Blar i Institutt for materialteknologi på tittel
Viser treff 1524-1543 av 2553
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Modeling of Tapping Processes in Submerged Arc Furnaces
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:149, Doctoral thesis, 2011) -
Modeling over-ageing in Al-Mg-Si alloys by a multi-phase CALPHAD-coupled Kampmann-Wagner Numerical model
(Journal article, 2017)The formation of the equilibrium precipitation phase during ageing treatment of Al-Mg-Si alloys is preceded by a series of metastable phases. Given longer ageing time, higher ageing temperature or elevated temperature ... -
Modeling strain-path changes in aluminum and steel
(Journal article, 2017)The present paper evaluates two phenomenological plasticity models which account for the influence of strain-path change (SPC) on the stress-strain behavior. The HAH model (Barlat et al., 2014) is modified to capture SPC ... -
Modeling the Effect of Excess Vacancies on Precipitation and Mechanical Properties of Al–Mg–Si Alloys
(Peer reviewed; Journal article, 2023)A model for vacancy annihilation during aging has been combined with a precipitation model for coupled nucleation, growth, and coarsening in AA 6xxx series aluminum alloys. The simulation results were compared with ... -
Modeling Viscosity of High Titania Slag
(Peer reviewed; Journal article, 2020)TiO2-FeO-Ti2O3 slag system is the dominant system for industrial high-titania slag production. In the present work, viscosities of TiO2-FeO and TiO2-FeO-Ti2O3 systems were experimentally determined using the concentric ... -
Modelling and Analysis of vertical bifacial agrivoltaic test system at Skjetlein high school, Norway
(Master thesis, 2022)The agriculture sector is facing three significant challenges: i) food production must double by 2030 in order to feed an ever-growing population, ii) decrease in the amount of arable lands and iii) accelerating climate ... -
Modelling and experimental validation of microstructure evolution during the cooling stage of homogenization heat treatment of Al-Mg-Si alloys
(Journal article; Peer reviewed, 2018)A CALPHAD-coupled multi-component multi-phase Kampmann–Wagner Numerical modelling framework has been adapted and coupled with a homogenization model to predict the competitive nucleation and growth of multi-sized ... -
Modelling capacity fade in silicon-graphite composite electrodes for lithium-ion batteries
(Peer reviewed; Journal article, 2021)Silicon-based composite electrodes in lithium ion batteries attract increasing attention because of their high theoretical capacity. Here, numerical simulations are used to better understand the interplay between electrochemical ... -
Modelling Gas Flow in Furnaces for Si Production
(Master thesis, 2022)Lavere energiforbruk og høyere silisium utbytte er viktig for silisium produksjonen. For å oppnå dette er det viktig med stabile ovnsprosesser. Motstand mot gass-strømning i råmaterialet fører til et økt trykk i ovnen. Om ... -
Modelling Grain Growth with the Phase Field Method
(Master thesis, 2019)Kornvekst i et metall innebærer at kornene, volumer med atomer med samme orientering av krystallstrukturen, vokser og absorberer mindre korn, hvilket resulterer i en mer grovkornet struktur. Å forstå denne prosessen er ... -
Modelling microstructure and properties during annealing of coldrolled Al-Mn-Fe-Si-alloys with different microchemistries
(Journal article, 2014)The physical basis and a mathematical formulation of a softening model nicknamed Alsoft, accounting for the combined effect of recovery and recrystallization during annealing of heavily deformed aluminium alloys have been ... -
Modelling microstructure evolution during casting, homogenization and ageing heat treatment of Al-Mg-Si-Cu-Fe-Mn alloys
(Journal article; Peer reviewed, 2018)Understanding microstructural evolution occupies one of the central positions in the discipline of materials science and engineering. In this review we summarize the recent research activities on modelling microstructure ... -
Modelling of additive manufacturability of nickel-based superalloys for laser powder bed fusion
(Peer reviewed; Journal article, 2022)The additive manufacturability of nickel-based superalloys for laser powder bed fusion (LPBF) technologies is studied by considering the in-process cracking mechanisms. The additive manufacturability of nickel-based ... -
Modelling of Dynamic Arc Behaviour in a Plasma Reactor
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:38, Doctoral thesis, 2007) -
Modelling of gas-solid reactions - Usage of industrial off-gas for pre-reduction of manganese ores
(Master thesis, 2018)The traditional way of making manganese alloys are by reduction of different manganese oxides, iron oxides and silicon dioxide in a standalone electric furnace. That being said, manganese alloy producing companies may ... -
Modelling of strain-path transients in commercially pure aluminium
(Journal article, 2017)In the current work, the recently proposed homogeneous anisotropic hardening (HAH) model, featuring a distorted yield surface, is applied to commercially pure aluminium. A dislocation-based hardening rule is incorporated ... -
Modelling of the vertical deflection of ferroelectric bending tongues loaded at their free end
(Peer reviewed; Journal article, 2019)In this work, a model to describe the vertical deflection of ferroelectric bending tongues with a load at their free end is proposed. The model is based on the ferroelectric switching criterion developed by Hwang et al. ... -
Modelling the Age-Hardening Precipitation by a Revised Langer and Schwartz Approach with Log-Normal Size Distribution
(Peer reviewed; Journal article, 2020)A new numerical modelling approach integrating the Langer and Schwartz approach and log-normal particle size distribution has been developed to depict the precipitation kinetics of age-hardening precipitates in Al alloys. ... -
Modelling the evolution in microchemistry and its effects on the softening behavior of cold rolled AlFeMnSi-alloys during annealing
(Journal article, 2013)A dedicated diffusion controlled precipitation model for AlMnFeSi-alloys, based on classical nucleation and growth theory, has been implemented and coupled to a phenomenological softening model accounting for the combined ... -
Modelling the Spatial Evolution of Excess Vacancies and its Influence on Age Hardening Behaviors in Multicomponent Aluminium Alloys
(Peer reviewed; Journal article, 2023)Excess vacancies play crucial roles in the precipitation of age-hardening precipitates in aluminium alloys, but their spatial evolution across grains during heat treatments is less known. In this work, a numerical model ...