Fatigue crack growth thresholds ΔKth define stress intensity factor range below which cracks will not grow. The thresholds ΔKth are useful in industries to determine durability lifetime. Although massive fatigue crack growth experiments for stainless steels in air environment had been reported, the thresholds ΔKth are not codified at the American Society of Mechanical Engineers (ASME) Code Section XI, as well as other fitness-for-service (FFS) codes and standards. Based on the investigation of a few FFS codes and review of literature survey of experimental data, the thresholds ΔKth exposed to air environment have been developed for the ASME Code Section XI. A guidance of the thresholds ΔKth for austenitic stainless steels in air at room and high temperatures can be developed as a function of stress ratio R.
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June 2018
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Development of Fatigue Crack Growth Thresholds for Austenitic Stainless Steels Exposed to Air Environment for ASME Code Section XI
Kunio Hasegawa,
Kunio Hasegawa
Center of Advanced Innovation Technologies,
Technical University of Ostrava,
17. Listopadu 15/2172,
Ostrava-Poruba 708 33, Czech
e-mail: kunioh@kzh.biglobe.ne.jp
Technical University of Ostrava,
17. Listopadu 15/2172,
Ostrava-Poruba 708 33, Czech
e-mail: kunioh@kzh.biglobe.ne.jp
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Saburo Usami
Saburo Usami
Search for other works by this author on:
Kunio Hasegawa
Center of Advanced Innovation Technologies,
Technical University of Ostrava,
17. Listopadu 15/2172,
Ostrava-Poruba 708 33, Czech
e-mail: kunioh@kzh.biglobe.ne.jp
Technical University of Ostrava,
17. Listopadu 15/2172,
Ostrava-Poruba 708 33, Czech
e-mail: kunioh@kzh.biglobe.ne.jp
Saburo Usami
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received September 11, 2017; final manuscript received January 25, 2018; published online April 4, 2018. Assoc. Editor: Kiminobu Hojo.
J. Pressure Vessel Technol. Jun 2018, 140(3): 034501 (5 pages)
Published Online: April 4, 2018
Article history
Received:
September 11, 2017
Revised:
January 25, 2018
Citation
Hasegawa, K., and Usami, S. (April 4, 2018). "Development of Fatigue Crack Growth Thresholds for Austenitic Stainless Steels Exposed to Air Environment for ASME Code Section XI." ASME. J. Pressure Vessel Technol. June 2018; 140(3): 034501. https://doi.org/10.1115/1.4039207
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