When 10:30 AM - 11:30 AM Oct 02, 2020
Where Virtual
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Development of novel high throughput alloy design strategies for steels in extreme environments via additive manufacturing


Kevin Field
University of Michigan, Nuclear Engineering & Radiological Sciences

Abstract: Materials can play a pivotal role in advancing the state of nuclear energy both domestically and abroad by increasing safety, efficiency, and operational lifetime. Until recently, most advances in materials design for nuclear energy have been incremental – slight changes of composition here or tweaks in microstructure there. This talk will focus on research directions established at the University of Michigan to enable rapid breakthroughs in the development of advanced steels by exploiting the rapid solidification and thermal cycling behavior intrinsic to fusion-based additive manufacturing technologies. Specifically, recent results on the tailoring of the steel powder feedstock and/or cover gas during the additive process to form a high density of nano-precipitates will be presented. It will be shown that the design of the feedstock and cover gas can be aided through physical metallurgy fundamentals as well as through the use of computational thermodynamics. The presentation will conclude on how these high throughput alloy design strategies can be used to develop a new class of radiation resistant steels for extreme environment applications including as core internals for nuclear power reactors.

 

Biography: Dr. Kevin Field is an Associate Professor in the Department of Nuclear Engineering and Radiological Sciences at the University of Michigan where his research specializes in alloy development and radiation effects in ferrous and non-ferrous alloys. His active research interests include advanced electron microscopy and scattering-based characterization techniques, additive/advanced manufacturing for nuclear materials, and the application of machine/deep learning techniques for advanced innovation in characterization and development of material systems. Prof. Field moved to the University of Michigan in the Fall of 2019 after six years at Oak Ridge National Laboratory where he first started as an Alvin M. Weinberg Fellow and left at the level of Staff Scientist. Prof. Field has presented and published numerous manuscripts on radiation effects in various material systems relevant for nuclear power generation including irradiated concrete performance, deformation mechanisms in irradiated steels, and radiation tolerance of enhanced accident tolerant fuel forms. Dr. Field received his B.S. (2007) from Michigan Technological University in Materials Science & Engineering and his M.S. (2009) and Ph.D. (2012) from the University of Wisconsin – Madison in Materials Science with a focus on segregation phenomena in ion and neutron irradiated ferrous-based alloys. Dr. Field’s work has been recognized through several avenues including receiving the prestigious Alvin M. Weinberg Fellowship from ORNL in 2013 and being awarded the UT-Battelle Award for Early Career Researcher in Science and Technology in 2018 and Department of Energy Early Career Award in 2020.