Search for dissertations about: "Ni-based alloys"
Showing result 1 - 5 of 20 swedish dissertations containing the words Ni-based alloys.
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1. Material Solutions for Mitigating High Temperature Corrosion in Biomass- and Waste-fired Boilers - Utilizing Novel FeCrAl Alloys and HVAF-sprayed Ni-based Coatings
Abstract : Combustion of biomass and waste for heat and electricity production is a promising alternative to fossil fuels and is thereby an important step towards a more sustainable future. However, due to substantial amounts of alkali- and chlorine-containing species as well as moisture in biomass and waste, the combustion of these results in a highly corrosive environment which accelerates the degradation of steel components in the boiler, drastically increasing the maintenance costs. READ MORE
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2. High Temperature Oxidation and Corrosion of Ni-Based Superalloys for Industrial Gas Turbines
Abstract : High temperature oxidation and corrosion of Ni-based superalloys used for blades in industrial gas turbines was studied using advanced high-resolution electron microscopy methods. Both coated and non-coated alloys were tested. READ MORE
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3. Weld Cracking in Precipitation Hardening Ni-based Superalloys
Abstract : Manufacturing of hot structural components for aero engines requires the materials being used to be weldable. The high demands on strength and temperature resistance make nickel based superalloys the material of choice for this application. READ MORE
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4. Erosion-corrosion of Fe- and Ni-based alloys exposed at 550C
Abstract : .... READ MORE
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5. Interactions and phase stability in Ni-rich binary alloys
Abstract : Ni-based superalloys are the important materials for gas turbines in advancedaeroplane engines . The addition of refractory elements to these superalloys,such as rhenium and tungsten, can significantly improve the hightemperatureperformance by so-called solid-solution hardening. READ MORE