GEORGIA INSTITUTE OF TECHNOLOGY

Under the provisions of the regulations for the degree

DOCTOR OF PHILOSOPHY

on Monday, November 20, 2017

8:00 AM
in Love 210

will be held the

DISSERTATION PROPOSAL DEFENSE

for

Xinyi Gong

"Structure Property Linkages for Additively Manufactured Titanium Alloys using High Throughput Assays"

Committee Members:

Prof. Surya R. Kalidindi, MSE (Advisor)

Prof. David McDowell, MSE

Prof. Preet M. Singh, MSE

Prof. Hamid Garmestani, MSE

Prof. Richard W. Neu, ME

Abstract:

Recent advances in additive manufacturing (AM) reveal exciting opportunities to build materials with novel internal structures combined with intricate part geometries that cannot be achieved by traditional manufacturing approaches. The large space of potential material chemistries combined with non-equilibrium microstructures produced by enormous number of possible parameter combinations in AM presents a significant challenge for a systematic exploration and optimization of the final properties exhibited by AM parts. High throughput assays that are customized for AM, especially for its flexibility in spatial control, need to be developed to quickly and reliably determine structure property linkages for a variety of AM processes. The work proposed a set of protocols on various titanium alloys that can be used to screen a large library of material chemistries and different process histories in small sample volumes to establish associated structures property linkages in a high throughput manner.