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Meeting MS&T22: Materials Science & Technology
Symposium Computation Assisted Materials Development for Improved Corrosion Resistance
Presentation Title A PRISMS-PF Based Application for Simulating Microgalvanic/Galvanic Corrosion in Alloys
Author(s) Vishwas Goel, Yanjun Lyu, David Montiel, Katsuyo Thornton
On-Site Speaker (Planned) Vishwas Goel
Abstract Scope In this presentation, we will discuss the features and capabilities of a corrosion application developed within the PRISMS-PF framework for simulating microgalvanic and galvanic corrosion in alloys. PRISMS-PF is an open-source phase-field modeling framework that can solve coupled partial differential equations and employs a matrix-free variant of the finite element method with adaptive mesh refinement and explicit time-stepping. In the application, we consider physical phenomena such as migration of ions in the electrolyte, electrochemical reaction at the metal-electrolyte interface, and displacement of the metal-electrolyte interface due to corrosion. To simulate the interfacial motion, the Cahn-Hilliard equation is modified with an interfacial source term proportional to the velocity. The application is well suited for both 2D and 3D systems and exhibits superlinear parallel performance for a sufficiently large system. To demonstrate its utility, we will present the effect of microstructure and material properties on the corrosion rate in Mg-alloys.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A PRISMS-PF Based Application for Simulating Microgalvanic/Galvanic Corrosion in Alloys
Computational Approaches to Designing and Predicting the High-Temperature Oxidation Behavior of Alloys
Multi-objective Optimization of CALPHAD and Empirical Models to Discover New High-temperature Metallic Glasses
Oxidation Lifetime Modeling of FeCr and NiCr Foils in Hydrogen-fired Microturbines
Phase Identification and Characterization in a Mo-Si-B-Ti Alloy
Predicting Hydrogen Diffusivity in Amorphous Titania Using Markov Chain Kinetic Monte Carlo Simulations
The Effect of Solute Capture on Chlorine Chemisorption
Water-Metal Interactions: Insights from Atomistic Simulations

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