EP0787217A1 - Procede de fabrication de produits en alliage alsimgcu a resistance amelioree a la corrosion intercristalline - Google Patents
Procede de fabrication de produits en alliage alsimgcu a resistance amelioree a la corrosion intercristallineInfo
- Publication number
- EP0787217A1 EP0787217A1 EP95936606A EP95936606A EP0787217A1 EP 0787217 A1 EP0787217 A1 EP 0787217A1 EP 95936606 A EP95936606 A EP 95936606A EP 95936606 A EP95936606 A EP 95936606A EP 0787217 A1 EP0787217 A1 EP 0787217A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- produced
- products
- intercrystalline corrosion
- intercrystalline
- income
- 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
Classifications
-
- 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
- C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
-
- 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
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
Definitions
- the invention relates to the field of AlSiMgCu high-strength aluminum alloy products, belonging to the 6000 series according to the international aluminum nomenclature.
- US patent 4082578 of ALCOA describes two families of alloys, subsequently registered with the Aluminum Association under numbers ⁇ 6009 and 6010, the first favoring formability and the second mechanical strength. These alloys have good resistance to indentation, stress corrosion and exfoliating corrosion, as well as good spot welding ability, which makes them particularly suitable for automobile construction (bodywork and bumpers).
- These alloys have the following composition (by weight): Si: 0.4 - 1.2% Mg: 0.4 - 1.1% Cu: 0.1 - 0.6% Mn: 0.2 - 0.8 % Fe: 0.05 - 0.35% In some cases, it can exceed in the T6 state (according to the designation of the Aluminum Association) 400 MPa for the tensile strength R m and 370 MPa for the limit elastic at 0.2% RQ 2 -
- Patent EP 173632 of the applicant relates to spun alloy products or dies of composition: Si: 0.9 - 1.3% and preferably: 1 - 1.15% Mg: 0.7 - 1.1% "0.8 - 1%
- the subject of the invention is therefore a method of manufacturing wrought products of AlSiMgCu aluminum alloy with high mechanical strength and having good resistance to intercrystalline corrosion, comprising the following steps:
- - income comprising at least one plateau at a temperature between 150 and 250 ⁇ C, and preferably between 165 220 ⁇ C, and of a duration between 30h and 300h, preferably between 70 and 120h in duration equivalent to 175 ⁇ C .
- the tempering preferably comprises another higher temperature level between 185 and 250 ⁇ C, the duration equivalent to 175 ⁇ C being always, for all of the levels, between 30 and 300 h.
- the subject of the invention is also a rolled product spun from an aluminum alloy of the mentioned composition c above, sensitized to intercrystalline corrosion and having, in this desensitized state, an electrical conductivity greater by at least 0.5 MS / m than that measured in state T6.
- It also relates to an airplane fuselage element or a structural element of a road or rail vehicle produced from products according to the invention or from products produced according to the method of the invention.
- the alloys according to the invention having a Mg / Si ratio ⁇ 1 have a rather higher silicon content, since the
- the desensitized alloys according to the invention have a higher electrical conductivity of at least 0.5 MS / m compared to the electrical conductivity in the T6 state when the income applied is of the two-bearing type and of 1 MS / m in the case of single income.
- the Cu content must be> 0.5% to have both sufficient mechanical characteristics and good thermal stability of the alloy. Above 1.1%, there is a risk of seeing stress corrosion and exfoliating corrosion problems, as well as a decrease in toughness due to primary copper particles.
- An addition of Zn at a content of between 0.15 and 1% has, for an identical composition and income, a positive influence on the resistance to intercrystalline corrosion.
- the products according to the invention can be laminated sheets or extruded profiles.
- the alloy is cast in plates (for sheets) or in billets (for profiles) and its transformation range is relatively conventional until final income. Homogenization takes place between 480 and 570 ⁇ C for a period of between 5 and 50 hours.
- the next step is the working by hot rolling or spinning, then, in the case of sheets, cold rolling to a thickness between 0.5 and 15 mm.
- a thorough dissolution is carried out at a temperature close to the solidus, between 540 and 575 ⁇ C, then water quenching with a cooling rate depending on the thickness of the product.
- Tempering is a particular heat treatment which makes it possible both to obtain the required mechanical characteristics while desensitizing the alloy to intercrystalline corrosion.
- This treatment can be either a single-bearing treatment at a temperature between 150 and 250 ⁇ C, and preferably between 165 and 220'C, or a two-bearing treatment, one of the bearings being at a temperature between 150 and 250 ⁇ C (preferably 165 and 220 ⁇ C) and the other at a higher temperature, between 170 and 270 e C.
- the processing time depends on the temperature. We can reduce this duration to a time equivalent to 175 ⁇ C t ⁇ q , linked to the temperature T of the plateau in 'K and to the duration t of treatment at this temperature (the duration of temperature rise being taken into account in the calculation equivalent time) by the relation:
- the optimum desensitization range is between 70 and 120 h for two-bearing treatments and between 150 and 250 h for single-bearing treatments. Following this income, it can be seen that the difference in conductivity with state T6 is always greater than 0.5 MS / m.
- the products produced according to the invention have a modulus of elasticity and an excellent specific modulus (quotient of the modulus by density) taking into account their lower density than that of alloys 2000 for example.
- a modulus of elasticity and an excellent specific modulus (quotient of the modulus by density) taking into account their lower density than that of alloys 2000 for example.
- a module of 71 GPa has been measured, barely less than the module of sheets of the same thickness in 2024 bare alloy, and clearly greater than that of the 2024 plated usually used for the fuselage of commercial aircraft.
- the plate was homogenized 21 h at 530 ° C, peeled, then hot and cold rolled to a thickness of 1.6 mm.
- the dissolution was carried out at 550 ⁇ C for 1 hour.
- the plates were homogenized 21 h at 530 ⁇ C, peeled, then hot and cold rolled to a thickness of 1.6 mm.
- the dissolution was carried out at 550 ⁇ C for 1 hour for alloy A and at 570 ⁇ C for 1 hour for alloy B.
- the conductivities in the T6 state of the alloys A and B are respectively 24.3 and 24.7 MS / m.
- the plate was homogenized at 530 ° C, peeled, hot rolled to a thickness of 35 mm, dissolved in 550 ° C quenched.
- the mechanical characteristics measured in the long through-long direction are as follows: direction L direction TL
- the rolled or extruded products and desensitized to intercrystalline corrosion according to the invention are particularly well suited to the production of structural parts for aeronautics, in particular fuselages, and for road and rail vehicles.
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Conductive Materials (AREA)
- Electroplating Methods And Accessories (AREA)
- Extrusion Of Metal (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9413047A FR2726007B1 (fr) | 1994-10-25 | 1994-10-25 | Procede de fabrication de produits en alliage alsimgcu a resistance amelioree a la corrosion intercristalline |
FR9413047 | 1994-10-25 | ||
PCT/FR1995/001412 WO1996012829A1 (fr) | 1994-10-25 | 1995-10-24 | Procede de fabrication de produits en alliage alsimgcu a resistance amelioree a la corrosion intercristalline |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0787217A1 true EP0787217A1 (fr) | 1997-08-06 |
EP0787217B1 EP0787217B1 (fr) | 1998-05-13 |
Family
ID=9468402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95936606A Revoked EP0787217B1 (fr) | 1994-10-25 | 1995-10-24 | Procede de fabrication de produits en alliage alsimgcu a resistance amelioree a la corrosion intercristalline |
Country Status (8)
Country | Link |
---|---|
US (1) | US5858134A (fr) |
EP (1) | EP0787217B1 (fr) |
JP (1) | JPH10512924A (fr) |
KR (1) | KR970707314A (fr) |
CA (1) | CA2202184A1 (fr) |
DE (1) | DE69502508T2 (fr) |
FR (1) | FR2726007B1 (fr) |
WO (1) | WO1996012829A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2856368A1 (fr) | 2003-06-18 | 2004-12-24 | Pechiney Rhenalu | Piece de peau de carrosserie automobile en tole d'alliage ai-si-mg fixee sur structure acier |
EP1143027B1 (fr) * | 2000-04-07 | 2008-06-11 | Alcan Rhenalu | Procédé de fabrication d'éléments de structure d'avions en alliage d'aluminium Al-Si-Mg |
EP3214191A1 (fr) | 2016-03-04 | 2017-09-06 | Impol 2000, d. d. | Alliage d'aluminium al-mg-si à haute résistance et son procédé de fabrication |
CN111961928A (zh) * | 2020-09-07 | 2020-11-20 | 四川三星新材料科技股份有限公司 | 一种汽车用高硅铝合金型材的生产工艺方法 |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0808911A1 (fr) * | 1996-05-22 | 1997-11-26 | Alusuisse Technology & Management AG | Elément de construction |
CA2299449C (fr) | 1997-02-23 | 2006-09-19 | Hoogovens Aluminium Walzprodukte Gmbh | Alliage al-mg-zn-si haute resistance pour structures soudees et brasage |
AUPQ485399A0 (en) * | 1999-12-23 | 2000-02-03 | Commonwealth Scientific And Industrial Research Organisation | Heat treatment of age-hardenable aluminium alloys |
AU766929B2 (en) * | 1999-12-23 | 2003-10-23 | Commonwealth Scientific And Industrial Research Organisation | Heat treatment of age-hardenable aluminium alloys |
US6537392B2 (en) | 2000-06-01 | 2003-03-25 | Alcoa Inc. | Corrosion resistant 6000 series alloy suitable for aerospace applications |
FR2811337B1 (fr) * | 2000-07-05 | 2002-08-30 | Pechiney Rhenalu | Toles en alliage d'aluminium plaquees pour elements de structure d'aeronefs |
FR2807448B1 (fr) * | 2000-09-19 | 2002-08-09 | Pechiney Rhenalu | Procede de fabrication d'elements de structure d'avions en alliage d'aluminium al-si-mg |
AUPR360801A0 (en) * | 2001-03-08 | 2001-04-05 | Commonwealth Scientific And Industrial Research Organisation | Heat treatment of age-hardenable aluminium alloys utilising secondary precipitation |
US6613167B2 (en) * | 2001-06-01 | 2003-09-02 | Alcoa Inc. | Process to improve 6XXX alloys by reducing altered density sites |
WO2003006697A1 (fr) * | 2001-07-09 | 2003-01-23 | Corus Aluminium Walzprodukte Gmbh | Alliage soudable d'al-mg-si a haute resistance |
WO2003010348A2 (fr) * | 2001-07-23 | 2003-02-06 | Corus Aluminium Walzprodukte Gmbh | Alliage al-mg-si haute resistance soudable |
US6925352B2 (en) * | 2001-08-17 | 2005-08-02 | National Research Council Of Canada | Method and system for prediction of precipitation kinetics in precipitation-hardenable aluminum alloys |
AU2003240727A1 (en) * | 2002-06-24 | 2004-01-06 | Corus Aluminium Walzprodukte Gmbh | Method of producing high strength balanced al-mg-si alloy and a weldable product of that alloy |
ES2203334B1 (es) * | 2002-09-05 | 2005-03-16 | Universidad Complutense De Madrid | Procedimiento de fabricacion y conformado superplastico de las aleaciones zn-al-ag. |
US20050034794A1 (en) * | 2003-04-10 | 2005-02-17 | Rinze Benedictus | High strength Al-Zn alloy and method for producing such an alloy product |
DE112004000603B4 (de) | 2003-04-10 | 2022-11-17 | Novelis Koblenz Gmbh | AI-Zn-Mg-Cu-Legierung |
US7666267B2 (en) * | 2003-04-10 | 2010-02-23 | Aleris Aluminum Koblenz Gmbh | Al-Zn-Mg-Cu alloy with improved damage tolerance-strength combination properties |
US20060032560A1 (en) * | 2003-10-29 | 2006-02-16 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
US20060070686A1 (en) * | 2004-10-05 | 2006-04-06 | Corus Aluminium Walzprodukte Gmbh | High hardness moulding plate and method for producing said plate |
US7883591B2 (en) * | 2004-10-05 | 2011-02-08 | Aleris Aluminum Koblenz Gmbh | High-strength, high toughness Al-Zn alloy product and method for producing such product |
EP1812232B1 (fr) * | 2004-11-16 | 2019-06-19 | Aleris Aluminum Duffel BVBA | Materiau en feuille d'aluminium composite |
DE102005015880B4 (de) * | 2005-04-06 | 2010-07-22 | Airbus Deutschland Gmbh | Strangpressprofil für Luftfahrzeuge und Vorrichtung zur differentiellen Wärmebehandlung eines solchen Profils |
CA2643824C (fr) | 2006-04-13 | 2013-01-22 | Airbus Deutschland Gmbh | Procede de traitement thermique d'un profile, dispositif de traitement thermique d'un profile et profile |
EP1852250A1 (fr) * | 2006-05-02 | 2007-11-07 | Aleris Aluminum Duffel BVBA | Produit de tôle plaqueé |
FR2902442B1 (fr) * | 2006-06-16 | 2010-09-03 | Aleris Aluminum Koblenz Gmbh | Alliage de la serie aa6xxx, a grande tolerance aux dommages pour l'industrie aerospatiale |
US8182851B2 (en) * | 2006-06-23 | 2012-05-22 | Church & Dwight Co., Inc. | Ruminant feedstock dietary supplement |
US7939117B2 (en) * | 2006-06-23 | 2011-05-10 | Church & Dwight Co., Inc. | Ruminant feedstock dietary supplement |
US8178138B2 (en) * | 2006-06-23 | 2012-05-15 | Church & Dwight Co., Inc. | Ruminant feedstock dietary supplement |
US8088234B2 (en) * | 2006-07-07 | 2012-01-03 | Aleris Aluminum Koblenz Gmbh | AA2000-series aluminum alloy products and a method of manufacturing thereof |
FR2907796B1 (fr) * | 2006-07-07 | 2011-06-10 | Aleris Aluminum Koblenz Gmbh | Produits en alliage d'aluminium de la serie aa7000 et leur procede de fabrication |
JP5495183B2 (ja) | 2010-03-15 | 2014-05-21 | 日産自動車株式会社 | アルミニウム合金及びアルミニウム合金製高強度ボルト |
JP5925667B2 (ja) * | 2012-11-19 | 2016-05-25 | 株式会社神戸製鋼所 | 高圧水素ガス容器用アルミニウム合金材とその製造方法 |
DE102013103469A1 (de) * | 2013-04-08 | 2014-10-09 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Kraftfahrzeug-Fahrwerksbauteils |
CN105401013A (zh) * | 2015-11-10 | 2016-03-16 | 苏州三基铸造装备股份有限公司 | 汽车结构件铸造铝合金及其制备方法 |
KR102644089B1 (ko) * | 2017-05-26 | 2024-03-07 | 노벨리스 인크. | 고강도 내식성 6xxx 시리즈 알루미늄 합금 및 이의 제조 방법 |
US10030295B1 (en) | 2017-06-29 | 2018-07-24 | Arconic Inc. | 6xxx aluminum alloy sheet products and methods for making the same |
JP6964552B2 (ja) * | 2018-04-24 | 2021-11-10 | 株式会社神戸製鋼所 | アルミニウム合金およびアルミニウム合金製クラッド材 |
CN109055698B (zh) * | 2018-09-28 | 2020-04-28 | 中南大学 | 适用于汽车车身的6xxx铝合金及车身板制备工艺 |
CN109355533A (zh) * | 2018-12-13 | 2019-02-19 | 徐州宁铝业科技有限公司 | 一种耐高温铝合金及其制备方法 |
CN110172653B (zh) * | 2019-01-31 | 2022-02-18 | 苏州铭恒金属科技有限公司 | 一种提高铝合金铸锭的电导率的均质方法以及由该均质方法制得的铝合金铸锭 |
CN112122882A (zh) * | 2019-06-25 | 2020-12-25 | 西南铝业(集团)有限责任公司 | 一种纯铝合金o态板材的生产工艺 |
CN111705243A (zh) * | 2020-06-12 | 2020-09-25 | 包头常铝北方铝业有限责任公司 | 一种中空玻璃铝隔条用铝合金带材及其制备方法 |
CN112626386B (zh) * | 2020-11-04 | 2022-08-16 | 佛山科学技术学院 | 一种高强耐蚀的Al-Mg-Si-Cu系铝合金及其制备方法和应用 |
CN113215451B (zh) * | 2021-05-13 | 2022-04-22 | 中南大学 | 一种高强度Al-Mg-Si-Cu系铝合金及其制备方法 |
CN113564433B (zh) * | 2021-08-10 | 2022-06-03 | 江苏亚太航空科技有限公司 | 一种耐腐蚀的6082铝合金材料及其熔铸工艺 |
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US4082578A (en) * | 1976-08-05 | 1978-04-04 | Aluminum Company Of America | Aluminum structural members for vehicles |
US4424084A (en) * | 1980-08-22 | 1984-01-03 | Reynolds Metals Company | Aluminum alloy |
FR2524908A1 (fr) * | 1982-04-13 | 1983-10-14 | Pechiney Aluminium | Procede de fabrication de pieces matricees ou forgees en alliage d'aluminium |
US4711762A (en) * | 1982-09-22 | 1987-12-08 | Aluminum Company Of America | Aluminum base alloys of the A1-Cu-Mg-Zn type |
US4589932A (en) * | 1983-02-03 | 1986-05-20 | Aluminum Company Of America | Aluminum 6XXX alloy products of high strength and toughness having stable response to high temperature artificial aging treatments and method for producing |
US4614552A (en) * | 1983-10-06 | 1986-09-30 | Alcan International Limited | Aluminum alloy sheet product |
JPS6082643A (ja) * | 1983-10-07 | 1985-05-10 | Showa Alum Corp | 延性に優れた耐食性高力アルミニウム合金 |
FR2568590B1 (fr) * | 1984-07-31 | 1987-02-27 | Cegedur | Alliage d'aluminium type a-sg a haute resistance pour produits files ou matrices |
JPH0570907A (ja) * | 1991-04-30 | 1993-03-23 | Sumitomo Light Metal Ind Ltd | 成形加工用アルミニウム合金材の製造法 |
FR2683828B1 (fr) * | 1991-11-18 | 1994-08-26 | Cezus Cie Europ Zirconium | Procede de fabrication de toles a structure homogene en zircaloy 2 ou en zircaloy 4. |
JPH06136478A (ja) * | 1992-10-23 | 1994-05-17 | Kobe Steel Ltd | 成形加工性に優れた焼付硬化型Al合金板及びその製造方法 |
US5616189A (en) * | 1993-07-28 | 1997-04-01 | Alcan International Limited | Aluminum alloys and process for making aluminum alloy sheet |
FR2710657B1 (fr) * | 1993-09-28 | 1995-11-10 | Pechiney Rhenalu | Procédé de désensibilisation à la corrosion intercristalline des alliages d'Al séries 2000 et 6000 et produits correspondants. |
US5503690A (en) * | 1994-03-30 | 1996-04-02 | Reynolds Metals Company | Method of extruding a 6000-series aluminum alloy and an extruded product therefrom |
-
1994
- 1994-10-25 FR FR9413047A patent/FR2726007B1/fr not_active Expired - Fee Related
-
1995
- 1995-10-24 DE DE69502508T patent/DE69502508T2/de not_active Revoked
- 1995-10-24 KR KR1019970702642A patent/KR970707314A/ko not_active Application Discontinuation
- 1995-10-24 US US08/809,704 patent/US5858134A/en not_active Expired - Lifetime
- 1995-10-24 WO PCT/FR1995/001412 patent/WO1996012829A1/fr not_active Application Discontinuation
- 1995-10-24 EP EP95936606A patent/EP0787217B1/fr not_active Revoked
- 1995-10-24 CA CA002202184A patent/CA2202184A1/fr not_active Abandoned
- 1995-10-24 JP JP8513700A patent/JPH10512924A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9612829A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1143027B1 (fr) * | 2000-04-07 | 2008-06-11 | Alcan Rhenalu | Procédé de fabrication d'éléments de structure d'avions en alliage d'aluminium Al-Si-Mg |
FR2856368A1 (fr) | 2003-06-18 | 2004-12-24 | Pechiney Rhenalu | Piece de peau de carrosserie automobile en tole d'alliage ai-si-mg fixee sur structure acier |
EP3214191A1 (fr) | 2016-03-04 | 2017-09-06 | Impol 2000, d. d. | Alliage d'aluminium al-mg-si à haute résistance et son procédé de fabrication |
CN111961928A (zh) * | 2020-09-07 | 2020-11-20 | 四川三星新材料科技股份有限公司 | 一种汽车用高硅铝合金型材的生产工艺方法 |
Also Published As
Publication number | Publication date |
---|---|
JPH10512924A (ja) | 1998-12-08 |
US5858134A (en) | 1999-01-12 |
WO1996012829A1 (fr) | 1996-05-02 |
FR2726007B1 (fr) | 1996-12-13 |
EP0787217B1 (fr) | 1998-05-13 |
DE69502508D1 (de) | 1998-06-18 |
CA2202184A1 (fr) | 1996-05-02 |
KR970707314A (ko) | 1997-12-01 |
FR2726007A1 (fr) | 1996-04-26 |
DE69502508T2 (de) | 1998-09-10 |
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