Venue: The Lodge at Vail

Location: Vail, Colorado, United States

Event Date/Time: May 16, 2010 End Date/Time: May 20, 2010
Abstract Submission Date: Feb 15, 2010
Paper Submission Date: Feb 15, 2010
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The purpose of this conference is to provide an effective forum for scientists and engineers to present and discuss current understanding and best practices related to surface degradation in high-temperature aggressive environments. This will be an applications-oriented conference that will include a range of pedagogical aspects. There will be a set of invited overview presentations on the basics aspects of environmental degradation of materials at high temperatures followed by a series of invited and contributed presentations focused on materials selection for and recent advances in materials for a number of important high-temperature applications that, as such, also define the specific topic areas for the conference. Specific forms of degradation that are of concern include mixed-gas attack (e.g., oxidation-sulfidation, oxidation-carburization, and oxidation-chloridation), deposit-induced attack, and metal dusting. These forms of attack may be in combination with some form of mechanical loading (e.g., fatigue and creep) and/or thermal cycling. The conference will conclude with some forward-looking themes as a topical area.

The need for materials resistant to increasingly harsh conditions has been widely recognized in recent years. For instance, the US Department of Energy released a 2008 report entitled, Basic Research Needs for Materials under Extreme Environments ( ). As stated in this report, materials are central to every energy technology, and future energy technologies will place increasing demands on materials performance with respect to extremes in stress, strain, temperature, pressure, and chemical reactivity. The report emphasizes that the required levels of materials performance under such conditions will require breakthroughs in our understanding of the atomic and molecular processes that occur at surfaces of materials exposed to extreme environments and that such advances will critically depend on powerful emerging techniques involving in-situ characterization, theory, and modeling. It therefore would be highly opportune to have a dedicated and focused conference on the Surface Stability of Materials in High-Temperature Aggressive Environments to assess scientific and technical progress and make the critical connections between basic and applied research that can foster true advances in materials technology.

A tentative conference outline and a partial list of invited speakers (not all have been confirmed yet) are shown below. While not exhaustive, the application areas are chosen for their technological relevance as well as their value in illustrating the challenges of, and approaches to, materials selection and performance for high-temperature aggressive environments

Basic Aspects

Forms of High-Temperature Surface Degradation, G.H. Meier, University of Pittsburgh
Introduction to Deposit Induced Surface Attack, J. Nicholls, Cranfield University, England
Alloy Design for Resistance to High-Temperature Surface Degradation, B. Gleeson, University of Pittsburgh

Advanced Gas Turbines, M. Maloney, Pratt & Whitney
Advanced Steam Systems, Ian Wright, ORNL
Fossil Energy Systems - Fireside, C. Powell, NETL
Nuclear Power Systems - Gas Cooled, C. Cabet, CEA, France
Renewable Energy Systems, M. Schütze, DECHEMA, Germany
Incinerator Systems, J-E. Svensson, Chalmers Universitty, Sweden
Chemical Process Industries, D.J. Young, UNSW, Australia
Oxide Fuel Cells, P. Singh, U Conn
Transitioning Research to Application

Accelerated Degradation Issues in New and Developing Energy Systems: Linking Lab-Scale Testing to Results Found in the Field, B. Bordenet, Alstom, Switzerland
Testing Methods for Assessing High-Temperature Surface Degradation, D. Monceau, France
Measuring Surface Potentials in Mixed-Gas Environments, T. Maruyama, Japan
Approaches to Lifetime Prediction, R. John, Shell
Future Directions

Reactive Environments in Future High Temperature Systems, J. Quadakkers, Germany
Integrating Recent Scientific Advances with Materials Developments for Surface-Degradation Resistance, P. Tortorelli, ORNL