|With the development of modern electron microscopy, advanced characterization instruments, and computational technologies, scientists and engineers are able to characterize defects in sub-angstrom scale, simulate defect evolution across multi-length and time-scale, and draw direct correlations between defect evolution and material properties under conventional and harsh environments. In situ testing (under electron microscopes, synchrotron, neutron) further enables the direct observation of defect behavior under both quasi-equilibrium and far-from equilibrium conditions. The state-of-the-art knowledge in fundamental thermodynamic and kinetic properties of defects has greatly motivated and advanced novel designs of materials with superb mechanical performance and damage tolerance.
This symposium will focus on understanding defect properties and behavior under mechanical deformation and extreme conditions through advanced experimental and simulation techniques. A variety of materials are considered, including conventional metals and alloys, functional ceramics, and emerging novel materials such as low-dimensional materials, high-entropy alloys, and materials fabricated by advanced manufacturing. Understanding the defect-property relationship in these materials will significantly facilitate their applications in various fields. Specifically, this symposium aims to cover the following themes:
1. Multi-scale experiments and modeling of defect evolution
2. In situ analysis of defects under mechanical deformation and extreme conditions (SEM, TEM, synchrotron, etc.)
3. Defect properties and behavior in emerging materials (HEAs, NFAs, 3D printed materials, etc.)
4. Advanced characterization of physical and chemical properties of defects (APT, 4D STEM, etc.)
5. Defect engineering for optimal material performance
Keywords: Defects, Mechanical Behavior, Extreme conditions, Simulation and Modeling