|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Surface Engineering for Improved Corrosion Resistance
||Predict Corrosion Phenomena and Surface Properties of Al-based Alloys
||Lan Li, Thiago da Silva, Mike Hurley
|On-Site Speaker (Planned)
Corrosion is an irreversible interfacial reaction resulting in detrimental effects on materials properties and structure. Through the combined first-principles simulation and thermodynamic calculations we investigated the structure, bonding characteristics and electronic properties of Al2Cu and Al2CuMg alloy secondary phases with 1, 0.5 and 0.25 monolayer coverage of Cl- ions. Our results provide detailed insight into the reaction mechanisms of Cl- ions with secondary phase structures. Partial charge density, local density of states and work functions for both phases are shown as evidences to surface reactivity and localized surface corrosion of these phases in Al-based alloys of the 2XXX series, advancing the fundamental understanding of corrosion prevention and mitigation.
||Planned: Supplemental Proceedings volume