By suitable control of thermal conditions in directional-solidification process, supperalloy structural and machine components (e.g., turbine blades) cast with microstructures enhancing resistance to fatigue. Specific version of process and thermal conditions chosen to reduce micro-segregation during solidification and to minimize or eliminate script carbide and eutectic-phase inclusions, which are brittle inclusions found to decrease resistance to fatigue.
Eutectic-Free Superalloy Made By Directional Solidification
NASA Tech Briefs ; 19 , 9
1995-09-01
Miscellaneous
No indication
English
Eutectic-Free Superalloy Made by Directional Solidification
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