Corrosion fatigue behavior of low alloy steels under simulated BWR coolant conditions

Huang, Jeng‐Yi; Young, M.C.; Jeng, Sheng-Long; Yeh, J. J.; Huang, Jiunn-Yuan; Kuo, R.C.

doi:10.1016/j.jnucmat.2010.07.029

Cited by 14 publications

(1 citation statement)

References 16 publications

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“…However, the specific factor effects of stress level, frequency, and stress intensity factor on the corrosion fatigue of 304L SS in high-temperature water were still not clear, especially under the actual service status of pipelines when subjected to a complex stress state, although several similar studies were conducted [16,21,22]. On the one hand, the effect of water chemistry on corrosion fatigue and SCC was not appropriate quantification under a complex service state [23][24][25]. On the other hand, the effect of the factors mentioned above on the oxidation behavior of the crack tip was not explained in detail, although it has an obvious interaction with the crack growth process.…”

Section: Introductionmentioning

confidence: 99%

Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment

Wu,

Liu,

et al. 2024

Metals

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The fatigue crack growth behavior of 304L austenitic stainless steel (SS) in a 325 °C high-temperature and high-pressure water environment were investigated by a corrosion fatigue test system, by electron back scatter diffraction (EBSD), and by a transmission electron microscope (TEM). The experimental results indicated that the crack growth rate (CGR) of 304L SS increases with increasing the stress intensity factor, stress level, and fatigue frequency (f). Compared to dissolved hydrogen (DH) in a high-temperature water environment, dissolved oxygen (DO) significantly enhances the CGR by about an order of magnitude higher. The crack tip of 304L SS after the corrosion fatigue test under higher stress levels is sharper, with more secondary cracks on the fracture surface, while the crack tip under lower stress levels is blunter with relatively fewer secondary cracks. The oxidation behavior at the crack tip was analyzed under different loading and water chemistry conditions, and a related effect on the crack tip and CGR was clarified.

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Section: Introductionmentioning

confidence: 99%

Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment

Wu,

Liu,

et al. 2024

Metals

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Effect of grain size on the low cycle fatigue behavior of 316LN stainless steel in high temperature water

Fang

et al. 2017

Materials and Corrosion

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The effects of grain size on the fatigue life and crack initiation mechanism of 316LN stainless steel (SS) in 320 °C water environment were investigated by corrosion fatigue cracking test system, scanning electron microscopy (SEM), electron backscatter diffraction technique (EBSD), and transmission electron microscopy (TEM). The grain sizes of the specimens were controlled to be 30, 80, and 210 µm, respectively, by different solution treatments. The experimental results indicated that the specimens with fine grains own the longest fatigue lives than those with intermediate and coarse grains. The fatigue stress amplitudes of the specimens increased with the grain refinement, although the fatigue lives of the specimens with intermediate and coarse grains were similar. The improvement of fatigue life for the specimens with fine grains was attributed to the decreasing of the crack initiation induced by refined crystalline strengthening. Moreover, the dislocation structures of the specimens with fine grains consisted of walls and cells. While planar slip bands were found in the specimens with intermediate and coarse grains.

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Corrosion Fatigue Testing of Low Alloy Steel in Water Environment with Low Levels of Oxygen and Varied Load Dwell Times

Gabris¹

2017

The Minerals, Metals &Amp; Materials Series

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Corrosion fatigue behavior of low alloy steels under simulated BWR coolant conditions

Cited by 14 publications

References 16 publications

Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment

Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment

Effect of grain size on the low cycle fatigue behavior of 316LN stainless steel in high temperature water

Corrosion Fatigue Testing of Low Alloy Steel in Water Environment with Low Levels of Oxygen and Varied Load Dwell Times

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