Search for dissertations about: "Wear mechanisms"

Showing result 11 - 15 of 150 swedish dissertations containing the words Wear mechanisms.

  2. 11. A study on wear characteristics of high strength steels under sliding contact

    Author : Abdulbaset Mussa; Pavel Krakhmalev; Jens Bergström; Jens Hardell; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High strength steels; thread joint wear; punch wear; sliding wear; surface cracking; reciprocal sliding; fatigue; surface delamination; white etching layer; nano-structured layer; friction; Materialteknik; Materials Engineering;

    Abstract : In the last decades, significant improvements regarding the design, materials and technology of rock drills have been made. Likewise, in sheet metal forming, forming tools experience very high contact pressures when processing high strength steel sheets. READ MORE

  4. 12. Ionic lubricants : Molecular features and surface protection mechanisms

    Author : Bulat Munavirov; Sergei Glavatskih; Istvan Furo; Rob Dwyer-Joyce; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ionic liquid; lubrication technology; tribology; boundary lubrication; tribofilm; friction; wear; physico-chemical interaction; diffusion NMR; jonisk vätska; smörjteknik; tribologi; gränsskiktssmörjning; tribofilm; friktion; slitage; fysikalisk-kemisk interaktion; NMR diffusometri; Machine Design; Maskinkonstruktion;

    Abstract : In this thesis ionic liquids (ILs) are investigated as prospective candidates for lubrication. Three custom synthesized phosphonium orthoborate type ILs were extensively studied from the prospective of molecular structuring both in bulk and at the interface and from the prospective of their lubricating performance as neat lubricants and as additives in oils. READ MORE

  5. 13. Wear of piston rings in hydrostatic transmissions

    Author : Ulf Skytte af Sätra; Sören Andersson; Kenneth Holmberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; piston ring; surface roughness; texture; coating; wear; hydraulic motor; Construction engineering; Konstruktionsteknik; Mechanical engineering; Maskinteknik;

    Abstract : This study focuses on the wear of piston rings in a hydraulic radial piston motor. The piston ring has to satisfy increasing demands for reliability and longer service life. It has two contacting surfaces, the face and the flank, and operates under a boundary lubrication state. READ MORE

  6. 14. Wear mechanisms of ceramic cutting tools

    Author : Gunnar Brandt; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  7. 15. Wear mechanisms in sheet metal forming : Effects of tool microstructure, adhesion and temperature

    Author : Anders Gåård; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Materials Engineering;

    Abstract : .... READ MORE