In Situ X-ray Diffraction During Simulated Build Conditions And Post-Build Processing of PBF Ti6Al4V

Additive Manufacture offers cost/waste reduction and unique geometries formetals, but AM Ti64 still requires heat treatment due to its distinct, as-built microstructure from rapid cooling, which differs from conventionally wroughtmaterial. 

Research focuses on mapping its thermal transformations and simulating rapid heating during printing.

BIO:

After earning his Bachelor's in Physics in 1993 and a Ph.D. in Physics in 1998 from Penn State University, where his dissertation focused on using x-ray and neutron scattering techniques to characterize materials confined to nano-voids, he began his professional career as a postdoc at the neutron scattering center at Los Alamos National Laboratory (LANL).

Since 2003, he has been the co-instrument scientist of the Spectrometer for Materials Research at Temperature and Stress (SMARTS). SMARTS was the first neutron scattering instrument designed for the study of engineering materials, built upon a philosophy of studying material response to conditions simulating operation and/or processing. He has extended this philosophy to include large-scale x-ray scattering facilities like the Advanced Photon Source at Argonne National Lab.

His work has primarily focused on nuclear weapons and energy materials, but also includes components of aerospace, automotive, and functional materials. Most recently, his research has expanded to include in-situ processing and performance of additively manufactured materials.

He is now a Senior Scientist at LANL and the Materials Scattering Team Leader in the Materials Science and Technology Division, with approximately 270 co-authored publications and an h-index of 52.