Essays about: "3D microstructure"

Showing result 11 - 15 of 23 essays containing the words 3D microstructure.

  1. 11. Effect of Process Parameters on Contour Properties in Inconel 718 Structures Fabricated by Electron Beam Melting

    University essay from Linköpings universitet/Konstruktionsmaterial

    Author : Karthik Vaidyalingam Arumugam; [2019]
    Keywords : Process Parameters; Contour Properties; Inconel 718; Electron Beam melting;

    Abstract : Additive Manufacturing (AM), commonly known as 3D printing is a production method that utilises repeated addition of layers in order to produce a final shape. AM utilises less raw material and does not have drawbacks such as tool wear and material wastage as seen in conventional machining. READ MORE

  3. 12. Compact 3D Microscopy for Planetary Exploration

    University essay from KTH/Rymdteknik

    Author : Gustav Pettersson; [2018]
    Keywords : ;

    Abstract : We propose using grain-of-sand-scale microscopy (1-micrometre resolution) to study the microstructure and composition of planetary material in a fast, in-situ, solid-state device. We have constructed a small and light prototype instrument (100 grams, 0. READ MORE

  4. 13. Self-Lubricating Properties of Laser Claddings for High Temperature Forming Processes

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Tugce Caykara; [2018]
    Keywords : self-lubricating; steel; aluminium; friction; wear; high temperature; hot forming;

    Abstract : This thesis summarizes the work done on tribological characterization of multifunctional hardfacing coatings with self-lubricating properties, intended for use in mechanical components operating in high temperature applications for which conventional lubricants are no longer effective. Deposition techniques like laser cladding have a great potential in reworking/repair of high value industrial components in order to extend their lifetime. READ MORE

  5. 14. Evaluation of mechanical and microstructural properties for laser powder-bed fusion 316L

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Philip Eriksson; [2018]
    Keywords : Additive Manufacturing; Laser Powder-Bed Fusion; L-PBF; 316L; Mechanical Properties;

    Abstract : This thesis work was done to get a fundamental knowledge of the mechanical and microstructural properties of 316L stainless steel fabricated with the additive manufacturing technique, laser powder-bed fusion (L-PBF). The aims of the thesis were to study the mechanical and microstructural properties in two different building orientations for samples built in two different machines, and to summarize mechanical data from previous research on additive manufactured 316L. READ MORE

  6. 15. An Attempt Towards FE-Modelling of Fracture Propagation in Railway Wheels

    University essay from KTH/Spårfordon

    Author : Fred Öhnander; [2018]
    Keywords : Railway wheel; Wheel-rail contact; Wear; Fracture initiation; Physical fracture propagation model; FE-model; Fracture mechanics; XFEM; Inclusion; Järnvägshjul; Hjul-räl-kontakt; Slitage; Sprickinitiering; Fysisk sprickbildningsmodell; FE-modell; Frakturmekanik; XFEM; Imperfektion;

    Abstract : The demand for higher velocities and heavier axle loads for freight trains leads to higher forces on the railway wheels which in turn lead to an increase in stresses on and below the surface of the wheel-rail contact. By time, this induces wear on the wheels which consequently lead to higher maintenance costs and in some cases accidents. READ MORE