|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Material Design and Process Development for Lightweight High Entropy Alloys and Composites
||Xuejun Huang, Jiashi Miao, Alan A. Luo
|On-Site Speaker (Planned)
||Alan A. Luo
High entropy alloys (HEAs) are a new class of materials consisting of multiple principal elements, and can offer exceptional physical and mechanical properties. CALculation of PHAse Diagrams (CALPHAD) modeling was used to explore and design lightweight AlCrTiV-based HEAs. The high hardness and high elastic modulus of these lightweight HEAs as well as their compatibility with metals/alloys make them excellent reinforcements in metal matrix composites (MMCs). Al-based MMCs reinforced with AlCrTiV-based HEA particles were prepared using mechanical alloying and powder metallurgy manufacturing techniques. Heat treatments were conducted based on CALPHAD modeling results. Advanced characterization techniques were used to identify phases and validate CALPHAD calculations for AlCrTiV-based HEAs and Al/AlCrTiV MMCs.