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A special band structure perpendicular to the basal planes formed in a magnesium alloy during hot-rolling process

机译:垂直于镁合金在热轧过程中形成的垂直于基面的特殊带状结构

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摘要

Special band structures were observed in original matrix of AZ31 alloy during hot-rolling process. They were always perpendicular to basal planes, formed by intersecting of a + C slip on prismatic plane with basal dislocations. The misorientation gradient was much higher across band area than locally inside. Such bands showed straight morphology at low rolling strain range, which effectively strengthened the material by reducing the mean free path of slipping dislocations on basal plane in original matrix, without evident loss in ductility. On further strain, the bands structures became more severely deformed, which lead to a gradual increase in strength and a quick drop in ductility.
机译:在热轧过程中,在AZ31合金的原始基体中观察到特殊的能带结构。它们始终垂直于基底平面,该基底平面是由棱镜平面上的+ C滑移与基底位错相交形成的。整个带区的取向差梯度比内部的高得多。这样的带在低滚动应变范围内表现出笔直的形态,通过减小原始基体在基面上的滑脱位错的平均自由程,有效地增强了材料,而没有明显的延展性损失。随着进一步的应变,带状结构变得更加严重地变形,从而导致强度逐渐增加和延性迅速下降。

著录项

  • 来源
    《Materials Science and Engineering》 |2017年第4期|244-250|共7页
  • 作者单位

    School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China;

    School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China,SIMAP laboratory, CNRS-Grenoble INP, BP 46 101 rue de la Physique, 38402 Saint Martin d'Hires, France;

    School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China;

    School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China;

    School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China;

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

    Magnesium alloy; Band structure; Rolling;

    机译:镁合金带结构;滚动;

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