|About this Abstract
||7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
||Microstructural Evolution During Closed Die Forging of UDIMET720 and Prediction of Mechanical Properties
||Christian Gruber, Flora Godor, Aleksandar Stanojevic, Jürgen Krobath, Peter Raninger, Martin Stockinger
|On-Site Speaker (Planned)
The use of UDIMET720 (U720) in next generation aero engines requires numerical tools to predict the microstructure evolution and final mechanical properties of closed die forged engine disks. An existing simulation tool for a different superalloy, which uses integrated computational materials engineering (ICME) to predict characteristic properties such as grain size and yield strength, is used and parametrized on the microstructural mechanisms of U720. The specific setting of a homogeneous grain size distribution through metal-physical understanding of the recrystallization processes and the formation of the necessary γ'-precipitate-populations is elaborated. Inhomogeneous microstructure distributions in the pre-material and their effect on the local microstructure and property evolution along the process route are taken into account. Based on specific material characterization and testing the scientifically sound and application-oriented design tool is optimized and includes all essential mechanisms of an U720 turbine disk manufacturing.