Event Date/Time: Sep 12, 2010 End Date/Time: Sep 16, 2010
Abstract Submission Date: Mar 01, 2010
Paper Submission Date: Mar 01, 2010
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Advances in Ni-base superalloys have served as enabling technologies that are critical to the development of ultra-efficient gas turbines for use in power generation, aerospace and marine propulsion. This class of structural material is used exclusively within the “hot section” of the gas turbines and permits operation of the engine at substantially higher temperatures, thereby enhancing overall performance and efficiency.

Today, virtually all modern gas turbine engines for aerospace applications utilize advanced single crystal Ni-base superalloy airfoils and powder processed Ni-base superalloy disk rotors. With increasing concerns regarding fuel costs, flight safety, carbon and noise emissions, novel materials and manufacturing technologies that may be used to increase the durability and augment the properties of turbine blades, nozzles and disk rotors are highly desirable. In the case of single crystal Ni-base superalloy airfoils, high temperature creep resistance, phase stability, bare alloy oxidation and compatibility with environmental and thermal barrier coatings is required. Alternatively, for turbine disk rotor alloys, resistance to burst at overspeed conditions, cyclic fatigue and hot corrosion are desirable.

Currently, substantial activity is being focused on the development of novel alloy compositions as well as advanced manufacturing technologies that may potentially increase the durability and operating temperatures of turbine engines. Research and development programs are currently being carried out by industry as well as in academic and national institutes in U.S. Europe and Asia.

A very successful Ni-base superalloy conference sponsored by ECI at Copper Mountain, Colorado during September 22-26, 2002, was attended by approximately 80 international researchers from industry and academia. Since that conference, exciting results are continuously being generated due to high interest and influx of industry funding to support engine programs for advanced jets such as the Boeing 787. Airbus A380 and Airbus A350XWB. Major programs investigating the development of new classes of Ni-base superalloys and related manufacturing technologies are currently active in Japan, China, France, Germany, UK and the USA. It is thus very timely to have a follow-up meeting from the original Copper Mountain meeting to bring together key people involved in these many programs to discuss progress and create a vision for future.

Ni-base superalloys possess a combination of truly remarkable properties and serve as enabling technologies for critical industries (aerospace, marine, power generation, chemical processing, etc.) and strategic defense related applications. Due to the industrial pertinence and scientific challenges associated with this class of engineering materials, a diverse group of scientists and engineers in the USA, Europe, Japan and China are all actively engaged in various multidisciplinary aspects of Ni-base superalloy technology. In order to develop a fundamental understanding and continue to exploit their unique combination of physical and mechanical properties, scientists and engineers need to quantify the synergistic relationships associated with processing, microstructure, and chemistry.

The conference will address the multi-disciplinary nature of Ni-base superalloys and will attempt to bring together those who have expertise in specific aspects of the materials involved, single crystal Ni-base superalloy development, polycrystalline Ni-base superalloy development, powder processing of Ni-base superalloys, fundamentals of sulfidation and oxidation, coating compatibility, and the basics of computational process modeling, casting, forging, machining and engineering design.

Tentative Topics
• Advances in Ni-base superalloy development
• Advances in melting and thermo-mechanical processing of Ni-base superalloys
• Physical metallurgy of Ni-base superalloys
• Micro- and Macro-deformation mechanisms in Ni-base superalloys
• Coatings and environment effects
• Modeling and simulation of Ni-base superalloys