Publication Date


Document Type


Committee Members

Henry D. Young, Ph.D. (Advisor); Dino Celli, Ph.D. (Committee Member); Raghavan Srinivasan, Ph.D., P.E. (Committee Member)

Degree Name

Master of Science in Mechanical Engineering (MSME)


Additive Manufacturing (AM) methods are promising in applications where complex part geometries, exotic materials and small lot sizes are required. Aerospace manufacturing stands to use AM methods extensively in the future, and frequently requires temperature- and corrosion-resistant alloy materials such as Inconel 718. However, the microstructural evolution of Inconel 718 during additive manufacturing is poorly understood and depends on part size and shape. We studied the microstructure of Inconel 718 parts manufactured by Laser Powder Bed Fusion in order to further elucidate these dependencies. Microstructural analysis, SEM imaging, EBSD scans and Microhardness testing were performed.

Page Count


Department or Program

Department of Mechanical and Materials Engineering

Year Degree Awarded