METHOD FOR PRODUCE A PRODUCT OF TITANIUM ALLOY OR AN INTERMETALLIC TITANIUM-ALUMINUM COMPOUND
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- SAFRAN SA
- Filing Date
- 2021-12-02
- Publication Date
- 2026-05-27
AI Technical Summary
Existing plasma arc melting/cold hearth refining (PAM-CHR) processes for titanium-based alloys and TiAl intermetallics struggle to control the microstructure orientation during solidification, leading to non-planar solidification fronts and inhomogeneous ingots, which affect mechanical properties.
A method involving plasma torch heating, controlled cooling zones, and precise drawing speed to achieve a directed microstructure, with specific length ratios and temperature ranges for cooling and heating zones to maintain a solidification front angle less than 10° perpendicular to the drawing direction.
Enables the production of titanium alloys with improved mechanical properties, allowing direct machining of parts without additional treatments by controlling the microstructure orientation and reducing alloy evaporation.