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Abstract: Additive manufacturing (AM) techniques such as directed energy deposition (DED) and powder bed fusion (PBF) allow for the creation of complex engineering parts that could not be produced otherwise by traditional manufacturing techniques. One of the critical inputs for these processes is the feedstock powder. Differences in the delivery of powder during DED and PBF leads to the formation of different types of material defects, each of which have potential consequences on component performance. In this talk, we will discuss the role of feedstock powder on AM processes and on defect formation. Furthermore, we will discuss the influence of these defects on engineering properties, and potential mitigation strategies for adverse effects.
Sandia National Laboratories is a multi-mission laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the US Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.
Sandia National Laboratories is a multi-mission laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the US Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.
Bio: Josh graduated from the UC Irvine in 2011 with a dual B.S. in materials science and engineering, and mechanical engineering. He completed his graduate studies at UC Davis, receiving an M.S. and Ph.D. in materials science and engineering in 2014 and 2015, respectively. Josh has since joined Sandia National Laboratories in Livermore, CA as a senior member of the technical staff.