Sökning: "wear resistance"

Visar resultat 1 - 5 av 116 avhandlingar innehållade orden wear resistance.

  1. 1. On wear of wood-cutting tools : Tool materials, wear mechanisms and modelling

    Detta är en avhandling från Karlstad : Karlstad University Studies

    Författare :Johan Nordström; [2005]
    Nyckelord :Tool material; Wood cutting; Wear; Modelling;

    Sammanfattning : Bandsaw blades are commonly used in the sawmill industry for timber cutting. The saw teeth are gradually worn during cutting and will finally cause unacceptable surface roughness and dimensional deviations on the sawn wood product. Maintenance by re-sharpening of the saw teeth is therefore necessary after a certain time of sawing. LÄS MER

  2. 2. A Ni3Al-alloy and its Composites as Potential Wear Resistant Materials for Advanced Applications

    Detta är en avhandling från Karlstad : Karlstad University Studies

    Författare :Karin Anne Xia Gong; [2011]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Abrasive wear; Intermetallic matrix composite; Friction coefficient; Wear-resistant materials.; Nickel aluminide; Specific wear rate; Sliding wear;

    Sammanfattning : The Ni3Al-based intermetallic alloys as engineering materials in service, they may be subjected to a wear environment of some sort. Hence, it is technologically important to understand the tribological response and to determine methodologies to improve wear resistance of these advanced materials. LÄS MER

  3. 3. Characterization of ceramic coatings : microstructure, adhesion and wear resistance

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mikael Olsson; Uppsala universitet.; [1989]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 4. Electrical and Frictional Performance of Tin-Coated Contacts Exposed to Wear and Fretting Corrosion

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Tag Hammam; Uppsala universitet.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Friction; Fretting; Wear; Contact resistance; Tin; Connectors; Materialvetenskap; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Sammanfattning : The complexity of electronic systems in vehicles is rapidly increasing, and as a consequence, the long-term reliability of automotive connectors has become an important issue. The aims of this thesis have been:1. to characterize the friction, wear and electrical properties of tin coatings,2. LÄS MER

  5. 5. Wear mechanisms in sheet metal forming Effects of tool microstructure, adhesion and temperature

    Detta är en avhandling från Karlstad : Karlstad University

    Författare :Anders Gåård; Karlstads universitet.; Karlstads universitet.; Karlstads universitet.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Materials Engineering; Galling; sheet metal forming; wear; friction; adhesion; temperature;

    Sammanfattning : The general trend in the car body manufacturing industry is towards low-series production and reduction of press lubricants and car weight. The limited use of lubricants, in combination with the introduction of high and ultrahigh-strength sheet materials, continuously increases the demands on the forming tools. LÄS MER