While all of our projects involve materials, the focus of some is engineering better materials. We have two active thrusts in this area: (1) engineering new NiTiHf alloys, both for additive manufacturing and for improved tribology materials and (2) discovery and design of improved soft magnetic alloys. These programs span basic research from the origins of hysteresis in materials to the applied optimization of compositions and processing of new materials for applications such as International Space Station ball bearings, additively manufactured biomedical implants, and high-efficiency, high-frequency transformers and power electronics for electric automobiles and airplanes.

Researchers in Materials

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Latest developments in Materials research:

Beam Team Research Assistant Professor Behnam Amin-Ahamdi’s article entitled “Coherency strains of H-phase precipitates and their influence on functional properties of nickel-titanium-hafnium shape memory alloys” has been accepted by Scripta Materialia and will be published in the April 2018 issue. Co-authors include Beam Team alum Joe Pauza and Prof. Stebner.

Dr. Behnam Amin-Ahmadi’s paper “Effect of a pre-aging treatment on the mechanical behaviors of Ni50.3Ti49.7-xHfx (x ≤9 at. %) shape memory alloys” will be published in the April 2018 issue of Scripta Materialia. Co-authors include PhD candidate Tom Gallmeyer, alum Joe Pauza, and Prof. Aaron Stebner.