Blar i Institutt for fysikk på tittel
Viser treff 1819-1838 av 2698
-
Precipitate statistics in an Al-Mg-Si-Cu alloy from scanning precession electron diffraction data
(Journal article; Peer reviewed, 2017)The key microstructural feature providing strength to age-hardenable Al alloys is nanoscale precipitates. Alloy development requires a reliable statistical assessment of these precipitates, in order to link the microstructure ... -
Precipitate Structure Changes during Overaging in an Al-Mg-Si Alloy
(Master thesis, 2012)Starting from a super saturated solid solution and two different conditions withβ′′ precipitates (T6) an Al-Mg-Si alloy was heat treated at 200◦C and investigated byhardness measurements. One of the T6 conditions was ... -
Precipitate/matrix incompatibilities related to the {111}Al Ω plates in an Al-Cu-Mg-Ag alloy
(Journal article; Peer reviewed, 2021)The atomic structure of Ω plates forming on {111}Al planes in an Al-Cu-Mg-Ag alloy has been investigated by Z-contrast atomic-resolution scanning transmission electron microscopy imaging and ab initio density functional ... -
Precipitates in aluminium alloys
(Journal article; Peer reviewed, 2018)Precipitation strengthening is a highly complex phenomenon on the nanoscale, responsible for providing strength in Al-Cu, Al-Mg-Cu, Al-Mg-Zn and Al-Mg-Si alloys. Advances in methodology, especially high-angle annular ... -
Precipitation behavior in an Al-Cu-Mg-Si alloy during ageing
(Peer reviewed; Journal article, 2019)The precipitation behavior and aging response of an Al-4.9Cu-0.74Mg-0.51Si-0.48Mn-0.1Cr-0.08Ti-0.02Fe (wt. %) alloy was examined in detail after aging at 170 °C with different dwell times up to 96 h. Deformation by ... -
Precipitation behavior in an Al-Cu-Mg-Si alloy during ageing
(Peer reviewed; Journal article, 2019)The precipitation behavior and aging response of an Al-4.9Cu-0.74Mg-0.51Si-0.48Mn-0.1Cr-0.08Ti-0.02Fe (wt. %) alloy was examined in detail after aging at 170 °C with different dwell times up to 96 h. Deformation by ... -
Precipitation behavior of Al-Si-Cu-Mg(-Fe) alloys by a deformation-semisolid extrusion process
(Journal article; Peer reviewed, 2021) -
Precipitation behavior of Al-Si-Cu-Mg(-Fe) alloys by a deformation-semisolid extrusion process
(Journal article; Peer reviewed, 2021)Al-4.5Si-1Cu-0.3Mg(-1Fe) (wt%) alloys fabricated by a deformation-semisolid extrusion (D-SSE) process have been investigated by transmission electron microscopy, down to the atomic level. T5 and T6 heat treatments were ... -
Precipitation in a mixed Al-Cu-Mg/Al-Zn-Mg alloy system
(Journal article, 2016)The precipitation-hardened alloy systems Al–Cu–Mg (2xxx) and Al–Zn–Mg (7xxx) were compositionally combined from a base alloy containing 2% Cu and 1% Mg, added 1–4% Zn (weight fractions). Precipitates in these alloys were ... -
Precipitation in an Al-Mg-Cu alloy and the effect of a low amount of Ag
(Journal article, 2016)Two high-purity aluminium alloys based on composition Al–3.0Mg–1.0Cu (wt%), one with added 0.4 wt% Ag, were compared up to 11 days ageing at 443 K by means of transmission electron microscopy and hardness measurements. The ... -
Precipitation in an extruded AA7003 aluminium alloy: Observations of 6xxx-type hardening phases
(Journal article; Peer reviewed, 2019)Precipitation behaviour in an industrially extruded AA7003 alloy has been studied using Transmission Electron Microscopy (TEM) together with Differential Scanning Calorimetry (DSC). Air Cooling (AC) after solution heat ... -
Precipitation in multicomponent, lean, Al-Mg-Si alloys: A transmission electron microscopy study
(Doctoral thesis at NTNU;2016:266, Doctoral thesis, 2016)Aluminium alloys have a number of versatile applications, and there are numerous alloys in production today, where a variety of solute additions and heat treatments are applied. This work focusses on lean, age-hardenable ... -
Precipitation, mechanical properties and early slant ductile fracture in cyclic and naturally aged Al-Zn-Mg(-Cu) alloys
(Peer reviewed; Journal article, 2022)Natural and artificial ageing treatments are compared with ageing by cyclic deformation at room temperature. Atom probe tomography and transmission electron microscopy revealed that a fine distribution of GP-zones, was ... -
Preclinical studies of Cu-64 radiopharmaceuticals for theranostics of hypoxic tumors
(Master thesis, 2021)Abstract will be available on 2024-08-26 -
Predicting Motion Patterns Using Optimal Paths
(Journal article; Peer reviewed, 2021) -
Predicting Vicsek Swarm Dynamics with LSTM Machine Learning
(Master thesis, 2024)Swarming behavior is prevalent throughout the natural world. The field of ac- tive matter investigates swarm dynamics using methods from condensed matter physics, including symmetry breaking, phase transitions, and statistical ... -
Prediction of a paramagnetic Meissner effect in voltage-biased superconductor/normal-metal bilayers
(Peer reviewed; Journal article, 2020)Conventional superconductors respond to external magnetic fields by generating diamagnetic screening currents. However, theoretical work has shown that one can engineer systems where the screening current is paramagnetic, ... -
Prediction of Protein Function using semantic Fingerprints - Multivariate Data Classification by Artificial Neural Networks involving dimensional Reduction
(Master thesis, 2016)In many fields of today's scientific research the amount of knowledge is far smaller than the amount of accessible data and often too limited to make meaningful analyses and draw reasonable conclusions. Hence, statistical ... -
Prediction of seakeeping abilities for the free-fall lifeboat FF1200
(Master thesis, 2012)In this thesis we have investigated seakeeping properties of Star CCM+. Star CCM+ is hoped to be used for simulations of the initial sailing phase of UMOE Schat Harding's new free fall lifeboat FF1200. It is a critical ... -
Preliminary in-situ study of FIB-assisted method for aluminium solid-state welding at the microscale
(Peer reviewed; Journal article, 2021)In situ studies allow real time monitoring and deep comprehension of phenomena. This approach has been applied to the current research for the development of a novel solid-state welding technique at the microscale. The ...