| About this Abstract |
| 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. |