A new spray forming technique for the preparation of aluminium rutile (TiO2) ex situ particle composite

Role of processing parameters on microstructural evolution of spray formed Al–2Mg alloy and Al–2Mg–TiO2 composite

“…6a-c) show uniform distribution of Mg throughout the Al-2Mg matrix [16]. This is in contrast with the stir cast composite, where Mg segregation at the interface was observed owing to the formation of Al 2 MgO 4 phase [22].…”

“…Diameters of inner and outer tubes were chosen to get the desired volume fraction of TiO 2 particles in the composite. Processing details have been discussed elsewhere [16]. Melt and preheated (200 • C) rutile particle were simultaneously passed through outer and inner tubes, respectively.…”

Tensile and fracture behavior of spray formed and stir cast Al–2Mg–TiO2 composites

“…Al-2Mg alloy was prepared by conventional atomization of liquid melt into fine droplets and their subsequent deposition on a copper substrate. The processing details is mentioned elsewhere [8]. Spray formed Al-2Mg-TiO 2 composites with TiO 2 containing 6 and 11 wt.% were prepared by a modified spray forming process, which essentially consists of passing of melt and particles through a set of concentric tubes and simultaneous atomization of the melt into fine droplets and dispersion of TiO 2 particles at the orifice of a confined type atomizer.…”

Influence of TiO2 particles on recrystallization kinetics of Al–2Mg–TiO2 composites

“…Orifice diameters of concentric tubes were selected to get the desired weight fraction of TiO 2 particles in the matrix. Processing parameters are mentioned elsewhere [12]. The mean size of TiO 2 particles was 113 m with a standard deviation of 38 m. AMCs with same compositions were also prepared by stir casting (SC) technique [13].…”