Creep Life Prediction of Aircraft Gas Turbine material by ISM |
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ISM에 의한 항공기용 가스터빈 재료의 크리프 수명예측 |
공유식 |
부경대학교 기계공학부 |
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© 2001 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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Keywords:
Creep life prediction, Initial strain method, Larson-Miller parameter |
핵심용어:
크리프 수명예측, 초기연신률법, 라손-밀러 파라미터 |
Abstract |
In this paper, the real-time prediction of high temperature creep strength and creep for nickel-based superalloy Udimet 720 (high-temperature and high-pressure gas turbine engine materials) was performed on round-bar type specimens under pure load at the temperatures of 538, 649 and 704$^{circ}C$. The predictive equation of ISM creep has better reliability than that of LMP and LMP-ISM, and its reliability is getting better for long time creep prediction ($10^3~10^5$h). |