Browsing Institutt for maskinteknikk og produksjon by Title
Now showing items 1225-1244 of 3992
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Effect of hydrogen on deformation behavior of Alloy 725 revealed by in-situ bi-crystalline micropillar compression test
(Peer reviewed; Journal article, 2021)Nickel-based Alloy 725 bi-crystalline micropillars with different types of grain boundaries (GBs) were compressed in hydrogen-free and in-situ hydrogen-charged conditions to investigate the hydrogen effect on the deformation ... -
Effect of hydrogen on dislocation nucleation in alloy 718
(Journal article; Peer reviewed, 2017)In situ electrochemical nanoindentation has been used to study the effect of hydrogen on the nanomechanical response of Alloy 718. Observations show that hardness increase as a result of hydrogen charging. Also, the hydrogen ... -
Effect of Hydrogen on Fatigue Crack Growth in Modern Pipe Steels for Hydrogen Transport
(Master thesis, 2021)Det eksisterende olje- og gass-nettverket på norsk sokkel representerer i lys av den pågående energirevolusjonen fremtidige transportruter for hydrogen. Hydrogen er kjent for å svekke de mekaniske egenskapene til stål og ... -
Effect of hydrogen on nanomechanical properties in Fe-22Mn-0.6C TWIP steel revealed by in-situ electrochemical nanoindentation
(Journal article; Peer reviewed, 2018)In-situ electrochemical nanoindentation was applied to study the effect of hydrogen on the mechanical properties of Fe-22Mn-0.6C TWIP steel at nanoscale. Distinctive behaviors in three defined grain orientations: (001), ... -
The effect of hydrogen on the crack initiation site of TRIP-assisted steels during in-situ hydrogen plasma micro-tensile testing: Leading to an improved ductility?
(Peer reviewed; Journal article, 2020)The hydrogen induced damage and crack initiation in transformation induced plasticity (TRIP) steel is considered in the present work by micro tensile testing and subsequent microstructural assessment. Hydrogen characteristics ... -
Effect of hydrogen on the embrittlement susceptibility of Fe-22Mn-0.6C TWIP steel revealed by in-situ tensile tests
(Peer reviewed; Journal article, 2020)The hydrogen embrittlement (HE) behavior on a Fe–22Mn-0.6C twinning-induced plasticity (TWIP) steel was investigated by tensile tests with in-situ scanning electron microscope observation combined with electron backscatter ... -
Effect of hydrogen-induced surface steps on the nanomechanical behavior of a CoCrFeMnNi high-entropy alloy revealed by in-situ electrochemical nanoindentation
(Peer reviewed; Journal article, 2019)The effect of hydrogen on the nanomechanical properties of CoCrFeMnNi high-entropy alloy was investigated by in-situ electrochemical nanoindentation testing. The changes in surface morphology, elastic modulus, pop-in load, ... -
Effect of Implementing Technology on the Human Factors Aspects in Order Picking Systems
(Master thesis, 2023)Ordreplukking er en viktig del av lagerdrift. Den utgjør om lag 55 % av de totale driftskostnadene. De fleste varehus sysselsetter mennesker for ordreplukkingsprosessen, men det har vært en økning i teknologiske løsninger ... -
Effect of laser structured micro patterns on the polyvinyl butyral/oxide/steel interface stability
(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 ... -
Effect of Low Temperature Tensile Properties on Crack Driving Force for Arctic Applications
(Master thesis, 2016)Many petroleum companies expand their activities further north towards the Arctic region, resulting in design temperatures down to -60 °C, which is much lower than what is usual for most current petroleum installations. ... -
Effect of low temperature tensile properties on crack driving force for Arctic applications
(Journal article; Peer reviewed, 2017)Many petroleum companies expand their activities further north towards the Arctic region, resulting in design temperatures down to −60 °C, which is much lower than what is usual for most current petroleum installations. ... -
Effect of Lubricant Viscosity on the Friction Behavior of the mm-scale Specimen
(Chapter, 2021)The size of moving parts in MEMS (micro-electro-mechanical-systems) is often in the mm-scale or smaller. Affected by the size effect, the friction in the mm-scale is different from the friction larger systems. In this ... -
Effect of Machine Sharing in Medical Laboratories
(Chapter, 2023)While medical research continuously develops new and innovative analysis methods, investing in new competence and resources is costly and challenging with the rigid budgeting of healthcare systems. This, combined with an ... -
Effect of manufacturing parameters on tensile properties of FDM printed specimens
(Peer reviewed; Journal article, 2020)Nowadays, one of the most studied technologies for obtaining different parts is Additive Manufacturing (AM). Whether it is about plastic or metal materials, AM is used because very complex parts can be obtained, without ... -
EFFECT OF MICROSTRUCTURE AND SURFACE FINISH ON LOCALIZED CORROSION PERFORMANCE OF SUPER DUPLEX STAINLESS STEEL IN SEAWATER
(Master thesis, 2014)Corrosion resistant alloys (CRAs) used in subsea pressure-retaining components must be compatible with production fluids and resistant to pitting and crevice corrosion in seawater. Whereas materials selection in production ... -
Effect of microstructure on the corrosion resistance of duplex stainless steels: Materials performance maps
(Journal article; Peer reviewed, 2017)Although super duplex stainless steels (25Cr SDSS) are extensively used in oil and gas production due to their excellent combination of mechanical properties and corrosion resistance they are susceptible to the precipitation ... -
Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
(Journal article; Peer reviewed, 2018)This paper presents an experimental investigation on fracture behavior of epoxy resin-carbon fibers composites interleaved with both neat polyacrylonitrile (PAN) nanofibers and Al2O3-PAN nanofibers. In particular, the paper ... -
Effect of nickel in solid solution on the hydrogen embrittlement resistance of low alloy steels
(Doctoral theses at NTNU;2018:231, Doctoral thesis, 2018)The ever-increasing demand and consumption of energy in the world is depleting conventional oil and gas reserves. Nickel alloying improves mechanical and technological properties of low alloy steels (LAS), but is limited ... -
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 ...