Large-Scale Phase-Field Simulations of Directional Solidified Ternary Eutectics Using High-Performance Computing

J. Hötzer (), M. Kellner (), P. Steinmetz (), J. Dietze () and B. Nestler ()
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J. Hötzer: Karlsruhe Institute of Technology (KIT), Institute of Applied Materials, Reliability of Components and Systems (IAM-ZBS)
M. Kellner: Karlsruhe Institute of Technology (KIT), Institute of Applied Materials, Reliability of Components and Systems (IAM-ZBS)
P. Steinmetz: Karlsruhe Institute of Technology (KIT), Institute of Applied Materials, Reliability of Components and Systems (IAM-ZBS)
J. Dietze: Karlsruhe Institute of Technology (KIT), Institute of Applied Materials, Reliability of Components and Systems (IAM-ZBS)
B. Nestler: Karlsruhe Institute of Technology (KIT), Institute of Applied Materials, Reliability of Components and Systems (IAM-ZBS)

A chapter in High Performance Computing in Science and Engineering ´16, 2016, pp 635-646 from Springer

Abstract: Abstract The combination of different chemical elements allows to obtain new and improved materials, as required for novel applications. Especially directionally solidified multicomponent eutectic alloys exhibit a wide range of patterns in the microstructure, which are correlated to the mechanical properties. The pattern formation during solidification depends on the chemical elements and the applied process parameters. Large-scale phase-field simulations are used to study the pattern formation of directional solidified ternary eutectics. Three different systems, starting from a model system towards the system Al-Ag-Cu are investigated, using three growth velocities. The three-dimensional simulation results are quantitatively compared and a broad variety of arising patterns for the studied systems is found. The results of the velocity variation follow the predictions from the analytic Jackson-Hunt approach.

Date: 2016
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DOI: 10.1007/978-3-319-47066-5_43

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