Microstructure Changes and Oxidation Resistance of Aluminized Ni‐Based Single Crystal Superalloys

Investigation of grain growth and microstructural evolution in electron beam melting additive manufacturing process

“…The development of Ni-based SX superalloys over the course of history implies that the later generations of superalloys, though promise quite significant increase in creep strength over first-generation superalloys, require extreme care in terms of balancing the heavy elements in the γ phase to avoid the formation of defects like Topologically Closed Packed (TCP) phases [119,126] and Secondary Reaction Zones (SRZs) [127] Along with these advancements, significant improvements are due in the conventional manufacturing process of Ni-based SX superalloys [130].…”