J. Phys. IV France
Volume 120, December 2004
Page(s) 555 - 562

J. Phys. IV France 120 (2004) 555-562

DOI: 10.1051/jp4:2004120064

Fluidized bed heat treatment of aluminum cast components

D. Apelian and S.K. Chaudhury

Metal Processing Institute, WPI - Worcester Polytechnic Institute, Worcester, MA 01609, USA

Heat Treatment and post casting treatments of cast components has always been an important step in the control of microstructure, and resultant properties. In the past, the solutionizing, quenching and ageing process steps may have "required" in total over 20 hours of processing time. With the advent of fluidized bed reactors (FB), processing time has been dramatically reduced. For example, instead of 8-10 hours solutionizing time in a conventional furnace, the time required in FB is less than an hour. Experiments with Al-Si-Mg alloy, (both modified with Sr, and unmodified) were performed, having different diffusion distances (different DAS), and for different reaction times and temperatures. Both the model and the experimental results are presented and discussed.

© EDP Sciences 2004