Abstract
Ultrasonic corrosion fatigue tests were conducted for high strength austenitic stainless steels such as YUS270 and SUS304N2 in 3%NaCl aqueous solution. The reduction of giga-cycle corrosion fatigue strength of YUS270 and SUS304N2 was not observed at all, while the reduction of corrosion fatigue life was observed at higher stress amplitude. Corrosion pit was observed on corrosion fatigue crack initiation area. Striation was predominantly observed on crack propagation area in air and in 3% NaCl aqueous solution. The reduction of corrosion fatigue strength of high strength austenitic stainless steels such as YUS270 and SUS304N2 is due to the corrosion pit formation at corrosion fatigue crack initiation area. It can be concluded that the higher the ultimate tensile strength of austenitic stainless steels the higher the giga-cycle corrosion fatigue strength in 3%NaCl aqueous solution is.
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© 2013 TMS (The Minerals, Metals & Materials Society)
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Ebara, R., Yamaguchi, Y., Kanei, D., Yamamoto, Y. (2013). Ultrasonic Corrosion Fatigue Behavior of High Strength Austenitic Stainless Steels. In: Srivatsan, T.S., Imam, M.A., Srinivasan, R. (eds) Fatigue of Materials II. Springer, Cham. https://doi.org/10.1007/978-3-319-48105-0_17
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DOI: https://doi.org/10.1007/978-3-319-48105-0_17
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