|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Frontiers in Solidification Science and Engineering
||Analysis of Microstructure Rearrangement Processes during Velocity Variations of Directionally Solidified Eutectic Alloys
||Johannes Hötzer, Philipp Steinmetz, Michael Kellner, Anne Dennstedt, Britta Nestler
|On-Site Speaker (Planned)
During the directional solidification of eutectic alloys different patterns in the microstructure form depending on the solidification velocity.
The patterns and their size are directly related to the properties of the material.
Dynamic velocity changes allow to gain new composite materials combining different properties at different spatial areas.
The rearrangement process of the microstructure during such velocity changes is of high technical and scientific interest.
To investigate these microstructure evolutions in 3D, large scale and massive parallel phase-field simulations are conducted.
To analysis the rearrangement processes, a novel graph based analysis method is applied to study the microstructure adjustment.
To study these, different velocity changes during the directional solidification of binary eutectic NiAl-34Cr and of ternary eutectic Al-Ag-Cu are analyzed.
Further, the same graph based method is used to investigate synchrotron tomography data of 3D reconstructed experimental samples of directionally solidified ternary eutectic Al-Ag-Cu containing a velocity decrease.
||Planned: Supplemental Proceedings volume