Precipitation in a high silicon Al-Si alloy studied by isothermal calorimetry


Starink, M.J. and Zahra, A.-M. (1998) Precipitation in a high silicon Al-Si alloy studied by isothermal calorimetry. Materials Science and Engineering A, 241, (1-2), 277-280. (doi:10.1016/S0921-5093(97)00460-7).

Download

Full text not available from this repository.

Description/Abstract

The precipitation in an Al–6mass%Si alloy was investigated by isothermal calorimetry. Three types of heat treatment were studied and precipitation rates in the samples increase in the order: Furnace cooled, ice-water quenched (IWQ) and naturally aged after IWQ. With the aid of a novel model for nucleation and growth reactions the measured exothermic heat flow is interpreted in terms of two processes: Growth of large undissolved Si particles and growth of pre-existing nuclei. The activation energies for precipitation are EA=0.89 eV for IWQ samples and EA=0.94 eV for furnace cooled samples.

Item Type: Article
ISSNs: 0921-5093 (print)
Related URLs:
Keywords: Al–Si, precipitation, isothermal calorimetry
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 21673
Date Deposited: 13 Dec 2006
Last Modified: 27 Mar 2014 18:11
URI: http://eprints.soton.ac.uk/id/eprint/21673

Actions (login required)

View Item View Item