Multi-phase-field modeling of localized corrosion involving galvanic pitting and mechano-electrochemical coupling

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/90270

Title:	Multi-phase-field modeling of localized corrosion involving galvanic pitting and mechano-electrochemical coupling
Authors:	Lin, C Ruan, H
Issue Date:	Dec-2020
Source:	Corrosion science, Dec. 2020, v. 177, 108900, p. 1-17
Abstract:	A new multi-phase-field (multi-PF) model is proposed to study a complex localized corrosion process that involves mechano-electrochemical coupling, anodic dissolution, insoluble depositions (IDs) formation, and resulted Galvanic-pitting corrosion. Based on a quantitative investigation into the effects of Cl− concentration, pH value, mechanical loading, and electric field, we reveal the autocatalytic process of pitting assisted by increasingly aggressive chemical environment and concentrated stress and study how the external electric field can arrest assisted corrosion and prolong service lifetime. The proposed model can be a useful tool for the lifetime management of metallic components serving in ocean or other more aggressive environments.
Keywords:	Galvanic-pitting Localized corrosion Mechano-electrochemical coupling Multi-Phase-Field Model
Publisher:	Pergamon Press
Journal:	Corrosion science
ISSN:	0010-938X
DOI:	10.1016/j.corsci.2020.108900
Appears in Collections:	Journal/Magazine Article

Status	embargoed access
Embargo End Date	2022-12-31

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