The objective of this project is to contribute to the development of materials technology for use in advanced ultra supercritical (AUSC) steam turbines. AUSC power plants will operate with steam temperatures up to 1,400°F and pressures of 5,000 psi resulting in a highly efficient power generation process. Estimated plant efficiency increases are as much as 30% compared to sub critical power plants. Research and development on advanced materials is needed to lead to full-scale demonstration and eventual commercialization for AUSC power plants. A three-year preliminary evaluation under Phase 1 identified a wide spectrum of potential alloys and coatings. Preliminary evaluations of a subset of these promising materials included research on mechanical properties, oxidation resistance, weldability, and suitability of alloys and coatings. This follow-on effort will support in-depth, longer term testing that provides material characterization data that is necessary for the design of a steam turbine that is operable in AUSC conditions.