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Materials Science Research Lecture

Wednesday, November 3, 2021
4:00pm to 5:00pm
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Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Multiscale Characterization of Metallic Alloy Solidification Dynamics
Amy Clarke, Professor, Department of Metallurgical and Materials Engineering, Colorado School of Mines,

NOTE: At this time, in-person Materials Research Lectures are open to all Caltech students/staff/faculty/visitors with a valid Caltech ID. Outside community members are welcome to join our online webinar.

Webinar Link:

https://caltech.zoom.us/j/83276652110

Webinar ID: 832 7665 2110

Abstract:

The solidification of metallic alloys is spatially and temporally multiscale. Although combinations of thermal gradient and solid/liquid interface velocity are known to dictate microstructure (and defect) development, significant opportunity exists to study multiscale solidification dynamics during processing with novel tools and unique probes available in the laboratory and at national user facilities. Here the use of x-rays, protons, neutrons, and electrons is highlighted for the multiscale characterization of metallic alloy solidification dynamics relevant to casting, directional solidification, and additive manufacturing. Multiscale in-situ/ex-situ characterization is compared to process modeling and solidification theory and modeling. The new knowledge gained is aiding in the prediction and control of metallic alloy solidification dynamics by advanced manufacturing.

More about the Speaker:

Amy J. Clarke is a Professor, Co-Director of the Center for Advanced Non-Ferrous Structural Alloys - a National Science Foundation Industry/University Cooperative Research Center, and a faculty member with the Advanced Steel Processing and Products Research Center in the George S. Ansell Department of Metallurgical and Materials Engineering at the Colorado School of Mines (Mines). She holds joint appointments with Pacific Northwest National Laboratory in the Nuclear Sciences Division and Los Alamos National Laboratory (LANL) in the Materials Science and Technology Division and is a Guest Scientist in Sigma Division at LANL. She received her MS and PhD degrees from Mines and her BS degree at Michigan Technological University in Metallurgical and Materials Engineering. Her research focuses on physical metallurgy and making, measuring, and modeling metallic alloys during processing to realize advanced manufacturing. Amy serves on The Minerals, Metals & Materials Society (TMS) Foundation Board of Trustees, has served on the TMS and Association for Iron & Steel Technology Boards of Directors, and is an Editor for Metallurgical and Materials Transactions A. She is a recipient of the Presidential Early Career Award for Scientists and Engineers – the highest honor bestowed by the U.S. government on outstanding scientists and engineers in the early stages of their independent research careers, an Office of Naval Research Young Investigator Program, and U.S. Department of Energy Office of Science Early Career Research Program, is a TMS Brimacombe Medalist, and a Fellow of ASM International.

For more information, please contact Jennifer Blankenship by email at jennifer@caltech.edu.