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EP1759028A2 - Alliage al-zn-mg apte au traitement thermique pour pieces coulees automobiles et aerospatiaux - Google Patents

Alliage al-zn-mg apte au traitement thermique pour pieces coulees automobiles et aerospatiaux

Info

Publication number
EP1759028A2
EP1759028A2 EP05743381A EP05743381A EP1759028A2 EP 1759028 A2 EP1759028 A2 EP 1759028A2 EP 05743381 A EP05743381 A EP 05743381A EP 05743381 A EP05743381 A EP 05743381A EP 1759028 A2 EP1759028 A2 EP 1759028A2
Authority
EP
European Patent Office
Prior art keywords
aluminum alloy
concentration
less
shaped casting
alloy
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.)
Withdrawn
Application number
EP05743381A
Other languages
German (de)
English (en)
Other versions
EP1759028A4 (fr
Inventor
Jen C. Lin
Cagatay Yanar
Michael K. Brandt
Xinyan Yan
Wenping Zhang
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.)
Howmet Aerospace Inc
Original Assignee
Alcoa 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 Alcoa Inc filed Critical Alcoa Inc
Publication of EP1759028A2 publication Critical patent/EP1759028A2/fr
Publication of EP1759028A4 publication Critical patent/EP1759028A4/fr
Withdrawn legal-status Critical Current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

Definitions

  • the most commonly used group of alloys Al-Si 7 -Mg
  • cast materials made of A356.0 the most commonly used Al-Si -Mg alloy, can reliably guarantee ultimate tensile strength of 290 MPa (42,060 psi), and tensile yield strength of 220 MPa (31,908 psi) with elongations of 8% or greater.
  • a variety of alternate alloys exist and are registered that exhibit higher strength than the Al-Si 7 -Mg alloys. However, these exhibit problems in castability, corrosion potential or fluidity that are not readily overcome. The alternate alloys are therefore less suitable for use.
  • the alloy of the present invention is an Al-Zn-Mg base alloy for low pressure permanent or semi-permanent mold, squeeze, high pressure die, pressure or gravity casting, lost foam, investment casting, N-mold, or sand mold casting with the following composition ranges (all in weight percent): Zn: about 3.5-5.5%, Mg: about 0.8-1.5%, Si: less than about 1.0%, Mn: less than about 0.30%, Fe and other incidental impurities: less than about 0.30%. [0008] Silicon up to about 1.0% may be employed to improve castability. Lower levels of silicon may be employed to increase strength. For some applications, manganese up to about 0.3%) may be employed to improve castability.
  • the alloy may also contain grain refiners such as titanium diboride, TiB 2 or titanium carbide, TiC and/or anti-recrystallization agents such as zirconium or scandium. If titanium diboride is employed as a grain refiner, the concentration of boron in the alloy may be in a range from 0.0025%) to 0.05%. Likewise, if titanium carbide is employed as a grain refiner, the concentration of carbon in the alloy may be in the range from 0.0025% to 0.05%. Typical grain refiners are aluminum alloys containing TiC or TiB 2 .
  • Zirconium if used to prevent grain growth during solution heat treatment, is generally employed in a range below 0.2%. Scandium may also be used in a range below 0.3%.
  • the purpose of the present invention is to provide a range of aluminum alloys having good strength, good castability for forming shaped castings, good corrosion resistance and good thermal shock resistance. A fine grain size is often desirable for strength and for appearance, particularly for components which are anodized and then coated with a clear finish layer.
  • Summary of the Invention [0012]
  • the present invention is an aluminum alloy including from about 3.5-5.5% Zn, from about 0.8-1.5%Mg.
  • the present invention is a heat treatable shaped casting of an aluminum alloy including from about 3.5-5.5%) Zn, from about 0.8-1.5%) Mg, and less than about 1%) Si, less than about 0.30% Mn, and less than 0.30% Fe and other incidental impurities.
  • the present invention is a method of preparing a heat treatable aluminum alloy shaped casting.
  • the method includes preparing a molten mass of an aluminum alloy including from about 3.5-5.5% Zn, from about 0.8-1.5%) Mg, and less than about 1%) Si, less than about 0.30% Mn, and less than 0.30% Fe and other incidental impurities.
  • the method further includes casting at least a portion of the molten mass in a mold configured to produce the shaped casting, permitting the molten mass to solidify, and removing the shaped casting from the mold.
  • the first alloy shown in Table 1 was Al-4.5Zn-l.2Mg. Two samples were tested, each in T5 and T6 tempers. The tensile strength and yield strength are presented in megapascals, and the elongation in percent is presented, for two samples of the alloy, in both T5 and T6 tempers. This alloy is an example of the present invention.
  • the second alloy shown in Table 1 also has a composition in the range of the present invention. It contains Al-4.5Zn-l.2Mg-0.4Si. This shows lower values for tensile and yield strength than the previous alloy in T5 temper. However, it has significantly higher values for tensile strength, yield strength and elongation in T6 temper than did the previous alloy.
  • the third alloy shown in Table 1 is not within the composition range of the present invention. It is presented for comparison. The third alloy has higher values for tensile and yield strength and higher elongation values in T5 temper than the second alloy in T5 temper, but lower values for tensile and yield strength and lower value for elongation than the second alloy in T6 temper.
  • the fourth alloy shown in Table 1 is also not within the composition range of the present invention. It, also, is presented for comparison. The data presented illustrate the effect of zirconium, probably for preventing grain growth. The results for the T6 temper show very high values for tensile strength, yield strength and elongation. [0022] Mechanical properties of shaped castings of an alloy according to the present invention were tested in a first plant trial, and the results are presented in Table 2. Table 2
  • the composition for the first plant trial was Al-3.5Zn-0.97Mg.
  • the table presents tensile strength and yield strength in megapascals, as well as elongation in percent. Two samples were tested in T5 temper, and two samples of the as-cast material were tested. It is noted that the elongation for the as-cast material had the extraordinary values of 15.03 and 15.95%.
  • Tests were also made in a second plant trial on an alloy containing slightly more magnesium than the alloy of Table 1. Data for the second plant trial are presented in Table 3. Table 3
  • Table 3 The data in Table 3 are for an alloy containing Al-3.5 Zn- 1.1 Mg. This is an alloy according to the present invention. Data are presented for three different heat treatments. The first was 160 °C for 1 hour, the second was 160 °C for six hours and the third was 143 °C for 32 hours. The tensile strength and yield strength values in this table are expressed in megapascals, and the elongation is expressed in percent. [0026] Table 4 presents data for the same alloy as the samples in Table 3. The samples reported in Table 4 were subjected to a T6 heat treatment that consisted of 471 °C for 3 hours, and then 527 °C for 10 hours followed by cold water quench. The samples were then aged as reported in Table 4, and the stress results in Table 4 were then obtained. The first line in the table is for a sample which was naturally aged only. Table 4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un alliage d'aluminium pour pièces coulées qui contient entre environ 3,5 et 5,5 % Zn, entre environ 1 et 1,5 % Mg, moins d'environ 1 % Si, moins d'environ 0,30 % Mn, et moins d'environ 0,3 % Fe et autres impuretés fortuites.
EP05743381A 2004-04-22 2005-04-22 Alliage al-zn-mg apte au traitement thermique pour pieces coulees automobiles et aerospatiaux Withdrawn EP1759028A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US56481304P 2004-04-22 2004-04-22
US11/111,585 US20050238529A1 (en) 2004-04-22 2005-04-21 Heat treatable Al-Zn-Mg alloy for aerospace and automotive castings
PCT/US2005/013766 WO2005106057A2 (fr) 2004-04-22 2005-04-22 Alliage al-zn-mg apte au traitement thermique pour pieces coulees automobiles et aerospatiaux

Publications (2)

Publication Number Publication Date
EP1759028A2 true EP1759028A2 (fr) 2007-03-07
EP1759028A4 EP1759028A4 (fr) 2007-10-03

Family

ID=35136636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05743381A Withdrawn EP1759028A4 (fr) 2004-04-22 2005-04-22 Alliage al-zn-mg apte au traitement thermique pour pieces coulees automobiles et aerospatiaux

Country Status (9)

Country Link
US (1) US20050238529A1 (fr)
EP (1) EP1759028A4 (fr)
JP (1) JP2007534839A (fr)
KR (1) KR20070009719A (fr)
AU (1) AU2005238478A1 (fr)
CA (1) CA2564078A1 (fr)
MX (1) MXPA06012242A (fr)
NO (1) NO20065386L (fr)
WO (1) WO2005106057A2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2292075T5 (es) 2005-01-19 2010-12-17 Otto Fuchs Kg Aleacion de aluminio no sensible al enfriamiento brusco, asi como procedimiento para fabricar un producto semiacabado a partir de esta aleacion.
US20060289093A1 (en) * 2005-05-25 2006-12-28 Howmet Corporation Al-Zn-Mg-Ag high-strength alloy for aerospace and automotive castings
US8083871B2 (en) 2005-10-28 2011-12-27 Automotive Casting Technology, Inc. High crashworthiness Al-Si-Mg alloy and methods for producing automotive casting
EP1978120B1 (fr) * 2007-03-30 2012-06-06 Technische Universität Clausthal Alliage de fonte, d'aluminium et de silice et son procédé de fabrication
ES2330713B2 (es) * 2008-06-11 2010-04-19 Abinash Banerji Afinador de grano de base aluminio.
US8349462B2 (en) 2009-01-16 2013-01-08 Alcoa Inc. Aluminum alloys, aluminum alloy products and methods for making the same
FR2968675B1 (fr) 2010-12-14 2013-03-29 Alcan Rhenalu Produits epais en alliage 7xxx et procede de fabrication
EP3052668B1 (fr) * 2013-09-30 2020-07-01 Apple Inc. Alliages d'aluminium à haute résistance et ayant un côté esthétique
DE102014224229A1 (de) 2014-11-27 2016-06-02 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils, Motorbauteil und Verwendung einer Aluminiumlegierung
US11345980B2 (en) 2018-08-09 2022-05-31 Apple Inc. Recycled aluminum alloys from manufacturing scrap with cosmetic appeal
CN114214547B (zh) * 2021-09-30 2022-08-23 中国航发北京航空材料研究院 一种铝锌镁钪合金及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR917559A (fr) * 1945-11-20 1947-01-15 Alliages d'aluminium-zinc-magnésium
JPH09279284A (ja) * 1995-06-14 1997-10-28 Furukawa Electric Co Ltd:The 耐応力腐食割れ性に優れた溶接用高力アルミニウム合金
JPH10280081A (ja) * 1997-04-08 1998-10-20 Sky Alum Co Ltd Ａｌ−Ｚｎ−Ｍｇ系合金からなる高強度・高精度枠形状部材およびその製造方法
JPH10298692A (ja) * 1997-04-22 1998-11-10 Sky Alum Co Ltd 高強度・高精度枠形状部材およびその製造方法
JP2002173729A (ja) * 2000-12-04 2002-06-21 Nippon Steel Corp 塗装焼付け硬化性およびプレス成形性に優れるアルミニウム合金板およびその製造方法
EP1229141A1 (fr) * 2001-02-05 2002-08-07 ALUMINIUM RHEINFELDEN GmbH Alliage d'aluminium de fonderie
JP2003147498A (ja) * 2001-11-05 2003-05-21 Kyushu Mitsui Alum Kogyo Kk 輸送機器用アルミニウム合金の半溶融成型ビレットの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616420A (en) * 1968-11-25 1971-10-26 British Aluminium Co Ltd Aluminium base alloys and anodes
JPS61186445A (ja) * 1985-02-12 1986-08-20 Riyouka Keikinzoku Kogyo Kk 樹脂成形用金型
JPS61227143A (ja) * 1985-03-29 1986-10-09 Sumitomo Light Metal Ind Ltd 強度がすぐれ溶接構造物に適する高圧鋳造用アルミニウム合金
JPS62250149A (ja) * 1986-04-24 1987-10-31 Kobe Steel Ltd 自転車用アルミニウム合金
US4873054A (en) * 1986-09-08 1989-10-10 Kb Alloys, Inc. Third element additions to aluminum-titanium master alloys
US20010028861A1 (en) * 1997-12-17 2001-10-11 Que-Tsang Fang High strength Al-Zn-Mg alloy for making shaped castings including vehicle wheels and structural components

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR917559A (fr) * 1945-11-20 1947-01-15 Alliages d'aluminium-zinc-magnésium
JPH09279284A (ja) * 1995-06-14 1997-10-28 Furukawa Electric Co Ltd:The 耐応力腐食割れ性に優れた溶接用高力アルミニウム合金
JPH10280081A (ja) * 1997-04-08 1998-10-20 Sky Alum Co Ltd Ａｌ−Ｚｎ−Ｍｇ系合金からなる高強度・高精度枠形状部材およびその製造方法
JPH10298692A (ja) * 1997-04-22 1998-11-10 Sky Alum Co Ltd 高強度・高精度枠形状部材およびその製造方法
JP2002173729A (ja) * 2000-12-04 2002-06-21 Nippon Steel Corp 塗装焼付け硬化性およびプレス成形性に優れるアルミニウム合金板およびその製造方法
EP1229141A1 (fr) * 2001-02-05 2002-08-07 ALUMINIUM RHEINFELDEN GmbH Alliage d'aluminium de fonderie
JP2003147498A (ja) * 2001-11-05 2003-05-21 Kyushu Mitsui Alum Kogyo Kk 輸送機器用アルミニウム合金の半溶融成型ビレットの製造方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUFNAGEL W: "Key to Aluminium Alloys, 4th Edition" ALUMINIUM-SCHLUESSEL = KEY TO ALUMINIUM ALLOYS, 1991, pages 195-205, XP002194851 *
See also references of WO2005106057A2 *

Also Published As

Publication number Publication date
WO2005106057A3 (fr) 2006-01-26
WO2005106057A2 (fr) 2005-11-10
CA2564078A1 (fr) 2005-11-10
AU2005238478A1 (en) 2005-11-10
EP1759028A4 (fr) 2007-10-03
JP2007534839A (ja) 2007-11-29
KR20070009719A (ko) 2007-01-18
NO20065386L (no) 2007-01-12
MXPA06012242A (es) 2007-01-31
US20050238529A1 (en) 2005-10-27

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