First CorroZoom Season 3 Webinar- Robert G. Kelly
First CorroZoom Season 3 Webinar - Robert G. Kelly
1 December 2022 at 0800 US Eastern
Localized Corrosion Under Atmospheric Conditions: Insights from Modeling and Experiment
Robert G. Kelly
University of Virginia, Charlottesville, USA
Abstract
Atmospheric exposures are the most common form of environmental that structural materials encounter. They share with localized corrosion similar experimental challenges: electrolytes of very restricted volume the composition of which controls the propagation or repassivation of localized corrosion the metal(s) in which they are in contact. Shared computational challenges include the selection of the governing equations, establishing accurate electrochemical boundary conditions, and the means of calculating evolving electrolyte composition. This talk will review some of the work in my group over the years that have tried to provide insights into engineering-relevant conditions of geometry, material, and environment through the use of experimental and computational tools. Examples will be presented include stainless steels used for spent nuclear fuel storage, dissimilar metal fastener-hole combinations as occur in aerospace construction, and coatings on aerospace aluminum alloys that use both galvanic and chemical mechanisms to provide protection.
Biography
Robert G. Kelly has been conducting research on the corrosion of metals for the past 40 years. After earning his Ph.D. at Johns Hopkins University (1989), he spent two years at the Corrosion and Protection Centre at the University of Manchester (UK) as a Fulbright Scholar and as an NSF/NATO Post-doctoral Fellow. He joined the faculty of the University of Virginia in 1990. His past work has included work on the corrosion of metals and alloys in marine environments, non-aqueous and mixed solvents as well as stress-corrosion cracking and other forms of localized corrosion. His present work includes studies of the electrochemical and chemical conditions inside localized corrosion sites in various alloy systems, atmospheric corrosion, and multi-scale modeling of corrosion processes. He was selected for the 1997 A. B. Campbell Award, the 1999 H. H. Uhlig Award (NACE/AMPP), the 2016 H.H. Uhlig Award (ECS), and most recently the 2021 W.R. Whitney Award (NACE/AMPP). He is a Fellow of NACE International and the Electrochemical Society. He has won several teaching awards while at UVa, including an All University Teaching Award in 2004. He has rendered technical assistance to the NRC, DOE, the USAF Aging Aircraft Program, the NASA Safety and Engineering Center, and the 9/11 Pentagon Memorial design team.