About this Abstract |
Meeting |
6th World Congress on Integrated Computational Materials Engineering (ICME 2022)
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Symposium
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6th World Congress on Integrated Computational Materials Engineering (ICME 2022)
|
Presentation Title |
ICME of Additively Manufactured Metals:
New Computational Tools and the Central Role of Materials Data
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Author(s) |
Alexander Chadwick, Christopher Hareland, Peter W. Voorhees |
On-Site Speaker (Planned) |
Peter W. Voorhees |
Abstract Scope |
The materials design process requires links between processing conditions and the resulting microstructure. We illustrate two approaches to coupling the processing conditions of additive manufacturing (AM) to microstructure. A phase field model has been developed that follows the evolution of thousands of grains in three dimensions as a heat source propagates along a surface at the high rates seen during AM. Through this approach it is possible to determine the effects of the solidification conditions, the weld pool geometry, and multiple passes of the heat source on the resulting grain morphology. The multicomponent nature of engineering alloys presents opportunities, along with the flexibility of AM processing, to choose an alloy composition and processing path that achieves the desired microstructure. A model for rapid solidification of multicomponent alloys that accounts for the nonideal nature of liquid diffusion and phase equilibrium will be presented. |
Proceedings Inclusion? |
Definite: Other |