Global Patent Index - EP 1466028 A4

EP 1466028 A4 20050420 - METHOD FOR PROCESSING BETA TITANIUM ALLOYS

Title (en)

METHOD FOR PROCESSING BETA TITANIUM ALLOYS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON BETA-TITANLEGIERUNGEN

Title (fr)

PROCEDE DE TRAITEMENT D'ALLIAGES DE BETA TITANE

Publication

EP 1466028 A4 20050420 (EN)

Application

EP 02756143 A 20020607

Priority

  • US 0218269 W 20020607
  • US 34067101 P 20011214
  • US 16534802 A 20020607

Abstract (en)

[origin: WO03052155A1] An embodiment of the present invention comprises processing a beta titanium alloy by a method including the steps of cold working the alloy and then direct aging the alloy for a total aging time of less than 4 hours. The method may include fabricating the alloy into the article of manufacture such as, for example, a bar, wire, or a coil spring. The method may be utilized to produce articles with high tensile strength while retain ductility. The beta titanium alloy may be any beta titanium alloy, for example, the alloy comprising, by weight, 3.0 % to 4.0 % aluminium, 7.5 to 8.5 % vanadium, 5.5 to 6.5 % chromiun, 3.5 to 4.5 % molybdenum, 3.5 to 4.5 % zirconium, and titanium. The alloy may be hot worked, cold worked to provide a 5 to 60 % reduction, and irect aged for a total time of less than 4 hours.

IPC 1-7

C22F 1/18; C22C 14/00

IPC 8 full level

C22C 14/00 (2006.01); C22F 1/00 (2006.01); C22F 1/18 (2006.01)

CPC (source: EP US)

C22C 14/00 (2013.01 - EP US); C22F 1/183 (2013.01 - EP US)

Citation (search report)

  • [XY] US 6250812 B1 20010626 - UEDA KOUJI [JP], et al
  • [X] US 5358586 A 19941025 - SCHUTZ RONALD W [US], et al
  • [A] EP 0263503 A1 19880413 - NIPPON KOKAN KK [JP], et al
  • [A] US 2974076 A 19610307 - VORDAHL MILTON B
  • [A] US 2804409 A 19570827 - KESSLER HAROLD D, et al
  • [X] PATENT ABSTRACTS OF JAPAN vol. 0176, no. 32 (C - 1132) 24 November 1993 (1993-11-24)
  • [X] PATENT ABSTRACTS OF JAPAN vol. 016, no. 443 (C - 0985) 16 September 1992 (1992-09-16)
  • [XY] "Titanium: A Technical Guide, Second Edition", December 2000, ASM INTERNATIONAL, USA, ISBN: 0-87170-686-5, XP002312756
  • See references of WO 03052155A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 03052155 A1 20030626; AU 2002322053 A1 20030630; BG 108742 A 20050331; BR 0214771 A 20041214; CA 2468263 A1 20030626; CN 1602369 A 20050330; EP 1466028 A1 20041013; EP 1466028 A4 20050420; JP 2005527699 A 20050915; NO 20042923 L 20040708; PL 369514 A1 20050418; RU 2004121454 A 20050610; TW 593706 B 20040621; US 2003168138 A1 20030911

DOCDB simple family (application)

US 0218269 W 20020607; AU 2002322053 A 20020607; BG 10874204 A 20040603; BR 0214771 A 20020607; CA 2468263 A 20020607; CN 02824857 A 20020607; EP 02756143 A 20020607; JP 2003553022 A 20020607; NO 20042923 A 20040708; PL 36951402 A 20020607; RU 2004121454 A 20020607; TW 91114485 A 20020628; US 16534802 A 20020607