Corrosion fatigue behaviour of 304 stainless steel under proportional and non-proportional multiaxial loading condition

• Published in: Fatigue & fracture of engineering materials & structures Vol. 37; no. 4; pp. 436 - 445
• Main Authors: Huang, Y-H., Tu, S-T., Xuan, F-Z., Itoh, T.
• Format: Journal Article
• Language: English
• Published: Oxford Blackwell Publishing Ltd 01.04.2014; Blackwell; Wiley Subscription Services, Inc
• Subjects: 304 stainless steel; Applied sciences; biaxial fatigue; Corrosion; Corrosion environments; corrosion fatigue; Exact sciences and technology; Fatigue; Load; Materials fatigue; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals. Metallurgy; Scanning electron microscopy; Stainless steel; Austenitic stainless steel; biaxial fatigue; Stainless steel-304; Corrosion; 304 stainless steel; Stainless steel; Mechanical properties; Biaxial load; Multiaxial load; Corrosion fatigue
• ISSN: 8756-758X; 1460-2695
• DOI: 10.1111/ffe.12128

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.