Investigations on the SCC initiation behavior of cold worked 316 L in high temperature oxygenated water at constant loads

Wang, Jiamei; Zhu, Tianyu; Chen, Kai; Bao, Yichen; Ma, Wujiang; Zhang, Miaomiao; Guo, Xianglong; Andresen, Peter L.; Zhang, Lefu

doi:10.1016/j.corsci.2022.110336

Investigations on the SCC initiation behavior of cold worked 316 L in high temperature oxygenated water at constant loads

Wang J, Zhu T, Chen K, Bao Y, Ma W, Zhang M, Guo X, Andresen PL & Zhang L

Citation

Wang, J., Zhu, T., Chen, K., Bao, Y., Ma, W., Zhang, M., … Zhang, L. (2022). Investigations on the SCC initiation behavior of cold worked 316 L in high temperature oxygenated water at constant loads. Corrosion Science, 203, 110336 (18 pp.). https://doi.org/10.1016/j.corsci.2022.110336

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:42762

The effect of pH on the stress corrosion cracking (SCC) initiation behavior of 20% cold worked 316 L stainless steel (SS) at constant load was investigated. No cracks initiated after 4050 h testing in 360 °C high temperature water with a pH_{325 °C} of 7.3, while extensive intergranular (IG) cracks initiated when the pH_{325 °C} was increased to 10.1. A minimum crack initiation time of 886 h was detected at 0.9 YS. Localized attack of grain boundaries (GBs) and deformation bands is considered to be the precursor of crack initiation. The mechanistic understanding of the crack initiation and propagation is discussed.

Details

Publication Type

Journal Article

Title

Investigations on the SCC initiation behavior of cold worked 316 L in high temperature oxygenated water at constant loads

Author(s)

Wang, Jiamei

Zhu, Tianyu

Chen, Kai (4603 Component Structural Integrity)

Bao, Yichen

Ma, Wujiang

Zhang, Miaomiao