Sökning: "aluminiumlegeringar"

Visar resultat 1 - 5 av 15 uppsatser innehållade ordet aluminiumlegeringar.

  1. 1. Corrosion protection of aluminum coated with a polymer matrix in presence and absence of conductive polymer

    Master-uppsats, KTH/Ytbehandlingsteknik

    Författare :Mohamed Hassan Abdi; [2021]
    Nyckelord :Corrosion protection; Barrier coating; Conductive polymer; Electrochemical impedance spectroscopy; Atomic force microscopy; Korrosionsskydd; Barriär beläggning; Ledande polymer; Elektrokemisk impedans spektroskopi; Atomkraftmikroskopi;

    Sammanfattning : Aluminium och aluminiumlegeringar har ganska bra korrosionsbeständighet, men dessa material kan fortfarande korrodera. Metallkorrosion är aldrig önskvärt och det kan leda till katastrofala resultat i olika branscher och applikationer. LÄS MER

  2. 2. Improvements of ground anchors for Better Shelter

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI); KTH/Skolan för teknikvetenskap (SCI)

    Författare :Joel Olsson; Richard Härlin; [2020]
    Nyckelord :;

    Sammanfattning : This report is part of a bachelor’s degree project in solid mechanics at KTH, Stockholm. It is performed by two students on behalf of the social enterprise Better Shelter, which provides shelters for people displaced by war and natural disasters. LÄS MER

  3. 3. Extraction Replicas of Common Engineering Alloys for Analysis of Small Precipitates

    Master-uppsats, KTH/Materialvetenskap

    Författare :Monika Rolinska; [2020]
    Nyckelord :Extraction replica; transmission electron microscopy; materials characterization; precipitation; Extraktionsrepliker; transmissionselektronmikroskopi; materialkaraktarisering; utskiljningar;

    Sammanfattning : Characterization of small precipitates is important for development of new alloys. One inherent  difficulty  in  characterisation  of  small  precipitates  with  electron microscopy techniques  while  the  particles  are  embedded  in  the  matrix,  is  that the surrounding bulk material will contribute to the analysed signal- limiting, for example, the quantification of the composition of particles. LÄS MER

  4. 4. Modelling of Laser Welding of Aluminium using COMSOL Multiphysics

    Master-uppsats, KTH/Materialvetenskap

    Författare :Jie Chen; [2020]
    Nyckelord :laser welding process; aluminium alloy; thermal-mechanical; COMSOL Multiphysics; hot cracking; thermal model; CFD model; mechanical model; Marangoni effect; lasersvetsningsprocess; aluminiumlegeringar; termisk-mekanisk; COMSOL-flerfysik; hetsprickning; termisk modell; CFD-modell; mekanisk modell; Marangoni-effekt;

    Sammanfattning : This thesis presents a modelling approach of laser welding process of aluminium alloy from the thermo-mechanical point of view to evaluate the occurrence of hot cracking based on simulation results and relevant criteria. The model was created stepwise in COMSOL Multiphysics, starting with the thermal model where heat conduction of solid and liquid phase was computed. LÄS MER

  5. 5. Chemical Interactions between tool and Aluminium alloys in metal cutting

    Master-uppsats, KTH/Materialvetenskap

    Författare :Louise Erkers; [2020]
    Nyckelord :Aluminium; aluminium machining; PCD; tool-chip interface; Thermo-Calc; AdvantEdge; automotive; Aluminium; aluminiumbearbetning; PCD; verktygs-chip-gränssnittet; Thermo-Calc; AdvantEdge; fordonsindustri;

    Sammanfattning : Aluminium applications in automotive will increase by 25 % over the next decade, mainly driven by the electrification and the reduction of fuel consumption. This diploma work aims to increase the understanding of the chemical interactions between aluminium alloys and typical tool systems in metal cutting. LÄS MER