| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
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| Symposium
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Phase Transformations and Microstructure Evolution during Post-Processing of Additively Manufactured Metals
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| Presentation Title |
Microstructure Engineering of Specialty Alloys via Post Advanced Manufacturing Thermal Treatments |
| Author(s) |
Sophie Primig |
| On-Site Speaker (Planned) |
Sophie Primig |
| Abstract Scope |
The inherent inhomogeneity and cyclic thermal loading in metal additive manufacturing (AM) are known to significantly change the evolution and hierarchy of microstructures when compared to traditional processing routes. However, the same AM characteristics may enable targeted microstructure and property control once the current fundamental understanding of the underlying mechanisms has been extended.
In my own research as part of a recent multidisciplinary AUSMURI project, we have made exciting discoveries that enable engineering of microstructures for property control both during AM and post-AM thermal treatments.
This talk will showcase selected recent examples of microstructure engineering in specialty alloys that been achieved via systematic variations of the AM scanning strategy followed by short post-AM thermal treatments. Targeted variations of the grain boundary character distribution, global and local phase transformation behavior, texture evolution, and nanoprecipitation in Ni-based superalloy Inc738 and stainless steels 316L and 17-4 PH will be discussed. |