Progress in high-entropy materials

The high entropy concept focuses on compositions far away from the edge or corner of a multi-component system and hence represents a new paradigm shift in materials design. Consequently, high entropy materials, including solid solution alloys, intermetallics, ceramics, glasses, functional materials, polymers, and their composites, have attracted increasing interest from academia and industries on the fundamental understanding and applications. While great progress has been made in the theory and experiments in the formation, processing, and properties of high entropy materials, many challenges remain, such as lack of efficient and reliable computational tools, complex composition-processing-microstructure-properties relationship, vastly unexplored compositional space, and sensitivities to stress, temperature, pressure, and other environmental/operating conditions.

Proposed sessions and topics of interest:

• Artificial intelligence/machine learning: Model & algorithm development, machine learning interatomic potentials, inverse materials design.
• High throughput, multiscale modeling & simulations: Density functional theory, molecular dynamics, Monte Carlo, finite element method, phase field, mean field, CALPHAD, continuum.
• Thermodynamic, kinetic, physical, magnetic, magnetocaloric, thermoelectric, superconducting, catalytic, and other functional properties.
• Mechanical properties: Tension, compression, creep, fatigue, fracture toughness, brittle to ductile transition, wear, high strain rates.
• Crystal defects: Vacancies, interstitials, dislocations, twins, stacking faults, grain boundaries, surfaces, interfaces, voids, cracks, and their interactions.
• Environmental properties: Aqueous, pitting, stress, & salt corrosion, oxidation, hydrogen embrittlement, high-temperature hydrogen attack, irradiation, plasma erosion.
• High throughput synthesis methods in bulk and film forms.
• Advanced manufacturing and joining: Additive manufacturing, electron beam melting, spark plasma sintering, friction stir welding, novel extrusion.
• High-throughput characterization: Microstructures, and various properties.

Organizers:

• Michael C. Gao, National Energy Technology Laboratory, USA; Michael.Gao@netl.doe.gov
• Peter K. Liaw, University of Tennessee, USA; pliaw@utk.edu
• Yiquan Wu, Alfred University, USA
• Jian Luo, University of California, San Diego, USA
• Xingbo Liu, West Virginia University, USA
• Yong Zhang, University of Science and Technology Beijing, China
• Wei Chen, Buffalo University, USA
• Bai Cui, University of Nebraska at Lincoln, USA
• Yu Zou, University of Toronto, Canada
• Hailong Wang, Zhengzhou University, China