Official PDF Translation•Academic Research Journal

Morphological and size evolution of γ' phases during aging in nickel-based single crystal superalloy

Authors: Ye-yuan HU; Shao-xiang LI; Qing-yan XU

DOI: 10.1016/S1003-6326(25)66978-0Status: Verified Translated Edition

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Key Findings in This Report

• Multistage solution treatment effectively eliminates eutectic phases and carbides in nickel-based single crystal superalloys. • Longer aging holding time (10 min vs 5 min) results in larger and more rectangular γ' precipitates. • Water cooling induces secondary γ' precipitates, affecting the final microstructure. • Phase field simulations reveal that lattice mismatch-induced coherency stresses and elevated stress triaxiality along 〈111〉 drive γ' rectangularization.