EP1979502B1 - Iron-nickel-cobalt alloy - Google Patents

Iron-nickel-cobalt alloy Download PDF

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Publication number
EP1979502B1
EP1979502B1 EP07721865.9A EP07721865A EP1979502B1 EP 1979502 B1 EP1979502 B1 EP 1979502B1 EP 07721865 A EP07721865 A EP 07721865A EP 1979502 B1 EP1979502 B1 EP 1979502B1
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max
use according
alloy
mass
nickel
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German (de)
French (fr)
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EP1979502A1 (en
Inventor
Bodo Gehrmann
Bernd De Boer
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VDM Metals GmbH
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Outokumpu VDM GmbH
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

Definitions

  • the invention relates to the use of an iron-nickel-cobalt alloy.
  • CFRP carbon fiber reinforced plastics
  • tools for the production of such components tools (forms) are required in which the viscous resin carbon fiber scrim is cured at a temperature of about 180 ° C.
  • RTM Resin Transfer Molding
  • carbon fiber textiles are placed in the mold, the mold is evacuated and then the resin is injected into the mold. After curing at about 180 ° C, the component is removed from the tool.
  • the materials used for these molds are either C-steels or a low expansion coefficient alloy (36% nickel, Ni36 iron), which typically has a mean thermal expansion coefficient between 1.6 and 2.5 x 10 -6 K -1 .
  • the invention is based on the object to provide for these forms an alloy with which said difficulties can be overcome easily.
  • the Ni content can be set in ranges from 32.5 to 33.5%.
  • Another advantageous alloy to use is characterized by the following chemical composition (in mass%): Ni 32.5 to 33.5% Co > 3.5 to ⁇ 4.5% Not a word Max. 0.05% Cr Max. 0.05% C Max. 0.009% Mn Max. 0.04% Si Max. 0.03% S Max. 0.003% N Max. 0.004% Ti Max. 0.01% Cu Max. 0.05% P Max. 0.005% al 0.001 to 0.05% mg Max. 0,0008% Ca Max. 0.003% Zr Max. 0.05% O Max. 0.005% Remainder Fe and production-related admixtures, wherein the alloy in the temperature range of 20 to 200 ° C has a mean thermal expansion coefficient ⁇ 1.3 x 10 -6 / K.
  • the molds are machined as a milled part from thermoformed (forged or rolled) or cast solid material and then annealed.
  • the alloy can also be used in the form of wire material, in particular as a welding additive in the production of the mold.
  • the alloy can be used as a molded part, in particular for the production of CFRP fittings with the RTM technology.
  • Other aircraft components, which are also made of lightweight CFRP, can also be produced with components of the proposed alloy.
  • components made from shapes of this alloy can be easily removed since the thermal shrinkage of the mold after the curing process is lower.
  • the component can be removed so that it will fulfill its function without reworking.
  • Table 1 lists exemplary chemical compositions for iron-nickel-cobalt alloys according to the invention (E1, E2, E3, E4, E5, E6) in comparison to other investigated iron-nickel-cobalt alloys (T1, U1) , Element (%) E1 E2 E3 E4 E5 E6 C 0,002 0.047 0,002 0,008 0,002 0,036 S 0.0023 0.0009 0.0006 0.0015 0.0004 0.0011 N 0.001 0.001 0.001 0.001 Cr 0.02 0.07 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 0.01 Ni 34,20 34.25 32.75 32,80 32,80 32,55 Mn ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 Si 0.07 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 ⁇ 0.01 Not a word 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
  • inventive alloys E1-E3 and E6 achieve coefficients of thermal expansion in the range of 1.5- ⁇ 2.0x10 -6 / K in the temperature range of 20-200 ° C.
  • inventive alloys E4 and E5 achieve an even lower expansion coefficient of about 1.3 ⁇ 10 -6 / K in the temperature range of 20 and 200 ° C, so that with the alloys E4 and E5, a combination of increased strength was achieved with low thermal expansion ,

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Description

Die Erfindung betrifft die Verwendung einer Eisen-Nickel-Kobalt-Legierung.The invention relates to the use of an iron-nickel-cobalt alloy.

In zunehmendem Maße werden Bauteile auch für sicherheitsrelevante Produkte, wie im Flugzeugbau, aus Kohlefaser verstärkten Kunststoffen (CFK) hergestellt. Für die Produktion derartiger Bauteile werden Werkzeuge (Formen) benötigt, in denen das viskose Harz-Kohlefaser-Gelege bei einer Temperatur von ca. 180°C ausgehärtet wird. Beim sog. RTM (Resin Transfer Molding) - Verfahren werden Kohlefasertextilien in die Form eingelegt, die Form evakuiert und anschließend das Harz in die Form injiziert. Nach dem Aushärten bei ca. 180°C wird das Bauteil aus dem Werkzeug entnommen. Als Werkstoffe kommen für diese Formen entweder C-Stähle oder eine Legierung mit geringem Ausdehnungskoeffizient (Eisen mit 36% Nickel, Ni36) zum Einsatz, die typischerweise einen mittleren Wärmeausdehnungskoeffizienten zwischen 1,6 und 2,5 x 10-6 K-1 hat.Increasingly, components for safety-related products, such as in aircraft, made of carbon fiber reinforced plastics (CFRP) produced. For the production of such components tools (forms) are required in which the viscous resin carbon fiber scrim is cured at a temperature of about 180 ° C. In the so-called RTM (Resin Transfer Molding) process, carbon fiber textiles are placed in the mold, the mold is evacuated and then the resin is injected into the mold. After curing at about 180 ° C, the component is removed from the tool. The materials used for these molds are either C-steels or a low expansion coefficient alloy (36% nickel, Ni36 iron), which typically has a mean thermal expansion coefficient between 1.6 and 2.5 x 10 -6 K -1 .

Der Einsatz dieser RTM-Formen ist mit Schwierigkeiten und einem erheblichen Aufwand verbunden, da sich nach dem Aushärten das Bauteil schwer aus der Form wieder zu lösen ist und zusätzlich das Bauteil aufwändigen Nacharbeiten unterzogen werden muss, damit es den Ansprüchen an seine Funktion gerecht werden kann.The use of these RTM forms is associated with difficulties and a considerable effort, because after curing, the component is difficult to loosen from the mold and in addition the component must undergo extensive rework, so that it can meet the demands of its function ,

Die DE 102 58 356 offenbart die Verwendung einer Eisen-Nickel-Cobalt-Legierung mit (in Masse-%)

  • 32,5 - 34,5 Ni
  • 3,0 - 4,5% Co
  • max. 0,05% Mo
  • max.0,05% Cr
  • max. 0,009% C
  • max. 0,04 % Mn
  • max. 0,003% Si
  • max. 0,004%N
  • max. 0,01 % Ti
  • max. 0,05% P
  • 0,005 - 0,03% Al
  • max. 0,0008% Mg
  • max. 0,001% Ca
  • max. 0,03% Zr
  • max. 0,0060% O
  • Rest Fe
sowie herstellungsbedingte Verunreinigungen für Schattenmasken zum Einsatz in flachen Monitoren und Bildschirmen.The DE 102 58 356 discloses the use of an iron-nickel-cobalt alloy with (in% by mass)
  • 32.5 - 34.5 Ni
  • 3.0 - 4.5% Co
  • Max. 0.05% Mo
  • max.0,05% Cr
  • Max. 0.009% C
  • Max. 0.04% Mn
  • Max. 0.003% Si
  • Max. 0.004% N
  • Max. 0.01% Ti
  • Max. 0.05% P
  • 0.005-0.03% Al
  • Max. 0.0008% Mg
  • Max. 0.001% Ca
  • Max. 0.03% Zr
  • Max. 0.0060% O
  • Rest Fe
as well as manufacturing contaminants for shadow masks for use in flat monitors and screens.

Der Erfindung liegt die Aufgabe zu Grunde, für diese Formen eine Legierung bereitzustellen, mit der genannte Schwierigkeiten einfach überwunden werden können.The invention is based on the object to provide for these forms an alloy with which said difficulties can be overcome easily.

Diese Aufgabe wird gelöst durch die Verwendung einer Eisen-Nickel-Kobalt-Legierung im CFK-Formbau mit (in Masse %) Ni 32,5 bis 34,5 % Co > 3,0 bis 5,5 % Al 0,001 bis 0,1 % Mn 0,005 bis 0,1 % Si 0,005 bis 0,1 % C 0,005 bis 0,05 % wobei die Legierung folgende Begleitelemente mit Max.-Gehalten beinhaltet: Cr max. 0,1 % Mo max. 0,1 % Cu max. 0,1 % Ti max. 0,1 % Mg max. 0,005 % B max. 0,005 % N max. 0,006 % O max. 0,003 % S max. 0,005 % P max. 0,008 % Ca max. 0,005 % Zr max. 0,05 % bedarfsweise zusätzlich enthaltend (in Masse %) Nb in Gehalten 0,001 bis 0,1 % Rest Fe und herstellungsbedingte Beimengungen,
wobei die Legierung im Temperaturbereich von 20 bis 200°C einen mittleren Wärmeausdehnungskoeffizienten < 1,5 x 10-6/K aufweist.This object is achieved by the use of an iron-nickel-cobalt alloy in CFRP molding with (in% by mass) Ni 32.5 to 34.5% Co > 3.0 to 5.5% al 0.001 to 0.1% Mn 0.005 to 0.1% Si 0.005 to 0.1% C 0.005 to 0.05% the alloy contains the following accompanying elements with max. contents: Cr Max. 0.1% Not a word Max. 0.1% Cu Max. 0.1% Ti Max. 0.1% mg Max. 0.005% B Max. 0.005% N Max. 0.006% O Max. 0.003% S Max. 0.005% P Max. 0.008% Ca Max. 0.005% Zr Max. 0.05% If necessary, in addition containing (in% by mass) Nb in contents of 0.001 to 0.1% balance Fe and production-related admixtures,
wherein the alloy in the temperature range of 20 to 200 ° C has a mean thermal expansion coefficient <1.5 x 10 -6 / K.

Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den Unteransprüchen zu entnehmen.Advantageous developments of the subject invention can be found in the dependent claims.

Je nach Anwendungsbereich kann der Ni-Gehalt in Bereiche von 32,5 bis 33,5 % eingestellt werden.Depending on the application, the Ni content can be set in ranges from 32.5 to 33.5%.

An Begleitelementen in der zu verwendenden Legierung können vorteilhafter Weise nachstehende Elemente mit folgenden Max.-Gehalten vorgesehen werden: Cr max. 0,1 % Mo max. 0,1 % Cu max. 0,1 % Ti max. 0,1 % Mg max. 0,005 % B max. 0,005 % N max. 0,006 % O max. 0,003 % S max. 0,005 % P max. 0,008 % Ca max. 0,005 % Zr max. 0,05 %. For accompanying elements in the alloy to be used, the following elements with the following max. Contents can advantageously be provided: Cr Max. 0.1% Not a word Max. 0.1% Cu Max. 0.1% Ti Max. 0.1% mg Max. 0.005% B Max. 0.005% N Max. 0.006% O Max. 0.003% S Max. 0.005% P Max. 0.008% Ca Max. 0.005% Zr Max. 0.05%.

Eine weitere vorteilhaft einzusetzende Legierung zeichnet sich durch folgende chemische Zusammensetzung (in Masse %) aus: Ni 32,5 bis 33,5 % Co > 3,5 bis < 4,5 % Mo max. 0,05 % Cr max. 0,05 % C max. 0,009 % Mn max. 0,04 % Si max. 0,03 % S max. 0,003 % N max. 0,004 % Ti max. 0,01 % Cu max. 0,05 % P max. 0,005 % Al 0,001 bis 0,05 % Mg max. 0,0008 % Ca max. 0,003 % Zr max. 0,05 % O max. 0,005 % Rest Fe und herstellungsbedingte Beimengungen,
wobei die Legierung im Temperaturbereich von 20 bis 200°C einen mittleren Wärmeausdehnungskoeffizienten < 1,3 x 10-6/K aufweist.Another advantageous alloy to use is characterized by the following chemical composition (in mass%): Ni 32.5 to 33.5% Co > 3.5 to <4.5% Not a word Max. 0.05% Cr Max. 0.05% C Max. 0.009% Mn Max. 0.04% Si Max. 0.03% S Max. 0.003% N Max. 0.004% Ti Max. 0.01% Cu Max. 0.05% P Max. 0.005% al 0.001 to 0.05% mg Max. 0,0008% Ca Max. 0.003% Zr Max. 0.05% O Max. 0.005% Remainder Fe and production-related admixtures,
wherein the alloy in the temperature range of 20 to 200 ° C has a mean thermal expansion coefficient <1.3 x 10 -6 / K.

Vorteilhafterweise werden die Formen als Frästeil aus warmgeformtem (geschmiedetem oder gewalztem) oder gegossenem Massivmaterial herausgearbeitet und anschließend geglüht. Auch kann die Legierung in Form von Drahtmaterial, insbesondere als Schweißzusatzstoff bei der Herstellung der Form eingesetzt werden.Advantageously, the molds are machined as a milled part from thermoformed (forged or rolled) or cast solid material and then annealed. The alloy can also be used in the form of wire material, in particular as a welding additive in the production of the mold.

Ein bevorzugter Anwendungsfall für die Legierung wird im Flugzeugbau gesehen, wobei die Legierung als Formbauteil, insbesondere zur Erzeugung von CFK-Beschlägen mit der RTM-Technologie, eingesetzt werden kann. Andere Flugzeugbauteile, die ebenso in CFK-Leichtbauweise ausgeführt werden, können mit Bauteilen aus der vorgeschlagenen Legierung ebenfalls erzeugt werden.A preferred application for the alloy is seen in aircraft, wherein the alloy can be used as a molded part, in particular for the production of CFRP fittings with the RTM technology. Other aircraft components, which are also made of lightweight CFRP, can also be produced with components of the proposed alloy.

Gegenüber bisher zum Einsatz gelangenden Legierungen auf Basis von Ni 36 können Bauteile aus Formen dieser Legierung leicht entnommen werden, da die thermische Schrumpfung der Form nach dem Aushärtungsvorgang geringer ist. Durch eine geeignete Konstruktion der Form kann das Bauteil so entnommen werden, dass es seiner Funktion ohne Nacharbeiten gerecht wird.Compared to previously used alloys based on Ni 36, components made from shapes of this alloy can be easily removed since the thermal shrinkage of the mold after the curing process is lower. By a suitable design of the mold, the component can be removed so that it will fulfill its function without reworking.

Durch die einfachere Entnahme des Bauteils aus der Form wird außerdem die Lebensdauer der Form erhöht, da keine scharfkantigen Werkzeuge zum Einsatz kommen müssen, um das Bauteil aus der Form zu lösenThe easier removal of the component from the mold also increases the life of the mold, since no sharp-edged tools must be used to release the component from the mold

In der Tabelle 1 sind beispielhafte chemische Zusammensetzungen für erfindungsgemäße Eisen-Nickel-K.obalt-Legierüngen (E1, E2, E3, E4, E5, E6) im Vergleich zu weiteren untersuchten Eisen-Nickel-Kobalt-Legierungen (T1, U1) aufgelistet. Element (%) E1 E2 E3 E4 E5 E6 C 0,002 0,047 0,002 0,008 0,002 0,036 S 0,0023 0,0009 0,0006 0,0015 0,0004 0,0011 N 0,001 0,001 0,001 0,001 Cr 0,02 0,07 <0,01 <0,01 <0,01 0,01 Ni 34,20 34,25 32,75 32,80 32,80 32,55 Mn <0,01 <0,01 <0,01 <0,01 <0,01 <0,01 Si 0,07 <0,01 <0,01 <0,01 <0,01 <0,01 Mo 0,01 0,02 0,01 0,01 0,05 Ti <0,01 <0,01 <0,01 <0,01 <0,01 <0,01 Cu 0,01 <0,01 <0,01 <0,01 <0,01 <0,01 P 0,002 0,002 0,002 0,002 0,002 0,002 Al 0,004 0,007 0,001 0,005 0,005 0,014 Mg 0,0004 0,0003 0,0003 0,0003 0,0002 0,0003 Ca 0,0004 <0,001 0,0006 0,0006 0,0007 <0,001 Co 3,1 3,1 3,38 3,9 4,45 4,9 Fe Rest Rest Rest Rest Rest Rest Element (%) T1 U1 C 0,004 0,002 S 0,0008 0,0025 N 0,001 Cr 0,01 0,02 Ni 35,50 34,20 Mn 0,03 <0,01 Si 0,04 0,11 Mo 0,09 Ti <0,01 <0,01 Cu 0,05 0,01 P 0,002 0,003 Al 0,011 0,010 Mg 0,0006 0,0005 Ca 0,0002 0,0003 Co 1,44 2,3 Fe Rest Rest Table 1 lists exemplary chemical compositions for iron-nickel-cobalt alloys according to the invention (E1, E2, E3, E4, E5, E6) in comparison to other investigated iron-nickel-cobalt alloys (T1, U1) , Element (%) E1 E2 E3 E4 E5 E6 C 0,002 0.047 0,002 0,008 0,002 0,036 S 0.0023 0.0009 0.0006 0.0015 0.0004 0.0011 N 0.001 0.001 0.001 0.001 Cr 0.02 0.07 <0.01 <0.01 <0.01 0.01 Ni 34,20 34.25 32.75 32,80 32,80 32,55 Mn <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Si 0.07 <0.01 <0.01 <0.01 <0.01 <0.01 Not a word 0.01 0.02 0.01 0.01 0.05 Ti <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Cu 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 P 0,002 0,002 0,002 0,002 0,002 0,002 al 0,004 0,007 0.001 0.005 0.005 0,014 mg 0.0004 0.0003 0.0003 0.0003 0.0002 0.0003 Ca 0.0004 <0.001 0.0006 0.0006 0.0007 <0.001 Co 3.1 3.1 3.38 3.9 4.45 4.9 Fe rest rest rest rest rest rest Element (%) T1 U1 C 0,004 0,002 S 0.0008 0.0025 N 0.001 Cr 0.01 0.02 Ni 35,50 34,20 Mn 0.03 <0.01 Si 0.04 0.11 Not a word 0.09 Ti <0.01 <0.01 Cu 0.05 0.01 P 0,002 0,003 al 0.011 0,010 mg 0.0006 0.0005 Ca 0.0002 0.0003 Co 1.44 2.3 Fe rest rest

Die erfindungsgemäßen Legierungen E1-E3 sowie E6 erreichen Wärmeausdehnungskoeffizienten im Bereich von 1,5-< 2,0x10-6/K im Temperaturbereich von 20-200° C.The inventive alloys E1-E3 and E6 achieve coefficients of thermal expansion in the range of 1.5- <2.0x10 -6 / K in the temperature range of 20-200 ° C.

Die erfindungsgemäßen Legierungen E4 und E5 erzielen einen noch niedrigeren Ausdehnungskoeffizienten von etwa 1,3 x 10-6/K im Temperaturbereich von 20 und 200°C, so dass mit den Legierungen E4 und E5 eine Kombination von gesteigerter Festigkeit bei gleichzeitig niedriger Wärmeausdehnung erreicht wurde.The inventive alloys E4 and E5 achieve an even lower expansion coefficient of about 1.3 × 10 -6 / K in the temperature range of 20 and 200 ° C, so that with the alloys E4 and E5, a combination of increased strength was achieved with low thermal expansion ,

Claims (7)

  1. A use of an iron-nickel-cobalt alloy in the CFRP mould construction, comprising (in % by mass): Ni 32.5 to 34.5 % Co > 3.0 to 5.5 % Al 0.001 to 0.1 % Mn 0.005 to 0.1 % Si 0.005 to 0.1 % C 0.005 to 0.05 %
    wherein the alloy comprises maximum contents of the following by-elements: Cr max. 0.1 % Mo max. 0.1 % Cu max. 0.1 % Ti max. 0.1 % Mg max. 0.005 % B max. 0.005 % N max. 0.006 % O max. 0.003 % S max. 0.005 % P max. 0.008 % Ca max. 0.005 % Zr max. 0.05 %
    if required, additionally comprising (in % by mass) contents of Nb of 0.001 to 0.1 %
    rest Fe and production dependent admixtures,
    wherein the alloy comprises a mean thermal expansion coefficient of < 1.5 x 10-6/K in the temperature range comprised between 20 and 200°C.
  2. A use according to claim 1, comprising the following composition (in % by mass): Ni 32.5 to 33.5 % Co > 3.5 to < 4.5 % Mo max. 0.05 % Cr max. 0.05 % C max. 0.009 % Mn max. 0.04 % Si max. 0.03 % S max. 0.003 % N max. 0.004 % Ti max. 0.01 % Cu max. 0.05 % P max. 0.005 % Al 0.001 to 0.05 % Mg max. 0.0008 % Ca max. 0.003 % Zr max. 0.05 % O max. 0.005 %
    rest Fe and production dependent admixtures,
    wherein the alloy comprises a mean thermal expansion coefficient of < 1.3 x 10-6/K in the temperature range comprised between 20 and 200°C.
  3. A use according to claim 1 or 2, wherein large-size semi-finished products are used in sheet-metal, band or tube material.
  4. A use according to claim 1 or 2, wherein wire, in particular in form of a filler metal is used.
  5. A use according to claim 1 or 2 as mould part for manufacturing aircraft components made of carbon fibre reinforced plastics.
  6. A use according to claim 1 or 2 as forged parts.
  7. A use according to claim 1 or 2 as cast parts.
EP07721865.9A 2006-02-02 2007-01-26 Iron-nickel-cobalt alloy Active EP1979502B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006005252A DE102006005252B4 (en) 2006-02-02 2006-02-02 Molded part made of an iron-nickel-cobalt alloy
PCT/DE2007/000142 WO2007087786A1 (en) 2006-02-02 2007-01-26 Iron-nickel-cobalt alloy

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EP1979502A1 EP1979502A1 (en) 2008-10-15
EP1979502B1 true EP1979502B1 (en) 2014-01-22

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US (1) US20100175847A1 (en)
EP (1) EP1979502B1 (en)
JP (1) JP2009525400A (en)
CN (1) CN101379210B (en)
AT (1) AT508430B1 (en)
CA (1) CA2637499C (en)
DE (1) DE102006005252B4 (en)
ES (1) ES2330186B2 (en)
GB (1) GB2447856B (en)
WO (1) WO2007087786A1 (en)

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CN101474839A (en) * 2008-12-24 2009-07-08 西安飞机工业（集团）有限责任公司 Mold structure for molding composite material
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CA2637499A1 (en) 2007-08-09
DE102006005252B4 (en) 2010-10-28
JP2009525400A (en) 2009-07-09
AT508430A5 (en) 2011-01-15
GB2447856B (en) 2011-09-07
ES2330186A1 (en) 2009-12-04
ES2330186B2 (en) 2010-04-19
AT508430B1 (en) 2011-01-15
EP1979502A1 (en) 2008-10-15
WO2007087786A1 (en) 2007-08-09
US20100175847A1 (en) 2010-07-15
GB2447856A (en) 2008-10-01
CA2637499C (en) 2012-04-17
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CN101379210A (en) 2009-03-04
DE102006005252A1 (en) 2007-08-16

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