Powder nickel alloy VDM® 738 LC

for the aerospace industry

VDM® Powder 738LC is the low carbon powder variant of a precipitation hardenable nickel-base alloy for use in additive manufacturing. The alloy is strengthened mainly through the precipitation of ’-phase with Ni3(Al, Ti). VDM® Powder 738LC is characterized by: spherical particles with low level of satellites high purity and reproducibility level low oxygen content small amount of porosity good flowability high apparent and tap density VDM® Powder 738LC microstructure consists primarily out of a -phase matrix and the ′ intermetallic phase of the form Ni3Al. The solid solution elements present are chromium, cobalt, tungsten and tantalum; these equally contribute to the structural stability of the alloy. Carbides and borides form the main grain boundary strengtheners. VDM® Powder 738LC can be used for a wide range of processes: Laser based additive manufacturing Electron beam based additive manufacturing Coatings Direct energy deposition Overlay welding Cold and hot isostatic pressing (CIP / HIP) VDM® Powder 738LC can be used for many demanding applications. Originally, it was developed and used for static and rotating components in aircraft turbines such as housings, mounting elements and turbine blades and vanes because of the excellent oxidation resistance.