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Title: Influence of mechanical alloying on precipitation in aluminium alloy
Authors: Lu, L. 
Lai, M.O. 
Wu, C.F.
Breach, C.
Issue Date: 1999
Source: Lu, L.,Lai, M.O.,Wu, C.F.,Breach, C. (1999). Influence of mechanical alloying on precipitation in aluminium alloy. Materials Science Forum 312 : 357-362. ScholarBank@NUS Repository.
Abstract: Differential scanning calorimetry (DSC) study on precipitation of Al-4.5wt.%Cu10vol.%SiC produced using mechanical alloying revealed three exothermic events which correspond to θ', θ' and θ precipitations. It was noted that the precipitation of Al alloy metal matrix composite produced using mechanical alloying technique was different from those synthesised using powder metallurgy. No θ' precipitation peak could be detected from the mechanically alloyed specimens. The heat released of both θ' and θ precipitations decreased with duration of mechanical alloying. Thermal mechanical analysis (TMA) showed that the coefficient of thermal expansion (CTE) of the mechanically alloyed and non-mechanically alloyed specimens was, in general, identical. No different stages of precipitation could not be observed using TMA measurement.
Source Title: Materials Science Forum
ISSN: 02555476
Appears in Collections:Staff Publications

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