EP2075349A3 - Titanium aluminide alloys - Google Patents

Titanium aluminide alloys Download PDF

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Publication number
EP2075349A3
EP2075349A3 EP08020431A EP08020431A EP2075349A3 EP 2075349 A3 EP2075349 A3 EP 2075349A3 EP 08020431 A EP08020431 A EP 08020431A EP 08020431 A EP08020431 A EP 08020431A EP 2075349 A3 EP2075349 A3 EP 2075349A3
Authority
EP
European Patent Office
Prior art keywords
phase
alloys
lamella
atomic
composition
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
EP08020431A
Other languages
German (de)
French (fr)
Other versions
EP2075349B1 (en
EP2075349A2 (en
Inventor
Michael Oehring
Fritz Appel
Jonathan Paul
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.)
Helmholtz Zentrum Geesthacht Zentrum fuer Material und Kustenforschung GmbH
Original Assignee
GKSS Forshungszentrum Geesthacht GmbH
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 GKSS Forshungszentrum Geesthacht GmbH filed Critical GKSS Forshungszentrum Geesthacht GmbH
Priority to EP09010152.8A priority Critical patent/EP2145967B1/en
Priority to EP11187502.7A priority patent/EP2423341B1/en
Publication of EP2075349A2 publication Critical patent/EP2075349A2/en
Publication of EP2075349A3 publication Critical patent/EP2075349A3/en
Application granted granted Critical
Publication of EP2075349B1 publication Critical patent/EP2075349B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals
    • C22C1/0458—Alloys based on titanium, zirconium or hafnium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/047—Making non-ferrous alloys by powder metallurgy comprising intermetallic compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each 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
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon

Abstract

Die Erfindung betrifft Legierungen auf der Basis von, insbesondere unter Verwendung von schmelz- oder pulvermetallurgischen Verfahren hergestellten, Titanaluminiden, vorzugsweise auf Basis von γ (TiAl). Eine erfindungsgemäße Legierung verfügt über die Zusammensetzung Ti - (38 bis 42 Atom %) Al - (5 bis 10 Atom %) Nb, wobei die Zusammensetzung Komposit-Lamellen-Strukturen mit B19-Phase und β-Phase in jeder Lamelle aufweist, wobei das Verhältnis, insbesondere das Volumenverhältnis, der B19-Phase und β-Phase jeweils in einer Lamelle zwischen 0.05 und 20, insbesondere zwischen 0.1 und 10, beträgt.The invention relates to alloys based on titanium aluminides, in particular those produced using melt or powder metallurgical processes, preferably based on γ (TiAl). An alloy according to the invention has the composition Ti - (38 to 42 atomic%) Al - (5 to 10 atomic%) Nb, the composition comprising B19 phase and β phase composite lamellar structures in each lamella Ratio, in particular the volume ratio, the B19 phase and β-phase in each case in a lamella between 0.05 and 20, in particular between 0.1 and 10, is.

Die Legierungen zeichnen sich durch hohe Festigkeit und Kriechbeständigkeit bei gleichzeitig hoher Duktilität und Bruchzähigkeit aus.The alloys are characterized by high strength and creep resistance combined with high ductility and fracture toughness.

EP08020431.6A 2007-12-13 2008-11-25 Titanium aluminide alloys Not-in-force EP2075349B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09010152.8A EP2145967B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys
EP11187502.7A EP2423341B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007060587A DE102007060587B4 (en) 2007-12-13 2007-12-13 titanium aluminide

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP09010152.8A Division-Into EP2145967B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys
EP09010152.8A Division EP2145967B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys
EP11187502.7A Division-Into EP2423341B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys

Publications (3)

Publication Number Publication Date
EP2075349A2 EP2075349A2 (en) 2009-07-01
EP2075349A3 true EP2075349A3 (en) 2009-09-09
EP2075349B1 EP2075349B1 (en) 2016-03-09

Family

ID=40527708

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11187502.7A Not-in-force EP2423341B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys
EP09010152.8A Not-in-force EP2145967B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys
EP08020431.6A Not-in-force EP2075349B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP11187502.7A Not-in-force EP2423341B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys
EP09010152.8A Not-in-force EP2145967B1 (en) 2007-12-13 2008-11-25 Titanium aluminide alloys

Country Status (10)

Country Link
US (3) US20090151822A1 (en)
EP (3) EP2423341B1 (en)
JP (1) JP5512964B2 (en)
KR (1) KR20090063173A (en)
CN (1) CN101457314B (en)
BR (1) BRPI0806979A2 (en)
CA (1) CA2645843A1 (en)
DE (1) DE102007060587B4 (en)
IL (1) IL195756A0 (en)
RU (1) RU2466201C2 (en)

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Also Published As

Publication number Publication date
RU2466201C2 (en) 2012-11-10
IL195756A0 (en) 2009-11-18
CN101457314B (en) 2013-07-24
EP2145967B1 (en) 2013-07-24
BRPI0806979A2 (en) 2010-04-20
EP2075349B1 (en) 2016-03-09
US20090151822A1 (en) 2009-06-18
JP5512964B2 (en) 2014-06-04
DE102007060587A1 (en) 2009-06-18
CA2645843A1 (en) 2009-06-13
CN101457314A (en) 2009-06-17
EP2423341A1 (en) 2012-02-29
US20100000635A1 (en) 2010-01-07
EP2145967A3 (en) 2010-04-21
RU2008149177A (en) 2010-06-20
US20140010701A1 (en) 2014-01-09
JP2009144247A (en) 2009-07-02
EP2423341B1 (en) 2013-07-10
EP2075349A2 (en) 2009-07-01
KR20090063173A (en) 2009-06-17
DE102007060587B4 (en) 2013-01-31
EP2145967A2 (en) 2010-01-20

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