EFFECT OF POTENTIAL ON THE CORROSION FATIGUE CRACK GROWTH RATE IN AISI 304 STAINLESS STEEL IN SODIUM SULFATE SOLUTION AT 250 C.

Wen-Ta Tsai; A. Moccari; Z. Szklarska-Smialowska; D. D. Macdonald

doi:10.5006/1.3581920

EFFECT OF POTENTIAL ON THE CORROSION FATIGUE CRACK GROWTH RATE IN AISI 304 STAINLESS STEEL IN SODIUM SULFATE SOLUTION AT 250 C.

Wen-Ta Tsai, A. Moccari, Z. Szklarska-Smialowska, D. D. Macdonald

Research output: Contribution to specialist publication › Article

14 Citations (Scopus)

Abstract

The corrosion fatigue crack growth (FCG) behavior of sensitized AlSl 304 stainless steel was studied in 0. 01M Na//2SO//4 solution at 250 C. Crack growth rates at different frequencies ranging from 1. 0 to 8 multiplied by 10** minus **3 Hz and at different electrochemical potentials were measured with a sinusoidal loading waveform at a load ratio of 0. 5. The results show that the FCG rate and fracture morphology depend on frequency and applied potential. At low frequencies (below 8 multiplied by 10** minus **2 Hz), there is a critical potential (between minus 450 and minus 200 mV//H) above which the FCG rates are enhanced over those observed at lower potentials. Fracture morphology depends on potential as well as frequency. At low potentials and/or higher frequencies, transgranular cracking is the principal mode of failure; however, at high potentials and/or at low frequencies, fatigue cracks propagate intergranularly.

Original language	English
Pages	573-583
Number of pages	11
Volume	40
No.	11
Specialist publication	Corrosion
DOIs	https://doi.org/10.5006/1.3581920
Publication status	Published - 1984 Jan 1

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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title = "EFFECT OF POTENTIAL ON THE CORROSION FATIGUE CRACK GROWTH RATE IN AISI 304 STAINLESS STEEL IN SODIUM SULFATE SOLUTION AT 250 C.",

abstract = "The corrosion fatigue crack growth (FCG) behavior of sensitized AlSl 304 stainless steel was studied in 0. 01M Na//2SO//4 solution at 250 C. Crack growth rates at different frequencies ranging from 1. 0 to 8 multiplied by 10** minus **3 Hz and at different electrochemical potentials were measured with a sinusoidal loading waveform at a load ratio of 0. 5. The results show that the FCG rate and fracture morphology depend on frequency and applied potential. At low frequencies (below 8 multiplied by 10** minus **2 Hz), there is a critical potential (between minus 450 and minus 200 mV//H) above which the FCG rates are enhanced over those observed at lower potentials. Fracture morphology depends on potential as well as frequency. At low potentials and/or higher frequencies, transgranular cracking is the principal mode of failure; however, at high potentials and/or at low frequencies, fatigue cracks propagate intergranularly.",

author = "Wen-Ta Tsai and A. Moccari and Z. Szklarska-Smialowska and Macdonald, {D. D.}",

year = "1984",

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AU - Tsai, Wen-Ta

AU - Moccari, A.

AU - Szklarska-Smialowska, Z.

AU - Macdonald, D. D.

PY - 1984/1/1

Y1 - 1984/1/1

N2 - The corrosion fatigue crack growth (FCG) behavior of sensitized AlSl 304 stainless steel was studied in 0. 01M Na//2SO//4 solution at 250 C. Crack growth rates at different frequencies ranging from 1. 0 to 8 multiplied by 10** minus **3 Hz and at different electrochemical potentials were measured with a sinusoidal loading waveform at a load ratio of 0. 5. The results show that the FCG rate and fracture morphology depend on frequency and applied potential. At low frequencies (below 8 multiplied by 10** minus **2 Hz), there is a critical potential (between minus 450 and minus 200 mV//H) above which the FCG rates are enhanced over those observed at lower potentials. Fracture morphology depends on potential as well as frequency. At low potentials and/or higher frequencies, transgranular cracking is the principal mode of failure; however, at high potentials and/or at low frequencies, fatigue cracks propagate intergranularly.

AB - The corrosion fatigue crack growth (FCG) behavior of sensitized AlSl 304 stainless steel was studied in 0. 01M Na//2SO//4 solution at 250 C. Crack growth rates at different frequencies ranging from 1. 0 to 8 multiplied by 10** minus **3 Hz and at different electrochemical potentials were measured with a sinusoidal loading waveform at a load ratio of 0. 5. The results show that the FCG rate and fracture morphology depend on frequency and applied potential. At low frequencies (below 8 multiplied by 10** minus **2 Hz), there is a critical potential (between minus 450 and minus 200 mV//H) above which the FCG rates are enhanced over those observed at lower potentials. Fracture morphology depends on potential as well as frequency. At low potentials and/or higher frequencies, transgranular cracking is the principal mode of failure; however, at high potentials and/or at low frequencies, fatigue cracks propagate intergranularly.

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EFFECT OF POTENTIAL ON THE CORROSION FATIGUE CRACK GROWTH RATE IN AISI 304 STAINLESS STEEL IN SODIUM SULFATE SOLUTION AT 250 C.

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