Shaping and Forming Committee

Technical Programming

2018 TMS Annual Meeting & Exhibition: Additive Manufacturing of Metals: Establishing Location Specific, Processing-Microstructure-Property-Relationships III: Organized by Eric Lass; Mark Stoudt; Judy Schneider; Lee Semiatin; Behrang Poorganji; Clay Houser

Advances in additive manufacturing (AM) technology have created the ability to design and construct components with geometries and properties that cannot be achieved through traditional solidification and deformation processes. This ability has promoted multiple new design strategies whose success relies on close integration of engineering and materials science. An additional attractive aspect of additive processing is the ability to custom design specific properties within the component by layering, thereby promoting different microstructures or compositions (e.g., functionally-graded materials). However, the repetitive rapid solidification that occurs during AM also creates microstructures that deviate significantly from those observed in wrought materials with the same nominal composition. The result is a segregated microstructure with significant variations in local composition/phases, and, in some cases, life-limiting defects that are typically absent in wrought alloys. Most of the AM research currently focuses on refining the build process and on minimizing the residual stresses generated during the build. Consequently, there is far less emphasis on post-build heat treatments that homogenize the as-built microstructures and promote similar properties to wrought alloys. The main objective of this symposium is to develop a better understanding of the input-material requirements, process capabilities, and the resultant effects on finished product microstructure, texture, and properties. Research that elucidates the process-structure-property-performance relationships resulting from rapid solidification and transient phase transformations is essential. Information regarding the influence of inherent defects on the performance of AM-produced components is also greatly needed. Abstracts are requested that relate transient phenomena, recrystallization, transformation, and rapid solidification to additive manufacturing and its influence on phases, microstructure, and properties. Technical sessions emphasizing the following specific topics are planned: • Microstructure evolution in aluminum alloys, stainless steels and aerospace alloys (e.g., Ti, Ni alloys) • Texture measurements and control in AM parts • Defects and their effect on post-build (service) properties • Residual stress evolution and control • Novel applications, complex geometries fabricated via AM • Modeling of AM processes (including liquid and solid-state phase transformation behavior) • Emerging AM processes

2018 TMS Annual Meeting & Exhibition: Advanced Characterization Techniques for Quantifying and Modeling Deformation: Organized by Rodney McCabe; Thomas Bieler; Marko Knezevic; Irene Beyerlein; Wolfgang Pantleon; C. Tasan

This symposium will provide a venue for presentations regarding the use of advanced characterization techniques in all classes of materials to quantify and model deformation mechanisms. Background and Rationale: Advances in characterization technology have greatly improved our ability to quantify deformation mechanisms such as dislocations, twinning, and stress induced phase transformations, and the microstructural changes accompanying deformation such as texture evolution, grain morphology changes, and localized strain. A variety of relatively new techniques are being applied to both structural and functional materials. These techniques, in combination with modeling, are improving our understanding of deformation and failure during material processing/forming and under normal or extreme conditions in service. In situ techniques are also providing enhanced understanding of individual mechanism interactions and direct validation of plasticity models. This gathering provides a place to talk about new advances in current techniques or in technique development as they apply to deformation. Areas of interest include, but are not limited to: (1) Dislocations, deformation twins, and stress induced phase transformations (2) All advanced X-Ray-based techniques (3) All advanced electron-based techniques including HR-(S)TEM, EBSD, HR-EBSD, PED, and in situ TEM (4) All structural and functional materials systems (5) Advances in material modeling through the use of advanced characterization techniques (6) Industrial applications (7) Technique development

2018 TMS Annual Meeting & Exhibition: Ultrafine-grained Materials X: Organized by Suveen Mathaudhu; Irene Beyerlein; Avinash Dongare; Chong Soo Lee; Terry Lowe; Srikanth Patala; Lee Semiatin; Jason Trelewicz; Janelle Wharry; Caizhi Zhou

This is the tenth international symposium that focuses on all aspects of the science and technology of ultrafine grained (UFG) and nanocrystalline materials. This symposium covers a broad scope, ranging from fundamental science to applications of bulk ultrafine-grained (grain size <1000 nm) and nanostructured (feature size <100 nm) materials. It provides a forum on the topics of fabrication and understanding of UFG and nanocrystalline materials including conventional and emerging technologies and advancements, fundamental issues in severe plastic deformation (SPD) processing and SPD-processed materials, UFG and nanocrystalline microstructure evolution, mechanical and physical properties, deformation mechanisms, superplasticity, joining and bonding, computational and analytical modeling, structural and functional applications, etc. Other emerging topics to be covered include gradient and layered nanostructures, vapor-phase processing, powder processing, rapid-solidification methods, bio-inspired nanomaterials, and radiation tolerant nanomaterials. Also, in honor of the 10th iteration of this symposium, we will hold a “Pioneers of Ultrafine Grained Materials” session that will highlight the contributions of the superheroes of this field. Awards: UFG X will be hosting a Young Scientist Session for students or post-docs within three years of receiving their Ph.D. There will be up to two Gold Medals and three Silver Medals for best oral presentation. Awards will also be given for best poster (One Gold Medal and two Silver Medals). A committee that includes the symposium organizers and invited speakers will decide the awards. Each medalist will receive a certificate, and may receive a cash prize, depending on resources available.