About this Abstract |
Meeting |
7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
|
Symposium
|
ICME 2023
|
Presentation Title |
On the applicability of CALPHAD and process modelling to predict solidification cracking |
Author(s) |
Mustafa Megahed, Klaus Büßenschütt, Philipp Stich, Markus Apel, Ludo Bautmans, Christian Haase |
On-Site Speaker (Planned) |
Mustafa Megahed |
Abstract Scope |
L-PBF processing of non-weldable alloys remains a challenge mitigated by two approaches: Alloy optimization or design for L-PBF (e.g. Scalmalloy®), and identification of processing window avoiding typical L-PBF defects (e.g., pores) and solidification cracking.
ICME tools have been shown to support screening of alloying elements, predict process related porosity, surface defects and part scale distortion reliably. Crack modelling is less common and requires more validation. This study compares the accuracy of several solidification cracking models. 15 alloys, the behavior of which ranges from weldable to non-weldable, are studied. The hot tearing models are linked to CALPHAD and process models to provide the required alloy properties and process parameters. The results are presented and discussed comparing conclusions with literature findings. |
Proceedings Inclusion? |
Planned: Other (describe below) |