Human Factors

Harron, Lorna

doi:10.1002/9781119019213.ch09

Cited by 2 publications

(2 citation statements)

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“…[ 114 ] If the through‐wall crack grows axially in an unstable manner, rupture instead of leak failure may occur resulting in severe impact on human and environmental safety. [ 115,116 ]…”

Section: Fracture Mechanisms In Sscmentioning

confidence: 99%

“…[114] If the through-wall crack grows axially in an unstable manner, rupture instead of leak failure may occur resulting in severe impact on human and environmental safety. [115,116] The combination of these stress states can result in a superposition of stress that may initiate a new crack or propagate an existing crack, and for SSC, this risk is increased as the presence of hydrogen can change the ductility and toughness of steels in an aqueous H 2 S sour environment.…”

Section: Hoop Stressmentioning

confidence: 99%

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A Review of the Factors That Can Increase the Risk of Sulfide Stress Cracking in Thermomechanical Controlled Processed Pipeline Steels

Hiew Sze Kei,

van Haaften,

Britton

et al. 2023

Adv Eng Mater

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This review aims to improve our understanding of the important factors which influence the susceptibility of thermomechanical controlled processed (TMCP) steels to sulfide stress cracking (SSC). Mechanisms involved in hydrogen embrittlement (HE) from three perspectives are focused on: the microstructure constituents of TMCP steels; environmental factors; and fracture mechanism of SSC. Microstructures are reviewed as they affect the diffusion and trapping of hydrogen that can reduce the resistance to fracture. Environmental factors discussed highlight that when exposed to an aqueous H2S environment, a sulfide layer can form and influence the ingress of hydrogen, and this is affected by pH, temperature, and H2S partial pressure. Fracture is influenced by the nature of the crack tip and the crack tip plastic zone during crack propagation, and hydrogen can significantly affect crack tip growth. This review provides a critical assessment of the interplay between these three factors and aims to provide understanding to enhance our engineering approaches to manage and mitigate against fracture of TMCP steels.

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Section: Fracture Mechanisms In Sscmentioning

confidence: 99%

Section: Hoop Stressmentioning

confidence: 99%