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This study investigates a novel laser powder bed fusion nickel-based superalloy, HfY-René104, which incorporates hafnium (Hf) and yttrium (Y) to improve the strength-ductility trade-off typical in high Al and Ti content superalloys. The findings reveal that the addition of Hf and Y enhances melt characteristics, microstructure, and mechanical properties, achieving a yield strength of 823 MPa and an ultimate tensile strength of 1158 MPa with 24.6% elongation. This research provides a new composition design

Author

sreesunthar

Language

EN