About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Verification, Calibration, and Validation Approaches for Mechanical Modeling of Metals
|
| Presentation Title |
Multimodal Techniques to Enhance 316L Lifetime Prediction in Low-Temperature Creep Conditions |
| Author(s) |
Samuel B. Inman, Brad Boyce |
| On-Site Speaker (Planned) |
Samuel B. Inman |
| Abstract Scope |
Creep degradation near a material's yield stress can significantly limit component lifetimes, even at temperatures well below conventional expectations (< 0.3 Tm). Inherent microstructural heterogeneity across identical components yields highly stochastic deformation responses, introducing substantial predictive uncertainty. Within these microstructures, localized plastic slip occurs across distinct grain orientations; as neighbors deform anisotropically, surface strain gradients naturally develop and manifest physically as surface roughening.
This work utilizes a high-throughput parallel testing methodology that captures surface roughening evolution alongside creep response. Beyond tracking active evolution through surface roughness alone, integrating these topographic signatures into multimodal, data-driven frameworks enables the calibration of stochastic constitutive coefficients. Ultimately, this non-destructive approach establishes a pathway for intermittent, in-service material surveillance over decades, reducing uncertainty in the tracking and prediction of room-temperature creep degradation. |
| Proceedings Inclusion? |
Planned: |