Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"corrosion detection"”.
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Machine Learning-Driven Corrosion Detection and Classification in Pipelines
Pipeline corrosion is a critical issue in the petrochemical industry, with significant implications for both operational safety and economic efficiency. This research focuses on developing a robust system for detecting and classifying pipeline corrosion using advanced signal processing techniques …
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Corrosion detection using metal coatings on fiber optic sensors
Fiber optic sensors have been utilized as corrosion sensors by depositing metal coatings to the surface of the sensors. Three types of fiber optic sensors were investigated as candidates for corrosion detection: the extrinsic Fabry-Perot interferometer (EFPI), the absolute extrinsic Fabry-Perot …
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Resistivity Characterization and Modeling of Synthetic Based Drilling Fluids and Corrosion Detection in Steel
… quality of drilling fluid and hardening cement. Corrosion of steel will affect the durability and performance of the oil wells and other infrastructures. In this study, detection method for steel corrosion was developed for room and HPHT conditions. Electrical impedance measurements were used …
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Synthesis and Study of Stimuli-Responsive Fluorescent Polymeric Thin Films for Early Corrosion Detection by Directly Monitoring Iron Dissolution from Steel Substrates
… weathering techniques in combination with visual corrosion detection that consume substantial amounts of time and resources and often lead to inaccurate extrapolation to natural conditions. For corrosion science and engineering to evolve further, accurate and early detection methods of efficiently …
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Design of a model pipeline for testing of piezoelectric micro power generator for the Trans-Alaska Pipeline System
In order to provide a reliable corrosion detection system for the Trans-Alaska Pipeline System (TAPS), a distributed wireless self-powered sensor array is needed to monitor the entire length of the pipeline at all times. Such a sensor faces two primary challenges: a method to provide power for the …
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Theory and Application of Joint Time-Frequency Analysis On Health Monitoring of Electric Cable and Guided-Waves Detection of Structural Corrosion
… distribution is presented and applied to a corrosion detection problem in order to detect the location and extent of a corrosion damage on an aluminium plate. The experimental results illustrate that the proposed cross time-frequency analysis can detect the corrosion progression more …
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Impedance-Based Structural Health Monitoring to Detect Corrosion
Corrosion begins as moisture penetrates the protective barrier of a surface, starting an electrochemical process which over time leads to surface pitting. The combined action of mechanical stresses and corrosion induced pitting reduces structural integrity as the pits enlarge to form nucleation …
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Investigation of magnetic sensing system for in-place corrosion characterization in metals
Corrosion of the civil infrastructure causes structural failures and great financial losses. Continuous and effective monitoring of corrosion can lead to failure prevention and savings. This document describes the development of magnetic sensing schemes to characterize corrosion of metals in situ. …
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In-situ early detection of metal corrosion via "turn-on" fluorescence in "smart" epoxy coatings
… used to protect metal and metal alloys against corrosion. However protective coating fails with time, leading to corrosion of the metal substrate. When localized corrosion occurs, without being detected, it can result in disastrous failure of the metal structure. The purpose of this thesis is to …
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Development of a pulsed eddy current instrument and its application to detect deeply buried corrosion
… evaluation and testing. They allow detection of cracks, corrosion, and other inhomogeneities in conducting materials. However, due to the fact that traditionally eddy currents only use one frequency to excite the coil, limited information about the detected flaw is available. Swept …
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Ulterius Corrosion Health Monitoring (UCHM) using wireless sensor technologies.
… prone to various forms of coating failures and corrosion damage. The costly Scheduled-based- Maintenance (SBM) strategies are practiced for metal structures that result in huge financial overhead for industries. The current research work is aim to provide the solutions to anticipate the …
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Vida útil residual de estructuras de hormigón armado afectadas por corrosión
… approach to the phenomenon of reinforcement corrosion in the diferents types of reinforced concrete structures, to reach this objective we will describe the phenomenon, explaining its forms of appearance (wet or dry corrosion) and their predisposing factors (carbonation, presence of …
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Incidence and Costs of Pinhole Leak Corrosion and Corporate Cost of Capital Borrowing
… the occurrence and costs of pinhole leak corrosion as well as the household decisions for corrosion prevention and plumbing material selection. Three mail surveys of households were used to elicit the experiences with leaks as well as the optimal corrosion prevention and material choices. …
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Corrosion performance of coated steel bars in cracked and uncracked reinforced concrete beams
… the underlying carbon steel that would lead to corrosion in road-salt chloride ion environments. Despite several studies investigating the mechanical performance of TEC as compared to ECR, no study has explored the long-term corrosion resistance performance of this new type of coating. This …