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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing of Metals: Complex Microstructures and Architecture Design
Presentation Title Engineering the Plasticity of SLM Steel via Crystallographic Texture Control
Author(s) Sudarshan Raman, Karl Sofinowski, Matteo Seita
On-Site Speaker (Planned) Matteo Seita
Abstract Scope Owing to its unique capability of forming materials point by point, at high spatial resolution, additive manufacturing enables the production of metal parts with spatially-varying microstructures. By controlling the distribution of different microstructures in the build, it is possible to produce materials with enhanced structural properties. In this work, we manipulate the local directional solidification of material during selective laser melting (SLM) to print near-single crystal "blocks" with specific textures. The blocks can be arranged to create builds with site-specific texture and properties. We apply this strategy to control where plastic deformation initiates in SLM-produced bars of 316L steel. The results demonstrate that this strategy can be used to produce damage-tolerant structures. The strategy may also be extended to exploit other material properties that are affected by texture, such as corrosion resistance, fatigue strength, and magnetic susceptibility.


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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