Search for dissertations about: "Phase transformations. transformation plasticity"
Found 4 swedish dissertations containing the words Phase transformations. transformation plasticity.
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1. Finite element simulation of transformation plasticity in martensitic transformation
Abstract : This study is concerned with the simulation of transformation plasticity in martensitic transformation. In the first paper the concept of a transformation plasticity strain is introduced from a phenomenological point of view. READ MORE
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2. Modeling of phase transformations and cyclic plasticity in pearlitic steels
Abstract : The low rolling resistance in railway transportation is a key factor for its high efficiency, but it comes at the price of very high contact pressure between the rail and wheel. Due to the high stresses and the large number of load cycles during railway operation, both the rail and the wheel can be susceptible to fatigue crack initiation and propagation. READ MORE
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3. Railway Wheel Flats. Martensite Formation, Residual Stresses, and Crack Propagation
Abstract : A railway wheel flat is a flat spot on the rolling surface of a wheel caused by its unintentional sliding on the rail. The reason for the sliding may be poorly adjusted, frozen or defect brakes, or too high braking forces in relation to the available wheel/rail adhesion. READ MORE
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4. Thermo-Mechanical-Metallurgical Modelling of Pearlitic Steels and Railhead Repair Welding
Abstract : The efficiency of rail transport is attributed to low rolling resistance, which comes at the cost of high contact pressures between rail and wheel. Consequently, both the rail and wheel can be susceptible to fatigue crack initiation and propagation due to the resulting high stresses and large number of load cycles in service. READ MORE