| Scope |
OBJECTIVE: This symposium aims to provide a premier international forum for scientists, engineers, and researchers to present and discuss their latest theoretical, computational, and experimental findings on the processing, microstructure, mechanical behavior, and application potential of multiprincipal element materials (MPEMs). The symposium will foster collaboration and knowledge exchange to accelerate the development and deployment of these advanced materials.
BACKGROUND AND RATIONALE: MPEMs, which comprise multiple principal elements in near equiatomic or non equiatomic ratios, can form various crystal structures including face centered cubic, body centered cubic, or hexagonal close packed solid solution phases, as well as multiphase systems. These materials have garnered significant attention due to their potential to exhibit desirable properties such as exceptional strength ductility combinations, high fracture toughness, excellent corrosion and oxidation resistance, superior wear and fatigue performance, and notable irradiation resistance. These attributes, therefore, position MPEMs as promising candidates for demanding applications in diverse sectors including the aerospace, automotive, energy (e.g., nuclear, hydrogen storage), and biomedical industries. This symposium will explore fundamental science and engineering aspects underpinning these exceptional properties and their translation into practical applications.
The symposium invites contributions on, but not limited to, the following topics concerning MPEMs:
(1) Alloy Design and Processing:
o Novel alloy design strategies (e.g., CALPHAD guided, machine learning-assisted).
o Advanced synthesis and processing routes (e.g., additive manufacturing, severe plastic deformation, powder metallurgy, advanced casting, and coating technologies).
o Phase stability, phase transformations, and their influence on properties.
(2) Microstructure Characterization and Evolution:
o Advanced characterization techniques (e.g., in situ transmission electron microscopy, scanning electron microscopy, synchrotron Xray/neutron diffraction, atom probe tomography, high-resolution electron backscattering diffraction) for multi scale structural analysis.
o Microstructural evolution under various thermomechanical treatments and service conditions.
o Correlation between processing, microstructure, and resultant properties.
(3) Mechanical Behavior:
o Fundamental deformation mechanisms at multiple scales (e.g., dislocation dynamics, twinning, phase transformation induced plasticity).
o Tensile, compressive, and shear properties across a wide range of temperatures (cryogenic to elevated).
o Fatigue, fracture, creep, impact, and wear behavior.
o Influence of defects, interfaces, and local chemical ordering on mechanical response.
o Serrated deformation and other dynamic strain aging phenomena.
(4) Modeling and Simulation:
o Computational materials science approaches (e.g., density functional theory, molecular dynamics, Monte Carlo, phase field modeling, crystal plasticity finite element method).
o Integrated computational materials engineering frameworks for MPEMs development.
o Application of machine learning and data driven methods for property prediction and alloy discovery.
(5) Functional Properties and Applications:
o Corrosion, oxidation, and hydrogen embrittlement resistance.
o Irradiation effects and materials for nuclear applications.
o Development of MPEMs for specific aerospace, automotive, and biomedical applications.
o Joining, welding, and repair of MPEMs.
o Tribological performance and surface engineering.
(6) Emerging Areas:
o High-entropy ceramics and compositionally complex ceramics.
o Bio-compatible and biomedical MPEMs.
o MPEAs for catalysis and energy storage conversion.
o Methods of microstructural modification, such as hierarchical structuring, which alter mechanical behavior and physical properties. |