Dynamic recrystallization in AZ31 magnesium alloy
Dynamic recrystallization in AZ31 magnesium alloy
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DOI：
10.1016/j.msea.2006.11.095
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发表时间：
2007-05-15
期刊：
影响因子：
6.4
通讯作者：
Beladi, H.
中科院分区：
文献类型：
--
作者：
Fatemi-Varzaneh, S. M.;Zarei-Hanzaki, A.;Beladi, H.
研究了温度和应变速率这两个最重要的形变形变参数对AZ31镁合金组织演变的影响。这是在250-450摄氏度的温度范围内以不同的应变率进行的热压缩试验。结果表明，随着Zener-Holloun参数的减小，动态再结晶晶粒的数量和尺寸增大。此外，还考察了动态再结晶晶粒随应变的变化规律。一般情况下，动态再结晶的晶粒度随应变呈S型增加。然而，随着应变的增加，相关的晶粒度保持不变。(C)2006爱思唯尔B.V.保留所有权利。
The effects of temperature and strain rate, as the most important thermomechanical processing (TMP) parameters, on the microstructural evolution of AZ31 magnesium alloy were studied. This was performed applying hot compression tests at a temperature range of 250-450 degrees C with various strain rates. The results indicated that the amount and the size of dynamically recrystallized grains are increased as Zener-Hollomon parameter decreased. In addition, the evolution of dynamically recrystallized grains was examined with increasing strain. In general, the amount of dynamically recrystallized grain is observed to increase with strain in a sigmoidal form. However, the related grain size was remained constant as strain increased. (C) 2006 Elsevier B.V. All rights reserved.