Gamma prime precipitation in as-deposited Ni-based superalloy IN713LC
SCRIPTA MATERIALIA(2024)
摘要
The as-deposited microstructure of an additively manufactured Ni-based superalloy fabricated using laser powder-bed-fusion has been investigated using atomic resolution transmission electron microscopy. It is shown that gamma ' precipitates exist in the as-deposited condition, albeit in a non-equilibrium state. The precipitates are present as nano-structured domains throughout the microstructure. These domains exhibit clear L12 ordering but show highly irregular matrix-precipitate interfaces.
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关键词
Laser deposition,High -resolution electron microscopy (HREM),Superalloy,Nanostructure,Nucleation of phase transformations
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