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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing: Alloy Design to Develop New Feedstock Materials
Sponsorship TMS: Additive Manufacturing Committee
TMS: Alloy Phases Committee
Organizer(s) Joseph McKeown, Lawrence Livermore National Laboratory
Aurelien Perron, Lawrence Livermore National Laboratory
Manyalibo Matthews, Lawrence Livermore National Laboratory
Christian Leinenbach, Empa, Swiss Federal Laboratories for Materials Science and Technology
Peter Hosemann, University of California, Berkeley
Scope Growth in materials diversity for metals-based additive manufacturing (AM) is becoming increasingly important due to the challenges associated with achieving controllable microstructures and properties in technically relevant alloys, such as conventional steels (i.e., 316L stainless steel), aluminum alloys such those based on Al-Cu-Mg-Sc-Si, Ni-Cr–based superalloys (Inconel 718/625), and titanium alloys (largely Ti-6Al-4V). There is an increasing need to develop new materials feedstocks that are better suited to take advantage of AM processes and their parameters. New alloys for structural and biomedical applications, high-strength and high-radiation-resistant alloys, and hierarchically graded materials, among others, have begun to generate interest.

This symposium will highlight recent advances in the design and optimization of new alloy feedstock materials for AM. Presentations are sought that illustrate paths toward broadening the design space to include new, innovative materials, including but not limited to:

• New alloys for AM, such as high-entropy alloys
• Experiments that explore a broader alloy design space, including powder development and microstructural assessments
• Combinatorial experimental approaches for materials design and optimization
• Computational methods for design of alloys with improved properties
• Experiments and simulations that aid in understanding the role of physical properties on alloy design
• Advanced characterization techniques that provide insight for materials design

Abstracts Due 05/31/2020
Proceedings Plan Undecided

3D Characterization of Cracks Formed in “Weldable” AA6061 and Implications for Alloy Design
Accidental Alloy Development: In-situ Evolution of AM Powder and Opportunities for New Material Synthesis Pathways
An Interdisciplinary Approach for Alloy Design for Additive Manufacturing
Application of Taguchi, Response Surface, and Artificial Neural Networks for Rapid Optimization of Direct Metal Laser Sintering Process
CALPHAD Informed Design of Rare-earth Containing Alloys for Additive Manufacturing
Characterization of Spatter with Organized Features in Laser Powder Bed Fusion
Development of Oxidation Resistant Multi-Principle Element Alloys Applied with Additive Manufacturing
High-Throughput Accelerated Alloy Development
Laser Additive Manufacturing of Nanocomposite Powders
Mechanical Alloying of Feedstock Powder for Additive Manufacturing by Selective Laser Melting: Aluminum Alloy Matrix Composites
Micro-crack Mitigation by Alloy Modification in the Additively Manufactured Ni-base Superalloy CM247LC
Microstructure and Property Variability in DED Inconel 718 as a Function of Build Rate
Opportunities to Improve the Mechanical Properties of Titanium Alloys Produced by Laser Powder Bed Fusion
Optimization of Nitrogen-Atomized 17-4 Stainless Steel Feedstock for AM Processing
Processing of Y2O3-modified Nickel Superalloy by Selective Laser Melting.
Residual Stress Mitigation of Additive Manufactured Stainless Steel 316L Components through the Directed Energy Deposition Inclusion of TiC Nanoparticles
Sensitivity Analysis and Composition Design for Metal Additive Manufacturing Using CALPHAD-based ICME Framework

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