International Journal of Fluid Machinery and Systems

한국유체기계학회 (Korean Society for Fluid machinery)
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Hydraulic Runner Design Method for Lifetime

  • 심사 : 2010.11.29
  • 발행 : 2010.12.31
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초록

Quest for reliability of hydraulic runners is a concern for all mature electricity producers. The fatigue damage caused by dynamics loads is frequently the root cause of runner failure. This paper presents the damage tolerance approach based on fracture mechanics as the method chosen by Alstom and Hydro-Qu$\acute{e}$bec to predict effects of damage on runner lifetime and consequently to be use as a design method. This is sustained by a research on fracture mechanics properties of runner materials and by recommendations on the strategy to define a safety margin for design. The acquired knowledge permits to identify potential improvement of the runner lifetime without significant cost increase, like being more specific on some chemical composition or heat treatment.

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참고문헌

  1. Brekke H., 1986, “Design and material quality for high head turbines,” IAHR 13th Symposium, Montreal, Canada.
  2. Chen W.C., Liu H.W., 1977, “Fatigue crack growth at elevated temperature 316 stainless steel and H-13 steel,” National Aeronautics and Space Administration (NASA), Syracuse, USA.
  3. Gavenda D.J., Michaud W.F., Galvin T.M., 1996, “Effects of thermal aging on fracture toughness and charpy-impact strength of stainless steel pipe welds,” Report NUREG/CR-6428, US Nuclear Regulatory Commission, Washington, USA, 72 p.
  4. James L.A., Mills W.J., 1988, “Fatigue-crack propagation and fracture toughness behavior of cast stainless steels,” Engineering Fracture Mechanics, Vol. 29, No. 4, pp. 423-434. https://doi.org/10.1016/0013-7944(88)90030-6
  5. Kwon J.D., Park J.C., Lee Y-S., 2000, “An inverstigation of the degradation characterictics for casting stainless steel, CF8M, under high temperatures,” Nuclear Engineering and Design, Vol. 198, pp. 227-240. https://doi.org/10.1016/S0029-5493(99)00315-5
  6. Lucas G., Ritchie R., 1983, “Damage analysis and fundamental studies,” Proceedings of the 2nd workshop on fusion environment sensitive flow and fracture processes, US Departement of Energy, Washington, USA.
  7. Mills W.J., 1997, “Fracture toughness of type 304 and 316 stainless steels and their welds,” The Institute of Materials and ASM International, International Materials Reviews, Vol. 42, No. 2, pp. 45-82.
  8. MILLS W.J., 1988, “Heat-to-heat variations in the fracture toughness of austenitic stainless steels,” Engineering Fracture Mechanics, Vol. 30, pp. 469-492. https://doi.org/10.1016/0013-7944(88)90058-6
  9. Shih Y.S., Chen J.J., 1999, “The frequency effect on the fatigue crack growth rate of 304,” Nuclear Engineering and Design, Vol. 191, pp. 225-230. https://doi.org/10.1016/S0029-5493(99)00144-2
  10. Sokolov M.A., Robertson J.P., Snead L.L., 2002, “Fracture toughness characterization of 304L and 316L austenitic stainless steels and alloy 718 after irradiation in high-energy, mixed proton/neutron spectrum, Effects of Radiation on Materials,” 20th International Symposium, American Society for Testing and Materials, West Conshohocken, USA.
  11. Structural Alloys Handbook, Edition 1996, Edited by John M. Holt, CINDAS/Purdue University, West Lafayette, USA, 1996.
  12. Tanaka H., 1992, “Studies on dynamic stress of runners for the design of 760 meter head pump-turbines,” IAHR 16th Symposium, Sao Paulo, Brazil.
  13. Taylor D., 1985, “A compendium of fatigue thresholds and growth rates,” Engineering Materials Advisory Services, Warley, England, 389 pp.
  14. Tsay L.W., Liu Y.C., Young M.C., 2004, “Fatigue crack growth of AISI 304 stainless steel welds in air and hydrogen,” Materials Science and Engineering, Vol. A 374, pp. 204-210. https://doi.org/10.1016/j.msea.2004.02.018
  15. K. Uimonen, 1984, Master Thesis, Tampere University of Technology, Finland. Courtesy of Lokomo Steels.
  16. Lanteigne, J., Sabourin, M., Bui-Quoc, T. and Julien, D., 2007, “A Comprehensive Research Program on Crack Propagation Characteristics of the Base Material used in Hydraulic Turbine Runners,” WaterPower XV, hattanooga, USA.
  17. Lanteigne J., Sabourin M., Bui-Quoc T. and Julien D., 2008, “The Characteristics of the Steels used in Hydraulic Turbine runners,” IAHR 24th Symposium on Hydraulic Machinery and Systems, Foz do Iguassu, Brasil.
  18. Carrouge D., 2003, “Phase transformations in welded supermartensitic stainless steels.” PhD Thesis University of Cambridge.
  19. Thibault D., Thomas M., Bocher P., 2009, “Residual stress and microstructure in welds of 13%Cr-4%Ni martensitic stainless steel,” J. Mater. Process Tech, Vol. 209, No. 4, pp. 2195-2202. https://doi.org/10.1016/j.jmatprotec.2008.05.005
  20. Casas W.J.P., Henke S.L., Novicki N., 2009, “Fracture toughness of Ca6NM alloy, quenched and tempered and of its welded joint without PWHT,” Welding International, Vol. 23, No. 3, March 2009, pp. 166-172. https://doi.org/10.1080/09507110802543344
  21. Elber W., 1970, “Fatigue crack closure under cyclic tension,” Engineering Fracture Mechanics, vol. 2, pp. 37-45. https://doi.org/10.1016/0013-7944(70)90028-7
  22. Suresh S., 1998, Fatigue of materials, 2nd ed. Cambridge University Press.
  23. ASTM, “Standard Test Method for Determining Residual Stresses by the Hole Drilling Strain-Gage Method E837-99, 10 pp. 1999.
  24. Prime M. B, 2001, “Cross-sectional mapping of residual stresses by measuring the surface contour after a cut,” Journal of Engineering Materials and Technology, Vol. 123, pp. 162-168. https://doi.org/10.1115/1.1345526
  25. Moisan É., Sabourin M., Bernard M. and Bui-Quoc T., 2006, “Residual Stress Measurement in Hydraulic Turbine Welded Joints,” IAHR 23th Symposium on Hydraulic Machinery and Systems, Yokohama, Japan.
  26. Thibault D., Bocher P., Thomas M., Gharghouri M., Cote M., 2009, “Residual stress characterization in low transformation temperature 13%Cr-4%Ni stainless steel weld by neutron diffraction and the contour method,” Mat. Sci. Eng. A.

피인용 문헌

  1. The effect of materials properties on the reliability of hydraulic turbine runners vol.8, pp.4, 2015, https://doi.org/10.5293/IJFMS.2015.8.4.254