|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Powder Materials Processing and Fundamental Understanding
||Inconel 718 Contamination in Ti6Al4V during Powder Bed Fusion
||Cory Groden, Kellen Traxel, Amit Bandyopadhyay
|On-Site Speaker (Planned)
Contaminating other metal powders is a critical problem in additive manufacturing, especially in powder bed fusion (PBF) metal printers. This occurs as some powder may remain on the printer components even after a thorough cleaning and/or may get mixed in the bulk powder at the start. When this contaminated powder is printed, the contaminant metal may cause unwanted intermetallic compounds that can cause microcracks to form. Also, a contaminant powder with a higher melting point could cause microcracks and other printing issues. In this work, Ti6Al4V powder was contaminated with 0.5%, 1.5%, and 2.5% Inconel 718 and printed using the same printing parameters of uncontaminated Ti6Al4V as it is assumed that we are unaware of the contamination. It was found that contamination with 1.5% Inconel 718 reduced the ductility by about 50% and contamination with 2.5% Inconel rendered the specimen unable to undergo any plastic deformation without catastrophic failure.
||Additive Manufacturing, Titanium, Other