Wednesday  |  Allegheny  |  09:20 AM–09:40 AM

#13385, Evaluation of Microstructure and Dynamic Behavior Response of 304L Stainless Steel Produced via Additive Friction-Stir Deposition

In this research, the feasibility of using additive friction stir deposition (AFSD) to deposit stainless steel 304L is examined. Multiple layers of 304L materials were deposited on a 304L plate. Tensile specimens were extracted from the deposited component in longitudinal and build direction to evaluate the quasi-static and high-rate tensile strength and to characterize microstructure evolution. The AFSD component was fully dense and exhibited a highly refined grain structure as compared to the feedstock. Continuous bonding at the interfacial layers was observed with no evidence of cracks or porosity. The AFSD material exhibited grain refinement and wrought-like mechanical properties when compared to the feedstock rods.

Malcolm Williams   The University of Alabama
Christopher Williamson   The University of Alabama
Brett Tucker Roper   The University of Alabama
Harish Rao   The University of Alabama
Ryan Kinser   The University of Alabama
Paul Allison   Manufacturing at the Point-of-Need Center
James Jordon   Manufacturing at the Point-of-Need Center