EP 3601628 A1 20200205 - METASTABLE TITANIUM ALLOY, TIMEPIECE SPRING MADE FROM SUCH AN ALLOY AND METHOD FOR PRODUCTION THEREOF
Title (en)
METASTABLE TITANIUM ALLOY, TIMEPIECE SPRING MADE FROM SUCH AN ALLOY AND METHOD FOR PRODUCTION THEREOF
Title (de)
METASTABILE TITANLEGIERUNG, AUS SOLCH EINER LEGIERUNG HERGESTELLTE UHRFEDER UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
ALLIAGE DE TITANE ß METASTABLE, RESSORT D'HORLOGERIE A BASE D'UN TEL ALLIAGE ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- FR 1752503 A 20170324
- EP 2018056440 W 20180314
Abstract (en)
[origin: WO2018172164A1] The invention relates to a metastable β titanium alloy comprising, by weight percent, between 24 and 45% niobium, between 0 and 20% zirconium, between 0 and 10% tantalum and/or between 0 and 1.5% silicon and/or less than 2% oxygen, said alloy being characterized in that it has a crystallographic structure comprising; - a mix of austenitic phase and alpha phase, and - a presence of omega phase precipitates the volume fraction of which is less than 10%. The invention also relates to a timepiece spring made from such an alloy and a method for producing such a spring.
IPC 8 full level
C22C 14/00 (2006.01); C22F 1/18 (2006.01)
CPC (source: EP KR RU US)
B21F 3/08 (2013.01 - KR); C22C 14/00 (2013.01 - EP KR RU US); C22F 1/18 (2013.01 - EP); C22F 1/183 (2013.01 - EP KR RU US); G04B 17/06 (2013.01 - RU); G04B 17/066 (2013.01 - KR US); G04B 17/34 (2013.01 - RU); C21D 2211/001 (2013.01 - KR); G04B 17/066 (2013.01 - EP)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018172164 A1 20180927; CN 110573636 A 20191213; CN 110573636 B 20220408; EP 3601628 A1 20200205; EP 3601628 B1 20220504; FR 3064281 A1 20180928; FR 3064281 B1 20221111; FR 3126511 A1 20230303; FR 3126511 B1 20240329; JP 2020515720 A 20200528; JP 7169336 B2 20221110; KR 102488776 B1 20230113; KR 20190131517 A 20191126; KR 20220156678 A 20221125; RU 2019133673 A 20210426; RU 2019133673 A3 20210603; RU 2764070 C2 20220113; US 11913106 B2 20240227; US 2020308685 A1 20201001
DOCDB simple family (application)
EP 2018056440 W 20180314; CN 201880020510 A 20180314; EP 18717524 A 20180314; FR 1752503 A 20170324; FR 2208629 A 20220829; JP 2020501590 A 20180314; KR 20197030323 A 20180314; KR 20227040415 A 20180314; RU 2019133673 A 20180314; US 201816497327 A 20180314