| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Microstructure, Defects, and Properties
|
| Presentation Title |
Effects of Soot on Additively Manufactured Inconel 718 |
| Author(s) |
Allyssa Bateman, Kyle Holloway, Noah Montrose, Patrick Warren, Ana Stevanovich, Elizabeth Sooby, Brian J Jaques |
| On-Site Speaker (Planned) |
Allyssa Bateman |
| Abstract Scope |
Additive manufacturing (AM) could produce nuclear reactor structural components with improved performance and decreased qualification time. However, micromechanical variability in AM parts causes suboptimal micromechanical properties and chemical inhomogeneity. Additionally, spatter by-product (soot) can disrupt microstructure, increase porosity, and decrease part performance. This work developed methods to collect thousands of data points cataloguing location-specific microstructure, chemistry, and hardness data across nine Inconel 718 sample pairs printed via laser powder bed fusion. In addition to varying volumetric energy density, one cylinder from each pair was printed in close proximity to half-moon print, intended to generate additional soot, while the second cylinder was printed normally. Cylinders were sectioned in ten sections and laser engraved to ensure precise location tracking. Characterization techniques such as optical microscopy, scanning electron microscopy, light element analysis, and microhardness provide insight on the effects of soot on the microstructure, chemistry, and mechanical properties of Inconel 718. |