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We focused on the compatibility between nanocontainers and coating formulations. The results embody a new generation of coatings with sensing ability, and have implications for self-healing and anti-fouling coatings as well.
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A new CP monitoring approach to quantify the health of the CP system in real-time with spatial resolution. Spatial resolution is achieved by an integrated sensor network distributed across a Subsea Production System.
A sacrificial sensor has been designed to detect the occurrence and rate of atmospheric corrosion and stress corrosion cracking. Constructed using additive manufacturing and can be customized for use with small size wires or ribbons of any metallic material as a sensor electrode.
The purpose of this document is to provide instructions on the use of electrochemical sensors for monitoring atmospheric corrosion. These sensors are used to measure thin film electrolyte conductance, corrosion current or coating condition over long periods. This method permits the instantaneous evaluation of corrosion current that can be related to specific environmental conditions in real time. The instantaneous corrosion current measurements are not accessible using electrical resistance sensors or mass loss techniques. The technology described in this document complements other standard techniques for assessing atmospheric corrosion such as mass loss coupons, electrical resistance sensors or coated test panels (see ISO 8407 and ISO 4628-8). These continuous records of material condition can be useful for studying atmospheric corrosion, evaluating materials or managing assets.
The use of corrosion sensors for remote monitoring of infrastructure assets has become more frequent in recent years. Corrosion sensors utilizing the electrical resistance (ER) method have been developed, in which the resistance of a test sample is used to infer thickness change and hence corrosion rate. ER corrosion sensors have been deployed on various structures including marine wharves, bridges and coal processing facilities. On some marine wharf structures and some marine coastal bridges the performance of jacketed petrolatum-based tape wrapping systems on steel piles has been assessed including on steel piles suffering from accelerated low water corrosion (ALWC) and microbiologically influenced corrosion (MIC). The paper provides some relevant discussion of the corrosion and its mechanisms prevalent to marine wharf and bridge steel piles in Eastern Australia, Southern Australia and Western Australia as well as the pile wrapping/jacketing systems installed and being performance monitored in-situ. Details are provided of the corrosion sensors. An assessment of the results obtained to-date for up to 3 years of in-situ exposure has been made.