About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Nano/Micro-mechanics and Length-scale Phenomena
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Presentation Title |
The Effect of Microstructural Features on the Mechanical Properties of Additively Manufactured Metals and Alloys |
Author(s) |
Ajit Achuthan |
On-Site Speaker (Planned) |
Ajit Achuthan |
Abstract Scope |
The additive manufacturing (AM) technologies of metals and alloys produce highly heterogeneous microstructures consisting of grains and subgrain features of various characteristic length scales. This is due to the relatively high cooling rates of AM. Thus, AM offers a unique opportunity to generate optimal microstructures that produce desirable sets of local mechanical properties. Leveraging this opportunity requires the development of a better understanding of the process-microstructure-properties relationship. In this talk, we present recent advances made in understanding the effect of microstructural features on mechanical properties of additively manufactured metals and alloys. We specifically discuss the effect of cellular subgrain features of 316L stainless and the lamellar subgrain features of Ti6Al4V formed in direct energy deposition (DED) AM. New insights gained from an in-situ characterization study of the deformation at microscopic length scale and the development of constitutive models that account for the effect of cellular subgrain features will be presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Mechanical Properties, Modeling and Simulation |