Corrosion fatigue crack growth behavior of pipeline steel under underload-type variable amplitude loading schemes

Yu, Min; Xing, Xiao; Zhang, Hao; Zhao, Jiaxi; Eadie, R.L.; Chen, Weixing; Been, Jenny; Boven, Greg Van; Kania, Richard

doi:10.1016/j.actamat.2015.05.049

Cited by 54 publications

(23 citation statements)

References 34 publications

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“…Experimental observations (Vosikovsky, 1975;Stephens et al, 2000;Holtam, 2010;Yu et al, 2015) have confirmed that CF can change the crack growth behaviour and lead to remarkably higher crack growth rate than that of fatigue in air for carbon pipeline steels such as X65 (shown in Fig. 1), and a few researchers have examined the CF damage in the view of the consequently lower overall fatigue life.…”

Section: Accepted Manuscriptmentioning

confidence: 94%

“…It is generally believed that in an environment with stable corrosiveness, the fatigue crack growth rate increases with the decrease of the frequency. But as mentioned in Yu et al (2015), observations from fatigue tests in corrosive environments showed that there exists a critical frequency , under which the material properties show the same level of degradation. According to the corrosion-crack correlation model, the lower cyclic load frequency extends the exposure time of the material to the corrosive environment, and this allows more hydrogen atoms to diffuse to a longer distance in front of the crack tip within each loading cycle and thus a higher .…”

Section: Applicationmentioning

confidence: 96%

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An extended engineering critical assessment for corrosion fatigue of subsea pipeline steels

Cheng

Chen

2018

Engineering Failure Analysis

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Newcastle University ePrints -eprint.ncl.ac.uk Cheng A, Chen N-Z. An extended engineering critical assessment for corrosion fatigue of subsea pipeline steels. Engineering Failure Analysis 2018, 84, 262-275 AbstractEngineering critical assessment (ECA) is widely used to assess the structural integrity in offshore industry. But industry standards provide limited guidance on ECAs of structures subjected to corrosion fatigue (CF). In this paper, a critical stress intensity factor (SIF) derived from a corrosioncrack correlation model is proposed to improve the traditional ECA for steel structures in seawater.The proposed critical SIF extends the traditional ECA for CF in that it accounts for the influence of load frequency and initial crack size on the model selection within current ECA guidelines for the ECA of marine structures under CF. The extended ECA is applied for X65 carbon pipeline steels subjected to CF. The crack growth curves are built using a three-stage CF crack growth model and the experimental data. Fatigue lives are calculated based on those curves as well as traditional ECA models. Results show that the critical SIF can effectively improve the ECA for X65 carbon pipeline steels under CF. The extended ECA provides a reasonable assessment with reduced conservatism in contrast to the traditional ECA for CF.

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Section: Accepted Manuscriptmentioning

confidence: 94%

Section: Applicationmentioning

confidence: 96%

An extended engineering critical assessment for corrosion fatigue of subsea pipeline steels

Cheng

Chen

2018

Engineering Failure Analysis

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“…The (da/dN) HAC term takes account for both the HEDE theory and Lynch's theory, where the former expects the accumulation of H at the crack front direction to diminish the free surface energy and cause crack propagation [16,17] and the latter considers the coalescence of the minor defects with cracks due to H effects [18][19][20]. As hydrogen atoms saturate in the plastic zone, two mechanisms will enhance the crack propagation rate to reach maximum rate, as suggested by the recent experiments [15]. Since both mechanisms are related with hydrogen diffusion, the total hydrogen assisting cracking rate is naturally expected to have a power law relationship with cracking propagation rate based on HEDE.…”

Section: Introductionmentioning

confidence: 91%

“…It determines whether cracks can be re-sharpened or blunted in pipeline steel [14]. A recent study has illustrated that there is a minimum loading frequency (f critical ) under which the crack propagation rate would reach maximum and keep constant [15]. A crack propagation model considering both f critical and hydrogen diffusion can be written as follows:…”

Section: Introductionmentioning

confidence: 99%

Prediction of crack propagation under cyclic loading based on hydrogen diffusion

2015

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“…However, other studies have estimated this release rate at 8.5-15 ts -1 . Importantly, these figures depend on the pipe diameter, puncture size and the level of impurities that may affect the CO 2 stream phase, operating temperature and pressure, as well as on whether the CO 2 release and dispersion is planned or accidental [78,102,190,224,[234][235][236]. Furthermore, a change in the CO 2 phase gives rise to dry ice formation in the pipeline surroundings that has an indirect effect on the concentration and impurities around the faulty pipeline [190,237].…”

Section: Environmental Concerns Of Co 2 Release and Dispersionmentioning

confidence: 99%

A systematic review of key challenges of CO2 transport via pipelines

Onyebuchi

Kolios

Hanak

et al. 2018

Renewable and Sustainable Energy Reviews

149

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Transport of carbon dioxide (CO 2 ) via pipeline from the point of capture to a geologically suitable location for either sequestration or enhanced hydrocarbon recovery is a vital aspect of the carbon capture and storage (CCS) chain. This means of CO 2 transport has a number of advantages over other means of CO 2 transport, such as truck, rail, and ship. Pipelines ensure continuous transport of CO 2 from the capture point to the storage site, which is essential to transport the amount of CO 2 captured from the source facilities, such as fossil fuel power plants, operating in a continuous manner. Furthermore, using pipelines is regarded as more economical than other means of CO 2 transportThe greatest challenges of CO 2 transport via pipelines are related to integrity, flow assurance, capital and operating costs, and health, safety and environmental factors. Deployment of CCS pipeline projects is based either on point-to-point transport, in which case a specific source matches a specific storage point, or through the development of pipeline networks with a backbone CO 2 pipeline. In the latter case, the CO 2 streams, which are characterised by a varying impurity level and handled by the individual operators, are linked to the backbone CO 2 pipeline for further compression and transport. This may pose some additional challenges.This review involves a systematic evaluation of various challenges that delay the deployment of CO 2 pipeline transport and is based on an extensive survey of the literature. It is aimed at confidence-building in the technology and improving economics in the long run. Moreover, the knowledge gaps were identified, including lack of analyses on a holistic assessment of component impurities, corrosion consideration at the conceptual stage, the effect of elevation on CO 2 dense phase characteristics, permissible water levels in liquefied CO 2 , and commercial risks associated with project abandonment or cancellation resulting from high project capital and operating costs.2

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Corrosion fatigue crack growth behavior of pipeline steel under underload-type variable amplitude loading schemes

Cited by 54 publications

References 34 publications

An extended engineering critical assessment for corrosion fatigue of subsea pipeline steels

An extended engineering critical assessment for corrosion fatigue of subsea pipeline steels

Prediction of crack propagation under cyclic loading based on hydrogen diffusion

A systematic review of key challenges of CO2 transport via pipelines

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