Hot deformation behavior of AZ91 magnesium alloy in temperature ranging from 350 °C to 425 °C
作者： GR EBRAHIMI , AR MALDAR , H MONAJATI , M HAGHSHENAS , GR EBRAHIMI
DOI: 10.1016/S1003-6326(11)61429-5
关键词:
摘要: Abstract The flow behavior and microstructure evolution of AZ91 magnesium alloy during a thermomechanical process, hot compression test, was investigated. specimens were compressed at temperature ranging from 350°C to 425°C strain rate 0.1 s −1 the strains 0.3, 0.5 peak. Microstructural evolutions studied using optical scanning electron microscopes. results show that recrystallized grains nucleate along pre-existing grain boundaries. amount dynamically is increased with in sigmoid scheme followed by Avrami equation. size also increases beginning decreases after reaching maximum value.
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