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首页> 外文期刊>Materials Science and Engineering >Twinning and its related work hardening during the ambient extrusion of a magnesium alloy
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Twinning and its related work hardening during the ambient extrusion of a magnesium alloy

机译：镁合金室温挤压过程中的孪晶及其相关的工作硬化

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摘要

Uniaxial extrusion was used to impact different strains up to nearly 70% to an AZ31 alloy at room temperature. Tensile tests were then conducted on the pre-strained samples to track the overall working hardening with strain. Transmission electron microscope (TEM) and X-ray diffraction was used to investigate the twinning behavior and twinning related texture during this ambient extrusion. Twinning bands were considered most effective in accommodating the imposed strain, and were found follow highest Schmid factor. Localized strain occurred within twinning area, however, no evident work softening could be found.
机译：在室温下，单轴挤压可将高达70％的不同应变冲击到AZ31合金上。然后在预应变的样品上进行拉伸测试，以跟踪整体的应变加工硬化。使用透射电子显微镜（TEM）和X射线衍射研究在这种环境挤压过程中的孪生行为和孪生相关的织构。孪生带被认为是最有效地适应施加的应变，并发现遵循最高的施密特因子。孪生区内发生局部应变，但未发现明显的功软化现象。

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  • 来源
    《Materials Science and Engineering》 |2013年第10期|125-137|共13页
  • 作者

    Zhen Zhang;

  • 作者单位

    School of Metallurgical Science and Engineering, Central South University, Changsha 470083, China,Institute for Frontier Materials, Ceelong Technology Precinct, Deakin University, Geelong, VIC 3220, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Twinning; Texture; Extrusion; Magnesium alloys;

    机译：孪生;质地;挤压;镁合金;

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