Oxidation kinetics of recently developed ferritic heat-resistant steels, HCM12A, NF616, and HCM2S, were investigated in a superheated steam to evaluate the effects of chemical composition of the steels, testing temperature (560–700°C), steam pressure (1–10 MPa), and degrees of microstructural evolution by aging on oxidation. The contribution of alloyed Cr to oxidation resistance was pronounced above 600°C, while no material dependency was found at 600°C or lower. The apparent activation energy of the oxidation rate clearly changed at around 600°C for NF616 and HCM12A. In contrast, HCM2S showed single activation energy over the range of temperatures. Although temperature and chemical composition were the major factors, steam pressure also showed a clear negative effect on the oxidation rate in the lower temperature range, 570–600°C.
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August 2001
Technical Papers
Oxidation Rate of Advanced Heat-Resistant Steels for Ultra-Supercritical Boilers in Pressurized Superheated Steam
Yong-Sun Yi, Research Associate,
Yong-Sun Yi, Research Associate
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Yutaka Watanabe, Associate Professor,,
e-mail: yutaka@rift.mech.tohoku.ac.jp
Yutaka Watanabe, Associate Professor,
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Tatsuo Kondo, Professor,
Tatsuo Kondo, Professor
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Hiroshi Kimura, Assistant Manager,
Hiroshi Kimura, Assistant Manager
Thermal Power Planning Group, Thermal Power Engineering Department, Tohoku Electric Power Company, Sendai 980-8550, Japan
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Minoru Sato, Manager
Minoru Sato, Manager
Thermal Power Planning Group, Thermal Power Engineering Department, Tohoku Electric Power Company, Sendai 980-8550, Japan
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Yong-Sun Yi, Research Associate
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
Yutaka Watanabe, Associate Professor,
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
e-mail: yutaka@rift.mech.tohoku.ac.jp
Tatsuo Kondo, Professor
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
Hiroshi Kimura, Assistant Manager
Thermal Power Planning Group, Thermal Power Engineering Department, Tohoku Electric Power Company, Sendai 980-8550, Japan
Minoru Sato, Manager
Thermal Power Planning Group, Thermal Power Engineering Department, Tohoku Electric Power Company, Sendai 980-8550, Japan
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division, April 17, 2000; revised manuscript received February 28, 2001. Associate Editor: C. E. Jaske.
J. Pressure Vessel Technol. Aug 2001, 123(3): 391-397 (7 pages)
Published Online: February 28, 2001
Article history
Received:
April 17, 2000
Revised:
February 28, 2001
Citation
Yi, Y., Watanabe, Y., Kondo, T., Kimura, H., and Sato, M. (February 28, 2001). "Oxidation Rate of Advanced Heat-Resistant Steels for Ultra-Supercritical Boilers in Pressurized Superheated Steam ." ASME. J. Pressure Vessel Technol. August 2001; 123(3): 391–397. https://doi.org/10.1115/1.1373656
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