Recent Advances In Corrosion Of Metals And Passivity
Date: Wednesday, March 23rd, 2016
Time: 11:00 AM
Location: Building 4, Room 125
Prof. Philippe Marcus
Institut de Recherche de Chimie Paris/ Physical Chemistry of Surfaces
CNRS – Chimie ParisTech
Recent advances in the understanding of corrosion mechanisms have been achieved by investigating the chemical and electrochemical reactivity of well-defined metal surfaces at the nanoscale.
This lecture will focus on recent advances in the understanding of corrosion of metals and alloys at the nanoscale, using a surface science approach. The data that will be reviewed are based on the application of advanced surface analytical techniques, such as STM, STS, XPS, ToF-SIMS, combined with electrochemical measurements, and complemented by DFT modeling.
The following points will be addressed:
- Tools for high resolution characterization of corrosion processes
- The metal/water interface : adsorption in the early stage of interaction (studied by in situ Scanning Tunneling Microscopy (STM) on Cu, Ag, Ni single crystal surfaces)
- Nanostructure of passive oxide films on metals (Cu, Ni, Cr) and alloys (stainless steels):
- Crystallinity of passive films: evidence of the crystalline nature of passive films on several
- metals (Cu, Ni, Cr) and alloys (ferritic and austenitic stainless steels)
- Oxide/metal epitaxy: the epitaxial relationship between inner oxide films and metallic substrates
- Effects of time of polarization on oxide crystallinity
- Effect of surface defects on localized corrosion
- Atomistic modeling of corrosion using density functional theory (DFT)
Prof. Philippe Marcus is Director of Research at CNRS (Centre National de la Recherche Scientifique) and Head of the Research Group of Physical Chemistry of Surfaces of Institut de Recherche de Chimie Paris, Ecole Nationale Supérieure de Chimie de Paris, Chimie ParisTech, France. Dr Marcus received his Ph. D. (1979) in Physical Sciences from University Pierre and Marie Curie, Paris, France. His field of research is surface chemistry, surface electrochemistry, and corrosion science, with emphasis on the understanding of the structure and properties of metal and alloy surfaces. Dr. Marcus has published over 400 papers in scientific journals, books and conference proceedings in the areas of corrosion science, surface chemistry and electrochemistry, surface analysis and materials science, plus three books "Corrosion Mechanisms in Theory and Practice", "Analytical Methods in Corrosion Science and Engineering" and "Molecular Modeling of Corrosion Processes". Dr Marcus has organised or co-organised several international conferences. He was the Chair of EUROCORR in 2009, and of EMNT (International Symposium on Electrochemical Micro and Nanosystems Technologies) in 2010. He is the Chairman of EUROCORR 2016.
Dr. Marcus is currently the Chairman of the EFC Working Party on Surface Science and Mechanisms of Corrosion and Protection, Chairman of the International Steering Committee for the European Conferences on Applications of Surface and Interface Analysis, Chairman of the Scientific and Technical Committee of CEFRACOR (Centre Français de l'Anticorrosion), and Vice-President of CEFRACOR. He is on the Board of Administrators of the European Federation of Corrosion and of the World Corrosion Organisation.
Courtesy: SAICSC- ACS
There will be a get-together with refreshments at 10:45-11:00 a.m.