Research Progress on Laser Powder Bed Fusion of Ni-based High-temperature Alloys for Aerospace
The adoption of Laser Powder Bed Fusion(LPBF)technology for manufacturing Ni-based high-temperature alloys exhibits significant production potential and finds extensive applications in the aerospace field,thus attracting considerable attention.In recent years,a substantial amount of research has been conducted by scholars to better understand the performance and ultimate capabilities of LPBF-nickel-based high-temperature alloys.This paper,based on recent studies on various LPBF-nickel-based alloys,elucidates the research objectives and significant findings in this field.A comprehensive analysis is presented on the effects of process parameters and heat treatment on the microstructure and mechanical properties of nickel-based high-temperature alloys and their composite additively manufactured components.Additionally,common modeling methods and research progress in LPBF processes are discussed.Finally,a prospectus for the future development of LPBF-nickel-based alloys is proposed.
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