Search for dissertations about: "microstructure"

Showing result 1 - 5 of 925 swedish dissertations containing the word microstructure.

  1. 1. Chromium martensitic hot-work tool steels : damage, performance and microstructure

    Author : Johnny Sjöström; Jens Bergström; Farhad Rezai-Aria; Karlstads universitet; []
    Keywords : Hot-work tool steel; thermal fatigue; microstructure; Materialteknik; Materials Engineering;

    Abstract : Chromium martensitic hot-work tool steel (AISI H13) is commonly used as die material in hot forming techniques such as die casting, hot rolling, extrusion and hot forging. They are developed to endure the severe conditions by high mechanical properties attained by a complex microstructure. READ MORE

  2. 2. Tool steel for tool holder applications : microstructure and mechanical properties

    Author : Anna Medvedeva; Jens Bergström; Birger Karlsson; Karlstads universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; tool steel; tool holder; microstructure; mechanical properties; machinability; Materials science; Teknisk materialvetenskap;

    Abstract : Large improvements in cutting tool design and technology, including the application of advanced surface engineering treatments on the cemented carbide insert, have been achieved in the last decades to enhance tool performance. However, the problem of improving the tool body material is not adequately studied. READ MORE

  3. 3. On Thermal Conductivity and Strength in Compacted Graphite Irons : Influence of Temperature and Microstructure

    Author : Martin Selin; Ingvar L. Svensson; Attila Diószegi; Steve Dawson; Jönköping University; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Compacted Graphite Iron; Thermal Conductivity; Mechanical Properties; Hardness; Microstructure; Plastic Deformation; Hollomon Equation; Elevated Temperature; Materials science; Teknisk materialvetenskap;

    Abstract : Thermal conductivity, hardness and strength are all highly important material properties, affecting the performance and life expectancy of components operating at elevated temperatures. The main purpose of this work has been to increase the knowledge and understanding concerning how mechanical and physical properties are affected by temperature and microstructure in compacted graphite irons. READ MORE

  4. 4. Rheocasting of Aluminium Alloys : Slurry Formation, Microstructure, and Properties

    Author : Mostafa Payandeh; A. E. W. Jarfors; Torbjörn Carlberg; Jönköping University; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SSM Casting; aluminium alloy; RheoMetalTM process; microstructure; physical and mechanical properties;

    Abstract : Innovative materials with novel properties are in great demand for use in the criticalcomponents of emerging technologies, which promise to be more cost-effective and energyefficient.A controversial issue with regard to manufacturing complex industrial products isto develop advanced materials with optimised manufacturability in addition to the requiredmechanical and physical properties. READ MORE

  5. 5. Interfacial Microstructure of Lanthanum Manganites

    Author : Tomas Liljenfors; Chalmers University of Technology; []

    Abstract : .... READ MORE