Seminar with Professor André McDonald
Event details
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Description
Microstructure and Damage Resistance of Thermal-sprayed Strengthened AlCoCrFeMo High Entropy Alloy Coatings for the Hydrogen Economy
Professor André McDonald PhD, BS Law, PEng, CEng, PE, IntPE (Canada), FASM, FIMMM, FIMechE, FCSME
Editor-in-Chief, Journal of Thermal Spray Technology
Director, ELITE Program for Black Youth
Executive Director, Alberta Advanced Manufacturing International (AbAMI) Hub
Department of Mechanical Engineering
University of Alberta
Seminar Abstract
High-entropy alloys (HEAs) are emerging as a promising materials platform for extreme-service environments in aerospace and hydrogen technologies. This seminar will explore how rare-earth scandium (Sc) doping and zirconium (Zr)–induced phase strengthening can significantly enhance the hardness, abrasion resistance, and damage tolerance of AlCoCrFeMoW HEA coatings fabricated using cost-effective flame spraying. Emphasis will be placed on the links between processing, microstructure, and performance, including the formation of heterogeneous splat morphologies, BCC/FCC phases, and spinel oxides. The role of Zr-rich phases in improving microstructural stability and resistance to hydrogen-induced degradation will also be discussed. The seminar highlights how compositional and phase engineering of HEA coatings can enable durable, scalable protective solutions for advanced aerospace and hydrogen infrastructure.