Title of article :
Effect of Equal Channel Angular Pressing and Annealing Treatment on the Evolution of Microstructure in A1Mg0.7Si Aluminum Alloy
Author/Authors :
Eivani, A. R School of Metallurgy and Materials Engineering - IranUniversity of Science and Technology, Thhran , Seyedein, S. H School of Metallurgy and Materials Engineering - IranUniversity of Science and Technology, Thhran , Aboutalebi, M School of Metallurgy and Materials Engineering - IranUniversity of Science and Technology, Thhran
Abstract :
Samples of AIMgO. 7Si aluminum alloy were deformed up to three passes using equal channel angular pressing (ECAP). Formation of a sub-micron shucture after three passes of ECAP was demonstrated. Microshuctural stability of the samples was investigated at temperatures 300-500 °C. At 300 °C, fine recrystallized structure was formed after 10 min which was remained stable when the annealing was proceeded up to 18 h. However, at 350 °C and higher, the microshucture was quite unatable. Even by 10 s annealing, the samples exhibited recrystallized structure which turned to abnormal grain growth when temperature enhanced to 500 °C and time up to 300 sec.
Keywords :
Equal Channel Angular Pressing , A/MgO. 7Si , Microstructural Stability
Journal title :
Astroparticle Physics
