Microstructure and hardness studies of Inconel 718 manufactured by selective laser melting before and after solution heat treatment

Microstructure and hardness studies of Inconel 718 manufactured by selective laser melting before and after solution heat treatment

The microstructure of Additive Manufactured (AM) Inconel 718 in general and Selective Laser Melting (SLM), in particular is different from the material produced by conventional methods due to the rapid solidification process associated with the former. As a result, the widely adapted standard soluti...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2017-03, Vol.689, p.220-232
Hauptverfasser: Tucho, Wakshum M., Cuvillier, Priscille, Sjolyst-Kverneland, Atle, Hansen, Vidar
Format: Artikel
Sprache:eng
Schlagworte:
Aging (metallurgy)
Cellular precipitates
Diamond pyramid hardness tests
Dislocation
Dislocation density
Dissolution
Electron microscopy
Grain boundaries
Hardness
Heat treating
Laser beam melting
Metallurgical constituents
Microhardness
Microsegrgation
Microstructure
Nickel base alloys
Optical microscopy
Precipitates
Precipitation
Precipitation heat treatment
Rapid solidification
Scanning electron microscopy
Solidification
Solution heat treatment
Superalloys
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Zusammenfassung:The microstructure of Additive Manufactured (AM) Inconel 718 in general and Selective Laser Melting (SLM), in particular is different from the material produced by conventional methods due to the rapid solidification process associated with the former. As a result, the widely adapted standard solution heat treatment temperature (
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2017.02.062