| Abstract Scope |
At the heart of the integrated computational materials engineering paradigm is the acknowledgement that properties and processing are fundamentally linked through proper understanding of microstructure. For most of the history of materials science, direct microstructural quantification has been determined primarily through two-dimensional observations of our materials. The advent of advanced microscopy and increased computational power and tools have led to significant advances in our ability to both quantify the true 3D microstructures, as well as model their behavior. In this presentation we will discuss how the Navy is developing new methods for characterization and modeling in 3D, both to develop new alloys that leveraged nanoscale atom probe tomography and to model microscale dislocation dynamics to provide predictions of mechanical response. Additionally, we will discuss the development and improvement of automated micro-scale serial-sectioning to collect statistically large datasets in additively manufactured (AM) 316L, and how the data from these characterizations were essential for informing and validating cellular automaton finite element models for AM structures.
|