Preliminary communication

Use of SEM and EDS analysis in the investigation of Al-Si-Cu piston alloy cast porosity

D. Kakaš ; Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia
L. Kovačević ; Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia
P. Terek ; Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia
D. Krumes ; Faculty of Mechanical Engineering in Slavonski Brod University of Osijek, Slavonski Brod, Croatia
Z. Kolumbić ; Faculty of Mechanical Engineering in Slavonski Brod University of Osijek, Slavonski Brod, Croatia

Abstract

Porosity formation was detected in the casting thinnest section in the proximity of the as cast surface and near the wall centerline. In order to investigate the cause of the porosity formation light microscopy was used to define as cast structure. After initial findings SEM and EDS analyses were performed. Based on the results it is possible to define cause of the observed porosity. A number of pores originates from the mould filling stage and entrainment of the oxide films, while others appear due to insufficient feeding during solidification.

Keywords

casting; porosity; piston; SEM; EDS

Hrčak ID:

35472

URI

https://hrcak.srce.hr/35472

Publication date:

1.7.2009.

Article data in other languages: croatian

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