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<p>This study investigates the effects of different annealing parameters on the microstructure, texture, and mechanical properties of hot-rolled pure yttrium plates using electron backscatter diffraction for the first time. With the increase of annealing temperature and time, the volume fraction of low-angle grain boundaries of hot-rolled pure yttrium plate decreases. While the intensity of the texture firstly decreases and then increases. During annealing at 600&#xa0;°C, the {0002} pole density shifted from deviating from the normal direction (ND) by ~ 30° to being in line with the ND as the annealing time increased, forming a typical basal texture. This can be attributed to its unique recrystallization mechanism. The strength and hardness of the as-annealed samples were significantly lower than that under the hot-rolled state, while the elongation increased when compared with the hot-rolled sample. The considerable mechanical properties of pure yttrium plate are obtained by hot rolling and following annealing at 600&#xa0;°C for 1&#xa0;h.</p>

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Effect of annealing parameters on microstructure, texture, and mechanical properties of hot-rolled pure yttrium plate

  • 期刊论文

  • 发表日期：

    2025年4月5日

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  • Wei Ruan,
  • Linguang Luo,
  • Jiajie Li,
  • Liping Deng,
  • Chen Wang,
  • Junfeng Chen,
  • Lei Xiao,
  • Yongjian Zhang,
  • Bingshu Wang

摘要

This study investigates the effects of different annealing parameters on the microstructure, texture, and mechanical properties of hot-rolled pure yttrium plates using electron backscatter diffraction for the first time. With the increase of annealing temperature and time, the volume fraction of low-angle grain boundaries of hot-rolled pure yttrium plate decreases. While the intensity of the texture firstly decreases and then increases. During annealing at 600 °C, the {0002} pole density shifted from deviating from the normal direction (ND) by ~ 30° to being in line with the ND as the annealing time increased, forming a typical basal texture. This can be attributed to its unique recrystallization mechanism. The strength and hardness of the as-annealed samples were significantly lower than that under the hot-rolled state, while the elongation increased when compared with the hot-rolled sample. The considerable mechanical properties of pure yttrium plate are obtained by hot rolling and following annealing at 600 °C for 1 h.