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Corrosion fatigue behaviour of 304 stainless steel under proportional and non‐proportional multiaxial loading condition |
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| Authors: | Y‐H. Huang S‐T. Tu F‐Z. Xuan T. Itoh |
| Affiliation: | 1. Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, , Shanghai, 200237 China;2. Faculty of Science and Engineering, Ritsumeikan University, , Shiga, 525‐8577 Japan |
| Abstract: | Corrosion fatigue and electrochemical tests under proportional loading and non‐proportional loading were conducted on 304 stainless steel in 0.63 mol L?1 NaCl solution at room temperature. Two biaxial loading paths were applied to study the effect of proportional loading and non‐proportional loading on corrosion fatigue behaviour. Surface and fractographic observations of multiaxial corrosion fatigue specimens were carried out by scanning electron microscopy. It was shown that proportional loading had a more significant effect on the occurrence of local corrosion compared with non‐proportional loading because the continuous rotation of the principal stress plane under non‐proportional loading inhibits the pit formation. |
| Keywords: | 304 stainless steel biaxial fatigue corrosion fatigue |