Essays about: "Microcracks"

Showing result 6 - 10 of 13 essays containing the word Microcracks.

  1. 6. Influence of nitrocarburization on the thermomechanical fatigue properties of ductile iron for exhaust components : Analysis and comparisons of TMF-properties

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Karl Larsson; [2019]
    Keywords : Thermo-mechanical fatigue; low cycle fatigue; thermal strain; ductile cast iron; nitrocarburizing;

    Abstract : New stricter environmental legislation requires lower emissions and fuel consumption of automotive engines. Therefore the fuel efficiency must be increased but this leads to higher loads in the engine. As for the exhaust system it is affected by higher thermomechanical loads. READ MORE

  3. 7. Thin ply CFRP for cryogenic fuel tank applications

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

    Author : Bernardo Sandoval; [2019]
    Keywords : Carbon Fiber; Thin ply; Cryogenic; Fatigue; Cracks; Microcracks;

    Abstract : .... READ MORE

  4. 8. Assessment of creep damage in Fe-Ni-Cr alloys

    University essay from KTH/Hållfasthetslära (Avd.)

    Author : Frans Sorsh; [2019]
    Keywords : ;

    Abstract : It is only a matter of time before components working in high temperature environments fail due to creep. Design for creep is therefore of vital importance to maximize the lifetime of components and reduce costs that may arise from maintenance and replacement of components. READ MORE

  5. 9. Improved interconnect materials for next-generation Solid Oxide Fuel Cells

    University essay from KTH/Materialvetenskap

    Author : Pablo Collantes; [2019]
    Keywords : Solid Oxide Fuel Cells; High Temperature Corrosion; Self-healing; Interconnects;

    Abstract : Solid Oxide Fuel Cells (SOFC) are attractive candidates in the search for cleaner and energy efficient production due to their numerous advantages such as fuel flexibility, modularity and exceptional efficiencies when combined heat and power is harnessed. A key element in its design are the interconnects which are mainly manufactured from custom ferritic stainless steels to carry the electricity between two adjacent cells. READ MORE

  6. 10. Study of defects in PV modules : UV fluorescence and Thermographic photography for Photovoltaics (PV) Field Application

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Sophie Nylund; Zahra Barbari; [2019]
    Keywords : UV fluorescence; IR thermography; defects in PV modules; delamination; discoloration; hotspots; snail trails; cracks; fault in bypass diode; non-functioning cell in PV;

    Abstract : For a PV plant it is of fundamental importance that the operation of the PV modules is free from faults or at least that the faults can be detected early, to ensure efficient electricity production. Some defects such as cracks can be seen in visible light while microcracks and damage to the silicon material can only be seen through special lighting. READ MORE