Sökning: "hardmetals"

Hittade 3 uppsatser innehållade ordet hardmetals.

  1. 1. Diffusion in the liquid Co binder of cemented carbides: Ab initio molecular dynamics and DICTRA simulations

    Master-uppsats, KTH/Materialvetenskap

    Författare :Martin Walbrühl; [2014]
    Nyckelord :Ab initio; molecular dynamics; AIMD; DICTRA; cemented carbides; hardmetals; diffusion; liquid Co; cobalt; binder phase;

    Sammanfattning : A fundamental quantum mechanical modelling approach is used for calculating liquid diffusion parameters in cemented carbides. Up to now, no detailed description of diffusion for alloying elements in a liquid Co matrix is available. LÄS MER

  3. 2. Effect of microstructure on toughness characteristics of cutting materials

    Master-uppsats, KTH/Materialvetenskap

    Författare :saad sheikh; [2012]
    Nyckelord :Fracture toughness; Microstructural characterization;

    Sammanfattning : Improved fracture toughness at a given strength level is one of the most important properties of cemented carbides. Large number of different testing methods (both theoretical and experimental) has been proposed to determine fracture toughness of cemented carbides and it has been always a topic of interest to relate fracture toughness with mechanical properties. LÄS MER

  4. 3. Edge effect on abrasive wear mechanisms and wear resistance in WC-6wt.% Co hardmetals

    Magister-uppsats, Institutionen för ingenjörsvetenskap, fysik och matematik

    Författare :Teresa Adeva Rodil; [2006]
    Nyckelord :Wear reistance on abrasive wear;

    Sammanfattning : Wear of hardmetals is a complicated topic because the wear resistance and the wear mechanisms are influenced by microstructural factors. Although edge wear resistance has a vital importance, most of the researches made in laboratories are related to flat wear resistance using coarse abrasive paper. LÄS MER