Effects of potential and loading frequency on corrosion fatigue behavior of 2205 duplex stainless steel

W. T. Tsai; I. H. Lo

doi:10.5006/1.3280684

Effects of potential and loading frequency on corrosion fatigue behavior of 2205 duplex stainless steel

W. T. Tsai, I. H. Lo

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Corrosion fatigue behavior of 2205 duplex stainless steel (DSS IUNS S318031) in 2 M sulfuric acid (H₂SO₄) + 0.7 M hydrochloric acid (HCI) solution at various loading frequencies and under selective dissolution conditions was investigated. The mechanical and chemical effects on the fatigue crack initiation as well as crack propagation were analyzed using micrographical examination. The experimental results showed that the fatigue life in the mixed acid solution was frequency-dependent, and almost one order of magnitude lower than that in air at 1 Hz. The micrographical examinations indicated that selective dissolution of the constituent phase could affect the fatigue crack initiation process in a complicated manner. The fracture surface morphology could also be modified by selective dissolution, the extent to which was dependent on loading frequency.

Original language	English
Pages (from-to)	155-163
Number of pages	9
Journal	Corrosion
Volume	64
Issue number	2
DOIs	https://doi.org/10.5006/1.3280684
Publication status	Published - 2008 Feb

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
General Materials Science

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abstract = "Corrosion fatigue behavior of 2205 duplex stainless steel (DSS IUNS S318031) in 2 M sulfuric acid (H2SO4) + 0.7 M hydrochloric acid (HCI) solution at various loading frequencies and under selective dissolution conditions was investigated. The mechanical and chemical effects on the fatigue crack initiation as well as crack propagation were analyzed using micrographical examination. The experimental results showed that the fatigue life in the mixed acid solution was frequency-dependent, and almost one order of magnitude lower than that in air at 1 Hz. The micrographical examinations indicated that selective dissolution of the constituent phase could affect the fatigue crack initiation process in a complicated manner. The fracture surface morphology could also be modified by selective dissolution, the extent to which was dependent on loading frequency.",

author = "Tsai, {W. T.} and Lo, {I. H.}",

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T1 - Effects of potential and loading frequency on corrosion fatigue behavior of 2205 duplex stainless steel

AU - Tsai, W. T.

AU - Lo, I. H.

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N2 - Corrosion fatigue behavior of 2205 duplex stainless steel (DSS IUNS S318031) in 2 M sulfuric acid (H2SO4) + 0.7 M hydrochloric acid (HCI) solution at various loading frequencies and under selective dissolution conditions was investigated. The mechanical and chemical effects on the fatigue crack initiation as well as crack propagation were analyzed using micrographical examination. The experimental results showed that the fatigue life in the mixed acid solution was frequency-dependent, and almost one order of magnitude lower than that in air at 1 Hz. The micrographical examinations indicated that selective dissolution of the constituent phase could affect the fatigue crack initiation process in a complicated manner. The fracture surface morphology could also be modified by selective dissolution, the extent to which was dependent on loading frequency.

AB - Corrosion fatigue behavior of 2205 duplex stainless steel (DSS IUNS S318031) in 2 M sulfuric acid (H2SO4) + 0.7 M hydrochloric acid (HCI) solution at various loading frequencies and under selective dissolution conditions was investigated. The mechanical and chemical effects on the fatigue crack initiation as well as crack propagation were analyzed using micrographical examination. The experimental results showed that the fatigue life in the mixed acid solution was frequency-dependent, and almost one order of magnitude lower than that in air at 1 Hz. The micrographical examinations indicated that selective dissolution of the constituent phase could affect the fatigue crack initiation process in a complicated manner. The fracture surface morphology could also be modified by selective dissolution, the extent to which was dependent on loading frequency.

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Effects of potential and loading frequency on corrosion fatigue behavior of 2205 duplex stainless steel

Abstract

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