Título
Analysis of different inhibitors for magnesium investment castingOtras instituciones
ALFA Research, Development and InnovationVersión
Version publicada
Acceso
Acceso abiertoVersión del editor
http://dx.doi.org/10.1088/1757-899X/27/1/012072Publicado en
Proceedings of 3rd International Conference on Advances in Solidification Processes. Aachen. 7–10 June 2011. IOP Conference Series: Materials Science and Engineering Vol.27. Pp. 012072. Published online 12 January, 2011Editor
IOP PublishingPalabras clave
Magnesium alloysMagnesium
Fine blanking
Resumen
Investment casting of magnesium is a well suited process for the production of aeronautic and automotive components. But still, this process has not been properly developed. One reason for that are th ... [+]
Investment casting of magnesium is a well suited process for the production of aeronautic and automotive components. But still, this process has not been properly developed. One reason for that are the reactions between the Mg melt and the ceramics of the mould that produce a non-desired oxide layer on the part surface. These reactions can be inhibited by the use of silica-free slurries with a higher stability than conventional ones. Another way is using inhibitors, chemical compounds based in fluorides that react with the melt, creating a protective surface layer in the casting. With the aim of developing a reaction-free process, alumina moulds with a stepped geometry have been constructed. These provide different interface conditions. Conventional SF6, non-conventional KBF4 and NaBF4, and environmentally friendly FK inhibitors have been tested on. As a result, KBF4 has been identified as the most suitable inhibitor for magnesium investment casting. Furthermore, the analysis of the cooling curve of different interfaces has provided essential information about the reaction mechanism of the inhibitors. [-]
Colecciones
- Congresos - Ingeniería [341]
El ítem tiene asociados los siguientes ficheros de licencia: