|About this Abstract
||Materials Science & Technology 2020
||Additive Manufacturing: Qualification and Certification
||Simulation of the Effect of Texture on Anisotropy in SLM-Produced IN718 Microstructures
||Wesley A. Tayon, Saikumar Yeratapally, Joseph Pauza, Anthony Rollett, Jacob Hochhalter
|On-Site Speaker (Planned)
||Wesley A. Tayon
As the aerospace community seeks to use additively manufactured components, it is crucial to understand the role crystallographic texture has on part performance. Strong textures are associated with highly anisotropic material response. Often, thermal processing conditions in additive manufacturing lead to highly elongated grains with a dominant texture. Selective laser melting (SLM) is perhaps one of the most common metal additive manufacturing methods capable of producing lower cost, complex part designs. The SLM process offers the capability to 3D print nickel-based superalloys for applications such as high-temperature engine components. In this study, a kinetic Monte-Carlo grain growth and texture simulation code (SPPARKS), was used to simulate Inconel (IN) alloy 718 microstructures across several SLM build conditions. The synthetic IN718 microstructures were input into both crystal plasticity finite element and fast Fourier transform models to assess the impact of texture and grain morphology on anisotropy at the grain scale.