High-Entropy Alloys: Serration Behavior

High-entropy alloys often respond with sudden slips to slow deformation forces. The statistics of these slips provide useful information about the underlying deformation mechanism. Recent modeling efforts are reviewed that explain and predict the serration behavior, and its dependence on temperature, strain-rate, composition, and preparation. Comparisons of the predictions to experiments show good agreement. The resulting understanding of the deformation mechanism of HEAs can aid the design of better materials.