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Influence of AlCr Layer to Fatiague Properties of Nickel Superalloy IN 713LC at the Temperature 800°C
Šulák, Ivo ; Julišová, Martina (referee) ; Podrábský, Tomáš (advisor)
The present diploma thesis is focused on the effect of AlCr layer on the low cycle fatigue behaviour of cast polycrystalline superalloy IN713LC at 800°C. Protective layer is made by chemical vapour deposition followed by heat treatment. Fatigue tests were conducted in strain control mode with constant total strain amplitude and strain rate. The fatigue behaviour is assessed by cyclic hardening/softening curves, cyclic stress-strain curves, Manson-Coffin curves and Basquin curves. Microstructure was observed in as-received state and also after cyclic loading by means of optical microscopy and SEM.
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Influence of Al and AlSi Layer to Fatiague Properties of Nickel Superalloy IN 713LC at the Temperature 800°C
Šulák, Ivo ; Juliš, Martin (referee) ; Podrábský, Tomáš (advisor)
Nickel based superalloys are mainly used for high-temperature applications in energetic and aerospace industry. They are exposed to extremely aggressive environment at high temperature with interaction between fatigue and creep processes, oxidation and erosion. Application of protective surface coating is the right way how to increase the lifetime while increasing performance of machine. Theme of this bachelor’s thesis is to investigate the fatigue parameters of superalloy In713LC at 800 °C and the comparison of these parameters between materials with a protective coating based on Al or Al-Si and material without coating.
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Influence of AlCr Layer to Fatiague Properties of Nickel Superalloy IN 713LC at the Temperature 800°C
Šulák, Ivo ; Julišová, Martina (referee) ; Podrábský, Tomáš (advisor)
The present diploma thesis is focused on the effect of AlCr layer on the low cycle fatigue behaviour of cast polycrystalline superalloy IN713LC at 800°C. Protective layer is made by chemical vapour deposition followed by heat treatment. Fatigue tests were conducted in strain control mode with constant total strain amplitude and strain rate. The fatigue behaviour is assessed by cyclic hardening/softening curves, cyclic stress-strain curves, Manson-Coffin curves and Basquin curves. Microstructure was observed in as-received state and also after cyclic loading by means of optical microscopy and SEM.
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Influence of Al and AlSi Layer to Fatiague Properties of Nickel Superalloy IN 713LC at the Temperature 800°C
Šulák, Ivo ; Juliš, Martin (referee) ; Podrábský, Tomáš (advisor)
Nickel based superalloys are mainly used for high-temperature applications in energetic and aerospace industry. They are exposed to extremely aggressive environment at high temperature with interaction between fatigue and creep processes, oxidation and erosion. Application of protective surface coating is the right way how to increase the lifetime while increasing performance of machine. Theme of this bachelor’s thesis is to investigate the fatigue parameters of superalloy In713LC at 800 °C and the comparison of these parameters between materials with a protective coating based on Al or Al-Si and material without coating.
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