Microstructural analysis of the reinforced Al-Cu5mgti/Tib2 5 wt% Alloy for Investment casting applications
Langue
en
Article de revue
Ce document a été publié dans
Advanced Engineering Materials. 2010-06, vol. 12, n° 6, p. 504-508
Wiley-VCH Verlag
Résumé en anglais
The paper describes the influence of 5 wt % titanium diboride (TiB<sub>2</sub>) particles on the microstructure of an Al-Cu alloy produced by plaster casting process. The elaboration route leads to a composite material ...Lire la suite >
The paper describes the influence of 5 wt % titanium diboride (TiB<sub>2</sub>) particles on the microstructure of an Al-Cu alloy produced by plaster casting process. The elaboration route leads to a composite material with 1% of in situ TiB<sub>2</sub> particles and 4% ex situ of TiB<sub>2</sub> particles. The comparison of the reinforced alloy with the corresponding non-reinforced counterpart makes clear that the presence of TiB<sub>2</sub> particles has a large influence in the observed microstructure. The presence of TiB<sub>2</sub> particles decreases the grain sizes and the porosity level. It is also found that TiB<sub>2</sub> particles play an important role in the precipitation events of Al<sub>2</sub>Cu precipitates that are formed during solidification at the TiB<sub>2</sub>/aluminum matrix interfaces.< Réduire
Mots clés en anglais
Interface
Scanning/transmission electron microscopy
Casting
Metal-matrix composites (MMCs)
Origine
Importé de halUnités de recherche