|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Influence of Morphology on Ultrasonic Scattering: A Theoretical Study
||Showmic Islam, Musa Norouzian, Joseph Turner
|On-Site Speaker (Planned)
Nondestructive quantification of the microstructural organization with ultrasonic scattering techniques can help predict the mechanical performance of a component. Three-dimensional digital microstructures are used to investigate the scattering of mechanical waves within a numerical framework. These synthetic microstructures can either be voxel or tessellation based. In this study, the variation of ultrasonic scattering is predicted for microstructures of different morphologies for a nickel (Ni) polycrystalline material. The difference in ultrasonic properties due to various morphologies such as the Voronoi, and Laguerre tessellations and the synthetic microstructure created by DREAM.3D is calculated using 30 realizations. The results show that the differences in the two-point statistics and ultrasonic responses for different morphologies becomes more significant for a wider distribution of grain sizes. Finally, the importance of such differences with respect to grain-size estimation from ultrasonic measurements will be discussed. (Research supported by AFRL under prime contract FA8650-15-D-5231).