Nano recrystallization during severe plastic deformation of AZ31 magnesium alloy |
کد مقاله : 1948-IMES-CONGR-FULL |
نویسندگان: |
سید محمود فاطمی ورزنه *1، Abbas Zarei-Hanzaki2 1دانشکده فنی 2University of Tehran |
چکیده مقاله: |
An AZ31 magnesium alloy was deformed through accumulative back extrusion method. Ultra fine and nano grains were developed after deformation at 130 °C. Microstructural analysis showed that mechanical shear banding may associated with the recrystallization of nano grains. This was discussed relying on the occurrence of continuous dynamic recrystallization. Moreover, nano grains were traced to form within nano twins. A strain induced splitting process may transverse the twin bands into nano-sized segments. |
کلیدواژه ها: |
recrystallization, nano grain, twin |
وضعیت : مقاله برای ارائه شفاهی پذیرفته شده است |