Volume 22 Issue 9
Sep.  2007
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Article Navigation >  Journal of Aerospace Power  > 2007  >  22(9): 1526-1531
ZHOU Tian-peng, YANG Xiao-guang, HOU Gui-cang, SHI Duo-qi, CONG Pei-hong. Experimental analysis of low-cycle and creep fatigue for directionally solidified DZ125 with a hole[J]. Journal of Aerospace Power, 2007, 22(9): 1526-1531.
Citation: ZHOU Tian-peng, YANG Xiao-guang, HOU Gui-cang, SHI Duo-qi, CONG Pei-hong. Experimental analysis of low-cycle and creep fatigue for directionally solidified DZ125 with a hole[J]. Journal of Aerospace Power, 2007, 22(9): 1526-1531.
shu

Experimental analysis of low-cycle and creep fatigue for directionally solidified DZ125 with a hole

  • 1.

    School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2.

    Shenyang Aeroengine Research Institute, China Aviation Industry Corporation I, Shenyang 110015, China

  • Received Date: 2006-09-07
  • Rev Recd Date: 2006-12-13
  • Publish Date: 2007-09-28
    Abstract
  • A low-cycle/creep fatigue test was conducted for directionally solidified DZ125 component with a hole under high temperature conditions.The purpose of this test was to simulate hollow turbine rotor blade for film cooling of aeroengine.The test scheme was planned according to geometric characteristics,temperature and load conditions of hollow turbine rotor blade.The test scheme and test results were described,covering ser-vice life analysis,crack expansion analysis and metallographic analysis.The results show that holes' stress con-centration and creep are major contributing factor to the damage of components,and electric discharge machine(EDM) hole features is decisive to the crack initiation.

     

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