| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Mesoscale Phenomena in Functional Polycrystals and Their Nanostructures
|
| Presentation Title |
Structure Property Relationships in Complex, Multi-phase, Polycrystalline Materials |
| Author(s) |
Mir Al-Masud, Naji Mashrafi, Adnan Taqi, Matthew J Beck |
| On-Site Speaker (Planned) |
Mir Al-Masud |
| Abstract Scope |
Nanostructured and additively manufactured materials often exhibit complex and inhomogeneous microstructures. While available characterization techniques can reveal average or effective bulk properties and provide insight into local structure, linking changes in bulk properties to local structure is challenging. For many traditional materials, computational
modeling has often allowed efficient prediction of processing-structure-property relationships, but these methods continue to be limited for materials with complex, random, or inhomogeneous structures. Recently, the Kentucky Random Structures Toolkit (KRASTk) has been developed to address this challenge by allowing for the stochastic generation of sets of
many model representative volume elements (mRVEs) from a physically-motivated geometric seed description. Both expected bulk effective properties and length-scale-dependent distributions of local properties are then computed for sets of structures via FEM. Focusing on a
novel metallic alloy for 3D printed high-temperature, high-strength applications, we demonstrate this approach and uncover structure-property relationships governing mesoscale and bulk mechanical behavior. |