METHODS FOR RADIOGRAPHIC AND CT INSPECTION OF WORKPIECES

The invention relates to methods for radiographic and computed tomography (CT) inspection of workpieces having increasingly complicated internal geometry. According to the invention, a contrast agent is deposited within the detailed internal geometry of, for example, an additivly-manufactured workpi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SABO, Nicolas Kristopher, ABBOTT, David Henry
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention relates to methods for radiographic and computed tomography (CT) inspection of workpieces having increasingly complicated internal geometry. According to the invention, a contrast agent is deposited within the detailed internal geometry of, for example, an additivly-manufactured workpiece or precision cast turbine blade, followed by complete removal of the contrast agent and all residues thereof after inspection. The contrast medium may comprise tungsten (W) or osmium (Os) and the removing may comprise leaching with hydrofluoric acid or ammonia.