Process Technology and Modeling Committee

Technical Programming

2019 TMS Annual Meeting & Exhibition: Materials Processing Fundamentals: Organized by Guillaume Lambotte; Jonghyun Lee; Antoine Allanore; Samuel Wagstaff

The key interest areas to be covered in this symposium are all aspects of the fundamentals, synthesis, analysis, design, monitoring, and control of metals, materials, and metallurgical processes and phenomena. Topics will include: - The experimental, analytical, physical and computer modeling of physical chemistry and thermodynamics; - Modeling on the transport phenomena in materials processing and metallurgical processes involving iron, steel, non-ferrous metals, and composites; - Second phase particles in metals and processes, such as non-metallic inclusions and bubbles in metals (steel, aluminum, silicon, magnesium etc...) or gas bubbles in slag or electrolyte (foaming, gas evolution or injection...); the fundamentals (experimental studies or theoretical studies) on the nucleation, growth, motion and removal of these second phase particles from the molten metal or reactors; - Physical chemistry, thermodynamics and kinetics for the production and refining of rare earth metals; - Control of industrial processes in the field of extraction and processing of metals and materials: novel sensors for hostile-environment materials processes, such as online inclusion detection, temperature, and velocity in molten materials, surface condition of hot moving products, etc.; innovative online sampling and analysis techniques; models for real-time process control and quality monitoring systems.

2019 TMS Annual Meeting & Exhibition: Ultrasonic Processing of Liquid and Solidifying Alloys: Organized by Dmitry Eskin; Laurentiu Nastac; Iakovos Tzanakis; Koulis Pericleous

This symposium will provide a platform for the worldwide academic and industrial researchers in the field of solidification, casting and molten metal processing to present the very recent advances concerning the fundamental and applied research in ultrasonic processing of liquid and solidifying alloys, and its applications in industry. For example, the improvement of quality, structure and properties of aluminium, magnesium alloys, and many other advanced metallic alloys and composites through application of ultrasonic cavitation and mixing gained a lot of interest in the last 15 years, and is now spreading into industrial applications. The symposium topic will cover, but is not limited to, modelling, advanced in-situ studies, experimental studies and physical simulations, technology development and industrial applications.

2018 TMS Annual Meeting & Exhibition: Additive Manufacturing: Building the Pathway towards Process and Material Qualification: Organized by John Carpenter; Allison Beese; David Bourell; Christian Leinenbach; James Sears; Christopher Tuck

This symposium will provide a forum for all veins of additive manufacturing to present their latest results in developing methodology for science-based or practice-based material and process qualification. Sessions will be included that seek to develop processing-microstructure-property- performance relationships in metals and non-metals alike. Experimental, modeling, and combined experimental/modeling approaches are welcome. Background and Rationale: Additive manufacturing (AM) offers distinct advantages over conventional manufacturing processes including the capability to both build and repair complex part shapes; to integrate and consolidate parts and thus overcome joining concerns; and to locally tailor material compositions as well as properties. A variety of fields such as aerospace, military, automotive, and biomedical are employing this manufacturing technique as a way to decrease costs, increase manufacturing agility, and explore novel geometry/functionalities. To increase acceptance of AM as a viable processing method, pathways for qualifying both the material and the process need to be developed and, perhaps, standardized. This symposium will serve as a venue for the international AM community - including government, academia, and industry - to define the fundamental interrelationships between feedstock, processing, microstructure, shape, mechanical behavior/materials properties, and function/performance. This will be accomplished through experimental observations, theoretical advances, and computational modeling of physical processes to provide insight and understanding of the nature of the final product and the evolution of microstructure resulting in final part properties and performance. Materials of interest include but are not limited to: - Homogeneous materials: polymers, ceramics, and metals - Heterogeneous materials: foams, polymeric matrix, metallic matrix, ceramic matrix, functionally graded Areas of interest include, but are not limited to: - Fabrication: * Machines: emerging technologies and advancing current capabilities * Processing: feedstock material (including powder, wire, and filament), process and process monitoring (both freeform and direct write), build parameters, repair parameters, post processing (e.g., heat treatment) * Specimen design: net-shaped parts; parts machined to shape based on scaling; as built laboratory test specimens/coupons; specimens/coupons machined from larger builds - Developing constitutive relationships: coupling microstructure measurements and experimental stress analysis to characterize mechanical behavior/materials properties targeting performance - Closing the feedback loop: microstructure measurements feedback to fabrication; performance (mechanical behavior, materials properties, and/or functional) feedback to fabrication

2018 TMS Annual Meeting & Exhibition: CFD Modeling and Simulation in Materials Processing: Organized by Laurentiu Nastac; Koulis Pericleous; Adrian Sabau; Lifeng Zhang; Brian Thomas

This symposium deals with computational fluid dynamics (CFD) modeling and simulation of engineering processes. Papers are requested from researchers and engineers involved in the modeling of multiscale and multiphase phenomena in material processing systems. The symposium focuses on the CFD modeling and simulation of metal processes including continuous casting of alloys, electromagnetic stirring (EMS) and ultrasonic cavitation and stirring (UST) processing, controlled solidification processes, casting, forging, welding, heat treating, and VAR/ESR/PAM/EBM remelting processes; manufacturing of advanced metal-matrix-composites and nanocomposites via controlled melting and solidification processing, powder metallurgy, coatings including PVD, CVD, and plasma-assisted EBM-PVD technologies; and other surface and/or additive engineering processes including induction, ultrasonic, laser, and EB thermal processing. The symposium also deals with applications of CFD to engineering processes and demonstrates how CFD can help scientists and engineers to better understand the fundamentals of engineering processes.

2018 TMS Annual Meeting & Exhibition: Materials Processing Fundamentals: Organized by Guillaume Lambotte; Antoine Allanore; Jonghyun Lee; Samuel Wagstaff

The key interest areas to be covered in this symposium are all aspects of the fundamentals, synthesis, analysis, design, monitoring, and control of metals, materials, and metallurgical processes and phenomena. Topics will include: - the experimental, analytical, physical and computer modeling of physical chemistry and thermodynamics; - Modeling on the transport phenomena in materials processing and metallurgical processes involving iron, steel, non-ferrous metals, and composites; - second phase particles in metals and processes, such as non-metallic inclusions and bubbles in metals (steel, aluminum, silicon, magnesium etc...) or gas bubbles in slag or electrolyte (foaming, gas evolution or injection...); the fundamentals (experimental studies or theoretical studies) on the nucleation, growth, motion and removal of these second phase particles from the molten metal or reactors; - physical chemistry, thermodynamics and kinetics for the production and refining of rare earth metals; - Control of industrial processes in the field of extraction and processing of metals and materials: novel sensors for hostile-environment materials processes, such as online inclusion detection, temperature, and velocity in molten materials, surface condition of hot moving products, etc.; innovative online sampling and analysis techniques; models for real-time process control and quality monitoring systems.