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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Phase Transformations and Microstructural Evolution
Presentation Title Precipitate Size Distribution Evolution in an Additively Manufactured High Temperature Al-Cr-Zr Alloy
Author(s) Darby LaPlant, J. Hunter Martin, Tresa Pollock
On-Site Speaker (Planned) Darby LaPlant
Abstract Scope Non-equilibrium processing pathways, particularly additive manufacturing, have broadened the scope for alloy design, often resulting in unique microstructures and properties. Understanding these as-fabricated microstructures, as well as their kinetic evolution and phase transformation due to thermal processing is essential to deepen understanding of new alloys and optimize their properties for industrial service. This talk will focus on the analysis of an additively manufactured Al-Cr-Zr alloy, for high temperature (150-350C) applications, to better understand its as-fabricated and heat-treated microstructure. Small- and wide-angle X-ray scattering spectra are utilized to determine the temporal evolution of the temperature stable, strengthening precipitates in this alloy, focusing on their size distribution and phase structure during in situ heat treatment with correlation to resulting mechanical properties.
Proceedings Inclusion? Planned:

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