Understanding the microstructural stability in a γ′-strengthened Ni-Fe-Cr-Al-Ti alloy

Bharat Gwalani,Shivakant Shukla,Donovan Leonard,Jonathan D. Poplawsky,Dean T. Pierce,Libor Kovarik,Govindarajan Muralidharan,Arun Devaraj

Journal of Alloys and Compounds（2021）

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摘要

•The high temperature microstructural stability of a Fe-Ni-Cr-Al-Ti based alloy was studied.•Microstructure after heat-treatment was studied using electron microscopy, atom probe tomography and computational predictions.•The multimodal microstructural characterization validated computational thermodynamic model predictions.

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关键词

γ′ precipitate,Fe-Ni-Cr–based superalloys,Atom probe tomography,CALPHAD

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