Browsing NTNU Open by Author "Koren, Erik Aas"
Now showing items 1-5 of 5
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Experimental and numerical study on hydrogen-induced failure of X65 pipeline steel
Lin, Meichao; Yu, Haiyang; Wang, Dong; Díaz, Andrés; Alvaro, Antonio; Olden, Vigdis; Koren, Erik Aas; Ding, Yu; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2024)Hydrogen-induced fracture of X65 pipeline steel under in-situ electrochemical charging is investigated by using in situ slow strain-rate tensile (SSRT) test, hydrogen diffusion test, fractography analysis, and finite element ... -
Experimental comparison of gaseous and electrochemical hydrogen charging in X65 pipeline steel using the permeation technique
Koren, Erik Aas; Hagen, Catalina Hoem Musinoi; Wang, Dong; Lu, Xu; Johnsen, Roy; Yamabe, Junichiro (Peer reviewed; Journal article, 2023)Herein, hydrogen uptake and diffusivity in X65 pipeline steel were investigated using the permeation technique under different hydrogen charging conditions. Hydrogen charging was performed using hydrogen gas at different ... -
Hydrogen diffusivity in X65 pipeline steel: Desorption and permeation studies
Koren, Erik Aas; Yamabe, Junichiro; Lu, Xu; Hagen, Catalina Hoem Musinoi; Wang, Dong; Johnsen, Roy (Journal article; Peer reviewed, 2024)Hydrogen diffusivity can play a crucial role in hydrogen-assisted degradation of steels. Herein, we investigate the hydrogen diffusion behavior in two X65 pipeline steels using desorption and permeation techniques. Gas ... -
Investigating electrochemical charging conditions equivalent to hydrogen gas exposure of X65 pipeline steel
Koren, Erik Aas; Hagen, Catalina Hoem Musinoi; Wang, Dong; Lu, Xu; Johnsen, Roy (Journal article; Peer reviewed, 2023)In this study, we systematically investigate electrochemical hydrogen charging conditions equivalent to hydrogen gas pressures relevant for hydrogen transportation in X65 pipeline steel. By performing hydrogen gas permeation, ... -
The Effect of Cooling Rate and Pre-Deformation on Corrosion Behaviour of Extruded AlMgSi(Cu, Zn)-Alloys
Koren, Erik Aas (Master thesis, 2020)Aluminiumslegeringer i 6xxx-serien med høyt styrke-til-vekt-forhold kan, på grunn av vektreduksjon, bidra til å redusere utslipp av drivhusgasser i transportindustrien. Resirkulering av disse legeringene kan ytterligere ...