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WO2017075217A1 - Alliages d'aluminium 7xxx corroyés améliorés, et procédés de production associés - Google Patents

Alliages d'aluminium 7xxx corroyés améliorés, et procédés de production associés Download PDF

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Publication number
WO2017075217A1
WO2017075217A1 PCT/US2016/059120 US2016059120W WO2017075217A1 WO 2017075217 A1 WO2017075217 A1 WO 2017075217A1 US 2016059120 W US2016059120 W US 2016059120W WO 2017075217 A1 WO2017075217 A1 WO 2017075217A1
Authority
WO
WIPO (PCT)
Prior art keywords
7xxx aluminum
wrought 7xxx
aluminum alloy
another embodiment
new wrought
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.)
Ceased
Application number
PCT/US2016/059120
Other languages
English (en)
Inventor
Xinyan Yan
James Daniel Bryant
Jen C. Lin
Wenping Zhang
Eider SIMIELLI
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.)
Alcoa Corp
Original Assignee
Alcoa Corp
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 Alcoa Corp filed Critical Alcoa Corp
Priority to CA3003158A priority Critical patent/CA3003158C/fr
Priority to EP16860785.1A priority patent/EP3368702B1/fr
Priority to CN201680070268.XA priority patent/CN108291280B/zh
Publication of WO2017075217A1 publication Critical patent/WO2017075217A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C22C21/10—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
    • C22F1/04—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

Definitions

  • Aluminum alloys are useful in a variety of applications. However, improving one property of an aluminum alloy without degrading another property is elusive. For example, it is difficult to increase the strength or corrosion resistance of a wrought 7xxx aluminum alloy without affecting other properties.
  • a new wrought 7xxx aluminum alloy includes at least 1.35 wt. % Mg. In another embodiment, a new wrought 7xxx aluminum alloy includes at least 1.40 wt. % Mg. In yet another embodiment, a new wrought 7xxx aluminum alloy includes at least 1.45 wt. % Mg. In another embodiment, a new wrought 7xxx aluminum alloy includes at least 1.50 wt. % Mg.
  • the combined amount of zinc and magnesium in a new wrought 7xxx aluminum alloy is not greater than 6.50 wt. % (i.e., wt. % Zn + wt. % Mg ⁇ 6.50 wt. %). In another embodiment, the combined amount of zinc and magnesium in a new wrought 7xxx aluminum alloy is not greater than 6.25 wt. % (i.e., wt. % Zn + wt. % Mg ⁇ 6.25 wt. %). In yet another embodiment, the combined amount of zinc and magnesium in a new wrought 7xxx aluminum alloy is not greater than 6.00 wt. % (i.e., wt. % Zn + wt.
  • a new wrought 7xxx aluminum alloy includes not greater than 0.90 wt. % Cu. In yet another embodiment, a new wrought 7xxx aluminum alloy includes not greater than 0.85 wt. % Cu. In another embodiment, a new wrought 7xxx aluminum alloy includes not greater than 0.80 wt. % Cu. In one embodiment, a new wrought 7xxx aluminum alloy includes at least 0.40 wt. % Cu. In another embodiment, a new wrought 7xxx aluminum alloy includes at least 0.45 wt. % Cu. In yet another embodiment, a new wrought 7xxx aluminum alloy includes at least 0.50 wt. % Cu. In another embodiment, a new wrought 7xxx aluminum alloy includes at least 0.55 wt. % Cu. In yet another embodiment, a new wrought 7xxx aluminum alloy includes at least 0.60 wt. % Cu.
  • the new wrought 7xxx aluminum alloys generally include from 0.06 to 0.20 wt. % Zr. As shown by the below data, the combination of vanadium and zirconium may facilitate, for instance, improved fatigue failure resistance properties.
  • a new wrought 7xxx aluminum alloy includes not greater than 0.18 wt. % Zr.
  • a new wrought 7xxx aluminum alloy includes not greater than 0.16 wt. % Zr.
  • a new wrought 7xxx aluminum alloy includes not greater than 0.15 wt. % Zr.
  • a new wrought 7xxx aluminum alloy includes not greater than 0.14 wt. % Zr.
  • the total amount of vanadium plus zirconium should be controlled to restrict formation of a high volume fraction of constituent particles (e.g., a high volume fraction of Al 3 Zr, AI23V4, AI 7 V and/or A1 10 V constituent particles).
  • the total amount of vanadium plus zirconium does not exceed 0.23 wt. % V + Zr.
  • the total amount of vanadium plus zirconium does not exceed 0.22 wt. % V + Zr.
  • the total amount of vanadium plus zirconium does not exceed 0.21 wt. % V + Zr.
  • the total amount of vanadium plus zirconium does not exceed 0.20 wt.
  • the quench insensitivity of the new wrought 7xxx aluminum alloys may facilitate improved strength. Likewise, when using a hot quench media, a new wrought 7xxx aluminum alloy may realize less distortion.
  • the new wrought 7xxx aluminum alloys may be post-solution heat treatment quenched with any applicable fluid or media.
  • a new wrought 7xxx aluminum alloy is water quenched (cold water quenched, hot water quenched, or boiling water quenched).
  • the new wrought 7xxx aluminum alloy is hot or boiling water quenched.
  • a hot water quench is a quenching using water having a temperature of from 150°F to boiling (212°F at standard temperature and pressure).
  • a boiling water quench uses boiling water.
  • a boiling water quench is a species of the hot water quench genus. As shown by the below data, use of a hot water quench (including a boiling water quench) may facilitate improved SCC resistance.

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)
  • Continuous Casting (AREA)
  • Forging (AREA)

Abstract

On décrit de nouveaux alliages d'aluminium 7xxx corroyés, qui comprennent généralement 3,75 à 8,0% en poids de Zn; 1,25 à 3,0% en poids de Mg, le pourcentage en poids de Zn étant supérieur à celui de Mg; 0,35 à 1,35% en poids de Cu; 0,04 à 0,20% en poids de V; 0,06 à 0,20% en poids de Zr (V+Zr ≤ 0,23% en poids); 0,01 à 0,25% en poids de Ti; jusqu'à 0,50% en poids de Mn; jusqu'à 0,40% en poids de Cr; jusqu'à 0,35% en poids de Fe; et jusqu'à 0,25% en poids de Si, le solde étant constitué d'aluminium et d'impuretés. Les alliages d'aluminium 7xxx corroyés comprennent au plus 0,10% en poids d'une quelconque impureté individuelle, et au plus 0,35% en poids de la totalité des impuretés.
PCT/US2016/059120 2015-10-29 2016-10-27 Alliages d'aluminium 7xxx corroyés améliorés, et procédés de production associés Ceased WO2017075217A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA3003158A CA3003158C (fr) 2015-10-29 2016-10-27 Alliages d'aluminium 7xxx corroyes ameliores, et procedes de production associes
EP16860785.1A EP3368702B1 (fr) 2015-10-29 2016-10-27 Alliages d'aluminium 7xxx corroyés améliorés, et procédés de production associés
CN201680070268.XA CN108291280B (zh) 2015-10-29 2016-10-27 改进的锻制7xxx铝合金及其制备方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562248165P 2015-10-29 2015-10-29
US62/248,165 2015-10-29

Publications (1)

Publication Number Publication Date
WO2017075217A1 true WO2017075217A1 (fr) 2017-05-04

Family

ID=58631907

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/059120 Ceased WO2017075217A1 (fr) 2015-10-29 2016-10-27 Alliages d'aluminium 7xxx corroyés améliorés, et procédés de production associés

Country Status (6)

Country Link
US (1) US20170121795A1 (fr)
EP (1) EP3368702B1 (fr)
CN (1) CN108291280B (fr)
CA (1) CA3003158C (fr)
HU (1) HUE063975T2 (fr)
WO (1) WO2017075217A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107619976A (zh) * 2017-08-09 2018-01-23 中车青岛四方机车车辆股份有限公司 一种Al‑Zn‑Mg合金及其制备方法
EP3831969A1 (fr) * 2019-12-05 2021-06-09 Kaiser Aluminum Fabricated Products, LLC Alliage 7xxx trempable sous presse à haute résistance

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019089736A1 (fr) 2017-10-31 2019-05-09 Arconic Inc. Alliages d'aluminium améliorés et leurs procédés de production
WO2020097169A1 (fr) 2018-11-07 2020-05-14 Arconic Inc. Alliages d'aluminium-lithium de la série 2xxx
BR112021004434B1 (pt) * 2018-11-12 2024-01-02 Novelis Koblenz Gmbh Produto de liga de alumínio da série 7xxx
WO2020172046A1 (fr) 2019-02-20 2020-08-27 Howmet Aerospace Inc. Alliages d'aluminium-magnésium-zinc améliorés

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US20060000094A1 (en) 2004-07-01 2006-01-05 Garesche Carl E Forged aluminum vehicle wheel and associated method of manufacture and alloy
US20080173377A1 (en) * 2006-07-07 2008-07-24 Aleris Aluminum Koblenz Gmbh Aa7000-series aluminum alloy products and a method of manufacturing thereof
US20090226343A1 (en) * 2005-08-16 2009-09-10 Corus Aluminium Walzprodukte Gmbh High strength weldable al-mg alloy
US20120048390A1 (en) * 2010-08-25 2012-03-01 Spirit Aerosystems, Inc. Wrought and cast aluminum alloy with improved resistance to mechanical property degradation
US20150068649A1 (en) * 2008-06-24 2015-03-12 Aleris Aluminum Koblenz Gmbh Al-Zn-Mg Alloy Product with Reduced Quench Sensitivity
WO2015167916A1 (fr) 2014-04-30 2015-11-05 Alcoa Inc. Alliages de moulage d'aluminium 7xx, et leurs procédés de fabrication

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050034794A1 (en) * 2003-04-10 2005-02-17 Rinze Benedictus High strength Al-Zn alloy and method for producing such an alloy product
US20060000094A1 (en) 2004-07-01 2006-01-05 Garesche Carl E Forged aluminum vehicle wheel and associated method of manufacture and alloy
US20090226343A1 (en) * 2005-08-16 2009-09-10 Corus Aluminium Walzprodukte Gmbh High strength weldable al-mg alloy
US20080173377A1 (en) * 2006-07-07 2008-07-24 Aleris Aluminum Koblenz Gmbh Aa7000-series aluminum alloy products and a method of manufacturing thereof
US20150068649A1 (en) * 2008-06-24 2015-03-12 Aleris Aluminum Koblenz Gmbh Al-Zn-Mg Alloy Product with Reduced Quench Sensitivity
US20120048390A1 (en) * 2010-08-25 2012-03-01 Spirit Aerosystems, Inc. Wrought and cast aluminum alloy with improved resistance to mechanical property degradation
WO2015167916A1 (fr) 2014-04-30 2015-11-05 Alcoa Inc. Alliages de moulage d'aluminium 7xx, et leurs procédés de fabrication

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See also references of EP3368702A4

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107619976A (zh) * 2017-08-09 2018-01-23 中车青岛四方机车车辆股份有限公司 一种Al‑Zn‑Mg合金及其制备方法
EP3831969A1 (fr) * 2019-12-05 2021-06-09 Kaiser Aluminum Fabricated Products, LLC Alliage 7xxx trempable sous presse à haute résistance
US12319989B2 (en) 2019-12-05 2025-06-03 Kaiser Aluminum Fabricated Products, Llc High strength press quenchable 7XXX alloy

Also Published As

Publication number Publication date
EP3368702B1 (fr) 2023-08-16
HUE063975T2 (hu) 2024-02-28
CN108291280A (zh) 2018-07-17
EP3368702A4 (fr) 2019-07-17
CA3003158A1 (fr) 2017-05-04
CA3003158C (fr) 2020-07-07
CN108291280B (zh) 2021-05-11
EP3368702C0 (fr) 2023-08-16
EP3368702A1 (fr) 2018-09-05
US20170121795A1 (en) 2017-05-04

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