|About this Abstract
||Materials Science & Technology 2012
||Phase Stability, Diffusion, Kinetics and their Applications (PSDK-VII)
||Computational Modeling of Precipitation and Oxidation Kinetics
||Youhai Wen, Kaisheng Wu, Jeffrey Hawk
|On-Site Speaker (Planned)
The National Energy Technology Laboratory (NETL) is actively developing advanced materials for advanced fossil power systems, such as materials for use in coal-fired boilers and steam turbines for the US-DOE Advanced Ultra-Supercritical-Steam (A-USC) program as well as new materials for advanced oxy-combustion gas turbines. One of the challenges in developing materials for these applications is the accurate life prediction with the underlying evolving microstructure and environmental effect under high temperatures. A multi-faceted modeling approach is being developed at NETL/DOE to study precipitation and oxidation kinetics under different length scales. Progress is discussed in this presentation based on results from phase field modeling, thermodynamic calculations, and mean field modeling. The computational tools can be used to understand microstructure stability in industrial alloy systems and oxidation behavior under high temperature environments, which paves the way for integrated computational-experimental efforts to accelerate the materials design.