About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
Microstructure Prediction Framework for Additively Manufactured Metals |
Author(s) |
Andrew Polonsky, Narendran Raghavan, McLean Echlin, Michael Kirka, Ryan Dehoff, Jonathan Madison, Tresa Pollock |
On-Site Speaker (Planned) |
Andrew Polonsky |
Abstract Scope |
The interplay between processing conditions and performance of additively manufactured (AM) parts remains an area of intense study. The wide scope of processing parameters is integral to the versatility of AM techniques, but can also create highly variable material properties. Here we present a framework for the accurate prediction of AM microstructures without extensive parametric studies. Existing models designed to predict the columnar-to-equiaxed transition (CET) are calibrated via targeted experiments using TriBeam tomography for three-dimensional characterization and thermal modelling using TRUCHAS on a sample of Inconel 718. The calibrated model is then validated against additional experimental microstructures of the same alloy. Implications of the predictive framework as well as its applicability on novel alloy formulations will also be dis |
Proceedings Inclusion? |
Planned: |