Creep-fatigue Life Prediction of Turbine Rotor 1Cr-Mo-V Forged Steels under Simulated Cyclic Thermal Stresses

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Other Title
  • 蒸気タービンローター用1Cr-Mo-V鍛鋼の実機条件下クリープ疲労寿命の予測
  • ジョウキ タービン ローターヨウ 1Cr Mo V タンコウ ノ ジツキ ジョ

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Abstract

Isothermal long term creep-fatigue and combined temperature-strain cycling tests under simulated thermal stresses of high temperature components were carried out with newly developed testing machines suitable to long running. Materials examined were three heats of turbine rotor 1Cr-Mo-V forged steel with different impurity contents. The obtained results were evaluated by the life prediction method proposed by the authors which was based on the linear damage rule looking at the creep rupture ductility of materials after long exposure at high temperatures.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 75 (12), 2242-2249, 1989

    The Iron and Steel Institute of Japan

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