|About this Abstract
||10th International Symposium on Superalloy 718 and Derivatives (2023)
||Superalloy 718 and Derivatives
||Local Assessment of Mechanical Properties in Forged Alloy 718 Components Based on the Simulation of the Microstructure Evolution During Production
||Christian Gruber, Peter Raninger, Aleksandar Stanojevic, Flora Godor, Hans-Peter Gänser, Stefan Marsoner, Martin Stockinger
|On-Site Speaker (Planned)
The characterization of local and global fracture mechanical properties is carried out with destructive testing methods and is increasingly required in the specifications of forgings. Especially in the case of alloy 718 aircraft parts, the numerical estimation of local material properties is essential for lightweight design, geometry optimization and a significant reduction of development and experimental characterization costs. This leads to a demand for numerical models to capture initial microstructural inhomogeneities, describe the forming history and reflect the local microstructure and properties of the final product.
Therefore a digital twin for the complex forging process was developed in order to reproduce and evaluate the resulting local microstructure across the complete process chain. Since the microstructure determines the mechanical properties like yield stress and fracture toughness, a dedicated model was implemented to describe the local evolution of the relevant microstructural features.
||Definite: At-meeting proceedings