About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Functionally Graded Materials Designed by In Situ Site-specific Texture Control during Laser Powder Bed Fusion |
Author(s) |
Karl Sofinowski, Mallory Wittwer, Matteo Seita |
On-Site Speaker (Planned) |
Karl Sofinowski |
Abstract Scope |
Additive manufacturing processes have a vast potential for designing functionally graded metal components. Through spatiotemporal control of processing conditions, it is now possible to produce materials with spatially variant microstructures and site-specific materials properties. Using a recently published technique, we manipulate the local solidification conditions during laser powder bed fusion of stainless steel 316L to create functionally graded materials (FGMs) with both discrete and gradient crystallographic textures. We demonstrate the potential of site-specific texture control with two applications. In the first, we leverage the anisotropic chemical properties of 316L to create a new, high-throughput method for encoding data in metals. In the second, “metamaterial” structures are designed with controlled plastic deformation. The technique demonstrated in this work can be further extended to create FGMs tailored to all material properties affected by crystallographic texture. |