The effect of hydrostatic pressure on the activation of non-basal slip in a magnesium alloy
The effect of hydrostatic pressure on the activation of non-basal slip in a magnesium alloy
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静水压力对镁合金非基滑移活化的影响
DOI：
10.1016/j.scriptamat.2009.07.011
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发表时间：
2009-10-01
影响因子：
6
通讯作者：
Zhao, Xiang
中科院分区：
文献类型：
--
作者：
Kang, Feng;Liu, Jin Qiang;Zhao, Xiang
在镁合金的等通道转角挤压（ECAP）过程中施加静水压力（背压）导致显著增强的晶粒细化，以及（0002）主导织构组分从一个强峰分裂成两个弱峰。这与假设< c + a >非基底滑移的显著贡献的现有纹理模拟结果很好地对应。透射电子显微镜观察显示< c + a >位错的流行，从而证实了在ECAP过程中施加静水压力已经改变了变形机制。(C)2009 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
The application of hydrostatic pressure (backpressure) during equal channel angular pressing (ECAP) of a magnesium alloy results in much enhanced grain refinement, and the splitting of the (0002) dominant texture component from one strong peak into two weak peaks. This corresponds well with the existing texture simulation results assuming significant contribution of < c + a > non-basal slip. Transmission electron microscopy observation shows the prevalence of < c + a > dislocations and thus confirms that the deformation mechanism has been changed by the application of hydrostatic pressure during ECAP. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.