Ultrasuper critical (USC) thermal plants are now in operation around the globe. Their applications include superheaters and reheaters, which generally require high temperature/pressure conditions. To withstand these harsh conditions, an austenitic heat-resistant HR3C (ASME TP310NbN) steel was developed for metal creep resistance. As the designed life time of a typical thermal plant is 150,000 h, it is very important to predict long-term creep behavior. In this study, a three-state variable continuum damage model (CDM) was modified for better estimation of long-term creep life. Accelerated uniaxial creep tests were performed to determine the material parameters. Also, the rupture type and microstructural precipitation were observed by scanning electron microscopy. The creep life of HR3C steel was predicted using only relatively short-term creep test data and was then successfully verified by comparison with the long-term creep data.
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August 2018
Research-Article
Modified Dyson Continuum Damage Model for Austenitic Steel Alloy
Seok Jun Kang,
Seok Jun Kang
School of Mechanical Engineering,
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
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Hoomin Lee,
Hoomin Lee
School of Mechanical Engineering,
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Search for other works by this author on:
Jae Boong Choi,
Jae Boong Choi
School of Mechanical Engineering,
Sungkyunkwan University,
Suwon 440-746, Gyeonggi-do, Korea
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu
,Suwon 440-746, Gyeonggi-do, Korea
Search for other works by this author on:
Moon Ki Kim
Moon Ki Kim
School of Mechanical Engineering,
Sungkyunkwan University,
Suwon 440-746, Gyeonggi-do, Korea
e-mail: mmkkim@me.skku.ac.kr
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu
,Suwon 440-746, Gyeonggi-do, Korea
e-mail: mmkkim@me.skku.ac.kr
Search for other works by this author on:
Seok Jun Kang
School of Mechanical Engineering,
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Hoomin Lee
School of Mechanical Engineering,
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu,
Suwon 440-746, Gyeonggi-do, Korea
Jae Boong Choi
School of Mechanical Engineering,
Sungkyunkwan University,
Suwon 440-746, Gyeonggi-do, Korea
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu
,Suwon 440-746, Gyeonggi-do, Korea
Moon Ki Kim
School of Mechanical Engineering,
Sungkyunkwan University,
Suwon 440-746, Gyeonggi-do, Korea
e-mail: mmkkim@me.skku.ac.kr
Sungkyunkwan University,
300 Chunchun-dong, Jangan-gu
,Suwon 440-746, Gyeonggi-do, Korea
e-mail: mmkkim@me.skku.ac.kr
1These authors contributed equally to this work.
2Corresponding author.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received January 25, 2018; final manuscript received March 5, 2018; published online May 21, 2018. Assoc. Editor: Steve J. Hensel.
J. Pressure Vessel Technol. Aug 2018, 140(4): 041404 (6 pages)
Published Online: May 21, 2018
Article history
Received:
January 25, 2018
Revised:
March 5, 2018
Citation
Kang, S. J., Lee, H., Choi, J. B., and Kim, M. K. (May 21, 2018). "Modified Dyson Continuum Damage Model for Austenitic Steel Alloy." ASME. J. Pressure Vessel Technol. August 2018; 140(4): 041404. https://doi.org/10.1115/1.4039883
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