About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing of Metals: Applications of Solidification Fundamentals
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Presentation Title |
Rationalization of Interphase Instabilities during Thermo-Mechanical Gyrations Typical to Metal Additive Manufacturing |
Author(s) |
Jennifer Wolk, Zoran Sterjovski, Simon P Ringer, Sudarsanam S. Babu |
On-Site Speaker (Planned) |
Jennifer Wolk |
Abstract Scope |
Overarching goal of this multidisciplinary research initiative is to address the deficiencies in physical metallurgy of additive manufacturing (AM) of metals and alloys. In specific, the stability of phases, liquid-solid (l/s) interfaces, solid-solid (s/s) interfaces, and their plastic instabilities under thermo-mechanical gyrations typical to that of AM are being studied, using model structural materials such as titanium and nickel base alloys. In the research the following fundamental questions are being addressed: (1) Will there be a local equilibrium at the interfaces with thermal gradient? (2) Are the interface response function theories applicable for multicomponent systems? (3) How does the solid/solid interface move under thermal gradients? In addition to the above questions, plastic instabilities in two phase mixtures need to be described under similar thermo-mechanical gyrations. Research so far has shown that for certain AM boundary conditions the theories of solidification and solid-state transformations need to be modified (MURI-AUSMURI Keynote). |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Solidification, Phase Transformations |