Browsing NTNU Open by Author "Nisancioglu, Kemal"
Now showing items 21-31 of 31
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Influence of calcareous deposits on hydrogen uptake in 13% Cr super martensitic stainless steel under cathodic protection
Smirnova, Anna; Johnsen, Roy; Nisancioglu, Kemal (Chapter, 2010) -
Initiation and Propagation of Intergranular Corrosion on AA6005 Aluminium Alloy
Kumari, Shilpa (Doctoral theses at NTNU;2018:391, Doctoral thesis, 2018)The increasing use of 6xxx series aluminium alloys (AlMgSi) in automotive applications is due to its high strength to weight ratio (enabling substantially reduced fuel consumption and CO2 emissions than for heavier materials ... -
Interface resolved simulations of continuum scale electrochemical hydrogen evolution
Vachaparambil, Kurian J. (Doctoral theses at NTNU;2020:363, Doctoral thesis, 2020)An important aspect of improving the efficiency of water electrolysis is to remove the electrochemically generated hydrogen and oxygen bubbles. The evolution of these gases, which are associated with increased electrical ... -
Mechanical Properties and Corrosion Behaviour of Extruded and Welded AA6082
Rostad, Kjetil Steen (Master thesis, 2014)Welding and corrosion will play a key role in the further increased use of aluminium alloys in industrial applications. This is especially true as the oil and gas industry is moving into the arctic region in search for new ... -
Modeling of Hydrogen Diffusion in 25% Cr Super Duplex Stainless Steel
Jemblie, Lise (Master thesis, 2012)Over the last years, several failures in duplex and super duplex stainless steel structures in subsea applications are reported to be a result of hydrogen induced stress cracking. One main source of hydrogen is found to ... -
Pitting and Crevice Corrosion of Stainless Steel under Offshore Conditions
Wika, Sandra Finsås (Master thesis, 2012)AISI 316/316L has traditionally been used in offshore topside environments when operating under low temperatures. It has been observed that the AISI 316/316L piping suffer from severe attacks of pitting and crevice corrosion ... -
Progress in Understanding Initiation of Intergranular Corrosion on AA6005 Aluminum Alloy with Low Copper Content
Kumari, Shilpa; Wenner, Sigurd; Walmsley, John; Lunder, Otto; Nisancioglu, Kemal (Journal article; Peer reviewed, 2019)As part of an extensive research program to study recent, unexpected intergranular corrosion (IGC) on 6xxx series aluminum alloys (AlMgSi), this paper investigates the mechanism of initiation and early propagation of IGC ... -
The Effect of Mn and Homogenisation Procedure on Mechanical Properties and Grain Structure in Extruded AA6082
Bru, Magnus (Master thesis, 2014)Extruded profiles of AlMgSi-alloys are widely used in various industries such as the automotive industry, aerospace and in the oil and gas industry. To tailor the alloys for specific needs and applications, more information ... -
The Influence of Alternating Current on the Polarization Behavior of Stainless Steels
Hagen, Catalina H. Musinoi (Master thesis, 2013)In later years direct electrical heating (DEH) based on the use of alternating current (AC) has replaced traditional chemical based methods for hydrate formation control in subsea flow lines. The problem with the AC-method ... -
Thermally Sprayed Aluminum (TSA) with Cathodic Protection as Corrosion Protection for Steel in Natural Seawater: Characterization of Properties on TSA and Calcareous Deposit
Egtvedt, Solveig (Master thesis, 2011)Cathodic protection is an effective corrosion protection for structures submerged in seawater. In addition to applying the current need to lower the metal below the protection potential, a resulting increase in interfacial ... -
Zinc-rich coatings for improved corrosion resistance of extruded aluminium heat-exchange tubing in acidified chloride solution
Stepanova, Mariia (Doctoral theses at NTNU;2017:294, Doctoral thesis, 2017)Thin walled heat exchanger Al alloy tubes, with solid-solution Zn-rich surface, are widely used by the automotive industry and are considered by the heat, ventilation, air-conditioning and refrigeration market. This work ...