Corrosion Resistant Naval Alloys: Innovative Multi-Scale Computational Modeling and Simulation Tools

QuesTek proposes to apply its Materials by Design® technology to the development of a multiscale modeling architecture of ultra-high strength (UHS) steel corrosion behavior. In Phase I, models developed within this architecture will consider the underlying microstructure and nanostructure of the base steel in determining passive layer composition and thickness. Point defect models (PDMs) will be developed to predict oxide passive film stability (including breakdown conditions). Explicit inputs to the modeling architecture will include the detailed composition and heat treatment conditions of various UHS steels, as well inputs related to the corrosive environment conditions (pH, chloride ion concentration, etc.). Models will be calibrated with QuesTek’s extensive database of UHS steel microstructural, nanostructural, and corrosion behavior information.