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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing of Metals: Complex Microstructures and Architecture Design
Presentation Title Synchrotron X-ray Studies on Additive Manufacturing and Materials
Author(s) Tao Sun
On-Site Speaker (Planned) Tao Sun
Abstract Scope Metal additive manufacturing (AM) is a transformative technology, which not only unleashes the design freedom by allowing the build of geometrically complex parts, but also opens up the opportunities for synthesizing novel materials with non-equilibrium structures and fabricating functionally graded architectures. AM holds the promise for completely revolutionizing the way we make thing, but building defect-free products with precisely controlled microstructures remains challenging. At the Advanced Photon Source, we recently applied high-speed x-ray imaging and diffraction techniques to in situ characterize the metal AM processes and materials. The superior penetration power of high-energy x-rays makes it possible to look into dense metallic materials and watch their dynamic structural evolution during energy-matter interaction with unprecedented spatial and temporal resolutions. In the presentation, I will introduce the new understanding gained from our synchrotron x-ray experiments, as well as their broad impact on the development of AM materials, processes, and numerical models.


Additive Manufacturing of Pure Magnesium
Alloy and Process Modification for Microstructure Control in Additively Manufactured Alloys
Application of Photodiode Sensor for Contour Extraction of Part Features in the Laser Powder Bed Fusion Process
Control of Nanoscale Lamellae in Bulk Al-Cu Eutectic Samples Through Laser Powder Bed Fusion
Cracking in Additively Manufactured Refractory Metals
Engineering the Plasticity of SLM Steel via Crystallographic Texture Control
Evaluation of Microstructure in Multi Bead Ti-6Al-4V
Fabrication of High Temperature High Strength Austenitic Steels by Laser Powder-bed Fusion
Laser Powder Bed Fusion of Single-crystalline-like Stainless Steel 316L; From Samples to Parts
Microstructural Features and Mechanical Properties of a Newly Designed Steel Fabricated by Laser Powder Bed Fusion
Microstructure of Alloy 247LC Manufactured by Laser Powder Bed Fusion
Mitigating Stray Grain Nucleation during the Laser Powder Bed Fusion of Single Crystal CMSX-4
Modeling of Grain Growth in Metal Printing
Secondary Orientation Preference of Ni-based Superalloy Single Crystals Produced via Electron Beam Melting
Synchrotron X-ray Studies on Additive Manufacturing and Materials
The Structure of Cellular Features in Additively Manufactured 316L

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