Search for dissertations about: "Quenching Crack"

Found 4 swedish dissertations containing the words Quenching Crack.

  2. 1. Fatigue Anisotropy in Forged Components

    Author : Cornelius Temmel; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inclusion Cluster; Low Sulfur; Machinability; Inclusion; Manganese Sulfide; Quenching Crack; Forging; Isotropic Quality; Steel; Anisotropy;

    Abstract : Ever-growing requirements on combustion engine efficiency of motor vehicles demand increasing service loads in powertrain components. Optimization of component material is therefore inevitable. A major detriment with many forged transmission components is their anisotropic mechanical behavior, not least during cyclic loading. READ MORE

  4. 2. Analysis of thermal shock in brittle materials

    Author : Marianne Collin; KTH; []
    Keywords : thermal shock; thermal stress; stress intensity; vickers indentation; alumina; silicon varbide whisker reinforced alumina;

    Abstract : This thesis concerns thermal shock damage of ceramicmaterials. More specifically the work is focused on theoreticaland practical aspects of a new technique for determining thethermal shock resistance of brittle materials. READ MORE

  5. 3. Toughness of Tool Steel

    Author : Henrik Jesperson; Håkan Engqvist; Birger Karlsson; Uppsala universitet; []
    Keywords : Toughness; Tool Steel; Heat Treatment; Temperature; Energy absorption; Impact Testing; Fracture Toughness Testing; Non-metallic Inclusions; Carbides; Nitrides; Statistics; TECHNOLOGY; TEKNIKVETENSKAP; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Abstract : Toughness is the ability to resist tensile stresses in the presence of a notch or crack. Sometimes gross cracking of industrial tools, mould or dies, occurs due to insufficient toughness. As the economic consequences of the gross cracking are serious, the toughness of industrial tool material, generally tool steel, is of paramount importance. READ MORE

  6. 4. Thermal shock and thermal fatigue in ceramic materials

    Author : Tomas Andersson; KTH; []
    Keywords : ;

    Abstract : This thesis concerns thermal stress fracture in ceramicmaterials. The work describes a new technique for determiningthe thermal shock resistance of brittle materials as well asexperimental results and thermal stress simulations. READ MORE