The Study of Si-Phase Growth Mechanism in Althix (A356) Alloy During Hot Deformation
- Organization:
- Canadian Institute of Mining, Metallurgy and Petroleum
- Pages:
- 6
- File Size:
- 748 KB
- Publication Date:
- Jan 1, 2006
Abstract
The microstructure in modified semi-solid ALTHIX (A356) alloy consists of aAl phase with Al/Si eutectic structure. Silicon phase in eutectic structure is coral like with fine fibers. The lack of good ductility in this alloy is related to the presence of silicon fibers. Accordingly many investigations have been recently conducted to modify the Si morphology through Thermomechanical processing on this alloy. In the present work an ALTHIX (A356) alloy was deformed at 450°C, 500°C and 540°C through different strain rates. Consequently the silicon fibers were broken into small particles. The results indicated that the Si particles may coarsen according to Ostwald ripening mechanism at 540°C deformed by rate of0.0005 sec-1 & 0.0001 sec-1-
Citation
APA: (2006) The Study of Si-Phase Growth Mechanism in Althix (A356) Alloy During Hot Deformation
MLA: The Study of Si-Phase Growth Mechanism in Althix (A356) Alloy During Hot Deformation. Canadian Institute of Mining, Metallurgy and Petroleum, 2006.