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Fabrication of W/Cu Functionally Graded Materials Used for Nuclear Fusion Devices by VPS-EBW Method and Research of Electron Beam Radiation
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TG113.2 TB34

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    Abstract:

    This paper introduces the fabrication method of W/Cu-FGM by Vacuum Plasma Spraying & Electron Beam Welding.Specimen could endure 20 s pluses under heat fluxes of 8 MW/m2.No damages appeared in the tested specimens which endured 26 s,22 s,20 s pluses under 2.5 MW/m2,4.5 MW/m2,6 MW/m2,respectively.Good performances were presented in the fatigue tests of the specimens.The specimens could endure 70 cycles fatigue under 6 MW/m2 and 20 s pluses;No damages appeared after the specimens were subject to 100 cyles fatigue test under 2.5 MW/m2,30 s and 4.5 MW/m2,25 s.Crack began to come into being during 90 cycles fatigue at the heat fluxes of 6 MW/m2,enduring 20 s.The specimen was analyzed by EDS.Impurities and pores were observed.

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[Chong Fali, Chen Junling, Li Jiangang. Fabrication of W/Cu Functionally Graded Materials Used for Nuclear Fusion Devices by VPS-EBW Method and Research of Electron Beam Radiation[J]. Rare Metal Materials and Engineering,2006,35(9):1509~1512.]
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  • Received:September 28,2005
  • Revised:September 28,2005
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