EP 0024984 B1 19841219 - PROCESS OF MAKING TITANIUM ALLOY ARTICLES BY POWDER METALLURGY
Title (en)
PROCESS OF MAKING TITANIUM ALLOY ARTICLES BY POWDER METALLURGY
Publication
Application
Priority
FR 7921441 A 19790827
Abstract (en)
[origin: US4381942A] The invention relates to a process for the production of titanium-based alloy members by powder metallurgy. This process consists of: (a) preparing a titanium or titanium alloy powder having a grain size distribution between 100 and 1000 mu m, (b) depositing on said powder a coating of a material such that on contact with the titanium or titanium alloy it forms a liquid phase at a temperature T1 which is below the allotropic transformation temperature T of the titanium or titanium alloy constituting the said powder, (c) introducing the thus coated powder into a mould, and (d) hot compressing this powder in the mould at a pressure of 10 to 30 MPa at a temperature between T1 and T for a time such that a complete densification of the powder is obtained. Application to the construction of discs for turbines with integrated blades.
IPC 1-7
IPC 8 full level
B22F 1/17 (2022.01)
CPC (source: EP US)
B22F 1/17 (2022.01 - EP US)
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 0024984 A1 19810311; EP 0024984 B1 19841219; DE 3069828 D1 19850131; FR 2464112 A1 19810306; FR 2464112 B1 19830114; US 4381942 A 19830503
DOCDB simple family (application)
EP 80401206 A 19800822; DE 3069828 T 19800822; FR 7921441 A 19790827; US 18050380 A 19800822