Search for dissertations about: "gjutjärn"
Showing result 1 - 5 of 9 swedish dissertations containing the word gjutjärn.
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1. Some aspects of convection as well as graphite and carbide formations during casting
Abstract : It is an established fact that segregation during casting affects the physical properties of carbon-based ferro alloys; this motivates the study of the segregation behaviour of carbon and carbide-forming solute elements. In this context, this thesis investigates two different situations: the effects of cooling rate and turbulence on the precipitation behaviour of the graphite nodules in nodular cast iron; the nature of carbide precipitation in a bearing steel grade and the effects of subsequent soaking on these carbides. READ MORE
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2. The role of primary austenite morphology in cast iron
Abstract : Automotive industry products portfolio includes a wide variety of complex-shaped cast iron products, such as truck engine components. Urged by strict environmental regulations on emissions, these components constantly need to combine higher demands on performance with lighter designs. READ MORE
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3. Characterization of factors interacting in CGI machining : machinability - material microstructure - material physical properties
Abstract : The Swedish truck industry is forced to find new material solutions to achieve lighter engines with increased strength. Customers and new environmental regulations demand both higher specific power and more environmentally friendly trucks, and this places a rising pressure on the manufactures. READ MORE
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4. Density variations during solidification of lamellar graphite iron
Abstract : .... READ MORE
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5. Oxidation, Creep and Fatigue Synergies in Cast Materials for Exhaust Manifolds
Abstract : The future development of engines of heavy-duty vehicles towards reduced CO2 emission will increase the exhaust gas temperature and render the exhaust atmosphere more corrosive. The current service material of exhaust gas components - a ferritic ductile cast iron called SiMo51 - will soon meet its upper-temperature limit. READ MORE