Search for dissertations about: "steel fracture studies"
Showing result 1 - 5 of 36 swedish dissertations containing the words steel fracture studies.
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1. High-Temperature Durability Prediction of Ferritic-Martensitic Steel
Abstract : Materials used for high-temperature steam turbine sections are generally subjected to harsh environments with temperatures up to 625 °C. The superior creep resistance of 9–12 % Cr ferritic-martensitic steels makes them desirable for those critical steam turbine components. READ MORE
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2. Fracture behaviour and related microstructures of tool steels parted-off at high rates of strain
Abstract : Increasing steel prices and environmental aspects have put forward the demand to reduce material consumption in manufacturing industry and near-net-shape manufacturing techniques have thus become increasingly important. High-velocity parting-off, or adiabatic cutting, has shown to result in very low material waste as well as narrow dimensional tolerances of parted-off samples. READ MORE
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3. Fracture Mechanics in Design and Assessment of Existing Structures: Two Case Studies
Abstract : In the present thesis, the application of fracture mechanics in design and assessment of steel structures has been studied.The first case study concerns a ring-flange connection used in wind turbine towers. The flange is rolled from straight steel profile into a complete ring. READ MORE
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4. Temperature dependent mechanical properties of as-cast steels : Experimental and theoretical studies
Abstract : The temperature-dependent mechanical properties of steels are important to avoid processing defects, to understand and to improve the high-temperature performance. At the same time, having access to thermal properties gives us opportunity to assess the first-principles theoretical predictions at elevated temperatures. READ MORE
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5. Microstructural changes in high strength steels exposed to large deformation and high strain rates
Abstract : Increasing steel prices and environmental aspects have put forward the demand to reduce material consumption and energy usage in manufacturing industry and near-net-shape manufacturing techniques have thus become increasingly important. High-velocity parting-off,high-velocity forming and cold ring rolling are three such manufacturing methods that exhibit great potentials in terms of material waste reduction. READ MORE