The effect of defects and notches in quasi-static and fatigue loading of Inconel 718 specimens produced by selective laser melting
Klas Solberg, Filippo Berto
Abstract
Additively manufactured components are likely to contain defects deriving from the manufacturing process. They are also likely to be designed with high geometric complexity (including notches), due to very few design-limitations. In order to understand the influence of these two types of geometric features, we here investigate as-built Inconel 718 specimens produced by selective laser melting under quasi-static and cyclic loading. Notched and unnotched specimens are considered, and the main emphasis is set on the influence of the defects and on how they influence the failure locations at different load levels.
Topics & Concepts
InconelSelective laser meltingMaterials scienceFatigue testingStructural engineeringProcess (computing)LaserComposite materialComputer scienceEngineeringMicrostructureOpticsAlloyOperating systemPhysicsAdditive Manufacturing Materials and ProcessesAdditive Manufacturing and 3D Printing TechnologiesWelding Techniques and Residual Stresses