| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Developing Predictive Capabilities
|
| Presentation Title |
Rapid Characterization and Comparison of the Cyclic Response of Laser Powder Bed Fusion Additive Manufactured Inconel 718 Samples Using Spherical Microindentation |
| Author(s) |
Camilla E. Johnson, Aaron Stebner, Surya R. Kalidindi |
| On-Site Speaker (Planned) |
Camilla E. Johnson |
| Abstract Scope |
Historically, fatigue is a costly property to assess because of the volume of material required for test coupons and also the time to run each test. Therefore, a critical need exists for the development of novel experimental approaches that can rapidly evaluate the relative changes in cyclic response as a function of alloy chemistry and thermo-mechanical processing history. This becomes especially critical in the materials development efforts as it relates to additive manufacturing, which require systematic exploration of a large materials space. In this work, we present a novel approach using spherical microindentation to deduce stress-strain loops and compare the cyclic response of different heat treatments of laser powder bed fusion additive manufactured Inconel 718. The results show promise for obtaining reliable, high-throughput, quantitative assessments of the cyclic response. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Other |