Effect of the supersaturation on the precipitation kinetics of the Guinier-Preston zones in Al-rich Ag alloys

The precipitation kinetics of the GP zones in a supersaturated solid solution depends on the level of its supersaturation which induces a driving force. The magnitude of this driving force increases with the increasing of the undercooling and the increasing of the solute supersaturation. At a given...

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Bibliographic Details
Main Authors: Sabah Senouci, Azzeddine Abderrahmane Raho
Format: Article
Language:English
Published: AIMS Press 2017-01-01
Series:AIMS Materials Science
Subjects:
Online Access:http://www.aimspress.com/Materials/article/1206/fulltext.html
Description
Summary:The precipitation kinetics of the GP zones in a supersaturated solid solution depends on the level of its supersaturation which induces a driving force. The magnitude of this driving force increases with the increasing of the undercooling and the increasing of the solute supersaturation. At a given temperature, the increasing of the supersaturation accelerates the precipitation of the GP zones. In an Alxat.%Ag alloy, the transformation kinetics depends on the contribution of the driving force and on that of the thermal activation which is preponderant.
ISSN:2372-0484