid element in combination with and or more dispersoid element selected from the group consisting of Zr, Se, Cr, Hf, Ag, Ti and V; remains aluminum in which the contents of Cu and Mg are such that - 1. l [Mg] + 5.38 ⁇ [Cu] ⁇ 5.5.
- the patent application WO 2012/140337 relates to alloys Al-Cu-Mg of composition, in% by weight, Cu colT : 2.6 - 3.7; Mg corr : 1.5 - 2.6; Mn: 0.2 - 0.5; Zr: ⁇ 0.16; Ti: 0.01-0.15; Cr ⁇ 0.25; If ⁇ 0.2; Fe ⁇ 0.2; other elements ⁇ 0.05 and aluminum remains; with Cu COTr > - 0.9 ( corr. Mg) + 4.3 and Cu COTr ⁇ - 0.9 ( corr.
- the object of the present invention is to provide extruded products with improved properties properties between high mechanical strength and toughness properties.
- the subject of the invention is an extruded alloy product of composition (% by weight): Cu: 5.05 - 5.35 Mg: 0.20 - 0.40 Mn: 0.20 - 0.40 Zr: 0, 08 - 0.15
- Ti 0.01 - 0.10 Zn: 0 - 0.15 Si ⁇ 0.10 Fe ⁇ 0.15 other elements ⁇ 0.05 each and ⁇ 0.15 in total, remains Al, treated by dissolution, quenching, controlled traction and tempering.
- the invention also relates to a method for manufacturing an extruded product according to the invention comprising:
- the static mechanical tensile properties in other words the ultimate tensile strength Rm, the conventional yield stress at 0.2% elongation Rp0.2, 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.
- the stress intensity factor (KQ) is determined according to ASTM E399.
- ASTM E399 provides the criteria to determine if KQ is a valid Ki C value .
- KQ values obtained for different materials are comparable to each other as long as the elasticity limits of the materials are of the same order of magnitude.
- EN 12258 Unless otherwise specified, the definitions of EN 12258 apply.
- the thickness of the extruded 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.
- extruded products of Al-Cu-Mg alloy having an improved compromise between strength and toughness, particularly in the longitudinal direction are obtained through a narrow selection of composition and a suitable processing method, including placing in solution, quenching, controlled traction and income.
- the copper content is between 5.05 and 5.35% by weight.
- the copper content is between 5, 10 and 5.30% by weight.
- the maximum copper content is 5.25% by weight and preferably 5.20% by weight.
- the magnesium content is between 0.20 and 0.40% by weight.
- the magnesium content is between 0.25 and 0.35% by weight.
- the combination of Cu and Mg additions, in particular with a Cu / Mg ratio of between 12.625 and 26.75, contributes to reaching an advantageous compromise between mechanical strength and toughness.
- the Cu / Mg ratio between 16 and 21.
- the contents of manganese and zirconium are controlled to obtain an advantageous granular structure.
- a manganese content of 0.20 to 0.40% by weight is associated with a zirconium content of 0.08 to 0.15% by weight.
- the manganese content is between 0.25 and 0.35% by weight.
- the zirconium content is between 0.10 and 0.14% by weight.
- the alloy may comprise up to 0.15% by weight of zinc, this addition may have a favorable effect on the mechanical strength, without risk for other properties, such as corrosion resistance.
- the zinc content is, however, less than 0.05% by weight.
- the iron and silicon contents are maintained below 0.15 and 0.10% by weight, and preferably below 0.09 and 0.08% by weight, respectively.
- the contents of the other elements are maintained below 0.05% by weight each and 0.15% in total. These other elements are impurities inevitably present in aluminum and their content must be limited so as not to affect the properties of the alloy.
- the chromium content is vanadium are maintained below 0.02% by weight.
- the manufacturing range of the extruded product according to the invention comprises the casting of a raw form, the homogenization of this raw form, the hot extrusion transformation of this homogenized raw form, the solution setting, quenching, traction controlled and income.
- the raw form is advantageously a billet but it can also be different insofar as it is possible to obtain a billet from this raw form, for example by machining.
- the raw form is homogenized. In one advantageous embodiment, the raw form is homogenized at a temperature between 490 and 540 ° C.
- the hot transformation of a billet obtained from this homogenized raw form is carried out by extrusion.
- the outlet temperature of the extruded product is at least 440 ° C.
- the extruded product thus obtained is dissolved at a temperature between 525 and 540 ° C.
- the dissolution is performed directly through the heat generated during the extrusion.
- the extruded product thus dissolved is then quenched, for example by spraying or immersion with cold water.
- the extruded product thus dissolved and quenched then undergoes controlled traction to a permanent deformation of at least 1.5%, preferably at least 2%.
- This controlled traction step makes it possible to relax the product and also contributes to the mechanical properties.
- the product thus obtained finally undergoes an artificial income at a temperature between 160 and 190 ° C for a period of typically between 5 and 40 hours.
- the temperature of the artificial income is between 165 and 180 ° C for a period of time typically between 10 and 35 hours.
- the tempering temperature is at least 170 ° C.
- the metallurgical state thus obtained is typically a T8511 state.
- the metallurgical structure obtained is preferably substantially non-recrystallized, with a recrystallization rate of less than 30%, and most often less than 10%, over the entire thickness.
- the extruded products according to the invention advantageously have a yield strength Ro, 2 (L) measured at quarter-diameter of at least 365 MPa, preferably at least 375 MPa, and preferably at least 380 MPa.
- the extruded products according to the invention can advantageously be used in the aerospace industry, the automotive industry, the manufacture of trucks and trains, the defense industry and general industrial applications such as ventilation systems, compressors or pistons, in the form of a machined or forged mechanical part.
- the thickness of the extruded products according to the invention, or the diameter in the case of bars of circular section, is advantageously at least 50 mm and preferably at least 100 mm.
- the products according to the invention are particularly suitable for use as a piston in a vehicle internal combustion engine and in particular a racing car.
- the products according to the invention can be used as pistons in internal combustion engines for Formula 1 racing cars.
- the concept of "Formula 1" refers to a particular competition regulation, and involves use of race cars specifically adapted to this competition.
- the products according to the invention can also be used as pistons in other racing vehicles, in particular in cars, motorcycles or racing ships.
- the products according to the invention according to the invention can also be used in vehicles intended for the general public as well as in commercial vehicles and any other vehicle using an internal combustion engine. They can also be used in hydraulic or pneumatic installations, especially at elevated temperatures, typically between 200 and 350 ° C.
- the alloy B is an alloy falling within the range of compositions according to the invention.
- the alloys were cast as billets and homogenized at 530 ° C for 6 hours. Table 1
- Ki c critical stress intensity factor
- K Q values are not valid Klc values according to ASTM E 399, the criterion P max / PQ ⁇ 1.10 not being verified as well as criterion 2.5 ( KQ / RP 0 .2) 2 > Wa in some cases.
- the alloy B according to the invention leads to a simultaneous improvement of the mechanical strength in the direction L, ie a 10% increase in the elastic limit R P0,2 (L) and 9% of the breaking load R m (L), and toughness in the LR direction, a 7% increase in K Q (LR). These properties being antagonistic this simultaneous improvement is surprising.
- alloy B The granular structure of alloy B was essentially non-recrystallized with a recrystallization rate of less than 10% while that of alloy A was partially recrystallized.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1558153A FR3040711B1 (fr) | 2015-09-03 | 2015-09-03 | Produit extrude en alliage al-cu-mg a compromis ameliore entre resistance mecanique et tenacite |
PCT/FR2016/052167 WO2017037391A1 (fr) | 2015-09-03 | 2016-09-01 | Produit extrude en alliage al-cu-mg a compromis ameliore entre resistance mecanique et tenacite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3344790A1 true EP3344790A1 (fr) | 2018-07-11 |
EP3344790B1 EP3344790B1 (fr) | 2019-08-07 |
Family
ID=55236473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16777712.7A Active EP3344790B1 (fr) | 2015-09-03 | 2016-09-01 | Produit extrude en alliage al-cu-mg a compromis ameliore entre resistance mecanique et tenacite |
Country Status (8)
Country | Link |
---|---|
US (1) | US20180312944A1 (fr) |
EP (1) | EP3344790B1 (fr) |
CN (1) | CN107949648A (fr) |
BR (1) | BR112018003169B1 (fr) |
CA (1) | CA2997024C (fr) |
ES (1) | ES2750666T3 (fr) |
FR (1) | FR3040711B1 (fr) |
WO (1) | WO2017037391A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3118065B1 (fr) * | 2020-12-18 | 2023-11-10 | Constellium Issoire | Produits corroyés en alliage 2xxx présentant une résistance à la corrosion optimisée et procédé d’obtention |
CN116024510B (zh) * | 2022-12-29 | 2023-11-07 | 重庆大学 | 一种提升AlCuMgAg系耐热铝合金性能的新工艺 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2802946B1 (fr) * | 1999-12-28 | 2002-02-15 | Pechiney Rhenalu | Element de structure d'avion en alliage al-cu-mg |
US20070151637A1 (en) * | 2005-10-28 | 2007-07-05 | Aleris Aluminum Koblenz Gmbh | Al-Cu-Mg ALLOY SUITABLE FOR AEROSPACE APPLICATION |
EP2121997B2 (fr) * | 2007-03-14 | 2016-08-24 | Aleris Aluminum Koblenz GmbH | Produit en alliage al-cu adapté à une application aérospatiale |
JP2010159488A (ja) * | 2008-12-09 | 2010-07-22 | Sumitomo Light Metal Ind Ltd | 2000系アルミニウム合金材の成形加工方法及び該2000系アルミニウム合金材の成形加工方法により成形される成形加工品 |
FR2974118B1 (fr) * | 2011-04-15 | 2013-04-26 | Alcan Rhenalu | Alliages aluminium cuivre magnesium performants a haute temperature |
-
2015
- 2015-09-03 FR FR1558153A patent/FR3040711B1/fr active Active
-
2016
- 2016-09-01 WO PCT/FR2016/052167 patent/WO2017037391A1/fr active Application Filing
- 2016-09-01 US US15/756,322 patent/US20180312944A1/en not_active Abandoned
- 2016-09-01 CN CN201680051343.8A patent/CN107949648A/zh active Pending
- 2016-09-01 ES ES16777712T patent/ES2750666T3/es active Active
- 2016-09-01 CA CA2997024A patent/CA2997024C/fr active Active
- 2016-09-01 EP EP16777712.7A patent/EP3344790B1/fr active Active
- 2016-09-01 BR BR112018003169-0A patent/BR112018003169B1/pt active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FR3040711A1 (fr) | 2017-03-10 |
ES2750666T3 (es) | 2020-03-26 |
BR112018003169A2 (pt) | 2018-09-25 |
WO2017037391A1 (fr) | 2017-03-09 |
EP3344790B1 (fr) | 2019-08-07 |
CA2997024C (fr) | 2023-08-01 |
US20180312944A1 (en) | 2018-11-01 |
BR112018003169B1 (pt) | 2022-02-15 |
CN107949648A (zh) | 2018-04-20 |
FR3040711B1 (fr) | 2017-08-11 |
CA2997024A1 (fr) | 2017-03-09 |
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