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J. Ocean Eng. Technol. 1998;12(2):71-78.
Lee, Sang-Guk;Jeong, Min-Hwa;O, Se-Gyu;Song, Jeong-Geun;
ISM에 의한 발전용 고온 배관재료 2.25Cr1Mo강의 고온 크리프 수명 예측에 관한 연구
이상국;정민화;오세규;송정근;
Key Words: Creep Stress, Creep Life Prediction, Rupture Time, ISM, LMP, Initial Strain Method, Larson Miller Parameter
핵심용어: 크리프 응력, 크리프 수명 예측, 파단시간, 초기연신율법, 라슨밀러 파라미터
Abstract
In this report for the assessment of creep properties of high-temperature tube materials in power plants, the long-time($10^4$~105h) creep life prediction by ISM for 2.25Cr1Mo steel was studied. It was clarified experimentally and quantitatively that the newly developed long-time creep life prediction equation was very coincident with the actual experimental data with high confidence, and the model was $t_r=alphavarepsilon_0^{eta}sigma^{-1}$.
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