About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques
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Presentation Title |
A-32: Influence of Powder Recyclability on the Defect Density of Components Fabricated with Nickel-based Alloys Characterized with Micro X-ray CT |
Author(s) |
Curtis Lee Frederick, Edson Costa Santos, Michael Kirka, Pradeep Bhattad, Paul Brackman |
On-Site Speaker (Planned) |
Curtis Lee Frederick |
Abstract Scope |
Development of a material and additive manufacturing process can span many years. Once the process is defined and a part reaches serial production, quality is not guaranteed because of many instabilities in the process chain. Micro X-ray CT makes it possible to perform 3D characterization of powder as it changes over time from the first to last print. Defects then observed in the printed parts can be linked to the powder characteristics. With crack prone nickel alloys produced using the selective electron beam melting process defect density is of great importance as each defect can disrupt the grain structure and final part properties. This presentation will show how X-ray CT can be used to assure quality after printing by characterizing powder at multiple stages of the additive manufacturing process. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |