Characterization of Spatter and Sublimation in Alloy 718 during Electron Beam Melting

Due to elevated temperatures and high vacuum levels in electron beam melting (EBM), spatter formation and accumulation in the feedstock powder, and sublimation of alloying elements from the base feedstock powder can affect the feedstock powder's reusability and change the alloy composition of f...

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Veröffentlicht in:	Materials 2021-10, Vol.14 (20), p.5953, Article 5953
Hauptverfasser:	Raza, Ahmad, Hryha, Eduard
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloy powders Alloying elements Alloys Chemical analysis Chemistry Chemistry, Physical Chromium Condensates Electron beam melting Energy efficiency Heat Heat shields High temperature High vacuum Ion beams Materials Science Materials Science, Multidisciplinary Metal powder Metal vapors Metalization Metallurgy & Metallurgical Engineering Microstructural analysis Nickel base alloys Oxidation Oxygen content Physical Sciences Physics Physics, Applied Physics, Condensed Matter Powder reuse Projectiles Raw materials Scanning electron microscopy Science & Technology Shields Spatter formation Spectrum analysis Sublimation Superalloys Technology Thickness Vapor pressure
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