EP1215295A1 - Alliage et pièce en aluminium à durcissement structural - Google Patents

Alliage et pièce en aluminium à durcissement structural Download PDF

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Publication number
EP1215295A1
EP1215295A1 EP01127698A EP01127698A EP1215295A1 EP 1215295 A1 EP1215295 A1 EP 1215295A1 EP 01127698 A EP01127698 A EP 01127698A EP 01127698 A EP01127698 A EP 01127698A EP 1215295 A1 EP1215295 A1 EP 1215295A1
Authority
EP
European Patent Office
Prior art keywords
component
weight
aluminum
nickel
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.)
Granted
Application number
EP01127698A
Other languages
German (de)
English (en)
Other versions
EP1215295B1 (fr
Inventor
Andreas Dr. Barth
Mohamed Dr. Douaoui
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1215295A1 publication Critical patent/EP1215295A1/fr
Application granted granted Critical
Publication of EP1215295B1 publication Critical patent/EP1215295B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • 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
    • 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
    • C22F1/043—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 silicon as the next major constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/90—Alloys not otherwise provided for
    • F05C2201/903—Aluminium alloy, e.g. AlCuMgPb F34,37

Definitions

  • the invention relates to an aluminum casting alloy according to claim 1 and a component according to claim 2.
  • This alloy is particularly suitable for pistons in internal combustion engines thought.
  • the relatively high silicon content leads to a good wear resistance and high strength even at high Temperatures.
  • the other alloy elements prevent that Formation of sharp primary silicon crystals under Alternating loads form the starting points for fatigue fractures.
  • such components only have limited white Elongations at break.
  • the brittleness of the component at higher concentrations elevated.
  • the cobalt in particular shows the functional property here, the adhesive properties of the component on the mold to decrease without increasing the brittleness.
  • the Iron content can be greatly reduced.
  • the object of the invention is therefore an alloy to provide, resulting in components that have a high Heat resistance, high elongation at break, high ductility with a low tendency to corrode.
  • the object is achieved by an alloy according to claim 1 and a component according to claim 2 solved.
  • the alloy according to claim 1 has one Silicon content that is between 5% and 10%. On lower silicon content would increase the castability of the alloy affect. A higher silicon content leads to material embrittlement.
  • the silicon content is particularly preferably between 6.5% and 7.5%.
  • the alloying element magnesium forms together with the silicon Mg 2 Si crystals (magnesium silicide), which increase strength. If the magnesium content is below the lower limit according to the invention, the resulting component is too low in strength; above 0.35% magnesium, the Mg 2 Si crystals lead to too high brittleness.
  • the alloy element nickel forms together with the aluminum intermetallic phases, such as. B. Al 3 Ni (nickel aluminide) which increase the heat resistance and only melt congruently at temperatures above 800 ° C (in contrast to Al 2 Cu (copper aluminide), which forms with copper-containing alloys and melts below 600 ° C).
  • the phases containing aluminum and nickel do not have a negative effect on the ductility of the material.
  • the nickel content of the alloy according to the invention is between 0.3% and 3%, preferably between 0.5% and 2.5%.
  • Cobalt also forms intermetallic Compounds based on aluminum and cobalt, similar to the connections based on aluminum and nickel, which increase the heat resistance.
  • the alloy according to the invention may contain cobalt between 0.6% and 3% by weight.
  • Another object of the invention is a component according to claim 2.
  • the component is cast from an alloy, which is already described in claim 1 and the advantages has that result from this alloy.
  • a heat treatment of the component leads to precipitation hardening (hot curing) of an Al matrix (by which the component is formed) by deliberately intermetallic phases such.
  • the precipitation hardening takes place in a temperature interval between 160 ° C and 240 ° C for a period of 0.2 h to 10 h.
  • Precipitation hardening is particularly preferably carried out in a temperature interval between 180 ° C. and 220 ° C. for a period of 0.5 h to 8 h.
  • the duration of the heat treatment depends on the temperature, at higher temperatures the heat treatment is shortened considerably.
  • the component represented by the alloy according to the invention is preferred as a sand casting or permanent mold component trained as so the heat treatment already mentioned is facilitated.
  • the component according to the invention is particularly expedient as a cylinder head or as a cylinder crankcase in an internal combustion engine designed.
  • these components especially in Cylinder heads experience very high pressures at high temperatures on.
  • these components have very complex geometries have such.
  • a cylinder head of an internal combustion engine is used in the log casting process cast with the alloy according to the invention.
  • the Casting parameters correspond to the usual procedural process control.
  • the component After casting and after cooling, the component has one coarse grain structure of mixed crystals due to aluminum most alloying elements at room temperature has very low solubility. For this reason it is now done solution annealing of the component for approx. 4 -5 h at one temperature of approx. 540 ° C. In this step, the alloying elements loosen in the aluminum matrix. Then that will Component quenched in water, the alloying elements in the aluminum matrix remain solved.
  • precipitation hardening takes place, in which the elements dissolved in the aluminum matrix leave the matrix in a controlled manner with the formation of mixed crystals. This takes place at a temperature of 220 ° C for 0.5 hours. Alternatively, precipitation hardening can take place at 180 ° C for 8 hours.
  • the phases that form during precipitation hardening (precipitations) are intermetallic compounds, these include Mg 2 Si, which increases the strength of the component and Al 3 Ni (or other ternary and / or quaternary intermetallic compounds based on aluminum and nickel) which increases the heat resistance of the component due to its high melting temperature.
  • the strength and ductility of the component can be adjusted by the temperature control and the duration of the temperature treatment, which, as mentioned, is due to the deposited crystal (e.g. the intermetallic compounds Mg 2 Si and Al 3 Ni).
  • the size of the Mg2Si and Al3Ti precipitates also affects which are also influenced by the heat treatment the component properties, which is explained below.
  • the strength ⁇ of the component is shown schematically in FIGS. 1 and 2 (left y-axis) and the elongation at break ⁇ (right y-axis, dotted) as a function of the duration of the heat treatment t.
  • Figures 1 and 2 differ in temperature T of the heat treatments, T of Figure 1 being smaller as T of Figure 2.
  • the solid curves 1 and 3 show schematically the course of the strength ⁇ , the dashed lines 2 and 4 the course of the elongation at break ⁇ .
  • T6 the component points here a very fine structure of the excretions.
  • the elongation at break in the T6 state reaches a minimum.
  • the T7 state has the advantage of being due the rougher structure of the excretions found in this Sets state, the elongation at break increases again.
  • T6 and T7 are fixed technical terms, T does not stand for temperature in these terms.
  • the status T7 is related to the task to strive for high elongation at break.
  • the alloying elements silicon and magnesium increase the strength and a shift of curves 1 and 3 up. In return, these elements make curves 2 and 4 shifted down, which negatively affects the elongation at break effect. Surprisingly, it was found that both nickel and cobalt are the alloying elements Move curves 1 and 3 upwards without a negative impact on the elongation at break.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP01127698A 2000-12-15 2001-11-21 Alliage et pièce en aluminium à durcissement structural Expired - Lifetime EP1215295B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10062547 2000-12-15
DE10062547A DE10062547A1 (de) 2000-12-15 2000-12-15 Aushärtbare Aluminium-Gusslegierung und Bauteil

Publications (2)

Publication Number Publication Date
EP1215295A1 true EP1215295A1 (fr) 2002-06-19
EP1215295B1 EP1215295B1 (fr) 2006-06-14

Family

ID=7667285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127698A Expired - Lifetime EP1215295B1 (fr) 2000-12-15 2001-11-21 Alliage et pièce en aluminium à durcissement structural

Country Status (3)

Country Link
US (1) US6676775B2 (fr)
EP (1) EP1215295B1 (fr)
DE (2) DE10062547A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010264A3 (fr) * 2007-07-18 2009-04-09 Univ Clausthal Tech Alliage de fonderie d'aluminium et utilisation
EP2450463A3 (fr) * 2010-07-02 2013-05-29 Vöcklabrucker Metallgießerei Dambauer GmbH Alliage d'aluminium

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013777B4 (de) * 2004-03-20 2005-12-29 Hydro Aluminium Deutschland Gmbh Verfahren zur Herstellung eines Gussteils aus einer AL/Si-Gusslegierung
US8062250B2 (en) * 2004-08-10 2011-11-22 Unomedical A/S Cannula device
DE102005037738B4 (de) * 2005-08-10 2009-03-05 Daimler Ag Aluminium-Gusslegierung mit hoher dynamischer Festigkeit und Wärmeleitfähigkeit
AU2012308416C1 (en) 2011-09-16 2016-11-24 Ball Corporation Impact extruded containers from recycled aluminum scrap
AU2014251206B2 (en) 2013-04-09 2018-03-08 Ball Corporation Aluminum impact extruded bottle with threaded neck made from recycled aluminum and enhanced alloys
US20180044155A1 (en) 2016-08-12 2018-02-15 Ball Corporation Apparatus and Methods of Capping Metallic Bottles
WO2018125199A1 (fr) 2016-12-30 2018-07-05 Ball Corporation Alliage d'aluminium pour récipients extrudés par choc et procédé pour le fabriquer
WO2018152230A1 (fr) 2017-02-16 2018-08-23 Ball Corporation Appareil et procédés de formation et d'application de fermetures inviolables sur le col fileté de récipients métalliques
MX2020002563A (es) 2017-09-15 2020-07-13 Ball Corp Sistema y metodo de formar una tapa metalica para un contenedor roscado.
DE102021114484A1 (de) 2021-06-07 2022-12-08 Audi Aktiengesellschaft Aluminium-Gusslegierung
DE102021131935A1 (de) 2021-12-03 2023-06-07 Audi Aktiengesellschaft Aluminium-Druckgusslegierung
DE102021131973A1 (de) 2021-12-03 2023-06-07 Audi Aktiengesellschaft Aluminium-Druckgusslegierung
MX2024009465A (es) 2022-02-04 2024-08-09 Ball Corp Metodo para formar un rizo y contenedor metalico roscado que incluye el mismo.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH168202A (de) * 1932-02-05 1934-03-31 Metallgesellschaft Ag Aluminium-Silizium-Legierung.
US4099314A (en) * 1976-03-10 1978-07-11 Societe De Vente De L'aluminium Pechiney Method of producing hollow bodies in aluminum-silicon alloys by powder-extrusion
JPH03120334A (ja) * 1989-09-29 1991-05-22 Showa Alum Corp 押出性に優れた低熱膨張アルミニウム合金
DE4215160A1 (de) * 1992-05-08 1993-11-11 Vaw Ver Aluminium Werke Ag Aluminium-Druckgußlegierung
EP0861911A1 (fr) * 1996-09-03 1998-09-02 Toyota Jidosha Kabushiki Kaisha Alliage, alliage d'aluminium et element d'alliage d'aluminium ayant une excellente resistance a la fatigue thermique
JPH1182151A (ja) * 1997-09-11 1999-03-26 Yamaha Motor Co Ltd アルミニウム合金製シリンダブロック

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
GB394746A (en) * 1932-02-05 1933-07-06 Lightalloys Ltd Aluminium alloys and methods of treating same
US4243438A (en) 1978-07-21 1981-01-06 Sumitomo Aluminium Smelting Co., Ltd. Production of aluminum impact extrusions
US4274438A (en) * 1979-02-21 1981-06-23 Westinghouse Electric Corp. Method of diagnostic valve testing
US5240521A (en) * 1991-07-12 1993-08-31 Inco Alloys International, Inc. Heat treatment for dispersion strengthened aluminum-base alloy
JP3142659B2 (ja) 1992-09-11 2001-03-07 ワイケイケイ株式会社 高力、耐熱アルミニウム基合金
DE4404420C2 (de) 1994-02-11 1997-07-17 Alcan Gmbh Aluminium-Silicium-Legierung und ihre Verwendung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH168202A (de) * 1932-02-05 1934-03-31 Metallgesellschaft Ag Aluminium-Silizium-Legierung.
US4099314A (en) * 1976-03-10 1978-07-11 Societe De Vente De L'aluminium Pechiney Method of producing hollow bodies in aluminum-silicon alloys by powder-extrusion
JPH03120334A (ja) * 1989-09-29 1991-05-22 Showa Alum Corp 押出性に優れた低熱膨張アルミニウム合金
DE4215160A1 (de) * 1992-05-08 1993-11-11 Vaw Ver Aluminium Werke Ag Aluminium-Druckgußlegierung
EP0861911A1 (fr) * 1996-09-03 1998-09-02 Toyota Jidosha Kabushiki Kaisha Alliage, alliage d'aluminium et element d'alliage d'aluminium ayant une excellente resistance a la fatigue thermique
JPH1182151A (ja) * 1997-09-11 1999-03-26 Yamaha Motor Co Ltd アルミニウム合金製シリンダブロック

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 317 (C - 0858) 13 August 1991 (1991-08-13) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010264A3 (fr) * 2007-07-18 2009-04-09 Univ Clausthal Tech Alliage de fonderie d'aluminium et utilisation
EP2450463A3 (fr) * 2010-07-02 2013-05-29 Vöcklabrucker Metallgießerei Dambauer GmbH Alliage d'aluminium

Also Published As

Publication number Publication date
EP1215295B1 (fr) 2006-06-14
US20020088509A1 (en) 2002-07-11
DE50110140D1 (de) 2006-07-27
DE10062547A1 (de) 2002-06-20
US6676775B2 (en) 2004-01-13

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