|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||High Entropy Alloys IV
||Magnetic Treasure Maps for CoFeNi-based High-entropy-alloys from First-principles
||Fritz Körmann, Duancheng Ma, Blazej Grabowski, Marcel H.F. Sluiter
|On-Site Speaker (Planned)
We present finite-temperature magnetic properties of four- and five-component FCC high entropy alloys (HEA) based on CoFeNi. Curie temperatures are computed employing density functional theory and a magnetic mean-field model. Particular emphasis is put on CoCrFeNiPd alloys, which have been suggested as potential magneto-caloric materials recently. Our results are in excellent agreement with experimental data revealing high predictive power of the employed theoretical method. The computational framework is used to explore the dominant mechanisms that determine the Curie temperature. Finally we propose alternative alloying strategies for tuning the Curie temperature towards ambient temperature by a careful balancing of alloy constituents in fcc ferromagnetic HEAs.
||Planned: A print-only volume