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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Alloy Development and Powder Manufacture for Additive Manufacturing
Presentation Title Synchrotron Radiation, XPS Depth Profiling and TEM Characterization for Understanding the Powder Microstructures of Some Key Printable Ti materials, and their Implications for Additive Manufacturing
Author(s) Ming Yan, Yinghao Zhou, Ma Qian
On-Site Speaker (Planned) Ming Yan
Abstract Scope Ti and Ti alloys are important light-weight metallic materials that are indispensable for many critical industrial applications. Additive manufacturing can facilitate rapid delivery of high-quality, customized Ti products and has therefore drawn significant attention in recent years. In this study, we used synchrotron radiation, XPS depth profiling and FIB+TEM to detail the surface and bulk microstructures of some key Ti materials in the powder form, including commercially pure Ti, Ti-6Al-4V, low-modulus biomedical Ti-Nb-Zr-Ta, and TiAl intermetallics. A comprehensive presentation will be made of the powder surface microstructure, including the oxide types and film thickness, and bulk microstructure which is powder-diameter or solidification-cooling-rate dependent. Implications of the various microstructures revealed will be discussed in the following three aspects: (a) the interactions between powder surface structure and laser energy absorption, (b) the impact on densification during AM, and (c) hints on the actual cooling rate during AM processing of these Ti materials.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing of a Quasicrystalline Phase Former Al-based Alloy Obtained Using Recycled Material
Alloy Design Principles for Additive Manufacturing – Lessons from Learned from Welding Metallurgy
Alloy Design Strategies for the Adaptation of Non-weldable Compositions for Additive Manufacturing
Aluminium Alloy Design for Selective Laser Melting
Aluminium Alloy Development for Additive Manufacturing
Ball Milling of Machine Chips as an Alternative Feedstock for Additive Manufacturing
Bridging the Gap Between Rapid Solidification and the Additive Manufacture of Novel Aluminum Alloys
Computational Design of High-performance Aluminum Alloys for Additive Manufacturing
Current Understanding and Status of Ni-base Superalloys for Additive Manufacturing: Towards Alloy Development for AM
Designing Fe-Ni-Al and Fe-Ni-Ti Maraging Steels for In-situ Precipitation Hardening during Laser Metal Deposition
Developing Powder Rheology Relationships for Characterization of Metal Powder Feedstocks Used in Additive Manufacturing
Development and Application of Techniques for Rapid Alloy Screening via Novel Bicombinatorial Approaches
Effect of Atomizing Media on Mechanical Properties of 17-4 PH Stainless Steel Additively Manufactured via Selective Laser Melting
Fabrication of Hastelloy X by Electron Beam Melting and Selective Laser Melting
High Entropy Alloys for Additive Manufacturing
Hybrid AM Processing Reduces Stresses and Produces Equiaxed Microstructures
Increasing Powder Yields and Quality for Additive Manufacturing by Fundamental Processing Research on Gas Atomization
Laser Engineered Net Shaping (LENS) of High Entropy Alloys
Microstructural and Orientation Changes by Modifications on Composition and Processing Parameters In Additive Manufactured Materials
Microstructural Optimization and Design of Metallic Materials for AM
Microstructure and Mechanical Properties of BN Reinforced Inconel 718 Composites Processed by Laser Powder Bed Fusion (LPBF)
Microstructure Development in Isolated Melt Pools of Electron Beam Melted Inconel 718
Performance of PTA AM Components for Mining and Energy Applications
Preventing the Coarsening of Al3Sc Precipitates by the Formation of a Zr-rich Shell during Laser Metal Deposition
Progress toward the Use of Elemental Powders for Additive Manufacturing of Aluminum Alloys
Rapid Solidification of Cu-Sn(-Ti) Based Alloys: Towards Alloy Design for Selective Laser Melting
Relationship between Alloy Composition and Solidification Conditions
RF Plasma Powder Metallurgy: An Overview of Applications for Material Development in Additive Manufacturing
Synchrotron Radiation, XPS Depth Profiling and TEM Characterization for Understanding the Powder Microstructures of Some Key Printable Ti materials, and their Implications for Additive Manufacturing
The Metalysis Process - a Flexible Distributed Manufacture Route for the Production of Novel AM Powders
Thermal Stability of Laser Sintered Nanostructured Powder

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