Search for dissertations about: "Pearlitic steel"
Showing result 1 - 5 of 29 swedish dissertations containing the words Pearlitic steel.
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1. Anisotropy in pearlitic steel subjected to rolling contact fatigue - modelling and experiments
Abstract : In rails and wheels subjected to severe rolling/sliding contact, large plastic deformations accumulate in the surface layer. This decreases the fatigue resistance of components and makes this layer prone to formation of common rolling contact related defects. READ MORE
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2. On the modeling of anisotropy in pearlitic steel subjected to rolling contact fatigue
Abstract : One of the main sources of damage caused by Rolling Contact Fatigue (RCF) inrailway components is the large plastic deformations that accumulate in the surface layerof these components. Large plastic deformations in components made of pearlitic steelinduce anisotropy in the mechanical properties of the material. READ MORE
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3. Effect of large shear deformation on fatigue crack behavior in pearlitic rail steel
Abstract : The impacts from global warming and climate change continue to rise and securing the needs of future generations requires a transition to a climate-neutral society. Rail transportation, as being one of the safest and most energy efficient modes of transportation offers a sustainable alternative to fossil-fueled based transportation. READ MORE
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4. On multiscale modeling of pearlitic steel
Abstract : By studying pearlitic steels using a scanning electron microscope it can be observed that pearlite is a two-phase material with cementite lamellae embedded in a matrix of ferrite. The cementite is commonly described as being stiff and brittle in comparison to the ferrite which is considered to have a soft and ductile mechanical behavior. READ MORE
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5. Computational Multiscale Modeling of Pearlitic Steel
Abstract : The objective of this thesis is to investigate the possibilities to describe the mechanical behaviorof a pearlitic steel by using computational homogenization, or multiscale modeling. The proposed model contains three scales: the engineering macroscale, the mesoscale representing the colonies of the pearlite and the microscale containing the individual cementite lamellae and the ferrite matrix. READ MORE