About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Computational Materials for Qualification and Certification
|
Presentation Title |
Uncertainty Quantification in Process-Structure-Property Dynamics of IN718 |
Author(s) |
Hasan Al Jame, S. Mohadeseh Taheri-Mousavi |
On-Site Speaker (Planned) |
Hasan Al Jame |
Abstract Scope |
Inconel 718 is a widely utilized superalloy in extreme-temperature applications for its high-temperature properties. While it is one of the few commercially printable alloys, the sensitivity and uncertainty within its microstructural features and properties are undetermined. Here, we have combined machine learning with CALPHAD-based ICME techniques to address these challenges. The superior properties of the alloy come from the stability of its strengthening phases in the microstructure, whereas some phases are detrimental to high-temperature applications. In this study, we focus on four main phases of this alloy in as-built and aged conditions and measure the sensitivity of elemental and compositional variation on phase fractions. We further extend our sensitivity analysis to the material’s properties such as strength and printability. Our goal is to discuss how these uncertainties in microstructural features will propagate to the uncertainty in these properties to delineate potential design pathways to achieve robust properties. |