Blar i Institutt for maskinteknikk og produksjon på tittel
Viser treff 1829-1848 av 4036
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Hydrogen-enhanced cracking revealed by in situ micro-cantilever bending test inside environmental scanning electron microscope
(Journal article, 2017)To evaluate the hydrogen (H)-induced embrittlement in iron aluminium intermetallics, especially the one with stoichiometric composition of 50 at.% Al, a novel in situ micro-cantilever bending test was applied within an ... -
Hydrogen-enhanced fatigue crack growth in a single-edge notched tensile specimen under in-situ hydrogen charging inside an environmental scanning electron microscope
(Journal article; Peer reviewed, 2019)Fatigue crack growth (FCG) test was done on a pre-cracked single-edge notched tensile (SENT) specimen with oligocrystalline ferritic structure. Innovative in-situ hydrogen (H)- charging by plasma inside an environmental ... -
Hydrogen-enhanced grain boundary vacancy stockpiling causes transgranular to intergranular fracture transition
(Journal article; Peer reviewed, 2022)The attention to hydrogen embrittlement (HE) has been intensified recently in the light of hydrogen as a carbon-free energy carrier. Despite worldwide research, the multifaceted HE mechanism remains a matter of debate. ... -
Hydrogen-enhanced intergranular failure of sulfur-doped nickel grain boundary: In situ electrochemical micro-cantilever bending vs. DFT
(Peer reviewed; Journal article, 2020)Intergranular failure of nickel (Ni) single grain boundaries (GBs) owing to the segregation of sulfur (S), hydrogen (H), and their co-segregation has been investigated by employing micro-cantilever bending tests and density ... -
Hydrogen-induced degradation behavior of nickel alloy 625, studied using multiscale in-situ experiments
(Doctoral theses at NTNU;2023:435, Doctoral thesis, 2023)Nickel-based alloys are widely used in the oil and gas industries as safety critical components owing to its high strength and corrosion resistance properties. However, they are susceptible to hydrogen embrittlement (HE), ... -
Hydrogen-material interactions on austenitic and super duplex stainless steels
(Doctoral theses at NTNU;2022:120, Doctoral thesis, 2022)The interaction between hydrogen and structural materials has been intensively studied for many years. In this PhD thesis the effect of hydrogen on the mechanical properties of two stainless steels has been investigated ... -
Hydrological Analysis of Tekeze Hydropower System in the Current and Future Climate
(Master thesis, 2015)Climate change is expected to intensify the already high hydrological variability and energy production in various regions of the world. This research work investigates the runoff and energy production in the current and ... -
Hydrological Assessment of Water Resources in Bergen - Climate Change Impacts
(Master thesis, 2015)Bergen Waterworks is reliant on steady loads of precipitation to meet the drink- ing water demand. Accordingly, the system is vulnerable to drought events and seasonal changes in inflow. Climate change impact analysis, as ... -
Hydrological data for small hydropower plants
(Master thesis, 2014)During last years extensive development of small hydropower plants has taken place, and many of that plants are frequently located in small catchments. Mainly there is no runoff data for these small catchments, because ... -
Hydrological forecasting in catchments with glaciers
(Master thesis, 2015)The runoff forecast is crucial in Norway because the country bases most of its electricity from hydropower. The hydrological model has thus been improved for years in order to foresee the runoff in the best possible way. ... -
Hydrological modelling in east Gojjam Region, Ethiopia
(Master thesis, 2011)The Blue Nile River is known for its huge hydropower potential. Future sustainable planning and management of the river system require advanced approaches in hydrological analysis. Rainfall-runoff models are one of the ... -
Hydrological Modelling of the Ilabekken Catchment, and Flood Simulations of Ilabekken using HEC-HMS and HEC-RAS
(Master thesis, 2015)As the global climate is changing, the local climate in Trøndelag is expected to be wetter and more extreme in the future. Flooding and erosion are huge challenges in Norway, leading to severe damages each year which lead ... -
Hydrologisk dimensjonering av regnbed i kaldt klima: Risvollan, Trondheim
(Master thesis, 2012)Økt andel tette overflater i byer gir større mengder overvann som må håndteres. Regnbed er en vegetert forsenkning i terrenget hvor overvann samles og infiltreres. Et typisk regnbed er bygd opp av et filtermedium av jord ... -
Hydrologisk modellering av nedbørflom i Gaula - Bruk av nedbørestimater fra stasjonsmålinger, værradar og et griddet datasett
(Master thesis, 2016)Flomsituasjoner som oppstår på grunn av kraftig nedbør har potensiale for å forårsake stor skade, og er en utfordring med hensyn på planlegging av infrastruktur og varsling. Distribuert hydrologisk modellering på feltskala ... -
Hygrothermal Aging of Amine Epoxy: Reversible Static and Fatigue Properties
(Journal article; Peer reviewed, 2018)Fiber-reinforced polymers (FRP) are widely used in structural applications. Long-term properties of such materials exposed to water are of high concern and interest, especially for subsea and offshore applications. The ... -
Høyproduktiv fresing av nikkelbaselegeringer
(Master thesis, 2010)This Master thesis consists of a literature review on surface integrity after milling with ceramic tools in nickel‐based super alloys. Examples of turning and milling with carbide tools have also been included, due to ... -
Ice conditions in Norwegian rivers regulated for hydropower: An assessment in the current and future climate
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:367, Doctoral thesis, 2014)This PhD is focused on the river ice conditions in regulated rivers for the current and future climate. The studies are based on a series of modelling applications, field data collections and data analysis. First a process ... -
Ice Management with System Theoretic Process Analysis (STPA) for Marine Operations in Arctic Environments
(Master thesis, 2019)Det siste hundreåret har Arktis vore forlokkande for modige forskarar og eventyrarar, men utilgjengeleg for dei fleste. Klimaendringar og framsteg i teknologi endrar dette raskt, noko som gjer den arktiske regionen meir ... -
Icing on overhead power lines
(Master thesis, 2022)Ising på kraftlinjer kan skape problemer og risikoen er økende med tanke på klimaendringene. Å tilby effektive metoder for avising vil være essensielt for å unngå strømbrudd. Dagens metoder er ikke uten risiko for strømbrudd. ... -
ICT-supported knowledge representation for Development of Routines in industry
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:36, Doctoral thesis, 2007)The ability to develop operating routines through the support of information and communication technology (ICT) is being valued by the business community as a source of competitive advantage in the information economy; and ...