TITANIUM ALUMINIDEs     product overview 

Ingots made from Titanium Aluminide are manufactured by melting consumable electrodes once or multiple times with the respective target composition in the vacuum arc furnace (VAR). A part of this ingot is re-fused in the VAR skull melter, homogenized, and poured out into molded parts in a centrifugal casting process or gravity casting. Depending on the requirements, these molded parts can be hot isostatic pressed (HIP) into non-porous semi-finished products and heat-treated to set specified structures. Mechanical processing according to a drawing can be done by customer request.

With the cold wall induction crucible furnace (ISM, Induction Skull Melter), an effective technology for recycling qualified waste materials is available. The waste materials fused and homogenized in the ISM can be poured off into molded parts and processed further, just like the VAR SM process.

Sheets, rods, and profiles can be manufactured from cast TiAl semi-finished products using extrusion presses or rollers. 

Product	Typical dimensions*
remelt stocks	approx. ø 30 - 150 mm, length up to 600 mm
forging stocks	approx. ø 30 - 80 mm, length up to 400 mm
feed stocks for mechanical processing	approx. ø 30 - 80 mm, length up to 400 mm
EIGA electrodes for spraying powder	approx. ø 50 - 80 mm, length up to 600 mm
ingots	approx. ø 180 - 300 mm, length up to 1,400 mm
sheets	200 x 300 x 0.5 mm (larger formats by request)
Extruded rods and profiles	approx. ø 20 - 90 mm, length variable
gas atomized spherical powders	< 45 µm for metal injection molding (MIM) > 25 µm - 80 µm for laser beam based powder fusion (SLM, DMLS) > 45 µm - 150 µm for electron beam based powder bed fusion technologies (EBM)

*other dimensions by request

alloy overview Titanium aluminides

GfE manufactures titanium alloys according to customer specification as a matter of principle. The following alloys are part of the standard range (specifications in at%) and are listed as helpful examples.