Browsing Institutt for maskinteknikk og produksjon by Title
Now showing items 1267-1286 of 4071
-
Effect of nickel on hydrogen permeation in ferritic/ pearlitic low alloy steels
(Journal article; Peer reviewed, 2018)Nickel offers several beneficial effects as an alloying element to low alloy steels. However, it is, in the oil and gas industry, limited by part 2 of the ISO 15156 standard to a maximum of 1 wt% due to sulfide stress ... -
Effect of Nickel on the Hydrogen Stress Cracking Resistance of Ferritic/Pearlitic Low Alloy Steels
(Journal article; Peer reviewed, 2018)Nickel additions to low alloy steels improve mechanical and technological properties. However, Part 2 of ISO Standard 15156 limits the nickel content to a maximum of 1 wt% in oil and gas environments containing H2S because ... -
The effect of non-uniform pitch length and spiraling pathway on the mechanical properties of coiled carbon nanotubes
(Peer reviewed; Journal article, 2023)Coiled carbon nanotubes (CCNTs) exhibit exceptional mechanical, electrical, and thermal properties, making them suitable for diverse applications such as nanoelectromechanical devices. Here, classic molecular dynamics (MD) ... -
Effect of Plastic Deformation and Microstructure on Hydrogen Diffusion in Steel
(Master thesis, 2015)This work has been part of the ROP (Repair Contingency of Pipelines) project executed by SINTEF, where Vigdis Olden is project lead. The main content of this report is the execution of hydrogen permeation tests on Fe3wt.%Si ... -
The effect of plastic deformation on hydrogen diffusion in nickel Alloy 625
(Peer reviewed; Journal article, 2022)Recently, several hydrogen-assisted failures have been reported on different nickel alloys used in the subsea oil and gas industries. It is thus essential to correlate hydrogen uptake and diffusion behavior with stress ... -
Effect of Processing Parameters on the Relative Density of AlSi10Mg Processed by Laser Powder Bed Fusion
(Chapter, 2019)In order for a material processed by laser powder bed fusion (LPBF) to achieve the desired mechanical properties, the relative density of the material should be as high as possible. In this study, the effect of various ... -
Effect of Processing Parameters on the Relative Density of AlSi10Mg Processed by Laser Powder Bed Fusion
(Journal article, 2019)In order for a material processed by laser powder bed fusion (LPBF) to achieve the desired mechanical properties, the relative density of the material should be as high as possible. In this study, the effect of various ... -
Effect of production/process parameters on corrosion properties of AM AISI 316L
(Master thesis, 2021)The evolution of new techniques for processing materials is being of interest for the current industry. Some scientific researchers have focused their studies on knowing more about them, and the results show a promising ... -
Effect of Residual Stresses on Fracture Resistance of Arctic Structures
(Master thesis, 2013)In integrity assessments, residual stresses have a significant effect on the crack driving force. In fracture assessments according to BS 7910 residual stresses are treated conservatively, and is often assumed to be equal ... -
Effect of selective laser melting process parameters on microstructural and mechanical properties of TiC–NiCr cermet
(Peer reviewed; Journal article, 2020)TiC–NiCr cermet was in situ synthesized through selective laser melting (SLM) process using a Ti, C, and Ni80Cr20 powder mixture. Feedstock powder was prepared using high energy milling and mixing for a total time of 15 ... -
Effect of Solidification Time on Microstructural, Mechanical and Fatigue Properties of Solution Strengthened Ferritic Ductile Iron
(Journal article; Peer reviewed, 2019)Microstructural, mechanical, and fatigue properties of solution strengthened ferritic ductile iron have been evaluated as functions of different solidification times. Three types of cast samples with increasing thickness ... -
Effect of Stretching on Springback in Rotary Stretch Bending of Aluminium Alloy Profiles
(Journal article, 2021)Stretch bending is widely used for manufacturing profile-type parts. However, one of the challenges faced by the bending-type forming processes is springback, which significantly reduces the dimensional accuracy of formed ... -
Effect of structural heterogeneity of 17Mn1Si steel on the temperature dependence of impact deformation and fracture
(Journal article; Peer reviewed, 2017)The paper deals with a theoretical and experimental study of the relationship between the microstructural parameters, mechanical properties, and impact deformation and fracture of steels using the example of 17Mn1Si pipe ... -
The effect of surface roughness and topography on the organic coating/steel interface stability
(Doctoral theses at NTNU;2020:304, Doctoral thesis, 2020)The study in this thesis, focused on the effect of surface roughness and topography on the organic coating/steel interface stability in humid air and corrosive conditions. A strong correlation between roughness, Rz, and ... -
The effect of surface treatment and orientation on fatigue crack growth rate and residual stress distribution of wire arc additively manufactured low carbon steel components
(Peer reviewed; Journal article, 2023)The directed energy deposition (DED) processes, such as laser metal deposition or Wire Arc Additive Manufacturing (WAAM), are gradually becoming the preferred method for fabrication of large-scale components using metal ... -
Effect of temperature-force factors and concentrator shape on impact fracture mechanisms of 17mn1si steel
(Journal article; Peer reviewed, 2017)The influence of the notch shape on the impact fracture of 17Mn1Si steel is investigated at different temperatures with the focus placed on the low-temperature behavior. An approach towards fracture characterization has ... -
Effect of the free surface on the fatigue crack front curvature at high stress asymmetry
(Journal article, 2019)The purpose of this paper is to investigate the effect of the vertex singularity on the fatigue crack front behaviour. Single edge notch bend specimens of steel EA4T and aluminium alloy 7075 of various thicknesses are ... -
Effect of the stress-strain state on the path of quasi-cleavage hydrogen-assisted cracking in low-carbon steel
(Peer reviewed; Journal article, 2021)Сonflicting data on the effect of the stress-strain state on the shape and path of quasi-cleavage cracks in hydrogen-embrittled steels and iron have been reported in the literature recently. However, this issue is important ... -
Effect of Transfer Film on Tribological Properties of Anti-Friction PEI- and PI-Based Composites at Elevated Temperatures
(Peer reviewed; Journal article, 2022)The structure, mechanical and tribological properties of the PEI- and PI-based composites reinforced with Chopped Carbon Fibers (CCF) and loaded with commercially available micron-sized solid lubricant fillers of various ... -
Effect of tungsten on the precipitation kinetics and localized corrosion resistance of super duplex stainless steels
(Journal article; Peer reviewed, 2018)Although extensively used in oil and gas production due to their excellent combination of mechanical properties and corrosion resistance, 25Cr super duplex stainless steels (SDSSs) are susceptible to the precipitation of ...