The effects of rolling and sensitization treatments on the stress corrosion cracking of 304L stainless steel in salt-spray environment |
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| Affiliation: | 1. Institute of Materials Engineering, National Taiwan Ocean University, Keelung 202, Taiwan, ROC;2. Institute of Nuclear Energy Research, Division of Nuclear Fuels and Materials, Lungtan, Taoyuan 325, Taiwan, ROC;1. State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. Suzhou Nuclear Power Research Institute, Suzhou 215004, China;1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China;2. Hubei Engineering Technology Research Center of Marine Materials and Service Safety, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China;3. Department of Mechanical Engineering, University of Calgary, Calgary, Alberta, T2 N 1N4, Canada;1. Department of Materials, University of Oxford, Parks Road, OX1 3PH, Oxford, UK;2. Institute of Nuclear Safety Systems, Inc. (INSS), 64 Sata, Mihama-cho, Mikata-gun, Fuki, Mihama, 919-1205, Japan;1. University of Oxford, Department of Materials, Parks Road, OX1 3PH Oxford, UK;2. Institute of Nuclear Safety Systems, Inc. (INSS), 64 Sata, Mihama-cho, Mikata-gun, Fuki, Mihama 919-1205, Japan |
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| Abstract: | U-bent and notched tensile tests in a 80 °C salt-spray environment were conducted to evaluate the effect of cold rolling at room temperature (CR), warm rolling at 150 °C (WR), and a sensitization at 650 °C/10 h (CRS and WRS) on the hydrogen embrittlement (HE) susceptibility of the 304L stainless steel. The CR specimen exhibited the highest crack growth rate with a greater number of short cracks found in the CRS specimen in U-bent tests. The CR specimen was resistant to HE in notched tensile tests relative to other specimens. Cracking in these specimens was more likely to initiate at the slip bands. |
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