| Scope |
The symposium is aimed at high-temperature alloys, which are critical in aerospace propulsion, power generation, and industrial processing. As the operating environments become increasingly aggressive, the environmental degradation of high-temperature alloys and protective coatings remains a critical challenge for engineers and scientists. Understanding the mechanisms that govern for instance, high-temperature oxidation, hot corrosion, hydrogen embrittlement, and interactions with in-service environments is essential for predicting component lifetimes and designing next‑generation materials systems.
This symposium will provide a dedicated forum for researchers and engineers to discuss recent advances in experimental evaluation, multi-scale modeling, exploring innovative mitigation strategies, novel coating architectures, data driven materials design, and lifetime prediction methodologies. A major objective of this session is to bridge the gap between experimental observations and computational predictions. Particular emphasis will be placed on linking environmental exposure conditions to degradation mechanisms, identifying microstructural features that control resistance, and utilizing advanced correlative characterization and novel testing frameworks, including in-situ monitoring and high-throughput assessment. Contributions spanning fundamental studies, applied research, and industrial case analyses are encouraged.
The symposium aims to bring together experts working on nickel-, cobalt-, and iron-based superalloys; refractory alloys; oxide dispersion strengthened systems; complex concentrated alloys; and advanced coating technologies. By integrating perspectives from academia, national laboratories, and industry, the symposium will highlight emerging challenges and opportunities associated with high temperature environmental degradation in both conventional and next-generation energy and propulsion systems.
• Mechanisms of Environmental Attack: High-temperature oxidation, hot corrosion, deposit-induced degradation, and hydrogen-rich environment interactions.
• Advanced Characterization: Multi-modal and correlative microscopy (e.g., 3D tomography, APT, TEM) of environmentally degraded alloys and coatings.
• Modelling & Simulation: Integrated Computational Materials Engineering (ICME), thermodynamic-kinetic modelling, and multi-scale simulations of degradation processes.
• Novel Testing Methodologies: In-situ monitoring, complex environment simulation (e.g., steam, supercritical CO2), and high-throughput testing frameworks.
• Microstructure–Property Relationships: The impact of degradation on mechanical performance and phase stability.
• Coatings & Surface Engineering: Novel coating architectures, diffusion barriers, and microstructural evolution during service.
• Alloy Design: Strategies for enhancing environmental resistance in superalloys, refractory metals, and complex concentrated alloys.
• Lifetime Prediction: Data-driven design, machine learning approaches, and physics-based models for remaining useful life assessment. |