Investigations of MX and γ′/γ″ precipitates in the nickel-based superalloy 718 produced by electron beam melting

Samples with a composition similar to the nickel-based superalloy Inconel alloy 718 were produced by electron beam melting of prealloyed powder and investigated with respect to type and composition of the strengthening precipitates. The matrix consists of γ grains orientated in nearly the same direc...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-05, Vol.480 (1), p.138-147
Main Authors: Strondl, A., Fischer, R., Frommeyer, G., Schneider, A.
Format: Article
Language:English
Subjects:
Atom probe field ion microscopy
Cross-disciplinary physics: materials science
rheology
Differential thermal analysis
Electron beam melting
Electron microscopy
Exact sciences and technology
Inconel alloy 718
Materials science
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Precipitation
Solid solution, precipitation, and dispersion hardening
aging
Treatment of materials and its effects on microstructure and properties
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Summary:Samples with a composition similar to the nickel-based superalloy Inconel alloy 718 were produced by electron beam melting of prealloyed powder and investigated with respect to type and composition of the strengthening precipitates. The matrix consists of γ grains orientated in nearly the same direction, almost like a single crystal. Coarse precipitates (
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2007.07.012