Macrostructure and mechanical behavior of inconel 718 superalloy fabricated by a blown powder laser deposition additive manufacturing process
Date of Award
Master of Science in Engineering (MSE)
Mechanical and Aerospace Engineering
Judith A. Schneider
Sherri L. Messimer
Additive manufacturing (AM) has become a process of great interest to the aerospace world for its potential of fabricating near net shape parts with unique complex geometries. As certain components are being proven to be able to be manufactured with suitable material properties on smaller scale systems, engineers are looking to scale up the size of manufactured components for larger systems. While powder bed AM is limited to the size of components that can be built in the box, other methods can be used to print larger components. This study looks at blown powder AM which is scalable to larger structures. This thesis evaluates the material property data and characterization of an Inconel 718 superalloy fabricated using a blown powder laser deposition (BPLD) AM process. A detailed metallographic evaluation was made of the resulting macrostructure. Tension and fatigue tests were used to determine the mechanical properties of the material.
Hill, Chris, "Macrostructure and mechanical behavior of inconel 718 superalloy fabricated by a blown powder laser deposition additive manufacturing process" (2018). Theses. 262.