Microstructure development and texture study of Mg-Al-Sn alloys by strain induced precipitation

Abstract

Mg-Al-Sn alloys have been designed using thermodynamic modeling software, FactSage, based on forming target Mg2Sn precipitate at hot deformation temperatures between 250 and 350°C. Uniaxial compression has been introduced at these elevated temperatures to enhance the formation of precipitates. The aim of this work is to investigate the effect of this strain induced precipitates on microstructure and texture evolution. It was found that the precipitates not only hinder the dynamic recrystallized grain boundary movement but also retards the onset of dynamic recrystallization reducing the final grain size. Copyright © 2013 MS&T'13®.