Feedstock Powder: The Building Blocks for Additive Manufacturing, Specifically Cold Spray Processing
Danielle Cote, Ph.D.
Assistant Professor, Materials Science & Engineering
Director, Center for Materials Processing Data
Worcester Polytechnic Institute
Wednesday, September 18
10:00 – 10:50 a.m.
Higgins Labs 218
Abstract
Military aircraft that require high maneuverability, durability, ballistic protection, repairability, and energy efficiency need structural alloys with low density, high toughness, and high strength. The cold spray process, a dynamic powder consolidation technique, produces materials that meet these needs. A through-process model was developed to simulate the material and process parameters for the cold spray process. The four stages in the through-process model are powder production, powder pre-processing, cold spray processing, and post-processing. Each stage is a stand-alone model with the stages integrated to create a model of the entire cold spray process. This seminar emphasizes the powder production and pre-processing stages for aluminum alloy powders. Model predictions are compared with experimental microstructure, microchemistry, and mechanical properties.
About the Speaker
Dr. Cote is an Assistant Professor in Materials Science & Engineering at WPI. She received her B.S. from the University of New Hampshire in Chemical Engineering and M.S. and Ph.D. in Materials Science & Engineering from WPI. She also worked as a research engineer at Saint- Gobain High Performance Materials in the Polymer Characterization research group. Her current research involves computational thermodynamic and kinetic modeling for rapidly solidified materials, particularly applied to powder alloy development for additive manufacturing applications.