Powder Materials Committee

Technical Programming

2018 TMS Annual Meeting & Exhibition: Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals: Organized by Ma Qian; Zak Fang ; Bowen Li

In this proposed six-session symposium, papers addressing all aspects of powder metallurgy of light, reactive and other non-ferrous metals and their applications will be welcome. The following topics of the powder metallurgy of light, reactive and other non-ferrous metals are particularly welcome: (i) novel synthesis of powder materials; (ii) production and characterisation of spherical powders for additive manufacturing (AM) or 3D printing, (iii) new developments and understanding of powder consolidation (e.g. spark plasma sintering; microwave sintering; forging, extrusion, powder injection moulding, cold spray forming); (iv) additive manufacturing or 3D printing; (v) functionally graded materials and novel metal-ceramic or metal-polymer composites; (vi) novel applications of powder materials including loose powders, porous structures and fully consolidated products; (vii) advances in characterization of powder materials; and (viii) modelling and simulation of all aspects of the powder metallurgy of light, reactive and other non-ferrous metals.

2017 TMS Annual Meeting & Exhibition: Additive Manufacturing: Building the Pathway towards Process and Material Qualification: Organized by John Carpenter; David Bourell; Allison Beese; James Sears; Reginald Hamilton; Rajiv Mishra; Edward Herderick

Objective: 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: o Machines: emerging technologies and advancing current capabilities o 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) o 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

2017 TMS Annual Meeting & Exhibition: Fundamental Aspects and Modeling Powder Metal Synthesis and Processing: Organized by Paul Prichard; Eugene Olevsky; Iver Anderson

This symposium joins the communities interested in fundamental aspects of powder metallurgy, both modeling and experimental. It represents the TMS Powder Materials Committee initiative to bring together the individuals specializing in basic research on powder synthesis and consolidation fulfilling the goals of TMS annual conferences of creating an interdisciplinary and fruitful research environment. The related modeling application topics include conventional and field assisted powder consolidation processes (powder compaction, pressureless sintering, spark-plasma and microwave sintering, hot isostatic pressing, and novel consolidation techniques), nano-sintering, grain growth, interface effects, in-situ measuring techniques at various scale levels, modeling of die filling and powder spreading, modeling of sintering phenomena in additive manufacturing, simulation of powder synthesis. The modeling techniques (including physics based, phenomenological, and empirical) or fundamental experimentation are expected to cover multiple scale levels, starting from atomistic dimensions up to the scale of real world macroscopic components. Considering the high level of interest of research and industrial communities in these topics, we expect about 50-80 abstracts in this combined event, with an attendance of 50 people per section. Potential session topics are: - Modeling of powder compaction under ambient and elevated temperatures - Fundamental aspects of conventional, microwave, spark-plasma and flash sintering - Grain boundary and interface energy effects on sintering & grain growth - Modeling of die filling and powder spreading - Modeling of sintering phenomena in additive manufacturing - Modeling and fundamental experimentation on powder synthesis - Consolidation of multi-layered materials - Fundamental aspects of fabrication of powder-based electronic and bio-materials - In-Situ Measurements of powder synthesis and consolidation

2017 TMS Annual Meeting & Exhibition: Pioneers in Additive Manufacturing: Organized by James Foley; Paul Prichard; Iver Anderson; David Bourell

Additive manufacturing (AM) in the last few years has seen a significant increase in activity due to renewed industrial interest and government encouragement of several types of public/private partnerships, especially in the metals area. While AM is a relatively new materials processing technology, its roots go back at least a couple decades when it was a new processing research area, described as “3-D Printing” or “Rapid (Metal) Prototyping.” Many of people who are currently innovating new materials solutions and applications were infants or not born yet when key processing problems were being solved. While some of the pioneering work was conducted with stereo lithography of polymers, many of the process technologies for metal “freeform fabrication” were an extension of thermal spray deposition, atomization spray deposition, laser cladding, various welding (e.g., hard-facing build-up) processes, and binder-assisted powder metal sintering. The symposium intends to invite pioneers in the field of additive manufacturing along with current innovators in the field to present ground breaking work that solved materials problems and enabled highly advanced manufacturing production. Contributed papers highlighting past, current or future problems and solutions in AM also are encouraged.

2016 TMS Annual Meeting & Exhibition: Bulk Processing of Nanostructured Powders and Nanopowders by Consolidation: Organized by Deliang Zhang; Bowen Li; Stephen Mashl

In recent years, the synthesis of nanopowders and processing of bulk materials by consolidation have attracted broad attention, due to the great potential applications of near net shape components with nanostructures with improved mechanical and other functional properties . This symposium is to provide a forum for scientists, engineers, researchers and graduate students to present and discuss their updated research findings, technology developments, and commercialization efforts. It is also a platform for international research community in this field to discuss the future directions for research, development, and technology commercialization. The topics of sessions will include: preparation of nanopowders, preparation of nanostructured powders, bulk processing of nanopowders, bulk materials process by consolidation, measurement of nanoparticles and nanopowders, bulk processing evaluation.

2016 TMS Annual Meeting & Exhibition: Powder Metallurgy of Light Metals: Organized by Zhigang Fang; Qian Ma

Light metals, including aluminum, magnesium, and titanium are gaining increasingly more attention in recent years, fueled by the momentum of the lightweighting of automobiles. This momentum creates a opportunity for "powder metallurgy (PM) of light metals", which is logically an alternative to casting and wrought processing of light metals. This symposium aims to bring a focus to the state-of-the-art as well as future opportunities of the powder metallurgy of light metals. Presentations on the production of powders, consolidation and sintering of powders, other processing routes of powders (such as powder extrusion, rolling compaction and sintering of powders), mechanical properties of PM light metals, and applications of PM light metals, are all encouraged to participate.

2015 TMS Annual Meeting & Exhibition: Novel Synthesis and Consolidation of Powder Materials: Organized by Ma Qian; Iver E Anderson

Powder materials and their various consolidated or assembled forms are used in many industries today for a wide variety of purposes, from demanding structural applications such as nickel-base powder metallurgy superalloys in the hot sections of jet engines to distinctive functional operations such as catalysis, seeding, surface modification for extreme conditions, purification and microfiltration. In addition, nanopowder materials are expected to play a central role in enabling the transformation of various new energy sources into affordable forms of power. The powder materials community is expected to relentlessly develop novel powder synthesis and consolidation processes that will better serve our current and future needs. In this proposed six-session symposium, papers addressing all aspects of novel powder synthesis and consolidation will be presented, and the proceedings, based on invitation, will be considered as a focus issue of a peer-reviewed journal following the symposium. The various aspects to be covered will include, but will not be limited to: (i) novel synthesis of powder materials including nanopowder production and coated or passivated powder by both chemical and physical means; (ii) novel applications of powder materials including loose powders, functionally graded powder materials, porous structures and fully consolidated products; (iii) advances in characterization of powder materials; (iv) new developments and understanding in powder consolidation (e.g. spark plasma sintering; microwave sintering; forging, extrusion, powder injection moulding, cold spray forming); (v) additive manufacturing or 3D Printing of both metallic and non-metallic materials; (vi) improved or novel process control of powder synthesis and consolidation; and (vii) advanced powder-based material designs such as functionally graded powder materials and novel metal-ceramic or metal-polymer composites.