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Designing New Metal Alloys Using Engineered Nanostructures

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Now, Trelewicz-an assistant professor in the College of Engineering and Applied Sciences’ Department of Materials Science and Chemical Engineering with a joint appointment in the Institute for Advanced Computational Science at Stony Brook University and principal investigator of the Engineered Metallic Nanostructures Laboratory-takes advantage of the much higher magnifications of electron microscopes to see tiny nanostructures in fine detail and learn what happens when they are exposed to heat, radiation, and mechanical forces.

In particular, Trelewicz is interested in nanostructured metal alloys that incorporate nanometer-sized features into classical materials to enhance their performance.

“Though this damage does not compare to what the material would experience in a reactor, it provides a starting point to evaluate whether or not the engineered material could indeed address some of the limitations of tungsten for fusion applications,” said Trelewicz.

“One of the great aspects of having both experimental and computational components to our research is that when we learn new things from our experiments, we can go back and tailor the simulations to more accurately reflect the actual materials,” said Trelewicz.

“All of our projects fall under the umbrella of developing new metal alloys with enhanced and/or multifunctional properties,” said Trelewicz.

Trelewicz’s team is designing interfaces and engineering them into the metallic glasses-initially iron-based and later zirconium-based ones-to enhance the toughness of the materials, and exploring additive manufacturing processes to enable sheet-metal production.

Going forward, Trelewicz would like to expand his collaborations at the CFN and help establish his research in metallic nanostructures as a core area supported by CFN and, ultimately, DOE, to achieve unprecedented properties in classical materials.

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Article originally posted at www.bnl.gov

Post Author: Tom Siegfried

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