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6.30】Prof.Dr.Sammy Tin
Topic:Alloy Design for...
 
2010-06-28 | 文章来源:高温合金研究部        【 】【打印】【关闭

Topic: Alloy Design for Manufacture: Linking the Properties, Processing and Chemistry of Single Crystal Ni-Base Superalloys

Speaker: Prof. Dr. Sammy Tin

Associate Professor of Materials Engineering, Dept of Mechanical, Materials & Aerospace Engineering, Illinois Institute of Technology, Chicago, USA.
  Chairman of High Temperature Structural Materials Committee at TMS 

Time: 8:30~10:00, (Wed.) 30, June, 2010

Venue: Room 403, R&D building, IMR CAS

Welcome to attend!

Abstract: The development of novel materials and processes are key technologies critical to the operation of gas turbines in aerospace, marine and power generation systems. Currently, the performance and overall efficiency of gas turbines is limited by structural materials used in critical components that degrade under severe combinations of temperature, stress and environmental attack. The ability to develop processes or novel new materials that will function effectively in these environments requires a fundamental understanding of the intrinsic mechanisms governing their characteristic behavior. As increasing levels of refractory alloying additions are being incorporated in Ni-base superalloys to enhance creep resistance, the ability to solidify these alloys as single crystals becomes increasingly difficult. Designing novel alloys that are amenable for large-scale manufacturing while achieving substantial improvements in temperature capability is extremely challenging. Recent studies have shown that selected elemental interactions may be effectively utilized to enhance the solidification characteristics of single crystal Ni-base superalloys containing Ru. Results stemming from both lab-scale and commercial foundry scale trials will be presented. The implications of these findings on the development of novel creep resistant single crystal alloys will be discussed.

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