Flow stress and softening behavior of wrought magnesium alloy AZ31B at elevated temperature

来源期刊：中国有色金属学报(英文版)2003年第2期

论文作者：汪凌云 范永革 黄光杰 黄光胜

文章页码：335 - 338

Key words：magnesium alloy; compression; flow stress; dynamic recrystallization

Abstract: The flow stress and softening behavior of AZ31B magnesium alloy in hot compression were investigated. The relationship of flow stress, temperature and strain rate was appropriately described with the exponential form of Zener-Hollemen parameter during steady state deformation of alloy at 573-723K, 0.01-5s^-1. Dynamic recrystallization is the softening mechanism of AZ31B in hot compression. The flow curves of alloy have almost no peak value at 723K and lower strain rate, presenting feature of geometric dynamic recrystallization.