Search for dissertations about: "cemented carbide"

Showing result 1 - 5 of 43 swedish dissertations containing the words cemented carbide.

  1. 1. Cemented Carbide Sintering Constitutive Relations and Microstructural Evolution

    University dissertation from Stockholm : Materialvetenskap

    Author : Anders Petersson; KTH.; [2004]
    Keywords : Cemented carbides; Sintering; Constitutive relations; Microstructure; Densification; Modelling;

    Abstract : Cemented carbides based on tungsten carbide and cobalt arecommonly produced by a powder metallurgy route including liquidphase sintering. The pressed compact densifies to almost halfits volume during sintering due to pore elimination. READ MORE

  2. 2. Aspects of Structural Evolution in Cemented Carbide – Carbide Size, Shape and Stability

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Ida Borgh; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cemented carbide; Ti; Zr C; Coarsening; Phase separation; C-activity; initial WC powder size; electron backscattered diffraction; microscopy; X-ray diffraction;

    Abstract : Cemented carbide is a composite material used in applications like cutting tools and rock drilling inserts. The material commonly consists of WC grains embedded in a Co-rich binder phase and the material properties strongly depend on the WC grain size. READ MORE

  3. 3. On the Nature of Cemented Carbide Wear in Rock Drilling

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ulrik Beste; Uppsala universitet.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; cemented carbide; wear; rock drilling; rock; Materialvetenskap; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : WC/Co cemented carbide is a composite material for highly demanding wear applications. The unique combination of hardness (from the WC-phase) and toughness (from the binder Co) gives a material especially suitable for rock drilling. READ MORE

  4. 4. WC grain growth during sintering of cemented carbides Experiments and simulations

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Karin Mannesson; KTH.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cemented carbide; Grain growth; Abnormal grain growth; Image analysis; Modeling; 3-D grain size distribution; Inverse Saltykov; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : Cemented carbides are composite materials consisting of a hard carbide and a ductile binder. They are powdermetallurgically manufactured, where liquid-phase sintering is one of the main steps. The most common cemented carbide consists of WC and Co and it is widely used for cutting tools. READ MORE

  5. 5. Environmental, Resource and Health Assessments of Hard Materials and Material Substitution: The Cases of Cemented Carbide and Polycrystalline Diamond

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Anna Furberg; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; disability-adjusted life years; polycrystalline diamond; cemented carbide; Life cycle assessment; machining tools; material flow analysis;

    Abstract : The conventional hard material used in manufacturing industry, cemented carbide (WC-Co), mainly consists of the geochemically scarce elements tungsten and cobalt. This use of scarce resources could potentially be avoided by a material substitution to the more abundant and largely carbon-based material polycrystalline diamond (PCD). READ MORE