...Alvan H. Wordu; Kong Fah Tee; Mahmood Shafiee Corrosion damage is reported to be one of the leading causes of steel pipeline failure causing significant financial losses to operators and damage to the surrounding environment. As part of a rising confrontation to pipeline integrity management...

... X42 and X100, are selected to compare the different corrosion assessment methodologies. Corrosion defects of 75%, 50%, and 25% thickness reduction are evaluated. None of the experimental equations take into account the strain-hardening behavior of the pipe material, and therefore, they cannot properly...

... manuscript received January 19, 2014; published online April 3, 2014. Assoc. Editor: Jianmin Qu. 14 12 2012 19 01 2014 A hierarchical Bayesian growth model is presented in this paper to characterize and predict the growth of individual metal-loss corrosion defects on pipelines. The depth...

...; therefore, they have to be safe. But unfortunately, utilization of old pipelines in operation increases probability of occurrence. The most important reasons of making these occurrences are the internal and external corrosions that are very effective in damaging gas pipelines, hence safety decreases. So...

... following subsequent tube failures of the reheater pendent region of a boiler unit. Interaction event of significant internal scale formation causing the higher metal temperature and external scale exfoliation as a result of high-temperature corrosion is identified to cause the failure of the reheater...

...Mainul Hasan; Faisal Khan; Shawn Kenny Failure probability of oil and gas pipelines due to external corrosion defects can be estimated using corrosion growth model and the evaluation of remaining strength. Codes/standards have been developed for the assessment of the remaining strength of corroded...

... for the example pipeline were obtained using Monte-Carlo simulation. The life-cycle cost included the cost of failure due to equipment impact and external corrosion, and the cost of periodic maintenance actions for external corrosion. The cost of failure included both the cost of fatality and injury as well...

...Kunio Hasegawa; Toshiyuki Meshii; Douglas A. Scarth One of the more common modes of degradation in power plant piping has been wall thinning due to erosion-corrosion or flow-accelerated corrosion. Extensive work has been performed to understand flow-accelerated corrosion mechanisms and develop...

...R. Adibi-Asl; R. Seshadri Structural integrity of an in-service component containing damage such as corrosion and thermal hot spot has to be evaluated regularly so as to certify the acceptance and safety of continued service of the component. In this paper, limit load solutions of a damaged conical...

... a detrimental effect and play an important role in an industrial environment. Crack initiation and propagation in static or fatigue loading, or in stress corrosion can be greatly accelerated by welding tensile stresses. Practically, however, it is often very difficult to characterize the residual stress state...

... by an infinitely long groove or a corrosion defect with irregular geometry, then other schemes have to be used ( 8 10 ). By increasing the length of a finite groove, the burst pressure asymptotically approaches the failure pressure of a pipe with an infinitely long groove. Hopkins and Jones ( 11 ) experimentally...

... 10 2009 30 03 2010 30 03 2010 corrosion finite element analysis heat exchangers pipes corrugated tube finite element analysis axial stiffness Due to the heat transfer enhancement effects, corrugated tubes are more and more widely used to construct the shell...

...Z. Abdulaliyev; S. Ataoglu; O. Bulut; E. S. Kayali Internal surfaces of pressure vessels used in many industrial sectors are subjected to corrosive effects leading to cavities. In this study, corrosive cavities on investigated pressure vessels are classified according to their shapes and dimensions...

...Harold M. Crockett; Jeffrey S. Horowitz Various mechanisms degrade components and power piping in nuclear power plants. The mechanism with the greatest consequence has been flow-accelerated corrosion (FAC). FAC has caused ruptures and leaks and has led to numerous piping replacements. United States...

...P. Tang; J. Yang; J. Y. Zheng; C. K. Lam; I. Wong; S. Z. He Erosion-corrosion failures frequently found in piping systems can lead to the leakage of pipes, or even damage of the whole system. Erosion-corrosion is a form of material degradation that involves electrochemical corrosion and mechanical...

...P. Tantichattanont; S. M. R. Adluri; R. Seshadri Thermal hot spots and corrosion damage are typical of damages occurring in pressure vessels and piping. Structural integrity of such components needs to be evaluated periodically to determine “fitness-for-service” (FFS) of the components...

...Raul B. Rebak Artificially creviced Alloy 22 (N06022) may be susceptible to crevice corrosion in the presence of high-chloride aqueous solutions, especially at higher temperatures and at anodic potentials. The presence of oxyanions in the electrolyte, particularly nitrate, inhibits the nucleation...

...Xinjian Duan; Michael J. Kozluk; Sandra Pagan; Brian Mills Aging steam generator tubes have been experiencing a variety of degradations such as pitting, fretting wear, erosion-corrosion, thinning, cracking, and denting. To assist with steam generator life cycle management, some defect-specific flaw...

.... As a consequence of this, the model can be more adequately interpreted and easier to apply under practical conditions. The new model and the finite element method are applied to predict failure pressures for pipelines with corrosion defects of elliptic and irregular geometries, and the predictions are similar...

...Jianghong Xue This paper deals with the buckling phenomenon of undersea corroded pipelines. The corrosion degree of the pipelines is characterized by two parameters: the angular extension and the corrosion depth. Previous work has shown that symmetric and antisymmetric buckling modes occur...