Blar i NTNU Open på forfatter "Wilson, Håvard"
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Convection induced by illumination-based metal surface heating increases corrosion potential, corrosion rates
Wilson, Håvard; Erbe, Andreas (Journal article; Peer reviewed, 2019)Illumination may increase corrosion rates of important engineering metals. In addition to the well-known photoelectrochemical mechanism which increases dissolution via generation of electron-hole pairs, induced convection ... -
Hole annihilation vs. induced convection: Breakdown of different contributions to the photocorrosion mechanism of oxide-covered iron
Wilson, Håvard; Sunde, Svein; Erbe, Andreas (Peer reviewed; Journal article, 2021)The mechanism behind corrosion rate increase of anodised iron under illumination has been studied by comparing photocurrents with corrosion currents from polarisation curves under controlled convection. Under illumination ... -
Photocorrosion of metals - A study on the corrosion process and the interaction between oxide-covered metals and light
Wilson, Håvard (Doctoral theses at NTNU;2021:228, Doctoral thesis, 2021)This work investigates how light may affect corrosion of metals. The purpose of this thesis is to answer the question: How does light influence the corrosion process? And more specifically, how corrosion of important ... -
Photocorrosion of n- and p-Type Semiconducting Oxide-Covered Metals: Case Studies of Anodized Titanium and Copper
Wilson, Håvard; Van Rooij, Arnoul; Jenewein, Ken; Knöppel, Julius; Kormányos, Attila; Cherevko, Serhiy; Sunde, Svein; Erbe, Andreas (Peer reviewed; Journal article, 2022)Illumination affects corrosion of oxide-covered metals via photoinitiated dissolution processes. Herein, anodized titanium with n-type semiconducting anatase TiO2 and anodized copper with p-type semiconducting cuprite Cu2O ... -
Properties of TSA in natural seawater at ambient and elevated temperature
Wilson, Håvard; Johnsen, Roy; Torres Rodriguez, Cristian; Hesjevik, Sven Morten (Journal article; Peer reviewed, 2019)Electrochemical properties of thermal sprayed aluminium (TSA) coating were investigated in natural seawater at elevated temperatures with and without cathodic protection (CP). TSA has a low current density requirement when ... -
The effect of bird droppings on the corrosion of structural materials used in offshore applications
Forr, Fredrik Oftedal (Master thesis, 2022)Den nåværende trenden i olje- og gassindustrien er at flere aktører ønsker å bygge automatiserte plattformer som er enten normalt ubemannet, eller ubemannet. Dette gir økte krav for design, som må kunne yte for lange ... -
Thermal Sprayed Aluminium for Subsea Heat Exchanger Surfaces: Effect of Temperature on Protection Current Requirement and Calcareous Development
Wilson, Håvard (Master thesis, 2014)More and more equipment in the Oil and Gas Industry are being placed Subsea. Thisincludes subsea coolers with high internal temperatures. With high temperatures comewith challenges within material selection and corrosion. ...