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DOI: 10.1055/s-2008-1045151
Oberflächenanalyse und metallographische Untersuchungen an Judet-Prothesen
Surface Analysis and Metallographic Studies of Judet ProsthesesPublication History
Publication Date:
18 March 2008 (online)
Zusammenfassung
Die Oberflächenanalyse von 25 Judet-Prothesen ergab an allen Exemplaren Verunreinigungen der Oberfläche mit Resten der Einbettmasse sowie mit Korundkörnern und Glaskugeln. Die metallographische Untersuchung von zwei zufällig ausgewählten Judet-Prothesen zeigte in den Querschnitten Nester von Mikroporositäten sowie Karbide an den Korngrenzen.
Abstract
Surveying a quantity of 25 prostheses type Judet by stereoscopy and scanning electron microscopy in all specimen contaminations of the surface were found. By X-ray microanalysis these contaminations were ascertained to be mainly residues of the casting mould. Furthermore, tooling residues from the sandblast (e. g. grains of corundum or glass) were found. A metallographic investigation, which was performed thereupon on two randomly selected specimen, shows clusters of microporosities in the cross sections and carbides in the grain boundaries.