Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Improvement of long-time creep life prediction of steam turbine rotor steel

증기 터빈축 강재의 장시간 크리프 수명 예측법 개선

  • 오세규 (부산수산대학교, 기계공학과) ;
  • 정순억 (경상대학교 수대 기관공학과) ;
  • 전태언 (부산수산대학교, 기계공학과)
  • Published : 1996.02.01
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Abstract

This paper deals with a study on improvement of long-time creep life prediction of steam turbine rotor steels by using initial strain method as a new approach at high temperatures of 500 to 70$0^{\circ}C$ . The main result shows that the inital strain method could be reliably utilized to predict and evaluate the long-time creep life as creep rupture strength and that the predicting equation for long-time creep life under a certain creep stress at a certain high temperature could be empirically derived out from each initial instantaneous strain measured.

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References

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