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首页> 外文期刊>Materials science forum >Microstructure and Texture Evolution of Repetitive Upsetting-Extruded (RUEed) Mg-Gd-Y-Zn-Zr Alloy after Hot Compression
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Microstructure and Texture Evolution of Repetitive Upsetting-Extruded (RUEed) Mg-Gd-Y-Zn-Zr Alloy after Hot Compression

机译：热压缩后重复镦粗挤出（Rueed）Mg-Gd-Y-Zn-Zr合金的微观结构和纹理演化

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摘要

In order to determine the deformation temperature of next pass, the hot compression tests were performed by Gleeble-3800 at different temperature form 380 to 420 °C. The microstructure and texture evolution of repetitive upsetting-extruded (RUEed) Mg-Gd-Y-Zn-Zr alloy during hot compression were studied by electron backscattering diffraction (EBSD) analysis. The results showed that the dynamic recrystallization (DRX) occured during the hot compression processing from the strain-stress flow curves. When the temperature increased to 420 °C, the average grain size reduced to 6.64 μm, and the volume fraction of DRXed grains increased to 81.5%. All the compressed alloys exhibited a typical compression texture, the maximum texture intensity of {0001} plane gradually decreased with increasing temperature. When the compression temperature was up to 420°C, the the maximum texture intensity of {0001} plane was 3.207 due to the effect of DRXed grains. Finally, 420°C is chosen as the next deformation of next pass because of the more precipitation and DRXed grains.
机译：为了确定下一次通过的变形温度，通过在不同温度形式380至420℃下的GLEEBLE-3800进行热压缩试验。通过电子反向散射衍射（EBSD）分析研究了热压缩期间重复镦粗挤出（Rueed）Mg-Gd-Y-Zn-Zr合金的微观结构和质地演化。结果表明，在应变应力流动曲线的热压缩处理期间发生动态再结晶（DRX）。当温度升至420℃时，平均晶粒尺寸降至6.64μm，下降颗粒的体积分数增加到81.5％。所有压缩合金都表现出典型的压缩纹理，{0001}平面的最大纹理强度随着温度的增加而逐渐降低。当压缩温度高达420℃时，由于Drxed晶粒的效果，{0001}平面的最大纹理强度为3.207。最后，由于沉淀和下降的晶粒越多，420°C作为下一个通过的下一个变形。

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  • 来源
    《Materials science forum》 |2021年第1期|63-71|共9页
  • 作者

    Beibei Dong; Zhimin Zhang; Jianmin Yu; Xin Che;

  • 作者单位

    College of Materials Science and Engineering North University of China 3 Xueyuan Road Taiyuan 030051 China;

    College of Materials Science and Engineering North University of China 3 Xueyuan Road Taiyuan 030051 China;

    College of Materials Science and Engineering North University of China 3 Xueyuan Road Taiyuan 030051 China;

    College of Materials Science and Engineering North University of China 3 Xueyuan Road Taiyuan 030051 China;

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

    deformation temperature; compression tests; Mg-Gd-Y-Zn-Zr alloy; dynamic recrystallization (DRX);

    机译：变形温度;压缩测试;Mg-Gd-Y-Zn-Zr合金;动态再结晶（DRX）;

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