Process for the production of titanium-based alloy members by powder metallurgy

Abstract

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 T.sub.1 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 T.sub.1 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.

Dependencies are inferred from the claim text.