Global Patent Index - EP 2716778 A4

EP 2716778 A4 20141119 - PURE TITANIUM SHEET HAVING EXCELLENT BALANCE BETWEEN PRESS FORMABILITY AND STRENGTH AND EXCELLENT CORROSION RESISTANCE, AND PROCESS FOR MANUFACTURING SAME

Title (en)

PURE TITANIUM SHEET HAVING EXCELLENT BALANCE BETWEEN PRESS FORMABILITY AND STRENGTH AND EXCELLENT CORROSION RESISTANCE, AND PROCESS FOR MANUFACTURING SAME

Title (de)

REINES TITANBLECH MIT HERVORRAGENDER BALANCE ZWISCHEN PRESSFORMBARKEIT UND FESTIGKEIT SOWIE HERVORRAGENDER KORROSIONSBESTÄNDIGKEIT UND VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

FEUILLE DE TITANE PUR AYANT UN EXCELLENT ÉQUILIBRE ENTRE UNE APTITUDE AU FAÇONNAGE À LA PRESSE ET UNE RÉSISTANCE ET UNE EXCELLENTE RÉSISTANCE À LA CORROSION ET SON PROCÉDÉ DE FABRICATION

Publication

EP 2716778 A4 20141119 (EN)

Application

EP 12793298 A 20120530

Priority

  • JP 2011120766 A 20110530
  • JP 2012074836 A 20120328
  • JP 2012063914 W 20120530

Abstract (en)

[origin: EP2716778A1] Disclosed is a pure titanium sheet including 0.02% to 0.10% of Fe and 0.04% to 0.20% of O, with the balance being titanium and inevitable impurities. The Fe and O contents satisfy a condition specified by Expression (1). Regions having Schmidt factors of {11-22}<11-23> twins of 0.45 or more are present in an area percentage of 43% or more, which Schmidt factors of the twins are determined at a depth of one-fourth the gage of the pure titanium sheet with a rolling direction as an axis. The pure titanium sheet has a beta phase volume fraction of 0.3% or less. Expression (1) is expressed as follows:

IPC 8 full level

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

CPC (source: EP KR)

C22C 14/00 (2013.01 - EP KR); C22F 1/18 (2013.01 - KR); C22F 1/183 (2013.01 - EP); F28F 21/086 (2013.01 - EP); F28F 3/046 (2013.01 - EP)

Citation (search report)

  • [XA] JP 2011025269 A 20110210 - KOBE STEEL LTD
  • [IDA] JP 2004285457 A 20041014 - KOBE STEEL LTD
  • [E] EP 2615186 A1 20130717 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
  • [A] US 2011017369 A1 20110127 - SHIRAI YOSHIHISA [JP], et al
  • [IA] Y.B. CHUN ET AL: "Role of Deformation Twinning in Cold Rolling and Recrystallization of Titanium", MATERIALS SCIENCE FORUM, vol. 495-497, 1 January 2005 (2005-01-01), pages 651 - 656, XP055145282, DOI: 10.4028/www.scientific.net/MSF.495-497.651
  • [A] BOZZOLO N ET AL: "Microstructure and microtexture of highly cold-rolled commercially pure titanium", JOURNAL OF MATERIALS SCIENCE, KLUWER ACADEMIC PUBLISHERS, BO, vol. 42, no. 7, 22 December 2006 (2006-12-22), pages 2405 - 2416, XP019481045, ISSN: 1573-4803
  • [A] BATTAINI M ET AL: "Orientation Effect on Mechanical Properties of Commercially Pure Titanium at Room Temperature", METALLURGICAL AND MATERIALS TRANSACTIONS A, SPRINGER-VERLAG, NEW YORK, vol. 38, no. 2, 28 February 2007 (2007-02-28), pages 276 - 285, XP019695709, ISSN: 1543-1940
  • [A] SIMBI ET AL: "The effect of residual interstitial elements and iron on mechanical properties of commercially pure titanium", MATERIALS LETTERS, NORTH HOLLAND PUBLISHING COMPANY. AMSTERDAM, NL, vol. 26, no. 1-2, 1 January 1996 (1996-01-01), pages 35 - 39, XP022268755, ISSN: 0167-577X, DOI: 10.1016/0167-577X(95)00204-9
  • See references of WO 2012165470A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2716778 A1 20140409; EP 2716778 A4 20141119; CN 103562421 A 20140205; JP 2013011013 A 20130117; JP 5937865 B2 20160622; KR 20140004793 A 20140113; WO 2012165470 A1 20121206

DOCDB simple family (application)

EP 12793298 A 20120530; CN 201280025980 A 20120530; JP 2012063914 W 20120530; JP 2012074836 A 20120328; KR 20137031469 A 20120530