EP3294918B8 - Vierstufiges thermisches alterungsverfahren zur verbesserung der umweltunterstützten rissbeständigkeit von aluminiumlegierungen der 7xxx-serie - Google Patents

Vierstufiges thermisches alterungsverfahren zur verbesserung der umweltunterstützten rissbeständigkeit von aluminiumlegierungen der 7xxx-serie Download PDF

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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
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English (en)
French (fr)
Other versions
EP3294918A1 (de
EP3294918B1 (de
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/de
Application granted granted Critical
Publication of EP3294918B1 publication Critical patent/EP3294918B1/de
Publication of EP3294918B8 publication Critical patent/EP3294918B8/de
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
EP16831924.2A 2016-08-04 2016-11-30 Vierstufiges thermisches alterungsverfahren zur verbesserung der umweltunterstützten rissbeständigkeit von aluminiumlegierungen der 7xxx-serie Not-in-force EP3294918B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201621026704 2016-08-04
PCT/IN2016/000280 WO2018025275A1 (en) 2016-08-04 2016-11-30 Four-step thermal aging method for improving environmentally assisted cracking resistance of 7xxx series aluminium alloys

Publications (3)

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

Family

ID=57956342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16831924.2A Not-in-force EP3294918B8 (de) 2016-08-04 2016-11-30 Vierstufiges thermisches alterungsverfahren zur verbesserung der umweltunterstützten rissbeständigkeit von aluminiumlegierungen der 7xxx-serie

Country Status (3)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112218963B (zh) * 2018-07-02 2022-09-20 奥托福克斯两合公司 铝合金以及由这种合金制造的过老化的铝合金产品

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
IL156386A0 (en) * 2000-12-21 2004-01-04 Alcoa Inc Aluminum alloy products and artificial aging method
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
EP3294918A1 (de) 2018-03-21
US20190153578A1 (en) 2019-05-23
WO2018025275A1 (en) 2018-02-08
EP3294918B1 (de) 2018-11-28

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