By D. Gandy, J. Shingledecker
Advances in fabrics expertise for Fossil energy crops: court cases from the 7th foreign convention, October 22-25, 2013, Waikoloa, Hawaii, united states.
One hundred eighty-five individuals representing 18 nations traveled from all over the world to take part within the EPRI seventh foreign convention on Advances in fabrics expertise for Fossil strength crops at the significant Island of Hawaii, united states. This convention outfitted at the good fortune of the former 6 meetings initially begun by means of Prof. R. (Vis) Viswanathan, EPRI (FASM) in 1995 in London, England and held each 3 years for the reason that that point in San Sebastian (Spain), Swansea (Wales), Hilton Head Island (USA), Marco Island (USA), and Santa Fe (USA). This court cases comprises the most important variety of papers ever amassed for this convention. Overwhelming reaction to the 2013 convention (over a 20% raise in variety of papers and technical talks) caused the organizers to carry the 1st ever poster consultation. EPRI and ASM have back partnered to submit this court cases that's prepared into nine topical parts: expertise overviews, nickel-based alloys for complicated ultrasupercritical strength vegetation, fabrics for generators, alloys T23/24, Grades 91/92, oxidation and corrosion, welding and weld functionality, new alloys innovations, and creep and common subject matters.
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Additional info for Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference
Thus, A617B OCC has also to be considered as a possible option for reduction of investment costs of 700°C technology. Furthermore, other Ni-based alloys like A263, HR6W and A625 will be tested. A263 shows a high potential in cost reduction but has not yet been in test operation. It is also planned to test other material like HR6W for the temperature range 620°C to 700°C from suppliers such as Sumitomo. These materials will be installed additionally to the ENCIO test program. The weldments of the material combinations A617B OCC – HR6W and A263 - A625 cast are tested and compared with each other.
When tested, all specimens broke at base material. We can see that the strength of the welded material is equivalent to or higher than that of HR6W without a weld joint. 31 Improvement of creep strength Long term reliability (including Weldment) Temp. ) design (Thermal Stress) Basic Engineering (Boiler Concept) System Boiler Technology Development Components Valves (SV/CV etc) DeSH (including Turbine bypass Spray ) Header Boiler •Life Assessment •Welding for Aged materials Fabrication Welding (including Dissmilar) Bending NDT Figure 12 Boiler development tasks Figure 13 Boiler Candidate Materials (Courtesy of Nippon Steel & Sumitomo Metal) Figure 14 HR6W creep rupture strength (Courtesy of Nippon Steel & Sumitomo Metal) 32 Figure 15 Creep rupture strength of HR6W weld (Courtesy of Nippon Steel & Sumitomo Metal and Babcock-Hitachi) We have made pipes of HR6W, HR35 and Alloy617 using the Ehrhardt push bench method (Figure 16).
It is also planned to test other material like HR6W for the temperature range 620°C to 700°C from suppliers such as Sumitomo. These materials will be installed additionally to the ENCIO test program. The weldments of the material combinations A617B OCC – HR6W and A263 - A625 cast are tested and compared with each other. This is necessary as the combinations A263 - A625 cast (neither with nor without heat treatment) and A617B OCC – HR6W have not yet been tested and investigated with the required heat treatment.
Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference by D. Gandy, J. Shingledecker