| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Accurate Prediction
|
| Presentation Title |
Predicting Creep for AM Alloys Using the Larson-Miller Method: Limitation and Next Step |
| Author(s) |
Yu-Tsen Yi, Nicholas Lamprinakos, Xiang Chen, Anthony Rollett |
| On-Site Speaker (Planned) |
Yu-Tsen Yi |
| Abstract Scope |
Creep is a critical challenge for high-temperature applications, such as heat exchangers (HX), where long-term mechanical stability is essential. Additive manufacturing (AM) has emerged as a transformative fabrication technique for HX components, offering design flexibility and material efficiency. However, the complex microstructures inherent to AM introduce significant variability in creep properties, complicating performance predictions. This study employs the Larson-Miller parameter (LMP) to predict the creep life of various AM alloys intended for high-temperature applications. The analysis highlights the primary limitation of LMP in addressing short steady-state creep stages and explores potential solutions to enhance prediction accuracy. Additionally, this work compares the creep behavior of AM alloys with their wrought counterparts, underscoring the need for more robust models tailored to the unique characteristics of AM microstructures. The findings aim to guide the development of more reliable methods for predicting creep life in advanced AM applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, ICME |