Monday  |  Executive AB  |  04:40 PM–05:00 PM

#19792, Interface Testing of Multi-Material Metallic Components Fabricated Through a Laser Powder Bed Fusion Metal Powder Binning Approach

While additive manufacturing has revolutionized the production of complex structures, fabrication of structures with multi-material compositions remains a significant challenge. This research introduces an innovative approach to streamline this process through a metal powder binning approach employed on a Laser Powder Bed Fusion (L-PBF) platform. This method involves dividing the powder material into discrete regions that remain separated during the powder spreading process. This separation allows for the rapid screening of various material combinations with appropriate AM deposition parameters, facilitating the creation of spatially graded structures with multi-material interfaces. The effectiveness of this approach was demonstrated using the EOS M290 L-PBF machine to print a range of samples, including steels (316) bonded to Ni-based alloys (718 and 625). Tensile testing results of the interface samples are presented, in addition to transition zone characterization via microscopy and microhardness testing.

Suyash Niraula   University of Louisville
Brendon Dodge   University of Louisville
Thomas Berfield   University of Louisville
Justin Gillham   University of Louisville