Sökning: "Fretting fatigue"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Fretting fatigue.

  1. 1. Microstructural characterisation of fretting damage

    Författare :Ros-Marie Lundh; Chalmers University of Technology; []
    Nyckelord :fretting wear; fretting fatigue; fretting; SEM; AFM; TEM; STM; fretting mechanisms; fretting microstructure; wear mechanisms; fretting corrosion; debris;

    Sammanfattning : .... LÄS MER

  2. 2. On fretting fatigue with spherical indenter

    Författare :Alessandro Cadario; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 3. Life prediction and mechanisms for the initiation and growth of short cracks under fretting fatigue loading

    Författare :Alessandro Cadario; Bo Alfredsson; David Nowell; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Fretting fatigue; Fretting experiment; Friction evolution; Fatigue crack initiation; Fatigue crack growth; Short crack; Non-destructive testing; Acoustic emission; Potential drop; Shot peening; Stress relaxation; Crack closure; Finite element method; Titanium alloy.; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : Fretting fatigue is a damage process that may arise in engineering applications where small cyclic relative displacements develop inside contacts leading to detrimental effects on the material fatigue properties. Fretting is located in regions not easily accessible, which makes it a dangerous phenomenon. LÄS MER

  4. 4. Continuum models and numerical methods for fretting

    Författare :Peter Ireman; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : This study is concerned with continuum models and numerical methods for wear, frictional heat and damage. Of special interest are so called fretting phenomena. Fretting occurs when two bodies in contact experience small periodic, relative motion which leads to wear and the promoted initiation of fatigue cracks. LÄS MER

  5. 5. Surface Integrity of Broached Inconel 718 and Influence of Thermal Exposure

    Författare :Zhe Chen; Ru Lin Peng; Johan Moverare; Sten Johansson; Magnus Hörnqvist; Linköpings universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER;

    Sammanfattning : Inconel 718 is a nickel-based superalloy that is extensively used as a disc material in gas turbine engines. The service life of gas turbine discs is normally governed by the modes of material degradation and fatigue failure since they work mostly at high temperatures and are subjected to cyclic mechanical loadings. LÄS MER