Dilatometric and DSC Study of the Kinetics of Discontinuous Precipitation of Ag2Al Intermetallic in Al – 10% Ag Alloy


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Abstract

The kinetics of discontinuous precipitation of Ag2Al intermetallic in alloy Al – 10% Ag is studied after 10-h holding in vacuum at 530°C and subsequent water quenching. The DSC and dilatometric curves are plotted for heating rates ranging from 5 to 20 K/min. The activation energy of formation of the Ag2Al γ-phase is computed from the DSC data with the help of the Boswell equation and by the Kissinger method.

About the authors

H. Belhouchet

Physics Department, Faculty of Science, University of M’sila; Non Metallic Materials Laboratory, Ferhat Abbas University

Email: petroprom2013@yandex.ru
Algeria, M’sila; Setif

M. Fatmi

Research Unit on Engineering Materials (RUEM), Ferhat Abbas University

Email: petroprom2013@yandex.ru
Algeria, Setif

F. Sahnoune

Physics Department, Faculty of Science, University of M’sila

Email: petroprom2013@yandex.ru
Algeria, M’sila

M. Heraiz

Physics Department, Faculty of Science, University of M’sila

Email: petroprom2013@yandex.ru
Algeria, M’sila

N. Saheb

Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals

Email: petroprom2013@yandex.ru
Saudi Arabia, Dhahran

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