Blar i Institutt for materialteknologi på emneord "Materialteknologi (MTMT), Materialutvikling og -bruk"
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Alternating Current Corrosion of Aluminum
(Master thesis, 2015)Formation of wax and hydrates due to production stops is a well-known problem in the oil industry. Conventionally the pipelines are heated beyond a critical temperature to avoid this problem. This is done by a method called ... -
Applications of screw extrusion for pure aluminium and aluminium foils
(Master thesis, 2018)This thesis has assessed the effect of the screw extrusion process on a super pure aluminium Ø 3mm wire. This thesis also determined that commercial quality aluminium foil can be screw extruded using the prototype found ... -
Characterization of Iron Bearing Particles in Relation to Fir-Tree Structure in Al-Mg Alloys
(Master thesis, 2018)Fir-tree structure is a well-known problem related to DC cast AA1xxx and AA5xxx alloys. During DC casting different iron bearing particles, e.g. AlmFe, Al3Fe and Al6Fe, are formed. A change of the dominating iron bearing ... -
Corrosion fatigue of an extruded 7046 alloy
(Master thesis, 2018)The corrosion fatigue properties of a 7046 alloy were investigated and compared to previously reported work by SINTEF on the same alloy tested in air. To establish the corrosion fatigue properties, samples were either ... -
Effekt av sigma fase i super duplex rustfritt stål (SDSS) studert ved in situ kaldstrekning i SEM
(Master thesis, 2017)Denne masteroppgaven har tatt for seg undersøkelser av super duplex rustfritt stål ved bruk av elektronmikroskopi i kombinasjon med diffraksjon av tilbakespredte elektroner (Electron Backscatter Diffraction EBSD). Målet ... -
Gjenvinning av Sjeldne Jordarter fra Elektronisk Avfall
(Master thesis, 2016)De sjeldne jordartene er en gruppe av grunnstoffer med like kjemiske egenskaper som omfatter lantanoidene og scandium og yttrium. I løpet av de siste tiårene har de blitt essensielle for moderne og grønn teknologi, men ... -
In-vitro Study of the Material Properties of PUR Subcutaneous Venous Access Ports Exposed to Chemotherapy Drugs and Whole Blood
(Master thesis, 2015)Central Venous Catheters (CVCs) are used to provide safe administration of chemotherapeutic drugs during cancer treatment. This study focused on how the treatment influences the material properties of one type of CVC, the ... -
Influence of impurity elements on the precipitation behaviour of dispersoids and their hardening effects in aluminium alloys
(Master thesis, 2017)Three different types of alloys have been investigated with respect to hardness, conductivity, strength and microstructural analysis using SEM and TEM. -
Investigation of bond strength and intermetallic phases in roll bonded steel-aluminium laminates at 150oC - Including the use of nickel interlayers
(Master thesis, 2018)This master's thesis investigates intermetallic growth and metallurgical bonding in cold roll-bonded steel-aluminium laminates. Commercially pure AA1080 aluminium alloy have been roll-bonded with two different steel types, ... -
Low Cycle Fatigue of Extruded and Cast Aluminium Alloy 6082
(Master thesis, 2017)The objective of the research is to determine the differences between the low cycle fatigue properties of an extruded and cast treatments of AA6082-T6 used as the forging billet in the production of a car suspension arm. ... -
Mechanical properties of bainitic and martensitic high strength steels in the hardened and untempered state
(Master thesis, 2018)The objective of the research project named RoHard, is to increase the understanding of the interaction between the quality of the incoming materials, the hardening process and the resulting mechanical properties of the ... -
Microstructural evolution of 3000 series multi-port extruded tubes during brazing cycles
(Master thesis, 2017)The AA3xxx series alloys are known for the good corrosion resistance and widely used as heat exchanging material. However, 3xxx series alloys shows intergranular corrosion problem after brazing. In this project, a systematic ... -
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 ... -
Precipitation hardening of a 6082 aluminium alloy upon application of direct electrical current
(Master thesis, 2018)The research deals with the investigation of the precipitation hardening response of a 6082 aluminium alloy with the application of direct electrical current. An experimental setup was designed and built to conduct experiments ... -
Press Form Hardening of Aluminium - The influence of hot forming, quench interruption and direct artificial aging on the mechanical properties of AA6082
(Master thesis, 2018)The automotive industry is in need of new lightweight solutions to meet stricter regulations regarding reduction in greenhouse gas emissions. Replacing steel components with age-hardenable high-strength aluminium alloys ... -
Recycling and Utilisation of Secondary Aluminium Products
(Master thesis, 2018)Efficient utilisation of secondary aluminium products is increasingly important as the energy consumption and CO2 emissions are greatly reduced by recycling compared to primary production. The aim of this study was to ... -
The Effect of Deformation by Torsion and Subsequent Heat Treatment on the Microstructure of AA6082
(Master thesis, 2018)An AA6082-aluminum alloy is used in the production of suspension components for cars at Raufoss Technology AS. The components are manufactured through a process of several forming and heating steps. Through torsion testing ... -
Work hardening and Portevin-Le Chatelier (PLC) effect in aluminium alloys
(Master thesis, 2018)Mechanical testing and microstructure characterization of an AA5182 alloy is performed for use as input for calibration and further development of models for work hardening and dynamic strain aging effects. The experimental ...