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Kinetics of fatigue crack propagation in steels P91 and P92
Kander, Jan ; Němec, Karel (referee) ; Věchet, Stanislav (advisor)
The main subject of this master’s thesis was to evalute inluence of loading cycle asymmetry and long-term thermal exposure on fatigue crack growth rate in martensitic P91 and P92 steels. Experiments were carried out in Material and metallurgical research Ostrava Ltd. and their main aim was to study the influences of different loading cycle asymmetries (R = 0,1 and R = 0,6) as well as 5000 hours/600 °C (P91) respectively 5000 hours/650 °C (P92) of thermal exposure on fatigue crack growth rate.
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Influence of asymmetry loading cycle on fatigue crack growth of alloy Inconel 625
Kander, Jan ; Kohout, Jan (referee) ; Věchet, Stanislav (advisor)
The main subject of this bachelor thesis was to evaluate influence of asymmetry of loading cycle on fatigue crack growth rate in a nickel-based superalloy Inconel 625. Experimental part of this thesis was carried out in Material and metallurgical research Ltd. Company in Ostrava, it’s main aim was to study the influences of loading cycles with parameter of asymmetry R = 0,1 and R = 0,7 on crack growth rate. Theoretical part deals with structure of nickel-based superalloys and fatigue crack growth rate.
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Kinetics of fatigue crack propagation in steels P91 and P92
Kander, Jan ; Němec, Karel (referee) ; Věchet, Stanislav (advisor)
The main subject of this master’s thesis was to evalute inluence of loading cycle asymmetry and long-term thermal exposure on fatigue crack growth rate in martensitic P91 and P92 steels. Experiments were carried out in Material and metallurgical research Ostrava Ltd. and their main aim was to study the influences of different loading cycle asymmetries (R = 0,1 and R = 0,6) as well as 5000 hours/600 °C (P91) respectively 5000 hours/650 °C (P92) of thermal exposure on fatigue crack growth rate.
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Influence of asymmetry loading cycle on fatigue crack growth of alloy Inconel 625
Kander, Jan ; Kohout, Jan (referee) ; Věchet, Stanislav (advisor)
The main subject of this bachelor thesis was to evaluate influence of asymmetry of loading cycle on fatigue crack growth rate in a nickel-based superalloy Inconel 625. Experimental part of this thesis was carried out in Material and metallurgical research Ltd. Company in Ostrava, it’s main aim was to study the influences of loading cycles with parameter of asymmetry R = 0,1 and R = 0,7 on crack growth rate. Theoretical part deals with structure of nickel-based superalloys and fatigue crack growth rate.
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