About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing of Metals: Applications of Solidification Fundamentals
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Presentation Title |
Phase Selection of Intermetallic Compounds for an Al-10Ce-8Mn (wt.%) Alloy |
Author(s) |
Kevin D. Sisco, Suresh Babu, Alex Plotkowski |
On-Site Speaker (Planned) |
Kevin D. Sisco |
Abstract Scope |
Additive manufacturing allows the ability to control the thermal gradient (G) and solidification velocity (V) at each voxel in a part. Using the G and V from thermal models we can implement the interface response function (IRF) discussed by Kurz and Trivedi. The IRF can be modified to directly compute thermodynamic terms from Gibbs free energy databases, which allow the undercooling of a phase to be determined. With the development of new aluminum alloys, such as Al-10Ce-8Mn (wt.%), the ability to determine phase selection can assist in selecting a desirable microstructure. Solidification phase selection can manipulate the mechanical properties and microstructure stability of an alloy. There are challenges yet to be addressed including the stoichiometry of intermetallic phases. In this talk, the Al-10Ce-8Mn system is used as a template for discussion because of the ability to manipulate the primary solidification phases: Al<sub>10</sub>Mn<sub>2</sub>Ce, Al<sub>20</sub>Mn<sub>2</sub>Ce, and a eutectic FCC Al + Al<sub>20</sub>Mn<sub>2</sub>Ce. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Solidification, Aluminum |