EP 1002882 A1 20000524 - A beta titanium alloy
Title (en)
A beta titanium alloy
Title (de)
Legierung auf Titan-Basis mit Beta-Stuktur
Title (fr)
Une alliage de titane de phase beta
Publication
Application
Priority
GB 9824611 A 19981111
Abstract (en)
A beta titanium alloy comprises 25wt% vanadium, 15wt% chromium, 2wt% aluminium, up to 0.15wt% oxygen, 0.1 to 0.3wt% carbon and the balance titanium plus incidental impurities. The carbon is present in the form of titanium carbide precipitates distributed throughout the beta titanium alloy matrix, the titanium carbide precipitates refine the grain size of the beta titanium alloy matrix and remove oxygen from the beta titanium alloy matrix to reduce precipitation of alpha titanium in the beta titanium alloy matrix to increase the ductility of the beta titanium alloy. The alloy is useful for gas turbine engine compressor blades (10), compressor vanes, compressor casings etc.
IPC 1-7
IPC 8 full level
C22C 14/00 (2006.01)
CPC (source: EP US)
C22C 14/00 (2013.01 - EP US)
Citation (search report)
- [A] US 5759484 A 19980602 - KASHII HIDEAKI [JP], et al
- [A] US 5176762 A 19930105 - BERCZIK DOUGLAS M [US]
- [A] LI, Y.G. (UNIVERSITY OF BIRMINGHAM (UK)) ET AL: "Order-disorder transformation and deformation structure in beta TiVCrAl alloys.", ELECTRON MICROSCOPY 1998. VOLUME 2. MATERIALS SCIENCE 1 (1998), 59-60, PHOTOMICROGRAPHS, 3 REF. INSTITUTE OF PHYSICS PUBLISHING. TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, BS1 6NX, UK CONFERENCE: 14TH INTERNATIONAL CONGRESS ON ELECTRON MICROSCOPY, CANCUN,, XP002128835
- [A] LI, Y.G. (UNIVERSITY OF BIRMINGHAM (ENGLAND)) ET AL: "Effect of aluminium on ordering of highly stabilised beta -Ti-V-Cr alloys", MATERIALS SCIENCE AND TECHNOLOGY (AUG. 1998) 14, (8), 732-737, PHOTOMICROGRAPHS, DIFFRACTION PATTERNS, 15 REF. ISSN: 0267-0836, XP002128836
- [A] LI, Y.G. (UNIVERSITY OF BIRMINGHAM (ENGLAND)) ET AL: "Structure and stability of precipitates in 500 deg C exposed Ti-25V-15Cr-xAl alloys.", ACTA MATERIALIA (1998) 46, (16), 5777-5794, PHOTOMICROGRAPHS, DIFFRACTION PATTERNS, NUMERICAL DATA, GRAPHS, 11 REF. ISSN: 1359-6454, XP002128837
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1002882 A1 20000524; EP 1002882 B1 20021211; DE 69904430 D1 20030123; DE 69904430 T2 20031030; GB 9824611 D0 19990106; US 2002108682 A1 20020815; US 2006021680 A1 20060202; US 2010047076 A1 20100225
DOCDB simple family (application)
EP 99308274 A 19991020; DE 69904430 T 19991020; GB 9824611 A 19981111; US 13946605 A 20050531; US 35029309 A 20090108; US 42703299 A 19991026