Blar i SINTEF Open på forfatter "Knudsen, Ole Øystein"
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Correlations between standard accelerated tests for protective organic coatings and field performance
Knudsen, Ole Øystein; Skilbred, Anders Werner Bredvei; Løken, Andreas; Daneshian, B.; Höche, D. (Peer reviewed; Journal article, 2022)Accelerated testing is widely used in development and pre-qualification of protective organic coatings. In this work 26 coating systems have been investigated in a 2-year C5 atmospheric exposure field test, ISO 9227 salt ... -
Effect of climatic parameters on marine atmospheric corrosion: correlation analysis of on-site sensors data
Daneshian, Bahman; Höche, Daniel; Knudsen, Ole Øystein; Skilbred, Anders Werner Bredvei (Peer reviewed; Journal article, 2023)A good understanding of influencing parameters is required to predict corrosivity in marine and coastal environments. This study investigated the influences of real-time data of (i) air temperature, (ii) sensor surface ... -
Effect of laser structured micro patterns on the polyvinyl butyral/oxide/steel interface stability
Hagen, Catalina Hoem Musinoi; Knudsen, Ole Øystein; Zavieh, Amin; Pfleging, Wilhelm (Peer reviewed; Journal article, 2020)This work investigated the effect of steel substrate topography and roughness on cathodic disbonding resistance and wet adhesion of the polyvinyl butyral/oxide/steel interface. Laser structuring was employed to pattern ... -
Experiences with Thermal Spray Zinc Duplex Coatings on Road Bridges
Knudsen, Ole Øystein; Matre, Håkon; Dørum, Cato; Gagné, Martin (Peer reviewed; Journal article, 2019)Road bridges are typically designed with a 100-year lifetime, so protective coatings with very long durability are desired. Thermal spray zinc (TSZ) duplex coatings have proven to be very durable. The Norwegian Public Roads ... -
Felttest av superduplex stål med sveis
Knudsen, Ole Øystein (SINTEF Rapport;2387-4295, Research report, 2019) -
An intelligent framework for forecasting and investigating corrosion in marine conditions using time sensor data
Seghier, Mohamed El Amine Ben; Knudsen, Ole Øystein; Skilbred, Anders Werner Bredvei; Höche, Daniel (Peer reviewed; Journal article, 2023)Corrosion of marine steel structures can be regarded as a time-dependent process that might result in critical strength loss and, eventually, failures. The availability of reliable forecasting models for corrosion would ... -
Korrosjon av stål i ferskvann
Bengtsson Blucher, Daniel; Knudsen, Ole Øystein; Brakstad, Odd Gunnar; Hakvåg, Sigrid; Johnsen, Roy (SINTEF Rapport;2024:00237, Research report, 2022)Det er i dag en diskusjon gående om korrosjon og korrosjonsmonn på pæler som skal stå i Mjøsa. Mjøsa er ferskvann, og det gjelder pæler på lengder opp mot 100 meter, og ca 50 meter av pælen vil stå i ferskvannet. Det er ... -
RINVE Feasibility Study 2018
Merz, Mariann; Transeth, Aksel Andreas; Eleftheriadis, Ragnhild; Knudsen, Ole Øystein; Schulerud, Helene (SINTEF Rapport ( ISSN 1504-9795);2018:00967, Research report, 2018)This report summarizes end user needs and supplier capabilities within the "Automation and Robotics for Inspection and Maintenance" (RINVE) Network as identified in an innovation workshop held on the 10th of April 2018 at ... -
Root causes for corrosion on painted steel structures in marine environments
Knudsen, Ole Øystein; Hagen, Catalina Hoem Musinoi; Skilbred, Anders Werner Bredvei; Bruaas, Tarjei K.; Nærland, Jarand (Peer reviewed; Journal article, 2023)Our understanding of the failure mechanisms of coatings, for example, cathodic disbonding, corrosion creep, blistering, and cracking, have been developed to a high level over the past decades. However, knowing what actually ... -
Vedlikehold av bly- og kromatholdige belegg - tilstand
Knudsen, Ole Øystein (SINTEF Rapport, Research report, 2019)