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Meeting Materials Science & Technology 2020
Symposium Computation Assisted Materials Development for Improved Corrosion Resistance
Presentation Title Development of a Multiscale Corrosion Model for Valve Steels in a Gasoline Engine Environment
Author(s) Michael R. Tonks, Xueyang Wu, Simon Phillpot, Robert S. Ullberg, Iman Abdallah, Adrien Couet, John Perepezko, Mark Carroll, Wen Jiang
On-Site Speaker (Planned) Michael R. Tonks
Abstract Scope As engines are pushed to higher temperatures, valve steels undergo microstructure evolution that sensitizes it to corrosion and can result in premature failure. The goal of this project is to develop the Stainless Steel Alloy Corrosion (SStAC) tool for modeling corrosion of valve steels in an engine environment at temperatures up to 800 C in 1D, 2D or 3D. The tool is being implemented using the open source MOOSE framework, coupling a corrosion model (including the impact of the microstructure and alloy composition) with mechanics and thermal transport. Simulations at the atomic and mesoscales are being used to obtain parameters for the model that include the impact of microstructure and alloy composition. The tool will be validated against new data obtained using laboratory and engine tests. The completed SStAC tool will be used to optimize existing valve steels to improve their corrosion resistance without significantly increasing cost.
Proceedings Inclusion? Planned: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Applying Machine Learning to Determine the Corrosion Resistance of Alloys
Assessing High Temperature Durability for Long-term Applications
Development of a Multiscale Corrosion Model for Valve Steels in a Gasoline Engine Environment
High Temperature Oxidation Lifetime Modeling of FeCr and NiCr Foils in Water Vapor
Introductory Comments: Computation Assisted Materials Development for Improved Corrosion Resistance
Machine Learning to Predict Cyclic Oxidation of NiCr-based alloys
Metal-Oxide Bond-energy Models for Bond Energies of Alloy Oxides in Corrosion
Simulation of Dissolution of \Gamma\Prime Precipitates in Ni-base Superalloys during Oxidation
Tailoring the Microstructure of Eutectoid Steels during Annealing for Improved Corrosion Resistance: Insights from Phase-field Simulations

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