EP3294918B8 - Procédé de vieillissement thermique à quatre étapes pour l'amélioration de la résistance à la fissuration influencée par l'environnement d'alliages d'aluminium de série 7xxx - Google Patents

Procédé de vieillissement thermique à quatre étapes pour l'amélioration de la résistance à la fissuration influencée par l'environnement d'alliages d'aluminium de série 7xxx Download PDF

Info

Publication number
EP3294918B8
EP3294918B8 EP16831924.2A EP16831924A EP3294918B8 EP 3294918 B8 EP3294918 B8 EP 3294918B8 EP 16831924 A EP16831924 A EP 16831924A EP 3294918 B8 EP3294918 B8 EP 3294918B8
Authority
EP
European Patent Office
Prior art keywords
cracking resistance
aluminium alloys
thermal aging
aging method
7xxx series
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.)
Not-in-force
Application number
EP16831924.2A
Other languages
German (de)
English (en)
Other versions
EP3294918B1 (fr
EP3294918A1 (fr
Inventor
designation of the inventor has not yet been filed The
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.)
Indian Institute of Technology Bombay
Godrej and Boyce Manufacturing Co Ltd
Original Assignee
Indian Institute of Technology Bombay
Godrej and Boyce Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Indian Institute of Technology Bombay, Godrej and Boyce Manufacturing Co Ltd filed Critical Indian Institute of Technology Bombay
Publication of EP3294918A1 publication Critical patent/EP3294918A1/fr
Publication of EP3294918B1 publication Critical patent/EP3294918B1/fr
Application granted granted Critical
Publication of EP3294918B8 publication Critical patent/EP3294918B8/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22F1/053—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 zinc 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
    • C22C21/10—Alloys based on aluminium with zinc 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
    • C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
EP16831924.2A 2016-08-04 2016-11-30 Procédé de vieillissement thermique à quatre étapes pour l'amélioration de la résistance à la fissuration influencée par l'environnement d'alliages d'aluminium de série 7xxx Not-in-force EP3294918B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201621026704 2016-08-04
PCT/IN2016/000280 WO2018025275A1 (fr) 2016-08-04 2016-11-30 Procédé de vieillissement thermique à quatre étapes pour l'amélioration de la résistance à la fissuration influencée par l'environnement d'alliages d'aluminium de série 7xxx

Publications (3)

Publication Number Publication Date
EP3294918A1 EP3294918A1 (fr) 2018-03-21
EP3294918B1 EP3294918B1 (fr) 2018-11-28
EP3294918B8 true EP3294918B8 (fr) 2019-02-27

Family

ID=57956342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16831924.2A Not-in-force EP3294918B8 (fr) 2016-08-04 2016-11-30 Procédé de vieillissement thermique à quatre étapes pour l'amélioration de la résistance à la fissuration influencée par l'environnement d'alliages d'aluminium de série 7xxx

Country Status (3)

Country Link
US (1) US20190153578A1 (fr)
EP (1) EP3294918B8 (fr)
WO (1) WO2018025275A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2765103C1 (ru) * 2018-07-02 2022-01-25 Отто Фукс - Коммандитгезельшафт Алюминиевый сплав и перестаренное изделие из такого алюминиевого сплава

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477292A (en) 1973-10-26 1984-10-16 Aluminum Company Of America Three-step aging to obtain high strength and corrosion resistance in Al-Zn-Mg-Cu alloys
US4431467A (en) 1982-08-13 1984-02-14 Aluminum Company Of America Aging process for 7000 series aluminum base alloys
JP3705320B2 (ja) * 1997-04-18 2005-10-12 株式会社神戸製鋼所 耐食性に優れる高強度熱処理型７０００系アルミニウム合金
AUPQ485399A0 (en) 1999-12-23 2000-02-03 Commonwealth Scientific And Industrial Research Organisation Heat treatment of age-hardenable aluminium alloys
CN1489637A (zh) * 2000-12-21 2004-04-14 �Ƹ��� 铝合金产品及人工时效方法
JP2003213387A (ja) * 2002-01-22 2003-07-30 Mitsubishi Heavy Ind Ltd 航空機用ロール成形部品の製造方法
JP5343333B2 (ja) * 2007-07-06 2013-11-13 日本軽金属株式会社 耐応力腐食割れ性に優れた高強度アルミニウム合金材の製造方法
US8333853B2 (en) 2009-01-16 2012-12-18 Alcoa Inc. Aging of aluminum alloys for improved combination of fatigue performance and strength
US9249487B2 (en) 2013-03-14 2016-02-02 Alcoa Inc. Methods for artificially aging aluminum-zinc-magnesium alloys, and products based on the same
US9765419B2 (en) 2014-03-12 2017-09-19 Alcoa Usa Corp. Methods for artificially aging aluminum-zinc-magnesium alloys, and products based on the same
CN104962847B (zh) * 2015-07-16 2016-11-16 中南大学 一种提高7系合金厚板均匀性和抗腐蚀性能的热处理工艺

Also Published As

Publication number Publication date
EP3294918B1 (fr) 2018-11-28
EP3294918A1 (fr) 2018-03-21
WO2018025275A1 (fr) 2018-02-08
US20190153578A1 (en) 2019-05-23

Similar Documents

Publication Publication Date Title
EP3213863A4 (fr) Procédé de fusion électrique pour la formation d'une structure métallique
EP3344787A4 (fr) Alliages d'aluminium
EP3186404A4 (fr) Appareil d'affinage des alliages d'aluminium fondu
ZA201805016B (en) Method for improving quality of aluminum resistance spot welding
GB2551868B (en) Colouring method for wrought aluminium alloy welded joint colour metallography
EP3097216A4 (fr) Alliages d'aluminium 6xxx
EP3294917A4 (fr) Alliages d'aluminium de série 7xxx corroyés épais améliorés et procédés de production correspondants
EP3330029A4 (fr) Procédé de production de structure en aluminium
EP3880857A4 (fr) Alliages d'aluminium 7xxx améliorés
EP3750646A4 (fr) Procédé de formation d'une pièce en feuille d'alliage d'aluminium
HUE061200T2 (hu) Eljárás fémes, felületek, különösen alumíniumanyagok szilárdan tapadó bevonására
EP3524666A4 (fr) Procédé utilisant l'allulose pour améliorer l'arrière-goût de boissons alcoolisées
EP3309278A4 (fr) Procédé de fabrication d'une feuille d'aluminium électrolytique
HUE051285T2 (hu) Eljárás hegesztett alkatrészek gyártására mely magában foglalja 6xxx sorozatú megmunkált alumínium ötvözet komponensek ívhegesztését 5xxx sorozatú alumínium töltõ huzal felhasználásával
EP3368702A4 (fr) Alliages d'aluminium 7xxx corroyés améliorés, et procédés de production associés
EP3135790A4 (fr) Procédé de fabrication d'élément en alliage d'aluminium et élément en alliage d'aluminium l'utilisant
EP3441487A4 (fr) Alliage de cuivre, et procédé de fabrication de celui-ci
ZA201902685B (en) Method for making deformed semi-finished products from aluminium alloys
EP3384059C0 (fr) Alliage d'extrusion d'aluminium approprié pour des composants décapés et anodisés
EP3358025A4 (fr) Alliage très résistant à base d'aluminium et procédé de fabrication d'articles à base de ce matériau
EP3350355A4 (fr) Procédé de fabrication de profilés extrudés pouvant être anodisés comportant des surfaces à haut brillant, lesdits profilés étant extrudés à partir d'un alliage d'aluminium durcissable par vieillissement pouvant être recristallisé après déformation à froid, par exemple un alliage 6xxx ou 7xxx
GB2547853B8 (en) Friction-stir joining device for aluminium alloy plates having thickness of 1mm or less
EP3294918B8 (fr) Procédé de vieillissement thermique à quatre étapes pour l'amélioration de la résistance à la fissuration influencée par l'environnement d'alliages d'aluminium de série 7xxx
GB2555159B (en) Method of making machine component with aluminium alloy under temperature-limited forming conditions
EP3522193A4 (fr) Élément en aluminium pour électrodes et procédé de production d'un élément en aluminium pour électrodes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20171106

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20180607

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

GRAT Correction requested after decision to grant or after decision to maintain patent in amended form

Free format text: ORIGINAL CODE: EPIDOSNCDEC

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1070314

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181215

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: GODREJ & BOYCE MFG. CO. LTD.

Owner name: INDIAN INSTITUTE OF TECHNOLOGY, BOMBAY

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016007664

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602016007664

Country of ref document: DE

Representative=s name: GRAMM, LINS & PARTNER PATENT- UND RECHTSANWAEL, DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNG B8

REG Reference to a national code

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNGEN

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181128

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1070314

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181128

RIN2 Information on inventor provided after grant (corrected)

Inventor name: KRISHNAN AJAY

Inventor name: VNGARANAHALLI SRINIVASAN RAJA

Inventor name: VAIDYA SURENDRA MURALIDHAR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190328

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190228

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190228

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190117

Year of fee payment: 3

Ref country code: DE

Payment date: 20181228

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190328

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016007664

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

26N No opposition filed

Effective date: 20190829

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602016007664

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181128

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20161130

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181128

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20201130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201130