The corrosion fatigue performance of a superduplex stainless steel in two different chloride-bearing solutions ( and ) is explored in the present paper. Fatigue life results and surface damage analysis show a strong influence of the applied strain amplitude, as well as of the chloride content, on the cyclic response. Moreover, there is an interaction between both factors because corrosion fatigue mechanisms at low and high strain amplitudes are not comparable, since ferrite is only fully plastically active at high strains. Whereas a detrimental effect of the solution on the fatigue strength is observed, longer fatigue lives were attained in solution, even longer than in air. Surface damage inspection and residual solutions analysis support a critical anodic dissolution rate, which would act as a polishing effect, as the main reason for this unexpected result.
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e-mail: antonio.manuel.mateo@upc.edu
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October 2007
Technical Papers
Chloride Content Effect on the Corrosion Fatigue Properties of Superduplex Stainless Steels
A. Gironès,
A. Gironès
Dept. Ciència dels Materials i Enginyeria Metal.lúrgica,
Universitat Politècnica de Catalunya
, Avda Diagonal 647, 08028 Barcelona, Spain
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M. Anglada,
M. Anglada
Dept. Ciència dels Materials i Enginyeria Metal.lúrgica,
Universitat Politècnica de Catalunya
, Avda Diagonal 647, 08028 Barcelona, Spain
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A. Mateo
A. Mateo
Dept. Ciència dels Materials i Enginyeria Metal.lúrgica,
e-mail: antonio.manuel.mateo@upc.edu
Universitat Politècnica de Catalunya
, Avda Diagonal 647, 08028 Barcelona, Spain
Search for other works by this author on:
A. Gironès
Dept. Ciència dels Materials i Enginyeria Metal.lúrgica,
Universitat Politècnica de Catalunya
, Avda Diagonal 647, 08028 Barcelona, Spain
M. Anglada
Dept. Ciència dels Materials i Enginyeria Metal.lúrgica,
Universitat Politècnica de Catalunya
, Avda Diagonal 647, 08028 Barcelona, Spain
A. Mateo
Dept. Ciència dels Materials i Enginyeria Metal.lúrgica,
Universitat Politècnica de Catalunya
, Avda Diagonal 647, 08028 Barcelona, Spaine-mail: antonio.manuel.mateo@upc.edu
J. Eng. Mater. Technol. Oct 2007, 129(4): 588-593 (6 pages)
Published Online: July 10, 2007
Article history
Received:
March 6, 2006
Revised:
July 10, 2007
Citation
Gironès, A., Anglada, M., and Mateo, A. (July 10, 2007). "Chloride Content Effect on the Corrosion Fatigue Properties of Superduplex Stainless Steels." ASME. J. Eng. Mater. Technol. October 2007; 129(4): 588–593. https://doi.org/10.1115/1.2772325
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