Failure analysis of a metallic component used in hospital cooling equipment

摘要

The paper presents the investigations made on samples taken from the related rotor blade of an hospital cooling equipment. The failure analysis was made in order to find if the failure appear because the metallic material used or was functional problem. The objectives of our analysis and techniques used are: determining the chemical composition by optical emission spectrometry; determining the hardness of the material; metallographic analysis by optical microscopy; micro compositional and microstructural analysis by scanning electron microscopy (SEM) and by microanalysis, energy dispersive X-ray (EDAX). This research highlighted the elaboration and casting quality of the piece, which led to a long life of its use.