EP 0514293 B1 19950802 - Process for producing a workpiece in titanium alloy comprising a modified hot working stage and workpiece thus produced.
Title (en)
Process for producing a workpiece in titanium alloy comprising a modified hot working stage and workpiece thus produced.
Title (de)
Verfahren zur Herstellung eines Werkstuckes aus einer Titanlegierung mit einer modifizierten Warmverarbeitungsstufe und hergestelltes Werkstuck.
Title (fr)
Procédé de fabrication d'une pièce en alliage de titane comprenant un corroyage à chaud modifié et pièce obtenue.
Publication
Application
Priority
FR 9105988 A 19910514
Abstract (en)
[origin: EP0514293A1] With this alloy having the composition (in mass %) Mo equivalent = 5 to 13 and Al equivalent = 3 to 8, Ti and impurities = the remainder, this process comprises a hot preliminary trimming of an ingot of the said alloy giving a hot blank, then a final trimming of at least a portion of this blank, preceded by a preheating above the real beta transition (2) of the said hot-trimmed alloy, the final trimming ratio (S/s) being higher than or equal to 1.5, and dissolving and then annealing treatments are then performed on the blank of an article obtained by final trimming. The process is characterised in that the said blank is cooled from its preheating temperature (8) to a temperature (9) of start of final trimming, situated between the beta transition (2) and the appearance of the alpha phase (7). <??>The invention also relates to the article obtained for a selected composition. The fabricated articles are intended, for example, for compressor discs or aircraft propulsion systems.
IPC 1-7
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)
Designated contracting state (EPC)
AT DE FR GB SE
DOCDB simple family (publication)
EP 0514293 A1 19921119; EP 0514293 B1 19950802; AT E125881 T1 19950815; CA 2068556 A1 19921115; DE 69203791 D1 19950907; DE 69203791 T2 19951214; FR 2676460 A1 19921120; FR 2676460 B1 19930723; JP H05148599 A 19930615; JP H0798989 B2 19951025; US 5264055 A 19931123; US 5304263 A 19940419
DOCDB simple family (application)
EP 92420149 A 19920511; AT 92420149 T 19920511; CA 2068556 A 19920513; DE 69203791 T 19920511; FR 9105988 A 19910514; JP 12228292 A 19920514; US 8350893 A 19930630; US 88290092 A 19920514