WO2022061011A1 - Alliages d'aluminium de la série 7xxx à haute résistance et peu sensibles à la trempe et leurs procédés de fabrication - Google Patents

Alliages d'aluminium de la série 7xxx à haute résistance et peu sensibles à la trempe et leurs procédés de fabrication Download PDF

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Publication number
WO2022061011A1
WO2022061011A1 PCT/US2021/050709 US2021050709W WO2022061011A1 WO 2022061011 A1 WO2022061011 A1 WO 2022061011A1 US 2021050709 W US2021050709 W US 2021050709W WO 2022061011 A1 WO2022061011 A1 WO 2022061011A1
Authority
WO
WIPO (PCT)
Prior art keywords
aluminum alloy
alloy product
product
rolled
heat
Prior art date
Application number
PCT/US2021/050709
Other languages
English (en)
Inventor
Yudie YUAN
Ganesh Bhaskaran
Anna E. JANOFF
Cedric Wu
Rajeev G. Kamat
David LEYVRAZ
Original Assignee
Novelis Inc.
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 Novelis Inc. filed Critical Novelis Inc.
Priority to CA3193263A priority Critical patent/CA3193263A1/fr
Priority to JP2023517818A priority patent/JP2023542330A/ja
Priority to EP21789984.8A priority patent/EP4214346A1/fr
Priority to MX2023003128A priority patent/MX2023003128A/es
Priority to US18/044,262 priority patent/US20230313353A1/en
Priority to CN202180063250.8A priority patent/CN116490634A/zh
Priority to KR1020237008299A priority patent/KR20230048631A/ko
Publication of WO2022061011A1 publication Critical patent/WO2022061011A1/fr

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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
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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

  • the heat-treated aluminum alloy product may exhibit precipitate- free zone widths from 10 nm to 13 nm when a quench rate is less than or about 125 °C/s.
  • the product may include a heat-treated aluminum alloy product having superior corrosion resistance.
  • FIG. 13 provides an illustrative graph showing the temperature profile as a function of time for making aluminum alloy products according to some embodiments.
  • a plate generally has a thickness of greater than about 15 mm.
  • a plate may refer to an aluminum product having a thickness of greater than about 15 mm, greater than about 20 mm, greater than about 25 mm, greater than about 30 mm, greater than about 35 mm, greater than about 40 mm, greater than about 45 mm, greater than about 50 mm, or greater than about 100 mm.
  • ambient conditions can include temperatures of about room temperature, relative humidity of from about 20% to about 100%, and barometric pressure of from about 975 millibar (mbar) to about 1050 mbar.
  • relative humidity can be about 20%, about 21%, about 22%, about 23%, about 24%, about 25%, about 26%, about 27%, about 28%, about 29%, about 30%, about 31%, about 32%, about 33%, about 34%, about 35%, about 36%, about 37%, about 38%, about 39%, about 40%, about 41%, about 42%, about 43%, about 44%, about 45%, about 46%, about 47%, about 48%, about 49%, about 50%, about 51%, about 52%, about 53%, about 54%, about 55%, about 56%, about 57%, about 58%, about 59%, about 60%, about 61%, about 62%, about 63%, about 64%, about 65%, about 66%, about 67%,
  • the aluminum alloy may have an elemental composition as provided in Table 3.
  • the aluminum alloy may have an elemental composition as provided in Table 4.
  • the alloy may include from 0.10% to 0.11%, from 0.11% to 0.12%, from 0.12% to 0.13%, from 0.13% to 0.14%, from 0.14% to 0.15%, from 0.15% to 0.16%, from 0.16% to 0.17%, from 0.17% to 0.18%, from 0.18% to 0.19%, from 0.19% to 0.20%, from 0.20% to 0.21%, from 0.21% to 0.22%, from 0.22% to 0.23%, from 0.23% to 0.24%, from 0.24% to 0.25%, from 0.25% to 0.26%, from 0.26% to 0.27%, from 0.27% to 0.28%, from 0.28% to 0.29%, from 0.29% to 0.30%, from 0.30% to 0.35%, from 0.35% to 0.40%, from 0.40% to 0.45%, from 0.45% to 0.50%, from 0.50% to 0.55%, from 0.55% to 0.60%, from 0.60% to 0.65%, from 0.65% to 0.70%, from 0.10%
  • the combined content of Zn, Cu, and Mg may be from 5.00% to 5.50%, from 5.50% to 6.00%, from 6.00% to 6.50%, from 6.50% to 7.00%, from 7.00% to 7.50%, from 7.50% to 8.00%, from 8.00% to 8.50%, from 8.50% to 9.00%, from 9.00% to 9.50%, from 9.50% to 10.00%, from 10.00% to 10.50%, from 10.50% to 11.00%, from 11.00% to 11.50%, from 11.50% to 12.00%, from 12.00% to 12.50%, from 12.50% to 13.00%, from 13.00% to 13.50%, or from 13.50% to 14.00%. All are expressed in wt.%.
  • the alloy may include from 0.01% to 0.02%, from 0.02% to 0.03%, from 0.03% to 0.04%, from 0.04% to 0.05%, from 0.05% to 0.06%, from 0.06% to 0.07%, from 0.07% to 0.08%, from 0.08% to 0.09%, from 0.09% to 0.10%, from 0.10% to 0.11%, from 0.11% to 0.12%, from 0.12% to 0.13%, from 0.13% to 0.14%, or from 0.14% to 0.15% Ti. In some cases, Ti may not be present in the alloy (i.e., 0.0%). All are expressed in wt.%.
  • the depth of corrosion may increase. Limiting corrosion may be desirable and thus a lower corrosion depth may be desirable as well.
  • corrosion 420 may extend to an average depth of about 50 pm into the aluminum alloy product and may correspond to pitting corrosion, for example.
  • the quench rate is slowed to 350 °C/s
  • corrosion 420 may extend even further into the aluminum alloy product to an average depth of about 75 pm, and again may correspond to pitting corrosion.
  • the corrosion morphology changes to intergranular corrosion, the corrosion depth may continue to increase.
  • Graph 415 may indicate similar quenching insensitivity for another aluminum alloy product 4B as described herein. Similar to the aluminum alloy product 4A for which data are shown in graph 410, corrosion morphology for the aluminum alloy product represented by graph 415 may not change from pitting corrosion to intergranular corrosion until a quench rate of or below 5 °C/s. Unexpectedly, corrosion depths may decrease in some cases as the quench rate decreases.
  • aluminum alloy product 5A may exhibit yield strengths of about 572 MPa and 553 MPa, respectively, and aluminum alloy product 5B may exhibit yield strengths of about 575 MPa and 569 MPa, respectively.
  • aluminum alloy product C may exhibit yield strengths of about 524 and 509 at quench rates of 350 °C/s and 50 °C/s, respectively.
  • the improved yield strength of aluminum alloy products 5 A and 5B may be even more evident at low quench rates, such as the quench rate of 5 °C/s.
  • FIG. 11 A depicts precipitate-free zones 1010 exhibited after aluminum alloy product 5A is quenched at 550 °C/s.
  • FIGs. 1 IB and 11C depict precipitate-free zones 1110 exhibited after aluminum alloy product 5 A is quenched at 150 °C/s and 5 °C/s, respectively. While the precipitate-free zones 1110 of aluminum alloy product 5A may become larger as the quench rate is slowed, the width of the precipitate-free zones may be less than that of precipitate-free zones 1010 exhibited by aluminum alloy product C quenched at the same rate. This is also depicted by the data provided in graph 900 of FIG. 9.
  • Illustration 23 is the method of any previous or subsequent illustration, further comprising heating the heat-treated aluminum alloy product to a temperature from 100 °C to 170 °C and maintaining at the temperature for 12 hours to 30 hours.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Continuous Casting (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne des procédés de fabrication d'un produit en alliage d'aluminium. Le procédé comprend le chauffage d'un produit en alliage d'aluminium laminé à une première température de 400 °C à 525 °C. Le produit en alliage d'aluminium laminé peut comprendre un alliage d'aluminium de la série 7xxx. Le procédé comprend également le maintien du produit en alliage d'aluminium laminé à la première température ou à moins de 10 °C de la première température pendant une durée de 15 secondes à 30 minutes. Le procédé comprend également la trempe du produit en alliage d'aluminium laminé à une vitesse de trempe de 0,5 °C/s à 125 °C/s, ce qui permet de produire un produit en alliage d'aluminium traité thermiquement. Le produit en alliage d'aluminium traité thermiquement présente une valeur de taux de déformation de 0,3 à 0,8. La valeur de taux de déformation est déterminée selon une méthode d'essai de la norme ASTM G129 et/ou ASTM G139.
PCT/US2021/050709 2020-09-17 2021-09-16 Alliages d'aluminium de la série 7xxx à haute résistance et peu sensibles à la trempe et leurs procédés de fabrication WO2022061011A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA3193263A CA3193263A1 (fr) 2020-09-17 2021-09-16 Alliages d'aluminium de la serie 7xxx a haute resistance et peu sensibles a la trempe et leurs procedes de fabrication
JP2023517818A JP2023542330A (ja) 2020-09-17 2021-09-16 高強度で焼入れ感受性の低い７ｘｘｘ系アルミニウム合金及びその製造方法
EP21789984.8A EP4214346A1 (fr) 2020-09-17 2021-09-16 Alliages d'aluminium de la série 7xxx à haute résistance et peu sensibles à la trempe et leurs procédés de fabrication
MX2023003128A MX2023003128A (es) 2020-09-17 2021-09-16 Aleaciones de aluminio de la serie 7xxx de alta resistencia y sensibles al bajo enfriamiento y metodos de fabricacion.
US18/044,262 US20230313353A1 (en) 2020-09-17 2021-09-16 High strength and low quench sensitive 7xxx series aluminum alloys and methods of making
CN202180063250.8A CN116490634A (zh) 2020-09-17 2021-09-16 高强度和低淬火敏感性7xxx系列铝合金及其制备方法
KR1020237008299A KR20230048631A (ko) 2020-09-17 2021-09-16 고강도 및 낮은 켄칭 민감성 7xxx 시리즈 알루미늄 합금 및 제조 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202062706906P 2020-09-17 2020-09-17
US62/706,906 2020-09-17

Publications (1)

Publication Number Publication Date
WO2022061011A1 true WO2022061011A1 (fr) 2022-03-24

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PCT/US2021/050709 WO2022061011A1 (fr) 2020-09-17 2021-09-16 Alliages d'aluminium de la série 7xxx à haute résistance et peu sensibles à la trempe et leurs procédés de fabrication

Country Status (8)

Country Link
US (1) US20230313353A1 (fr)
EP (1) EP4214346A1 (fr)
JP (1) JP2023542330A (fr)
KR (1) KR20230048631A (fr)
CN (1) CN116490634A (fr)
CA (1) CA3193263A1 (fr)
MX (1) MX2023003128A (fr)
WO (1) WO2022061011A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115161524A (zh) * 2022-09-08 2022-10-11 北京科技大学 一种抗应力腐蚀高强铝合金及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117551950B (zh) * 2024-01-11 2024-04-09 中北大学 一种具有优异长期热稳定性的Al-Cu-Mg-Ag合金及其热处理工艺

Citations (5)

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Publication number Priority date Publication date Assignee Title
US20170081749A1 (en) * 2014-03-17 2017-03-23 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Aluminum alloy sheet for structural components
CN107881444A (zh) * 2016-09-29 2018-04-06 北京有色金属研究总院 一种超大规格铝合金板材的制造方法
US20180202031A1 (en) 2017-01-17 2018-07-19 Novelis Inc. Rapid aging of high strength 7xxx aluminum alloys and methods of making the same
EP3521466A1 (fr) * 2015-10-30 2019-08-07 Novelis Inc. Alliages d'aluminium 7xxx de résistance élevée et leurs procédés de préparation
WO2019159810A1 (fr) * 2018-02-19 2019-08-22 株式会社Uacj Procédé de fabrication d'un élément en alliage d'aluminium

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US20170081749A1 (en) * 2014-03-17 2017-03-23 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Aluminum alloy sheet for structural components
EP3521466A1 (fr) * 2015-10-30 2019-08-07 Novelis Inc. Alliages d'aluminium 7xxx de résistance élevée et leurs procédés de préparation
CN107881444A (zh) * 2016-09-29 2018-04-06 北京有色金属研究总院 一种超大规格铝合金板材的制造方法
US20180202031A1 (en) 2017-01-17 2018-07-19 Novelis Inc. Rapid aging of high strength 7xxx aluminum alloys and methods of making the same
WO2019159810A1 (fr) * 2018-02-19 2019-08-22 株式会社Uacj Procédé de fabrication d'un élément en alliage d'aluminium
DE112019000856T5 (de) * 2018-02-19 2020-10-29 Uacj Corporation Verfahren zur Herstellung von Aluminiumlegierungsbauelementen

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"Standard Test Method for Standard Test Method for Plastic Strain Ratio Plastic Strain Ratio r r for Sheet Metal for Sheet Metal - E517", 31 December 2000, article ASTM STANDARDS: "Standard Test Method for Standard Test Method for Plastic Strain Ratio Plastic Strain Ratio r r for Sheet Metal for Sheet Metal - E517", pages: 1 - 8, XP055863250 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115161524A (zh) * 2022-09-08 2022-10-11 北京科技大学 一种抗应力腐蚀高强铝合金及其制备方法

Also Published As

Publication number Publication date
JP2023542330A (ja) 2023-10-06
MX2023003128A (es) 2023-03-22
EP4214346A1 (fr) 2023-07-26
KR20230048631A (ko) 2023-04-11
CA3193263A1 (fr) 2022-03-24
CN116490634A (zh) 2023-07-25
US20230313353A1 (en) 2023-10-05

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