WO2000071767A1 - Alliage aluminium-silicium possedant des proprietes ameliorees a des temperatures elevees, et articles coules a partir de cet alliage - Google Patents

Alliage aluminium-silicium possedant des proprietes ameliorees a des temperatures elevees, et articles coules a partir de cet alliage Download PDF

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Publication number
WO2000071767A1
WO2000071767A1 PCT/US1999/020313 US9920313W WO0071767A1 WO 2000071767 A1 WO2000071767 A1 WO 2000071767A1 US 9920313 W US9920313 W US 9920313W WO 0071767 A1 WO0071767 A1 WO 0071767A1
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WO
WIPO (PCT)
Prior art keywords
alloy
aluminum
article
cast
iron
Prior art date
Application number
PCT/US1999/020313
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English (en)
Inventor
Jonathan A. Lee
Po-Shou Chen
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The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration (Nasa)
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Application filed by The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration (Nasa) filed Critical The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration (Nasa)
Publication of WO2000071767A1 publication Critical patent/WO2000071767A1/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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
    • 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
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C22C21/04—Modified aluminium-silicon alloys

Definitions

  • This invention relates to aluminum alloys and specifically to high tensile strength aluminum-silicon hypoeutectic and eutectic alloys suitable for high temperature applications such as heavy duty pistons and other internal combustion applications.
  • Prior art Aluminum-Silicon (Al-Si) casting alloys are the most versatile of all common foundry cast alloys in the production of pistons for automotive engines. Depending on the Si concentration in weight percent, the Al-Si alloy systems fall into three major categories: hypoeutectic ( ⁇ 12 wt% Si), eutectic (12-13 wt% Si) and hypereutectic (14- 25 wt % Si).
  • hypoeutectic ⁇ 12 wt% Si
  • eutectic (12-13 wt% Si) eutectic (12-13 wt% Si)
  • hypereutectic 14- 25 wt % Si
  • hypoeutectic and eutectic alloys are very popular for the industry because they are more economical to produce by casting, simpler to control the cast parameters and easier to machine than hypereutectic.
  • most of them are not suitable for high temperature applications, such as in the automotive field, for the reason that their mechanical properties, such as tensile strength, are not as high as
  • MMC Metal Matrix Composites
  • R. Bowles has used ceramic fibers to improve tensile strength of a hypoeutectic 332.0 alloy, in a paper entitled “Metal Matrix Composites Aid Piston Manufacture", Manufacturing Engineering, May 1987.
  • A. Shakesheff has used ceramic particulate for reinforcing another type of hypoeutectic A359 alloy, as described in "Elevated Temperature Performance of Particulate Reinforced Aluminum Alloys", Materials Science Forum, Vol. 217-222, pp.
  • CMC Ceramic Matrix Composites
  • the first aspect of this invention is to provide a composition of an aluminum alloy that can be used as a hypoeutectic or eutectic Al-Si alloy which is more economical to
  • a composition has been devised to improve mechanical properties of such alloys that are suitable for high temperature applications such as heavy duty pistons and other internal combustion applications.
  • the article is gravity cast from this alloy the article is treated to a solutionizing step which dissolves unwanted precipitates and reduces any segregation present in the original alloy. After the solutionizing step, the article is quenched and is then aged at an elevated temperature for maximum strength. Iron and manganese may be present as impurites in the alloy in amounts less than 1.0 wt%. DESCRIPTION OF THE DRAWING
  • Figure 1 is a chart showing a comparison of this new alloy with typical conventional hypoeutectic (332.0) and eutectic (413.0) alloys, the chart showing tensile
  • the alloy of the invention is marked by an ability to perform in cast form at high servicing temperature. However, best properties are obtained in the forged and heated
  • the aluminum alloy of this invention suitable for high temperature applications and can be used as a hypoeutectic or eutectic Al-Si alloy, is composed of the following elements, by weight percent:
  • the alloy may contain as impurities less than 0.2 weight percent of zinc and chrominum. Iron and manganese may be omitted from the alloy. However, these elements tend to exist as impurities in most aluminum alloys due to common foundry practices. Eliminating them completely from the alloy (i.e., by alloy refining techniques) will increase the cost of the alloy significantly.
  • Silicon gives the alloy a high elastic modulus and low thermal expansion when the concentration is greater than 10 % wt. Si. For this reason, a low thermal expansion property is an important factor for eutectic alloy ( 12% - 13%). Finally, the addition of Si also improves fluidity of molten aluminum alloy to enhance the castability. The alloy will not require expensive diamond toolings for machining if the silicon concentration is kept well below about 14 wt %.
  • Copper coexists with magnesium and forms a solid solution in the matrix to give the alloy age-hardening properties, thereby improving the high temperature strength.
  • Copper also form the ⁇ ' intermediate phase (Al 2 Cu) and is the most potent strengthening
  • Titanium and vanadium form primary crystals of Al-Ti and Al-V compounds. Since these crystallized intermetallic compounds act as nuclei for solidification, the grain size upon solidification is fine. Titanium and vanadium also function as dispersion strengthening mechanism, in order to improve the high temperature tensile strength.
  • Zirconium forms primary crystals of an Al-Zr compound.
  • the crystallized intermetallic compounds also act as particles for dispersion strengthening.
  • Zirconium also forms a solid solution in the matrix to a small amount, thus enhancing the formation
  • Iron gives strength and also prevents adhesion to the steel die in which the article is cast. In general, iron is difficult to control because the aluminum alloy will tend to
  • Nickel improves tensile strength at elevated temperatures by forming Al-Cu-Ni intermetallic compounds.
  • Strontium is used to modify the Al-Si eutectic phase.
  • the strength and ductility of hypoeutectic and eutectic can be substantially improved by using Strontium as a Al-Si modifier. Effective modification can be achieved at very low additional level, but a range of recovered strontium of 0.01 to 0.05 wt.% is commonly used.
  • the alloy of this invention is marked by an ability to perform in cast form using conventional gravity cast or die casting. This alloy can be cast conventionally in the
  • An article such as an engine block or a piston, is cast from the alloy and the
  • the purpose of the solutionizing is to dissolve unwanted precipitates and
  • the article is quenched in a quenching medium at a
  • the article is boiling water. After quenching, the article is aged at a temperature of 410 °F to 490 °F
  • the aging process is preformed at a temperature within

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

L'invention concerne un alliage d'aluminium approprié pour des applications à température élevée, telles que des pistons haute performance et d'autres applications de combustion interne, ayant la composition, par pourcentage en poids, suivante : 6 à 14 % de silicium, 3 à 8 % de cuivre, 0,01 à 0,8 % de cuivre, 0,5 à 1,5 % de magnésium, 0,05 à 1,2 % de nickel, 0,01 à 1 % de manganèse, 0,05 à 1,2 % de titane, 0,05 à 1,2 % de zirconium, 0,05 à 1,2 % de vanadium, 0,001 à 0,10 % de strontium, le reste étant de l'aluminium. Une fois que l'article est coulé à partir de cet alliage, il est traité par application d'une solution qui dissout les précipités indésirables et réduit les ségrégations présentes dans l'alliage d'origine. Après l'application de la solution, l'article subit une trempe puis un vieillissement à une température élevée pour lui conférer une solidité maximale. Des impuretés de fer et de manganèse peuvent être présents dans l'alliage en quantités inférieures à 1 % en poids.
PCT/US1999/020313 1999-05-25 1999-09-03 Alliage aluminium-silicium possedant des proprietes ameliorees a des temperatures elevees, et articles coules a partir de cet alliage WO2000071767A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32276899A 1999-05-25 1999-05-25
US09/322,768 1999-05-25

Publications (1)

Publication Number Publication Date
WO2000071767A1 true WO2000071767A1 (fr) 2000-11-30

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1492894A1 (fr) * 2002-04-10 2005-01-05 The United States of America, represented by the Administrator of the National Aeronautics and Space Administration (NASA) Alliage d'aluminium a haute resistance mecanique pour applications a haute temperature
CN103003458A (zh) * 2010-07-16 2013-03-27 日本轻金属株式会社 高温强度和导热率优良的铝合金及其制造方法
DE102011083967A1 (de) * 2011-10-04 2013-04-04 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
DE102011083968A1 (de) * 2011-10-04 2013-04-04 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
DE102011083969A1 (de) * 2011-10-04 2013-04-04 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
DE102012220765A1 (de) * 2012-11-14 2014-05-15 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils, Motorbauteil und Verwendung einer Aluminiumlegierung
US9038704B2 (en) 2011-04-04 2015-05-26 Emerson Climate Technologies, Inc. Aluminum alloy compositions and methods for die-casting thereof
DE102014209102A1 (de) 2014-05-14 2015-11-19 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils, Motorbauteil und Verwendung einer Aluminiumlegierung
CN109504881A (zh) * 2018-12-14 2019-03-22 广东省海洋工程装备技术研究所 一种Al-Si-Cu-Mg-Ni-Sr合金材料及其制备方法和活塞
CN110184510A (zh) * 2019-07-12 2019-08-30 华劲新材料研究院(广州)有限公司 一种新型高导热铝合金材料
WO2019228416A1 (fr) * 2018-05-30 2019-12-05 比亚迪股份有限公司 Alliage d'aluminium et son procédé de préparation et son application
CN111636016A (zh) * 2020-04-21 2020-09-08 北京联合大学 一种铝硅基薄壁壳体精铸材料及其制备方法和研究方法
CN111876637A (zh) * 2020-07-08 2020-11-03 上海永茂泰汽车科技股份有限公司 一种耐热耐磨Al-Si-Cu-Ni铝合金及制备方法与应用
DE102019209245A1 (de) * 2019-06-26 2020-12-31 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
CN115198150A (zh) * 2022-06-24 2022-10-18 一汽解放汽车有限公司 铝硅合金及其制备方法和应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789607A (en) * 1985-09-13 1988-12-06 Ndc Company, Ltd. Aluminum bearing alloy and two-layer bearing material having bearing layer of aluminum bearing alloy therein
DE4404420A1 (de) * 1994-02-11 1995-08-17 Alcan Gmbh Aluminiumlegierung, Kolben aus Aluminiumlegierung und Verwendung der Aluminiumlegierung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789607A (en) * 1985-09-13 1988-12-06 Ndc Company, Ltd. Aluminum bearing alloy and two-layer bearing material having bearing layer of aluminum bearing alloy therein
DE4404420A1 (de) * 1994-02-11 1995-08-17 Alcan Gmbh Aluminiumlegierung, Kolben aus Aluminiumlegierung und Verwendung der Aluminiumlegierung

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1492894A4 (fr) * 2002-04-10 2005-04-27 Nasa Alliage d'aluminium a haute resistance mecanique pour applications a haute temperature
AU2003247334B2 (en) * 2002-04-10 2007-06-21 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration (Nasa) High strength aluminum alloy for high temperature applications
EP1492894A1 (fr) * 2002-04-10 2005-01-05 The United States of America, represented by the Administrator of the National Aeronautics and Space Administration (NASA) Alliage d'aluminium a haute resistance mecanique pour applications a haute temperature
CN103003458A (zh) * 2010-07-16 2013-03-27 日本轻金属株式会社 高温强度和导热率优良的铝合金及其制造方法
US9222151B2 (en) 2010-07-16 2015-12-29 Nippon Light Metal Company, Ltd. Aluminum alloy excellent in high temperature strength and heat conductivity and method of production of same
US9038704B2 (en) 2011-04-04 2015-05-26 Emerson Climate Technologies, Inc. Aluminum alloy compositions and methods for die-casting thereof
DE102011083967A1 (de) * 2011-10-04 2013-04-04 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
WO2013050358A1 (fr) * 2011-10-04 2013-04-11 Federal-Mogul Nürnberg GmbH Procédé de fabrication d'un composant de moteur et composant de moteur
WO2013050355A1 (fr) * 2011-10-04 2013-04-11 Federal-Mogul Nürnberg GmbH Procédé de fabrication d'un composant de moteur et composant de moteur
WO2013050322A3 (fr) * 2011-10-04 2013-07-18 Federal-Mogul Nürnberg GmbH Procédé de production d'un élément de moteur et élément de moteur
DE102011083969A1 (de) * 2011-10-04 2013-04-04 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
DE102011083968A1 (de) * 2011-10-04 2013-04-04 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
DE102012220765A1 (de) * 2012-11-14 2014-05-15 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils, Motorbauteil und Verwendung einer Aluminiumlegierung
JP2018114556A (ja) * 2012-11-14 2018-07-26 フェデラル−モーグル ニュルンベルグ ゲゼルシャフト ミット ベシュレンクテル ハフツング エンジンコンポーネントを製造する方法、エンジンコンポーネント、および、アルミニウム合金の使用
JP2016505382A (ja) * 2012-11-14 2016-02-25 フェデラル−モーグル ニュルンベルグ ゲゼルシャフト ミット ベシュレンクテル ハフツング エンジンコンポーネントを製造する方法、エンジンコンポーネント、および、アルミニウム合金の使用
US10022788B2 (en) 2012-11-14 2018-07-17 Federal-Mogul Nurnberg Gmbh Method for producing an engine component, engine component, and use of an aluminium alloy
DE102014209102A1 (de) 2014-05-14 2015-11-19 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils, Motorbauteil und Verwendung einer Aluminiumlegierung
US11280292B2 (en) 2014-05-14 2022-03-22 Federal-Mogul Nurnberg Gmbh Method for producing an engine component, engine component, and use of an aluminum alloy
WO2019228416A1 (fr) * 2018-05-30 2019-12-05 比亚迪股份有限公司 Alliage d'aluminium et son procédé de préparation et son application
EP3805416A4 (fr) * 2018-05-30 2021-07-28 BYD Company Limited Alliage d'aluminium et son procédé de préparation et son application
CN109504881A (zh) * 2018-12-14 2019-03-22 广东省海洋工程装备技术研究所 一种Al-Si-Cu-Mg-Ni-Sr合金材料及其制备方法和活塞
DE102019209245A1 (de) * 2019-06-26 2020-12-31 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Motorbauteils und Motorbauteil
CN110184510A (zh) * 2019-07-12 2019-08-30 华劲新材料研究院(广州)有限公司 一种新型高导热铝合金材料
CN111636016A (zh) * 2020-04-21 2020-09-08 北京联合大学 一种铝硅基薄壁壳体精铸材料及其制备方法和研究方法
CN111876637A (zh) * 2020-07-08 2020-11-03 上海永茂泰汽车科技股份有限公司 一种耐热耐磨Al-Si-Cu-Ni铝合金及制备方法与应用
CN115198150A (zh) * 2022-06-24 2022-10-18 一汽解放汽车有限公司 铝硅合金及其制备方法和应用
CN115198150B (zh) * 2022-06-24 2023-10-13 一汽解放汽车有限公司 铝硅合金及其制备方法和应用

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