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CANCELLED: HEMI Seminar: Amy J. Clarke (Colorado School of Mines)

March 27, 2020 @ 11:00 am - 12:00 pm

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The Whiting School and Johns Hopkins University’s approach to the COVID-19 epidemic is guided by our commitment to the safety and security of our community, our constituents, and our visitors.  With that, we have determined it is prudent to cancel or postpone any Whiting sponsored events or activities, on or off campus, that involve 25 people or more until at least April 12th.

Unfortunately, that means that the following event will be cancelled.

We sincerely apologize for any inconvenience this might cause.


New Insights into Metallic Alloy Microstructural Evolution by Multiscale In-situ/Ex-situ Characterization

Amy J. Clarke

George S. Ansell Department of Metallurgical and Materials Engineering, Colorado School of Mines

Structure, processing, property, and performance relationships are the cornerstone of materials science and engineering. Yet, we are often left to infer what critical microstructural characteristic(s) and/or defect(s) in metallic alloys result in performance degradation and the failure of parts. Today, state-of-the-art characterization techniques available in the laboratory and at national user facilities are enabling unprecedented, real-time studies of metallic alloys during processing, deformation, and simulated service and manufacturing.  The use of x-rays, protons, and electrons to study multiscale solidification dynamics in metallic alloys relevant to processes like casting and additive manufacturing are highlighted. Experimental results such as these, along with complementary ex-situ characterization, are used to inform, develop, and validate computational models. The new knowledge gained by in-situ/ex-situ characterization will aid in the prediction and control of metallic alloy microstructures and properties by design with advanced manufacturing.

Amy J. Clarke is an Associate Professor in the George S. Ansell Department of Metallurgical and Materials Engineering, Co-Director for the Center for Advanced Non-Ferrous Structural Alloys, and a faculty member with the Advanced Steel Processing and Products Research Center at the Colorado School of Mines (Mines).  She also holds a joint appointment with Pacific Northwest National Laboratory and is a Guest Scientist at Los Alamos National Laboratory (LANL).  Her research focuses on non-ferrous and ferrous physical metallurgy and making, measuring, and modeling metallic alloys during processing to realize advanced manufacturing. Amy earned her B.S. degree from Michigan Technological University and her M.S. and Ph.D. from Mines in Metallurgical and Materials Engineering.  Prior to joining Mines, she was a Scientist and Seaborg Institute Postdoctoral Fellow at LANL and Senior Engineer – Development/Research at Caterpillar Inc.  Amy has received a U.S. DOE Office of Science Early Career Research Program Award, an Office of Naval Research Young Investigator Program Award, and a Presidential Early Career Award for Scientists and Engineers.  Amy has served on The Minerals, Metals & Materials Society Board of Directors and the Association for Iron and Steel Technology Board of Directors, is an Editor for Metallurgical and Materials Transactions A, and was named a 2018 Fellow of ASM International and a 2020 TMS Brimacombe Medalist.