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Additive Manufacturing of Austenitic Oxide Dispersion Strengthened Alloy Using Powder Feedstock Gas-atomized with Elemental Yttrium via Laser Directed Energy Deposition

Creator:

Yang, Seongun

Abstract:

This study investigates the microstructure and mechanical properties of an austenitic Oxide Dispersion Strengthened (ODS) steel produced by the Laser Directed Energy Deposition (LDED) process using powder feedstock atomized with elemental yttrium. The Microstructure of the samples was characterized by electron microscopy, and mechanical properties were measured using a tensile...

Resource Type:

Masters Thesis

Full Text:

and challenges. Journal of Materials Science, 56, 64-107. [8] Grandhi, M., Ma, C., Liu, Z., &
Numerical Characterization and Modeling Uncertainty of Frame-Spine and Frame-Spine-FLC Full-Scale Specimens Tested at E-Defense Shake-Table

Creator:

Astudillo, Bryam

Abstract:

The characterization of the seismic performance of structures relies on numerical simulations. However, estimates of seismic response are subject to various sources of uncertainty, including modeling uncertainty. This research estimated the response of two full-scale structural specimens composed of a moment resisting frame, elastic spines, and force-limiting connections (FLC), which...

Resource Type:

Masters Thesis

Full Text:

Astudillo Carpio for the degree of Master of Science in Civil Engineering presented on March 18, 2022