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Additive Manufacturing of Metals: Building Unreliable Microstructures 20 Microns at a Time
Thu, Feb 04, 2016 @ 12:45 PM - 02:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Speaker: Professor Lyle Levine, National Institute of Standards and Technology
Talk Title: Additive Manufacturing of Metals: Building Unreliable Microstructures 20 Microns at a Time
Series: Graduate Seminar
Abstract: Additive manufacturing of metals could revolutionize the design and production of complex, high value metal parts. However, the extreme processing conditions of, essentially, welding millions of microscopic bits of metal together, create deleterious microstructures with high stresses, extreme compositional gradients, non-equilibrium phases, and a variety of potentially disastrous build flaws. How can the processing and post processing treatments be optimized to produce useable and consistent microstructures and mechanical properties? We are developing a comprehensive methodology to answer three questions: what is there?, why is it there?, and how can
we fix what is there? To optimize the build and post build processing steps, we are developing and using a combination of multicomponent computational thermodynamic and kinetic microstructural evolution simulations, finite element models, and worldleading stress and microstructure characterization methods using synchrotron X-rays, neutrons, and lab based measurements. I will describe our progress in our first target
systems, Ni-based super alloys and steels.
Location: James H. Zumberge Hall Of Science (ZHS) - 159
Audiences: Everyone Is Invited
Contact: Martin Olekszyk
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor.
