| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Mechanisms and Mitigation of Aqueous Corrosion and High-temperature Oxidation
|
| Presentation Title |
Leveraging Additive Manufacturing to Co-design Mechanical Properties and Environmental Resistance |
| Author(s) |
Rishi Pillai, Rebecca Kurfess, Yi Feng Su, QQ Ren, Soumya Nag |
| On-Site Speaker (Planned) |
Rishi Pillai |
| Abstract Scope |
Sequential materials design approaches strive to achieve individual physical properties but fail to anticipate the consequences of complex interactions between underlying phenomena, such as environmental degradation and thermomechanical stability, that can substantially impact efficiency, performance and lifecycle requirements. A paradigm shift in these traditional approaches is critically essential to create application-specific hierarchical and multifunctional materials with superior long-term performance for next-generation energy technologies involving extreme environments.
In the current work, a new digital manufacturing framework that synergistically integrates established, high-fidelity, physics-based thermo-kinetic models with advanced fabrication techniques will be presented. A novel property graded Ni-based high temperature alloy with the ability to withstand differing environmental attacks exposed to molten halide salts and supercritical CO2 on opposing surfaces is being developed. A coupled thermokinetic model was employed to determine the compositional gradients that will facilitate corrosion resistant surfaces while simultaneously mitigating the corrosion-induced degradation of strengthening phases in the alloy. |