Amit Misra is Professor and Chair of the Department of Materials Science and Engineering (MSE) at the University of Michigan, Ann Arbor since 2014. Prior to that he worked at Los Alamos National Laboratory, New Mexico (LANL) from 1996 to 2014. At LANL, his most recent appointment was as the Director of a US Department of Energy, Office of Basic Energy Sciences (DOE/BES) funded Energy Frontier Research Center (EFRC) titled Center for Materials at Irradiation and Mechanical Extremes. Professor Misra has a PhD in Materials Science and Engineering from University of Michigan (1994) and BS in Metallurgical Engineering (1989) from IIT-BHU, India. He is a naturalized citizen of USA. His primary research expertise is in design of advanced structural metallic materials for tailored response in extreme environments for next-generation of automotive, aerospace, defense and nuclear energy technologies. He has mentored over 30 early career scientists and engineers (postdocs and graduate students).
Designing Metallic Nanocomposites for High Strength and Damage Tolerance
Amit Misra
Department of Materials Science & Engineering, University of Michigan
LOW 3051, Rensselaer Polytechnic Institute
Wed, October 10, 2018 at 11:00 AM
Nanolayered composites such as Cu-Nb are used as model systems to explore the
interaction of interphase boundaries with defects introduced via plastic
deformation or ion irradiation. The results of these experimental studies are
integrated with atomistic modeling and dislocation theory to provide insight
into the unprecedented combination of properties achieved in certain nanolayered
composites such as ultra-high flow strengths, high plastic flow stability, high
fatigue strength, high thermal stability, high sink strength for
radiation-induced point defects and trapping of helium in the form of stable
clusters at interfaces. The results on "bottom-up" synthesized model systems are
compared with "top down" accumulative roll bonding (ARB) processed bulk Cu-Nb
nanolayered composites. A quantification of the defect-interface interactions
as well as the processing-interface structure relationship allows the
development of materials design concepts with controlled interface structures in
nanocomposites to achieve tailored response in engineering applications.
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