Cold rolling textures in AZ31 wrought magnesium alloy
Cold rolling textures in AZ31 wrought magnesium alloy
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DOI：
10.1016/j.scriptamat.2004.01.010
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发表时间：
2004-04-01
影响因子：
6
通讯作者：
Letzig, D
中科院分区：
文献类型：
--
作者：
Styczynski, A;Hartig, C;Letzig, D
在室温下对具有再结晶和挤压铸造两种显微组织的镁合金AZ 31（3wt%Al，1wt%Zn，余量Mg）样品进行轧制。用X射线衍射研究了冷轧织构的初始织构和最终织构。两种初始显微组织的冷轧织构均由两种纤维组成，代表从法线方向向轧制方向倾斜+/-15度的基底极中常见的双峰。一个系统的纹理建模进行了粘塑性泰勒模型，基于不同的组合的四个滑移模式和一个孪生模式。对于-基底、-棱柱、-棱锥滑移系与{01（1）over bar 2}（01（11）over bar 1）孪晶系的组合，可以达到与实验最好的一致。(C)2004 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
Samples of the magnesium alloy AZ31 (3 wt% Al, 1 wt% Zn, balance Mg) with two microstructures, recrystallized and squeeze cast, were rolled at room temperature. The initial texture and the final cold rolling texture were investigated by X-ray diffraction. The cold rolling texture of both examined initial microstructures consists of two fibres, representing the familiar double peak in the basal pole tilted +/-15degrees from the normal direction to the rolling direction. A systematic texture modelling was performed using a viscoplastic Taylor model, based on different combinations of four slip modes and one twinning mode. The best agreement with experiment can be achieved for a combination of -basal, -prismatic, -pyramidal slip systems together with the {01 (1) over bar2} (01 (11) over bar1) twinning system. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.