| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
Rapid Characterization of Cyclic Response of Small-volume Metal Samples Using Spherical Microindentation Stress-strain |
| Author(s) |
Camilla E. Johnson, Soumya Mohan, Reji John, Adam Pilchak, Surya Kalidindi |
| On-Site Speaker (Planned) |
Camilla E. Johnson |
| Abstract Scope |
The cyclic stress-strain response of a material provides insight into fatigue properties that may limit the performance of fracture-critical rotating components in gas turbine engines. 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, 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 for various titanium alloys. The results show promise for obtaining reliable, high-throughput, quantitative assessments of the cyclic response. |
| Proceedings Inclusion? |
Planned: |