Analysis on the stress corrosion crack inception based on pit shape and size of the FV520B tensile specimen

Xiang, Longhao; Pan, Jiabao; Chen, Songying

doi:10.1016/j.rinp.2018.03.005

Cited by 21 publications

(1 citation statement)

References 9 publications

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“…Some studies in the literature [35,36] have pointed out that there is a strong relation between stress corrosion cracking and pitting corrosion, making it necessary to further study the pits on the surfaces of stress corrosion tensile samples with constant load under high temperature and high pressure. Two representative zones were selected on the sample surfaces where the morphology of the corrosion pits was analyzed and measured by ultradepth-of-field 3D microscopy.…”

Section: Analysis Of Surface Damagementioning

confidence: 99%

A Study on the Influential Factors of Stress Corrosion Cracking in C110 Casing Pipe

Wang

Zeng

et al. 2022

Materials

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In this paper, we analyze the potential factors affecting the hydrogen sulfide type of stress corrosion cracking in C110 casing pipes. In order to further study these cracking factors, the methods of material property testing, scanning electron microscopy, XRD, TEM, and 3D ultra-depth-of-field were applied in the experiments. Besides that, an HTHP autoclave was independently designed by the laboratory to simulate the actual corrosion environment, and the potential factors affecting the stress corrosion cracking of C110 casing pipes were determined. The test results showed that the chemical composition, metallographic structure, hardness, and non-metallic inclusions of the two types of C110 casing pipes were all qualified. In fact, there remains a risk of stress corrosion cracking when the two kinds of C110 casing pipes serve under long-term field-working conditions. It is considered in this paper that the precipitates on the material surface, stress damage, and pitting corrosion are all critical factors affecting the stress corrosion cracking of casing pipes.

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Section: Analysis Of Surface Damagementioning

confidence: 99%