The influence of the recrystallization mechanisms and grain growth on the texture of a hot rolled AZ31 sheet during subsequent isochronal annealing
The influence of the recrystallization mechanisms and grain growth on the texture of a hot rolled AZ31 sheet during subsequent isochronal annealing
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DOI：
10.1016/j.jallcom.2014.07.083
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发表时间：
2014-12-15
影响因子：
6.2
通讯作者：
Letzig, D.
中科院分区：
文献类型：
--
作者：
Victoria-Hernandez, J.;Yi, S.;Letzig, D.
研究了双辊铸轧镁合金AZ31热轧板在250、300和350 ℃等时退火30 min过程中织构的演变规律。结果发现，轧制织构显示出类似于在添加稀土的轧制镁合金中发展的织构的一些特征。在进一步的热处理过程中，特别注意变形和再结晶机制，以及控制织构发展的晶粒生长。结果发现，在250和300 ℃下，延伸回复和不连续再结晶通过产生具有偏离基底取向的无应变晶粒来影响织构。相反，在350 ℃退火期间，晶粒的c轴接近（0001）的生长导致形成公知的基底型织构。(C)2014爱思唯尔有限公司版权所有。
The texture development during isochronal annealing at 250, 300 and 350 degrees C for 30 min of a hot rolled Mg AZ31 sheet produced by twin-roll casting was studied in this work. It was found that the rolling texture shows some features that resemble the textures that develop in rolled Mg alloys with rare earth additions. During further heat treatment, special attention was given to the deformation and recrystallization mechanisms, and grain growth that control the texture development. It was found that at 250 and 300 degrees C extended recovery and discontinuous recrystallization influence the texture by generating strain free grains with off-basal orientation. Conversely, during annealing at 350 degrees C growth of grains with their c-axis close to the (0001) leads to the formation of the well-known basal type texture. (C) 2014 Elsevier B.V. All rights reserved.