| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture IV: Toward Confident Use in Critical Applications
|
| Presentation Title |
Predicting the Integrity of Additively Manufactured Nickel Alloys: Quantifying the Evolution of Texture and Elastic Constants Using Resonant Ultrasound Spectroscopy |
| Author(s) |
Jeffrey O. Rossin, Marie-Agathe Charpagne, Brent Goodlet, Chris Torbet, Michael Groeber, Bill Musinski, Jonathan Miller, Stephen Smith, Samantha Daly, Tresa Pollock |
| On-Site Speaker (Planned) |
Jeffrey O. Rossin |
| Abstract Scope |
Additive manufacturing (AM) has enabled the creation of components with complex geometries, unique processing advantages, and simplified designs. Despite the advantages of AM, difficulties in qualifying AM components for critical applications has limited its widespread usage. Variables such as beam settings, part geometry, and material specific parameters cause variation in microstructure between additive parts and builds. Resonant Ultrasound Spectroscopy (RUS) is being investigated as a non-destructive evaluation (NDE) technique that can characterize and qualify additively manufactured nickel alloy components. RUS has been used to study microstructure and texture for a nickel-base alloy printed by laser powder bed. Using a single AM sample, RUS has enabled quantification of the elastic constants as they evolve during stress relief and recrystallization. The effect of grain nucleation and intergranular misorientation will be discussed. These findings have been validated using finite element simulations. Model and experimental results present further defect detection capabilities via RUS. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |